docs: usb: convert documents to ReST
Convert USB documents to ReST, in order to prepare for adding it to the kernel API book, as most of the stuff there are driver or subsystem-related. Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1,7 +1,9 @@
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================================
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Linux UWB + Wireless USB + WiNET
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================================
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Copyright (C) 2005-2006 Intel Corporation
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(C) 2005-2006 Intel Corporation
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Inaky Perez-Gonzalez <inaky.perez-gonzalez@intel.com>
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This program is free software; you can redistribute it and/or
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@ -29,6 +31,7 @@ drivers for the USB based UWB radio controllers defined in the
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Wireless USB 1.0 specification (including Wireless USB host controller
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and an Intel WiNET controller).
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.. Contents
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1. Introduction
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1. HWA: Host Wire adapters, your Wireless USB dongle
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@ -52,6 +55,7 @@ and an Intel WiNET controller).
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Introduction
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============
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UWB is a wide-band communication protocol that is to serve also as the
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low-level protocol for others (much like TCP sits on IP). Currently
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@ -94,6 +98,7 @@ The different logical parts of this driver are:
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HWA: Host Wire adapters, your Wireless USB dongle
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-------------------------------------------------
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WUSB also defines a device called a Host Wire Adaptor (HWA), which in
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mere terms is a USB dongle that enables your PC to have UWB and Wireless
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@ -126,6 +131,7 @@ The HWA itself is broken in two or three main interfaces:
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DWA: Device Wired Adaptor, a Wireless USB hub for wired devices
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---------------------------------------------------------------
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These are the complement to HWAs. They are a USB host for connecting
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wired devices, but it is connected to your PC connected via Wireless
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@ -138,6 +144,7 @@ has been done to support that in upcoming releases.
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WHCI: Wireless Host Controller Interface, the PCI WUSB host adapter
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-------------------------------------------------------------------
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This is your usual PCI device that implements WHCI. Similar in concept
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to EHCI, it allows your wireless USB devices (including DWAs) to connect
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@ -149,6 +156,7 @@ releases.
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The UWB stack
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=============
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The main mission of the UWB stack is to keep a tally of which devices
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are in radio proximity to allow drivers to connect to them. As well, it
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@ -157,6 +165,7 @@ now on), such as to start/stop beaconing, scan, allocate bandwidth, etc.
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Devices and hosts: the basic structure
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--------------------------------------
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The main building block here is the UWB device (struct uwb_dev). For
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each device that pops up in radio presence (ie: the UWB host receives a
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@ -188,6 +197,7 @@ for the PCI connected WHCI controller.
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Host Controller life cycle
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--------------------------
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So let's say we connect a dongle to the system: it is detected and
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firmware uploaded if needed [for Intel's i1480
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@ -210,6 +220,7 @@ takes time of tearing everything down safely (or not...).
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On the air: beacons and enumerating the radio neighborhood
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----------------------------------------------------------
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So assuming we have devices and we have agreed for a channel to connect
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on (let's say 9), we put the new RC to beacon:
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@ -236,11 +247,13 @@ the beacon cache of dead devices].
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Device lists
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------------
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All UWB devices are kept in the list of the struct bus_type uwb_bus_type.
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Bandwidth allocation
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--------------------
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The UWB stack maintains a local copy of DRP availability through
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processing of incoming *DRP Availability Change* notifications. This
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@ -261,6 +274,7 @@ subject to change.]
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Wireless USB Host Controller drivers
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====================================
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*WARNING* This section needs a lot of work!
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@ -296,7 +310,8 @@ starts sending MMCs.
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Now it all depends on external stimuli.
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*New device connection*
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New device connection
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---------------------
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A new device pops up, it scans the radio looking for MMCs that give out
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the existence of Wireless USB channels. Once one (or more) are found,
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@ -322,7 +337,8 @@ has seen the port status changes, as we have been toggling them. It will
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start enumerating and doing transfers through usb_hcd->urb_enqueue() to
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read descriptors and move our data.
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*Device life cycle and keep alives*
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Device life cycle and keep alives
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---------------------------------
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Every time there is a successful transfer to/from a device, we update a
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per-device activity timestamp. If not, every now and then we check and
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@ -340,7 +356,8 @@ device list looking for whom needs refreshing.
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If the device wants to disconnect, it will either die (ugly) or send a
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/DN_Disconnect/ that will prompt a disconnection from the system.
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*Sending and receiving data*
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Sending and receiving data
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--------------------------
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Data is sent and received through /Remote Pipes/ (rpipes). An rpipe is
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/aimed/ at an endpoint in a WUSB device. This is the same for HWAs and
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@ -394,7 +411,8 @@ finalize the transfer.
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For IN xfers, we only issue URBs for the segments we want to read and
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then wait for the xfer result data.
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*URB mapping into xfers*
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URB mapping into xfers
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^^^^^^^^^^^^^^^^^^^^^^
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This is done by hwahc_op_urb_[en|de]queue(). In enqueue() we aim an
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rpipe to the endpoint where we have to transmit, create a transfer
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@ -408,6 +426,7 @@ called--this will call the URB callback.
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Glossary
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========
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*DWA* -- Device Wire Adapter
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@ -436,4 +455,3 @@ the host.
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Design-overview.txt-1.8 (last edited 2006-11-04 12:22:24 by
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InakyPerezGonzalez)
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@ -1,7 +1,10 @@
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======================
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Linux ACM driver v0.16
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(c) 1999 Vojtech Pavlik <vojtech@suse.cz>
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======================
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Copyright (c) 1999 Vojtech Pavlik <vojtech@suse.cz>
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Sponsored by SuSE
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----------------------------------------------------------------------------
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0. Disclaimer
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~~~~~~~~~~~~~
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@ -19,8 +22,8 @@ more details.
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with this program; if not, write to the Free Software Foundation, Inc., 59
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Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Should you need to contact me, the author, you can do so either by e-mail
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- mail your message to <vojtech@suse.cz>, or by paper mail: Vojtech Pavlik,
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Should you need to contact me, the author, you can do so either by e-mail -
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mail your message to <vojtech@suse.cz>, or by paper mail: Vojtech Pavlik,
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Ucitelska 1576, Prague 8, 182 00 Czech Republic
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For your convenience, the GNU General Public License version 2 is included
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@ -34,26 +37,26 @@ Abstract Control Model (USB CDC ACM) specification.
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Many modems do, here is a list of those I know of:
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3Com OfficeConnect 56k
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3Com Voice FaxModem Pro
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3Com Sportster
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MultiTech MultiModem 56k
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Zoom 2986L FaxModem
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Compaq 56k FaxModem
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ELSA Microlink 56k
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- 3Com OfficeConnect 56k
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- 3Com Voice FaxModem Pro
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- 3Com Sportster
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- MultiTech MultiModem 56k
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- Zoom 2986L FaxModem
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- Compaq 56k FaxModem
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- ELSA Microlink 56k
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I know of one ISDN TA that does work with the acm driver:
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3Com USR ISDN Pro TA
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- 3Com USR ISDN Pro TA
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Some cell phones also connect via USB. I know the following phones work:
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SonyEricsson K800i
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- SonyEricsson K800i
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Unfortunately many modems and most ISDN TAs use proprietary interfaces and
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thus won't work with this drivers. Check for ACM compliance before buying.
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To use the modems you need these modules loaded:
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To use the modems you need these modules loaded::
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usbcore.ko
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uhci-hcd.ko ohci-hcd.ko or ehci-hcd.ko
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@ -64,8 +67,9 @@ minicom, ppp and mgetty with them.
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2. Verifying that it works
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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The first step would be to check /sys/kernel/debug/usb/devices, it should look
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like this:
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like this::
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T: Bus=01 Lev=00 Prnt=00 Port=00 Cnt=00 Dev#= 1 Spd=12 MxCh= 2
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B: Alloc= 0/900 us ( 0%), #Int= 0, #Iso= 0
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The presence of these three lines (and the Cls= 'comm' and 'data' classes)
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is important, it means it's an ACM device. The Driver=acm means the acm
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driver is used for the device. If you see only Cls=ff(vend.) then you're out
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of luck, you have a device with vendor specific-interface.
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of luck, you have a device with vendor specific-interface::
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D: Ver= 1.00 Cls=02(comm.) Sub=00 Prot=00 MxPS= 8 #Cfgs= 2
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I: If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=acm
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I: If#= 1 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=acm
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In the system log you should see:
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In the system log you should see::
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usb.c: USB new device connect, assigned device number 2
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usb.c: kmalloc IF c7691fa0, numif 1
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@ -1,7 +1,8 @@
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==============================================================
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Authorizing (or not) your USB devices to connect to the system
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==============================================================
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(C) 2007 Inaky Perez-Gonzalez <inaky@linux.intel.com> Intel Corporation
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Copyright (C) 2007 Inaky Perez-Gonzalez <inaky@linux.intel.com> Intel Corporation
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This feature allows you to control if a USB device can be used (or
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not) in a system. This feature will allow you to implement a lock-down
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modification, only if root authorizes the device to be configured will
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then it be possible to use it.
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Usage:
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Usage
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=====
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Authorize a device to connect:
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Authorize a device to connect::
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$ echo 1 > /sys/bus/usb/devices/DEVICE/authorized
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Deauthorize a device:
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De-authorize a device::
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$ echo 0 > /sys/bus/usb/devices/DEVICE/authorized
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Set new devices connected to hostX to be deauthorized by default (ie:
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lock down):
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lock down)::
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$ echo 0 > /sys/bus/usb/devices/usbX/authorized_default
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Remove the lock down:
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Remove the lock down::
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$ echo 1 > /sys/bus/usb/devices/usbX/authorized_default
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Example system lockdown (lame)
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-----------------------
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------------------------------
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Imagine you want to implement a lockdown so only devices of type XYZ
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can be connected (for example, it is a kiosk machine with a visible
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USB port):
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USB port)::
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boot up
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rc.local ->
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@ -54,7 +56,7 @@ rc.local ->
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echo 0 > $host/authorized_default
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done
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Hookup an script to udev, for new USB devices
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Hookup an script to udev, for new USB devices::
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if device_is_my_type $DEV
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then
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@ -67,7 +69,7 @@ checking if the class, type and protocol match something is the worse
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security verification you can make (or the best, for someone willing
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to break it). If you need something secure, use crypto and Certificate
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Authentication or stuff like that. Something simple for an storage key
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could be:
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could be::
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function device_is_my_type()
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{
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@ -95,22 +97,27 @@ welcome.
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Interface authorization
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-----------------------
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There is a similar approach to allow or deny specific USB interfaces.
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That allows to block only a subset of an USB device.
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Authorize an interface:
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Authorize an interface::
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$ echo 1 > /sys/bus/usb/devices/INTERFACE/authorized
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Deauthorize an interface:
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Deauthorize an interface::
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$ echo 0 > /sys/bus/usb/devices/INTERFACE/authorized
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The default value for new interfaces
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on a particular USB bus can be changed, too.
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Allow interfaces per default:
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Allow interfaces per default::
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$ echo 1 > /sys/bus/usb/devices/usbX/interface_authorized_default
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Deny interfaces per default:
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Deny interfaces per default::
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$ echo 0 > /sys/bus/usb/devices/usbX/interface_authorized_default
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Per default the interface_authorized_default bit is 1.
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@ -1,22 +1,37 @@
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==============================================
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ChipIdea Highspeed Dual Role Controller Driver
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==============================================
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1. How to test OTG FSM(HNP and SRP)
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-----------------------------------
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To show how to demo OTG HNP and SRP functions via sys input files
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with 2 Freescale i.MX6Q sabre SD boards.
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1.1 How to enable OTG FSM
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---------------------------------------
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-------------------------
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1.1.1 Select CONFIG_USB_OTG_FSM in menuconfig, rebuild kernel
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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Image and modules. If you want to check some internal
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variables for otg fsm, mount debugfs, there are 2 files
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which can show otg fsm variables and some controller registers value:
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which can show otg fsm variables and some controller registers value::
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cat /sys/kernel/debug/ci_hdrc.0/otg
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cat /sys/kernel/debug/ci_hdrc.0/registers
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1.1.2 Add below entries in your dts file for your controller node
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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::
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otg-rev = <0x0200>;
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adp-disable;
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1.2 Test operations
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-------------------
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1) Power up 2 Freescale i.MX6Q sabre SD boards with gadget class driver loaded
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(e.g. g_mass_storage).
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@ -26,18 +41,23 @@ cat /sys/kernel/debug/ci_hdrc.0/registers
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The A-device(with micro A plug inserted) should enumerate B-device.
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3) Role switch
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On B-device:
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On B-device::
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echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
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B-device should take host role and enumerate A-device.
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4) A-device switch back to host.
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On B-device:
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On B-device::
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echo 0 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
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or, by introducing HNP polling, B-Host can know when A-peripheral wish
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to be host role, so this role switch also can be trigged in A-peripheral
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side by answering the polling from B-Host, this can be done on A-device:
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side by answering the polling from B-Host, this can be done on A-device::
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echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req
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A-device should switch back to host and enumerate B-device.
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|
@ -49,22 +69,30 @@ cat /sys/kernel/debug/ci_hdrc.0/registers
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A-device should NOT enumerate B-device.
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if A-device wants to use bus:
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On A-device:
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On A-device::
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echo 0 > /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop
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echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_req
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if B-device wants to use bus:
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On B-device:
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On B-device::
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echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
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7) A-device power down the bus.
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On A-device:
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On A-device::
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echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/a_bus_drop
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A-device should disconnect with B-device and power down the bus.
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8) B-device does data pulse for SRP.
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On B-device:
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On B-device::
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echo 1 > /sys/bus/platform/devices/ci_hdrc.0/inputs/b_bus_req
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A-device should resume usb bus and enumerate B-device.
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|
@ -75,22 +103,31 @@ cat /sys/kernel/debug/ci_hdrc.0/registers
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July 27, 2012 Revision 2.0 version 1.1a"
|
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2. How to enable USB as system wakeup source
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-----------------------------------
|
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--------------------------------------------
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Below is the example for how to enable USB as system wakeup source
|
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at imx6 platform.
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2.1 Enable core's wakeup
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2.1 Enable core's wakeup::
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echo enabled > /sys/bus/platform/devices/ci_hdrc.0/power/wakeup
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2.2 Enable glue layer's wakeup
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2.2 Enable glue layer's wakeup::
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echo enabled > /sys/bus/platform/devices/2184000.usb/power/wakeup
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2.3 Enable PHY's wakeup (optional)
|
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2.3 Enable PHY's wakeup (optional)::
|
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echo enabled > /sys/bus/platform/devices/20c9000.usbphy/power/wakeup
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2.4 Enable roothub's wakeup
|
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2.4 Enable roothub's wakeup::
|
||||
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echo enabled > /sys/bus/usb/devices/usb1/power/wakeup
|
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2.5 Enable related device's wakeup
|
||||
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||||
2.5 Enable related device's wakeup::
|
||||
|
||||
echo enabled > /sys/bus/usb/devices/1-1/power/wakeup
|
||||
|
||||
If the system has only one usb port, and you want usb wakeup at this port, you
|
||||
can use below script to enable usb wakeup.
|
||||
for i in $(find /sys -name wakeup | grep usb);do echo enabled > $i;done;
|
||||
can use below script to enable usb wakeup::
|
||||
|
||||
for i in $(find /sys -name wakeup | grep usb);do echo enabled > $i;done;
|
||||
|
|
|
@ -1,6 +1,11 @@
|
|||
===========
|
||||
DWC3 driver
|
||||
===========
|
||||
|
||||
|
||||
TODO
|
||||
~~~~~~
|
||||
~~~~
|
||||
|
||||
Please pick something while reading :)
|
||||
|
||||
- Convert interrupt handler to per-ep-thread-irq
|
||||
|
@ -9,6 +14,7 @@ Please pick something while reading :)
|
|||
until the command completes which is bad.
|
||||
|
||||
Implementation idea:
|
||||
|
||||
- dwc core implements a demultiplexing irq chip for interrupts per
|
||||
endpoint. The interrupt numbers are allocated during probe and belong
|
||||
to the device. If MSI provides per-endpoint interrupt this dummy
|
||||
|
@ -19,6 +25,7 @@ Please pick something while reading :)
|
|||
- dwc3_send_gadget_ep_cmd() will sleep in wait_for_completion_timeout()
|
||||
until the command completes.
|
||||
- the interrupt handler is split into the following pieces:
|
||||
|
||||
- primary handler of the device
|
||||
goes through every event and calls generic_handle_irq() for event
|
||||
it. On return from generic_handle_irq() in acknowledges the event
|
||||
|
@ -40,6 +47,7 @@ Please pick something while reading :)
|
|||
for command completion.
|
||||
|
||||
Latency:
|
||||
|
||||
There should be no increase in latency since the interrupt-thread has a
|
||||
high priority and will be run before an average task in user land
|
||||
(except the user changed priorities).
|
||||
|
|
|
@ -1,3 +1,7 @@
|
|||
===========
|
||||
EHCI driver
|
||||
===========
|
||||
|
||||
27-Dec-2002
|
||||
|
||||
The EHCI driver is used to talk to high speed USB 2.0 devices using
|
||||
|
@ -40,7 +44,8 @@ APIs exposed to USB device drivers.
|
|||
<dbrownell@users.sourceforge.net>
|
||||
|
||||
|
||||
FUNCTIONALITY
|
||||
Functionality
|
||||
=============
|
||||
|
||||
This driver is regularly tested on x86 hardware, and has also been
|
||||
used on PPC hardware so big/little endianness issues should be gone.
|
||||
|
@ -48,6 +53,7 @@ It's believed to do all the right PCI magic so that I/O works even on
|
|||
systems with interesting DMA mapping issues.
|
||||
|
||||
Transfer Types
|
||||
--------------
|
||||
|
||||
At this writing the driver should comfortably handle all control, bulk,
|
||||
and interrupt transfers, including requests to USB 1.1 devices through
|
||||
|
@ -63,6 +69,7 @@ since EHCI represents these with a different data structure. So for now,
|
|||
most USB audio and video devices can't be connected to high speed buses.
|
||||
|
||||
Driver Behavior
|
||||
---------------
|
||||
|
||||
Transfers of all types can be queued. This means that control transfers
|
||||
from a driver on one interface (or through usbfs) won't interfere with
|
||||
|
@ -83,14 +90,15 @@ limits on the number of periodic transactions that can be scheduled,
|
|||
and prevent use of polling intervals of less than one frame.
|
||||
|
||||
|
||||
USE BY
|
||||
Use by
|
||||
======
|
||||
|
||||
Assuming you have an EHCI controller (on a PCI card or motherboard)
|
||||
and have compiled this driver as a module, load this like:
|
||||
and have compiled this driver as a module, load this like::
|
||||
|
||||
# modprobe ehci-hcd
|
||||
|
||||
and remove it by:
|
||||
and remove it by::
|
||||
|
||||
# rmmod ehci-hcd
|
||||
|
||||
|
@ -112,13 +120,16 @@ If you're using this driver on a 2.5 kernel, and you've enabled USB
|
|||
debugging support, you'll see three files in the "sysfs" directory for
|
||||
any EHCI controller:
|
||||
|
||||
"async" dumps the asynchronous schedule, used for control
|
||||
"async"
|
||||
dumps the asynchronous schedule, used for control
|
||||
and bulk transfers. Shows each active qh and the qtds
|
||||
pending, usually one qtd per urb. (Look at it with
|
||||
usb-storage doing disk I/O; watch the request queues!)
|
||||
"periodic" dumps the periodic schedule, used for interrupt
|
||||
"periodic"
|
||||
dumps the periodic schedule, used for interrupt
|
||||
and isochronous transfers. Doesn't show qtds.
|
||||
"registers" show controller register state, and
|
||||
"registers"
|
||||
show controller register state, and
|
||||
|
||||
The contents of those files can help identify driver problems.
|
||||
|
||||
|
@ -136,7 +147,8 @@ transaction translators are in use; some drivers have been seen to behave
|
|||
badly when they see different faults than OHCI or UHCI report.
|
||||
|
||||
|
||||
PERFORMANCE
|
||||
Performance
|
||||
===========
|
||||
|
||||
USB 2.0 throughput is gated by two main factors: how fast the host
|
||||
controller can process requests, and how fast devices can respond to
|
||||
|
@ -156,6 +168,7 @@ hardware and device driver software allow it. Periodic transfer modes
|
|||
approach the quoted 480 MBit/sec transfer rate.
|
||||
|
||||
Hardware Performance
|
||||
--------------------
|
||||
|
||||
At this writing, individual USB 2.0 devices tend to max out at around
|
||||
20 MByte/sec transfer rates. This is of course subject to change;
|
||||
|
@ -183,6 +196,7 @@ you issue a control or bulk request you can often expect to learn that
|
|||
it completed in less than 250 usec (depending on transfer size).
|
||||
|
||||
Software Performance
|
||||
--------------------
|
||||
|
||||
To get even 20 MByte/sec transfer rates, Linux-USB device drivers will
|
||||
need to keep the EHCI queue full. That means issuing large requests,
|
||||
|
@ -206,9 +220,11 @@ mapping (which might apply an IOMMU) and IRQ reduction, all of which will
|
|||
help make high speed transfers run as fast as they can.
|
||||
|
||||
|
||||
TBD: Interrupt and ISO transfer performance issues. Those periodic
|
||||
TBD:
|
||||
Interrupt and ISO transfer performance issues. Those periodic
|
||||
transfers are fully scheduled, so the main issue is likely to be how
|
||||
to trigger "high bandwidth" modes.
|
||||
|
||||
TBD: More than standard 80% periodic bandwidth allocation is possible
|
||||
TBD:
|
||||
More than standard 80% periodic bandwidth allocation is possible
|
||||
through sysfs uframe_periodic_max parameter. Describe that.
|
||||
|
|
|
@ -1,4 +1,6 @@
|
|||
*How FunctionFS works*
|
||||
====================
|
||||
How FunctionFS works
|
||||
====================
|
||||
|
||||
From kernel point of view it is just a composite function with some
|
||||
unique behaviour. It may be added to an USB configuration only after
|
||||
|
@ -38,7 +40,7 @@ when mounting.
|
|||
|
||||
One can imagine a gadget that has an Ethernet, MTP and HID interfaces
|
||||
where the last two are implemented via FunctionFS. On user space
|
||||
level it would look like this:
|
||||
level it would look like this::
|
||||
|
||||
$ insmod g_ffs.ko idVendor=<ID> iSerialNumber=<string> functions=mtp,hid
|
||||
$ mkdir /dev/ffs-mtp && mount -t functionfs mtp /dev/ffs-mtp
|
||||
|
@ -64,4 +66,3 @@ have been written to their ep0's.
|
|||
|
||||
Conversely, the gadget is unregistered after the first USB function
|
||||
closes its endpoints.
|
||||
|
||||
|
|
|
@ -1,6 +1,12 @@
|
|||
==============
|
||||
Gadget Testing
|
||||
==============
|
||||
|
||||
This file summarizes information on basic testing of USB functions
|
||||
provided by gadgets.
|
||||
|
||||
.. contents
|
||||
|
||||
1. ACM function
|
||||
2. ECM function
|
||||
3. ECM subset function
|
||||
|
@ -44,13 +50,23 @@ There can be at most 4 ACM/generic serial/OBEX ports in the system.
|
|||
Testing the ACM function
|
||||
------------------------
|
||||
|
||||
On the host: cat > /dev/ttyACM<X>
|
||||
On the device : cat /dev/ttyGS<Y>
|
||||
On the host::
|
||||
|
||||
cat > /dev/ttyACM<X>
|
||||
|
||||
On the device::
|
||||
|
||||
cat /dev/ttyGS<Y>
|
||||
|
||||
then the other way round
|
||||
|
||||
On the device: cat > /dev/ttyGS<Y>
|
||||
On the host: cat /dev/ttyACM<X>
|
||||
On the device::
|
||||
|
||||
cat > /dev/ttyGS<Y>
|
||||
|
||||
On the host::
|
||||
|
||||
cat /dev/ttyACM<X>
|
||||
|
||||
2. ECM function
|
||||
===============
|
||||
|
@ -63,13 +79,15 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "ecm".
|
||||
The ECM function provides these attributes in its function directory:
|
||||
|
||||
ifname - network device interface name associated with this
|
||||
=============== ==================================================
|
||||
ifname network device interface name associated with this
|
||||
function instance
|
||||
qmult - queue length multiplier for high and super speed
|
||||
host_addr - MAC address of host's end of this
|
||||
qmult queue length multiplier for high and super speed
|
||||
host_addr MAC address of host's end of this
|
||||
Ethernet over USB link
|
||||
dev_addr - MAC address of device's end of this
|
||||
dev_addr MAC address of device's end of this
|
||||
Ethernet over USB link
|
||||
=============== ==================================================
|
||||
|
||||
and after creating the functions/ecm.<instance name> they contain default
|
||||
values: qmult is 5, dev_addr and host_addr are randomly selected.
|
||||
|
@ -82,8 +100,13 @@ Testing the ECM function
|
|||
|
||||
Configure IP addresses of the device and the host. Then:
|
||||
|
||||
On the device: ping <host's IP>
|
||||
On the host: ping <device's IP>
|
||||
On the device::
|
||||
|
||||
ping <host's IP>
|
||||
|
||||
On the host::
|
||||
|
||||
ping <device's IP>
|
||||
|
||||
3. ECM subset function
|
||||
======================
|
||||
|
@ -96,13 +119,15 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "geth".
|
||||
The ECM subset function provides these attributes in its function directory:
|
||||
|
||||
ifname - network device interface name associated with this
|
||||
=============== ==================================================
|
||||
ifname network device interface name associated with this
|
||||
function instance
|
||||
qmult - queue length multiplier for high and super speed
|
||||
host_addr - MAC address of host's end of this
|
||||
qmult queue length multiplier for high and super speed
|
||||
host_addr MAC address of host's end of this
|
||||
Ethernet over USB link
|
||||
dev_addr - MAC address of device's end of this
|
||||
dev_addr MAC address of device's end of this
|
||||
Ethernet over USB link
|
||||
=============== ==================================================
|
||||
|
||||
and after creating the functions/ecm.<instance name> they contain default
|
||||
values: qmult is 5, dev_addr and host_addr are randomly selected.
|
||||
|
@ -115,8 +140,13 @@ Testing the ECM subset function
|
|||
|
||||
Configure IP addresses of the device and the host. Then:
|
||||
|
||||
On the device: ping <host's IP>
|
||||
On the host: ping <device's IP>
|
||||
On the device::
|
||||
|
||||
ping <host's IP>
|
||||
|
||||
On the host::
|
||||
|
||||
ping <device's IP>
|
||||
|
||||
4. EEM function
|
||||
===============
|
||||
|
@ -129,13 +159,15 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "eem".
|
||||
The EEM function provides these attributes in its function directory:
|
||||
|
||||
ifname - network device interface name associated with this
|
||||
=============== ==================================================
|
||||
ifname network device interface name associated with this
|
||||
function instance
|
||||
qmult - queue length multiplier for high and super speed
|
||||
host_addr - MAC address of host's end of this
|
||||
qmult queue length multiplier for high and super speed
|
||||
host_addr MAC address of host's end of this
|
||||
Ethernet over USB link
|
||||
dev_addr - MAC address of device's end of this
|
||||
dev_addr MAC address of device's end of this
|
||||
Ethernet over USB link
|
||||
=============== ==================================================
|
||||
|
||||
and after creating the functions/eem.<instance name> they contain default
|
||||
values: qmult is 5, dev_addr and host_addr are randomly selected.
|
||||
|
@ -148,8 +180,13 @@ Testing the EEM function
|
|||
|
||||
Configure IP addresses of the device and the host. Then:
|
||||
|
||||
On the device: ping <host's IP>
|
||||
On the host: ping <device's IP>
|
||||
On the device::
|
||||
|
||||
ping <host's IP>
|
||||
|
||||
On the host::
|
||||
|
||||
ping <device's IP>
|
||||
|
||||
5. FFS function
|
||||
===============
|
||||
|
@ -172,6 +209,7 @@ Testing the FFS function
|
|||
------------------------
|
||||
|
||||
On the device: start the function's userspace daemon, enable the gadget
|
||||
|
||||
On the host: use the USB function provided by the device
|
||||
|
||||
6. HID function
|
||||
|
@ -185,14 +223,16 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "hid".
|
||||
The HID function provides these attributes in its function directory:
|
||||
|
||||
protocol - HID protocol to use
|
||||
report_desc - data to be used in HID reports, except data
|
||||
=============== ===========================================
|
||||
protocol HID protocol to use
|
||||
report_desc data to be used in HID reports, except data
|
||||
passed with /dev/hidg<X>
|
||||
report_length - HID report length
|
||||
subclass - HID subclass to use
|
||||
report_length HID report length
|
||||
subclass HID subclass to use
|
||||
=============== ===========================================
|
||||
|
||||
For a keyboard the protocol and the subclass are 1, the report_length is 8,
|
||||
while the report_desc is:
|
||||
while the report_desc is::
|
||||
|
||||
$ hd my_report_desc
|
||||
00000000 05 01 09 06 a1 01 05 07 19 e0 29 e7 15 00 25 01 |..........)...%.|
|
||||
|
@ -201,7 +241,7 @@ $ hd my_report_desc
|
|||
00000030 75 08 15 00 25 65 05 07 19 00 29 65 81 00 c0 |u...%e....)e...|
|
||||
0000003f
|
||||
|
||||
Such a sequence of bytes can be stored to the attribute with echo:
|
||||
Such a sequence of bytes can be stored to the attribute with echo::
|
||||
|
||||
$ echo -ne \\x05\\x01\\x09\\x06\\xa1.....
|
||||
|
||||
|
@ -209,15 +249,17 @@ Testing the HID function
|
|||
------------------------
|
||||
|
||||
Device:
|
||||
|
||||
- create the gadget
|
||||
- connect the gadget to a host, preferably not the one used
|
||||
to control the gadget
|
||||
- run a program which writes to /dev/hidg<N>, e.g.
|
||||
a userspace program found in Documentation/usb/gadget_hid.txt:
|
||||
a userspace program found in Documentation/usb/gadget_hid.txt::
|
||||
|
||||
$ ./hid_gadget_test /dev/hidg0 keyboard
|
||||
|
||||
Host:
|
||||
|
||||
- observe the keystrokes from the gadget
|
||||
|
||||
7. LOOPBACK function
|
||||
|
@ -231,13 +273,16 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "Loopback".
|
||||
The LOOPBACK function provides these attributes in its function directory:
|
||||
|
||||
qlen - depth of loopback queue
|
||||
bulk_buflen - buffer length
|
||||
=============== =======================
|
||||
qlen depth of loopback queue
|
||||
bulk_buflen buffer length
|
||||
=============== =======================
|
||||
|
||||
Testing the LOOPBACK function
|
||||
-----------------------------
|
||||
|
||||
device: run the gadget
|
||||
|
||||
host: test-usb (tools/usb/testusb.c)
|
||||
|
||||
8. MASS STORAGE function
|
||||
|
@ -252,16 +297,18 @@ The function name to use when creating the function directory is "mass_storage".
|
|||
The MASS STORAGE function provides these attributes in its directory:
|
||||
files:
|
||||
|
||||
stall - Set to permit function to halt bulk endpoints.
|
||||
=============== ==============================================
|
||||
stall Set to permit function to halt bulk endpoints.
|
||||
Disabled on some USB devices known not to work
|
||||
correctly. You should set it to true.
|
||||
num_buffers - Number of pipeline buffers. Valid numbers
|
||||
num_buffers Number of pipeline buffers. Valid numbers
|
||||
are 2..4. Available only if
|
||||
CONFIG_USB_GADGET_DEBUG_FILES is set.
|
||||
=============== ==============================================
|
||||
|
||||
and a default lun.0 directory corresponding to SCSI LUN #0.
|
||||
|
||||
A new lun can be added with mkdir:
|
||||
A new lun can be added with mkdir::
|
||||
|
||||
$ mkdir functions/mass_storage.0/partition.5
|
||||
|
||||
|
@ -273,18 +320,20 @@ although it is not mandatory.
|
|||
|
||||
In each lun directory there are the following attribute files:
|
||||
|
||||
file - The path to the backing file for the LUN.
|
||||
=============== ==============================================
|
||||
file The path to the backing file for the LUN.
|
||||
Required if LUN is not marked as removable.
|
||||
ro - Flag specifying access to the LUN shall be
|
||||
ro Flag specifying access to the LUN shall be
|
||||
read-only. This is implied if CD-ROM emulation
|
||||
is enabled as well as when it was impossible
|
||||
to open "filename" in R/W mode.
|
||||
removable - Flag specifying that LUN shall be indicated as
|
||||
removable Flag specifying that LUN shall be indicated as
|
||||
being removable.
|
||||
cdrom - Flag specifying that LUN shall be reported as
|
||||
cdrom Flag specifying that LUN shall be reported as
|
||||
being a CD-ROM.
|
||||
nofua - Flag specifying that FUA flag
|
||||
nofua Flag specifying that FUA flag
|
||||
in SCSI WRITE(10,12)
|
||||
=============== ==============================================
|
||||
|
||||
Testing the MASS STORAGE function
|
||||
---------------------------------
|
||||
|
@ -304,12 +353,14 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "midi".
|
||||
The MIDI function provides these attributes in its function directory:
|
||||
|
||||
buflen - MIDI buffer length
|
||||
id - ID string for the USB MIDI adapter
|
||||
in_ports - number of MIDI input ports
|
||||
index - index value for the USB MIDI adapter
|
||||
out_ports - number of MIDI output ports
|
||||
qlen - USB read request queue length
|
||||
=============== ====================================
|
||||
buflen MIDI buffer length
|
||||
id ID string for the USB MIDI adapter
|
||||
in_ports number of MIDI input ports
|
||||
index index value for the USB MIDI adapter
|
||||
out_ports number of MIDI output ports
|
||||
qlen USB read request queue length
|
||||
=============== ====================================
|
||||
|
||||
Testing the MIDI function
|
||||
-------------------------
|
||||
|
@ -317,8 +368,9 @@ Testing the MIDI function
|
|||
There are two cases: playing a mid from the gadget to
|
||||
the host and playing a mid from the host to the gadget.
|
||||
|
||||
1) Playing a mid from the gadget to the host
|
||||
host)
|
||||
1) Playing a mid from the gadget to the host:
|
||||
|
||||
host::
|
||||
|
||||
$ arecordmidi -l
|
||||
Port Client name Port name
|
||||
|
@ -326,7 +378,7 @@ $ arecordmidi -l
|
|||
24:0 MIDI Gadget MIDI Gadget MIDI 1
|
||||
$ arecordmidi -p 24:0 from_gadget.mid
|
||||
|
||||
gadget)
|
||||
gadget::
|
||||
|
||||
$ aplaymidi -l
|
||||
Port Client name Port name
|
||||
|
@ -335,7 +387,8 @@ $ aplaymidi -l
|
|||
$ aplaymidi -p 20:0 to_host.mid
|
||||
|
||||
2) Playing a mid from the host to the gadget
|
||||
gadget)
|
||||
|
||||
gadget::
|
||||
|
||||
$ arecordmidi -l
|
||||
Port Client name Port name
|
||||
|
@ -343,7 +396,7 @@ $ arecordmidi -l
|
|||
|
||||
$ arecordmidi -p 20:0 from_host.mid
|
||||
|
||||
host)
|
||||
host::
|
||||
|
||||
$ aplaymidi -l
|
||||
Port Client name Port name
|
||||
|
@ -353,9 +406,10 @@ $ aplaymidi -l
|
|||
$ aplaymidi -p24:0 to_gadget.mid
|
||||
|
||||
The from_gadget.mid should sound identical to the to_host.mid.
|
||||
|
||||
The from_host.id should sound identical to the to_gadget.mid.
|
||||
|
||||
MIDI files can be played to speakers/headphones with e.g. timidity installed
|
||||
MIDI files can be played to speakers/headphones with e.g. timidity installed::
|
||||
|
||||
$ aplaymidi -l
|
||||
Port Client name Port name
|
||||
|
@ -368,7 +422,7 @@ $ aplaymidi -l
|
|||
|
||||
$ aplaymidi -p 128:0 file.mid
|
||||
|
||||
MIDI ports can be logically connected using the aconnect utility, e.g.:
|
||||
MIDI ports can be logically connected using the aconnect utility, e.g.::
|
||||
|
||||
$ aconnect 24:0 128:0 # try it on the host
|
||||
|
||||
|
@ -387,13 +441,15 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "ncm".
|
||||
The NCM function provides these attributes in its function directory:
|
||||
|
||||
ifname - network device interface name associated with this
|
||||
=============== ==================================================
|
||||
ifname network device interface name associated with this
|
||||
function instance
|
||||
qmult - queue length multiplier for high and super speed
|
||||
host_addr - MAC address of host's end of this
|
||||
qmult queue length multiplier for high and super speed
|
||||
host_addr MAC address of host's end of this
|
||||
Ethernet over USB link
|
||||
dev_addr - MAC address of device's end of this
|
||||
dev_addr MAC address of device's end of this
|
||||
Ethernet over USB link
|
||||
=============== ==================================================
|
||||
|
||||
and after creating the functions/ncm.<instance name> they contain default
|
||||
values: qmult is 5, dev_addr and host_addr are randomly selected.
|
||||
|
@ -406,8 +462,13 @@ Testing the NCM function
|
|||
|
||||
Configure IP addresses of the device and the host. Then:
|
||||
|
||||
On the device: ping <host's IP>
|
||||
On the host: ping <device's IP>
|
||||
On the device::
|
||||
|
||||
ping <host's IP>
|
||||
|
||||
On the host::
|
||||
|
||||
ping <device's IP>
|
||||
|
||||
11. OBEX function
|
||||
=================
|
||||
|
@ -429,8 +490,13 @@ There can be at most 4 ACM/generic serial/OBEX ports in the system.
|
|||
Testing the OBEX function
|
||||
-------------------------
|
||||
|
||||
On device: seriald -f /dev/ttyGS<Y> -s 1024
|
||||
On host: serialc -v <vendorID> -p <productID> -i<interface#> -a1 -s1024 \
|
||||
On device::
|
||||
|
||||
seriald -f /dev/ttyGS<Y> -s 1024
|
||||
|
||||
On host::
|
||||
|
||||
serialc -v <vendorID> -p <productID> -i<interface#> -a1 -s1024 \
|
||||
-t<out endpoint addr> -r<in endpoint addr>
|
||||
|
||||
where seriald and serialc are Felipe's utilities found here:
|
||||
|
@ -448,8 +514,10 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "phonet".
|
||||
The PHONET function provides just one attribute in its function directory:
|
||||
|
||||
ifname - network device interface name associated with this
|
||||
=============== ==================================================
|
||||
ifname network device interface name associated with this
|
||||
function instance
|
||||
=============== ==================================================
|
||||
|
||||
Testing the PHONET function
|
||||
---------------------------
|
||||
|
@ -464,39 +532,39 @@ These tools are required:
|
|||
|
||||
git://git.gitorious.org/meego-cellular/phonet-utils.git
|
||||
|
||||
On the host:
|
||||
On the host::
|
||||
|
||||
$ ./phonet -a 0x10 -i usbpn0
|
||||
$ ./pnroute add 0x6c usbpn0
|
||||
$./pnroute add 0x10 usbpn0
|
||||
$ ifconfig usbpn0 up
|
||||
|
||||
On the device:
|
||||
On the device::
|
||||
|
||||
$ ./phonet -a 0x6c -i upnlink0
|
||||
$ ./pnroute add 0x10 upnlink0
|
||||
$ ifconfig upnlink0 up
|
||||
|
||||
Then a test program can be used:
|
||||
Then a test program can be used::
|
||||
|
||||
http://www.spinics.net/lists/linux-usb/msg85690.html
|
||||
|
||||
On the device:
|
||||
On the device::
|
||||
|
||||
$ ./pnxmit -a 0x6c -r
|
||||
|
||||
On the host:
|
||||
On the host::
|
||||
|
||||
$ ./pnxmit -a 0x10 -s 0x6c
|
||||
|
||||
As a result some data should be sent from host to device.
|
||||
Then the other way round:
|
||||
|
||||
On the host:
|
||||
On the host::
|
||||
|
||||
$ ./pnxmit -a 0x10 -r
|
||||
|
||||
On the device:
|
||||
On the device::
|
||||
|
||||
$ ./pnxmit -a 0x6c -s 0x10
|
||||
|
||||
|
@ -511,13 +579,15 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "rndis".
|
||||
The RNDIS function provides these attributes in its function directory:
|
||||
|
||||
ifname - network device interface name associated with this
|
||||
=============== ==================================================
|
||||
ifname network device interface name associated with this
|
||||
function instance
|
||||
qmult - queue length multiplier for high and super speed
|
||||
host_addr - MAC address of host's end of this
|
||||
qmult queue length multiplier for high and super speed
|
||||
host_addr MAC address of host's end of this
|
||||
Ethernet over USB link
|
||||
dev_addr - MAC address of device's end of this
|
||||
dev_addr MAC address of device's end of this
|
||||
Ethernet over USB link
|
||||
=============== ==================================================
|
||||
|
||||
and after creating the functions/rndis.<instance name> they contain default
|
||||
values: qmult is 5, dev_addr and host_addr are randomly selected.
|
||||
|
@ -530,8 +600,13 @@ Testing the RNDIS function
|
|||
|
||||
Configure IP addresses of the device and the host. Then:
|
||||
|
||||
On the device: ping <host's IP>
|
||||
On the host: ping <device's IP>
|
||||
On the device::
|
||||
|
||||
ping <host's IP>
|
||||
|
||||
On the host::
|
||||
|
||||
ping <device's IP>
|
||||
|
||||
14. SERIAL function
|
||||
===================
|
||||
|
@ -553,15 +628,28 @@ There can be at most 4 ACM/generic serial/OBEX ports in the system.
|
|||
Testing the SERIAL function
|
||||
---------------------------
|
||||
|
||||
On host: insmod usbserial
|
||||
On host::
|
||||
|
||||
insmod usbserial
|
||||
echo VID PID >/sys/bus/usb-serial/drivers/generic/new_id
|
||||
On host: cat > /dev/ttyUSB<X>
|
||||
On target: cat /dev/ttyGS<Y>
|
||||
|
||||
On host::
|
||||
|
||||
cat > /dev/ttyUSB<X>
|
||||
|
||||
On target::
|
||||
|
||||
cat /dev/ttyGS<Y>
|
||||
|
||||
then the other way round
|
||||
|
||||
On target: cat > /dev/ttyGS<Y>
|
||||
On host: cat /dev/ttyUSB<X>
|
||||
On target::
|
||||
|
||||
cat > /dev/ttyGS<Y>
|
||||
|
||||
On host::
|
||||
|
||||
cat /dev/ttyUSB<X>
|
||||
|
||||
15. SOURCESINK function
|
||||
=======================
|
||||
|
@ -574,24 +662,27 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "SourceSink".
|
||||
The SOURCESINK function provides these attributes in its function directory:
|
||||
|
||||
pattern - 0 (all zeros), 1 (mod63), 2 (none)
|
||||
isoc_interval - 1..16
|
||||
isoc_maxpacket - 0 - 1023 (fs), 0 - 1024 (hs/ss)
|
||||
isoc_mult - 0..2 (hs/ss only)
|
||||
isoc_maxburst - 0..15 (ss only)
|
||||
bulk_buflen - buffer length
|
||||
bulk_qlen - depth of queue for bulk
|
||||
iso_qlen - depth of queue for iso
|
||||
=============== ==================================
|
||||
pattern 0 (all zeros), 1 (mod63), 2 (none)
|
||||
isoc_interval 1..16
|
||||
isoc_maxpacket 0 - 1023 (fs), 0 - 1024 (hs/ss)
|
||||
isoc_mult 0..2 (hs/ss only)
|
||||
isoc_maxburst 0..15 (ss only)
|
||||
bulk_buflen buffer length
|
||||
bulk_qlen depth of queue for bulk
|
||||
iso_qlen depth of queue for iso
|
||||
=============== ==================================
|
||||
|
||||
Testing the SOURCESINK function
|
||||
-------------------------------
|
||||
|
||||
device: run the gadget
|
||||
|
||||
host: test-usb (tools/usb/testusb.c)
|
||||
|
||||
|
||||
16. UAC1 function (legacy implementation)
|
||||
=================
|
||||
=========================================
|
||||
|
||||
The function is provided by usb_f_uac1_legacy.ko module.
|
||||
|
||||
|
@ -602,12 +693,14 @@ The function name to use when creating the function directory
|
|||
is "uac1_legacy".
|
||||
The uac1 function provides these attributes in its function directory:
|
||||
|
||||
audio_buf_size - audio buffer size
|
||||
fn_cap - capture pcm device file name
|
||||
fn_cntl - control device file name
|
||||
fn_play - playback pcm device file name
|
||||
req_buf_size - ISO OUT endpoint request buffer size
|
||||
req_count - ISO OUT endpoint request count
|
||||
=============== ====================================
|
||||
audio_buf_size audio buffer size
|
||||
fn_cap capture pcm device file name
|
||||
fn_cntl control device file name
|
||||
fn_play playback pcm device file name
|
||||
req_buf_size ISO OUT endpoint request buffer size
|
||||
req_count ISO OUT endpoint request count
|
||||
=============== ====================================
|
||||
|
||||
The attributes have sane default values.
|
||||
|
||||
|
@ -615,7 +708,10 @@ Testing the UAC1 function
|
|||
-------------------------
|
||||
|
||||
device: run the gadget
|
||||
host: aplay -l # should list our USB Audio Gadget
|
||||
|
||||
host::
|
||||
|
||||
aplay -l # should list our USB Audio Gadget
|
||||
|
||||
17. UAC2 function
|
||||
=================
|
||||
|
@ -628,14 +724,16 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "uac2".
|
||||
The uac2 function provides these attributes in its function directory:
|
||||
|
||||
c_chmask - capture channel mask
|
||||
c_srate - capture sampling rate
|
||||
c_ssize - capture sample size (bytes)
|
||||
p_chmask - playback channel mask
|
||||
p_srate - playback sampling rate
|
||||
p_ssize - playback sample size (bytes)
|
||||
req_number - the number of pre-allocated request for both capture
|
||||
=============== ====================================================
|
||||
c_chmask capture channel mask
|
||||
c_srate capture sampling rate
|
||||
c_ssize capture sample size (bytes)
|
||||
p_chmask playback channel mask
|
||||
p_srate playback sampling rate
|
||||
p_ssize playback sample size (bytes)
|
||||
req_number the number of pre-allocated request for both capture
|
||||
and playback
|
||||
=============== ====================================================
|
||||
|
||||
The attributes have sane default values.
|
||||
|
||||
|
@ -648,11 +746,11 @@ host: aplay -l # should list our USB Audio Gadget
|
|||
This function does not require real hardware support, it just
|
||||
sends a stream of audio data to/from the host. In order to
|
||||
actually hear something at the device side, a command similar
|
||||
to this must be used at the device side:
|
||||
to this must be used at the device side::
|
||||
|
||||
$ arecord -f dat -t wav -D hw:2,0 | aplay -D hw:0,0 &
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ arecord -f dat -t wav -D hw:CARD=UAC2Gadget,DEV=0 | \
|
||||
aplay -D default:CARD=OdroidU3
|
||||
|
@ -668,29 +766,33 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "uvc".
|
||||
The uvc function provides these attributes in its function directory:
|
||||
|
||||
streaming_interval - interval for polling endpoint for data transfers
|
||||
streaming_maxburst - bMaxBurst for super speed companion descriptor
|
||||
streaming_maxpacket - maximum packet size this endpoint is capable of
|
||||
=================== ================================================
|
||||
streaming_interval interval for polling endpoint for data transfers
|
||||
streaming_maxburst bMaxBurst for super speed companion descriptor
|
||||
streaming_maxpacket maximum packet size this endpoint is capable of
|
||||
sending or receiving when this configuration is
|
||||
selected
|
||||
=================== ================================================
|
||||
|
||||
There are also "control" and "streaming" subdirectories, each of which contain
|
||||
a number of their subdirectories. There are some sane defaults provided, but
|
||||
the user must provide the following:
|
||||
|
||||
control header - create in control/header, link from control/class/fs
|
||||
================== ====================================================
|
||||
control header create in control/header, link from control/class/fs
|
||||
and/or control/class/ss
|
||||
streaming header - create in streaming/header, link from
|
||||
streaming header create in streaming/header, link from
|
||||
streaming/class/fs and/or streaming/class/hs and/or
|
||||
streaming/class/ss
|
||||
format description - create in streaming/mjpeg and/or
|
||||
format description create in streaming/mjpeg and/or
|
||||
streaming/uncompressed
|
||||
frame description - create in streaming/mjpeg/<format> and/or in
|
||||
frame description create in streaming/mjpeg/<format> and/or in
|
||||
streaming/uncompressed/<format>
|
||||
================== ====================================================
|
||||
|
||||
Each frame description contains frame interval specification, and each
|
||||
such specification consists of a number of lines with an inverval value
|
||||
in each line. The rules stated above are best illustrated with an example:
|
||||
in each line. The rules stated above are best illustrated with an example::
|
||||
|
||||
# mkdir functions/uvc.usb0/control/header/h
|
||||
# cd functions/uvc.usb0/control/
|
||||
|
@ -717,7 +819,7 @@ EOF
|
|||
Testing the UVC function
|
||||
------------------------
|
||||
|
||||
device: run the gadget, modprobe vivid
|
||||
device: run the gadget, modprobe vivid::
|
||||
|
||||
# uvc-gadget -u /dev/video<uvc video node #> -v /dev/video<vivid video node #>
|
||||
|
||||
|
@ -725,9 +827,12 @@ where uvc-gadget is this program:
|
|||
http://git.ideasonboard.org/uvc-gadget.git
|
||||
|
||||
with these patches:
|
||||
|
||||
http://www.spinics.net/lists/linux-usb/msg99220.html
|
||||
|
||||
host: luvcview -f yuv
|
||||
host::
|
||||
|
||||
luvcview -f yuv
|
||||
|
||||
19. PRINTER function
|
||||
====================
|
||||
|
@ -740,15 +845,18 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "printer".
|
||||
The printer function provides these attributes in its function directory:
|
||||
|
||||
pnp_string - Data to be passed to the host in pnp string
|
||||
q_len - Number of requests per endpoint
|
||||
========== ===========================================
|
||||
pnp_string Data to be passed to the host in pnp string
|
||||
q_len Number of requests per endpoint
|
||||
========== ===========================================
|
||||
|
||||
Testing the PRINTER function
|
||||
----------------------------
|
||||
|
||||
The most basic testing:
|
||||
|
||||
device: run the gadget
|
||||
device: run the gadget::
|
||||
|
||||
# ls -l /devices/virtual/usb_printer_gadget/
|
||||
|
||||
should show g_printer<number>.
|
||||
|
@ -761,15 +869,20 @@ If udev is active, then e.g. /dev/usb/lp0 should appear.
|
|||
|
||||
host->device transmission:
|
||||
|
||||
device:
|
||||
device::
|
||||
|
||||
# cat /dev/g_printer<number>
|
||||
host:
|
||||
|
||||
host::
|
||||
|
||||
# cat > /dev/usb/lp0
|
||||
|
||||
device->host transmission:
|
||||
device->host transmission::
|
||||
|
||||
# cat > /dev/g_printer<number>
|
||||
host:
|
||||
|
||||
host::
|
||||
|
||||
# cat /dev/usb/lp0
|
||||
|
||||
More advanced testing can be done with the prn_example
|
||||
|
@ -777,7 +890,7 @@ described in Documentation/usb/gadget_printer.txt.
|
|||
|
||||
|
||||
20. UAC1 function (virtual ALSA card, using u_audio API)
|
||||
=================
|
||||
========================================================
|
||||
|
||||
The function is provided by usb_f_uac1.ko module.
|
||||
It will create a virtual ALSA card and the audio streams are simply
|
||||
|
@ -789,14 +902,16 @@ Function-specific configfs interface
|
|||
The function name to use when creating the function directory is "uac1".
|
||||
The uac1 function provides these attributes in its function directory:
|
||||
|
||||
c_chmask - capture channel mask
|
||||
c_srate - capture sampling rate
|
||||
c_ssize - capture sample size (bytes)
|
||||
p_chmask - playback channel mask
|
||||
p_srate - playback sampling rate
|
||||
p_ssize - playback sample size (bytes)
|
||||
req_number - the number of pre-allocated request for both capture
|
||||
========== ====================================================
|
||||
c_chmask capture channel mask
|
||||
c_srate capture sampling rate
|
||||
c_ssize capture sample size (bytes)
|
||||
p_chmask playback channel mask
|
||||
p_srate playback sampling rate
|
||||
p_ssize playback sample size (bytes)
|
||||
req_number the number of pre-allocated request for both capture
|
||||
and playback
|
||||
========== ====================================================
|
||||
|
||||
The attributes have sane default values.
|
||||
|
||||
|
@ -809,11 +924,11 @@ host: aplay -l # should list our USB Audio Gadget
|
|||
This function does not require real hardware support, it just
|
||||
sends a stream of audio data to/from the host. In order to
|
||||
actually hear something at the device side, a command similar
|
||||
to this must be used at the device side:
|
||||
to this must be used at the device side::
|
||||
|
||||
$ arecord -f dat -t wav -D hw:2,0 | aplay -D hw:0,0 &
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ arecord -f dat -t wav -D hw:CARD=UAC1Gadget,DEV=0 | \
|
||||
aplay -D default:CARD=OdroidU3
|
||||
|
|
|
@ -1,8 +1,6 @@
|
|||
|
||||
|
||||
|
||||
|
||||
============================================
|
||||
Linux USB gadget configured through configfs
|
||||
============================================
|
||||
|
||||
|
||||
25th April 2013
|
||||
|
@ -26,7 +24,7 @@ Linux provides a number of functions for gadgets to use.
|
|||
Creating a gadget means deciding what configurations there will be
|
||||
and which functions each configuration will provide.
|
||||
|
||||
Configfs (please see Documentation/filesystems/configfs/*) lends itself nicely
|
||||
Configfs (please see `Documentation/filesystems/configfs/*`) lends itself nicely
|
||||
for the purpose of telling the kernel about the above mentioned decision.
|
||||
This document is about how to do it.
|
||||
|
||||
|
@ -51,6 +49,8 @@ Usage
|
|||
made available through configfs can be seen here:
|
||||
http://www.spinics.net/lists/linux-usb/msg76388.html)
|
||||
|
||||
::
|
||||
|
||||
$ modprobe libcomposite
|
||||
$ mount none $CONFIGFS_HOME -t configfs
|
||||
|
||||
|
@ -59,11 +59,11 @@ where CONFIGFS_HOME is the mount point for configfs
|
|||
1. Creating the gadgets
|
||||
-----------------------
|
||||
|
||||
For each gadget to be created its corresponding directory must be created:
|
||||
For each gadget to be created its corresponding directory must be created::
|
||||
|
||||
$ mkdir $CONFIGFS_HOME/usb_gadget/<gadget name>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ mkdir $CONFIGFS_HOME/usb_gadget/g1
|
||||
|
||||
|
@ -73,18 +73,18 @@ $ mkdir $CONFIGFS_HOME/usb_gadget/g1
|
|||
|
||||
$ cd $CONFIGFS_HOME/usb_gadget/g1
|
||||
|
||||
Each gadget needs to have its vendor id <VID> and product id <PID> specified:
|
||||
Each gadget needs to have its vendor id <VID> and product id <PID> specified::
|
||||
|
||||
$ echo <VID> > idVendor
|
||||
$ echo <PID> > idProduct
|
||||
|
||||
A gadget also needs its serial number, manufacturer and product strings.
|
||||
In order to have a place to store them, a strings subdirectory must be created
|
||||
for each language, e.g.:
|
||||
for each language, e.g.::
|
||||
|
||||
$ mkdir strings/0x409
|
||||
|
||||
Then the strings can be specified:
|
||||
Then the strings can be specified::
|
||||
|
||||
$ echo <serial number> > strings/0x409/serialnumber
|
||||
$ echo <manufacturer> > strings/0x409/manufacturer
|
||||
|
@ -99,7 +99,7 @@ directories must be created:
|
|||
$ mkdir configs/<name>.<number>
|
||||
|
||||
where <name> can be any string which is legal in a filesystem and the
|
||||
<number> is the configuration's number, e.g.:
|
||||
<number> is the configuration's number, e.g.::
|
||||
|
||||
$ mkdir configs/c.1
|
||||
|
||||
|
@ -108,15 +108,15 @@ $ mkdir configs/c.1
|
|||
...
|
||||
|
||||
Each configuration also needs its strings, so a subdirectory must be created
|
||||
for each language, e.g.:
|
||||
for each language, e.g.::
|
||||
|
||||
$ mkdir configs/c.1/strings/0x409
|
||||
|
||||
Then the configuration string can be specified:
|
||||
Then the configuration string can be specified::
|
||||
|
||||
$ echo <configuration> > configs/c.1/strings/0x409/configuration
|
||||
|
||||
Some attributes can also be set for a configuration, e.g.:
|
||||
Some attributes can also be set for a configuration, e.g.::
|
||||
|
||||
$ echo 120 > configs/c.1/MaxPower
|
||||
|
||||
|
@ -124,12 +124,12 @@ $ echo 120 > configs/c.1/MaxPower
|
|||
-------------------------
|
||||
|
||||
The gadget will provide some functions, for each function its corresponding
|
||||
directory must be created:
|
||||
directory must be created::
|
||||
|
||||
$ mkdir functions/<name>.<instance name>
|
||||
|
||||
where <name> corresponds to one of allowed function names and instance name
|
||||
is an arbitrary string allowed in a filesystem, e.g.:
|
||||
is an arbitrary string allowed in a filesystem, e.g.::
|
||||
|
||||
$ mkdir functions/ncm.usb0 # usb_f_ncm.ko gets loaded with request_module()
|
||||
|
||||
|
@ -149,11 +149,11 @@ At this moment a number of gadgets is created, each of which has a number of
|
|||
configurations specified and a number of functions available. What remains
|
||||
is specifying which function is available in which configuration (the same
|
||||
function can be used in multiple configurations). This is achieved with
|
||||
creating symbolic links:
|
||||
creating symbolic links::
|
||||
|
||||
$ ln -s functions/<name>.<instance name> configs/<name>.<number>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ ln -s functions/ncm.usb0 configs/c.1
|
||||
|
||||
|
@ -167,7 +167,7 @@ $ ln -s functions/ncm.usb0 configs/c.1
|
|||
All the above steps serve the purpose of composing the gadget of
|
||||
configurations and functions.
|
||||
|
||||
An example directory structure might look like this:
|
||||
An example directory structure might look like this::
|
||||
|
||||
.
|
||||
./strings
|
||||
|
@ -201,12 +201,14 @@ An example directory structure might look like this:
|
|||
|
||||
|
||||
Such a gadget must be finally enabled so that the USB host can enumerate it.
|
||||
In order to enable the gadget it must be bound to a UDC (USB Device Controller).
|
||||
|
||||
In order to enable the gadget it must be bound to a UDC (USB Device
|
||||
Controller)::
|
||||
|
||||
$ echo <udc name> > UDC
|
||||
|
||||
where <udc name> is one of those found in /sys/class/udc/*
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ echo s3c-hsotg > UDC
|
||||
|
||||
|
@ -214,17 +216,19 @@ $ echo s3c-hsotg > UDC
|
|||
6. Disabling the gadget
|
||||
-----------------------
|
||||
|
||||
::
|
||||
|
||||
$ echo "" > UDC
|
||||
|
||||
7. Cleaning up
|
||||
--------------
|
||||
|
||||
Remove functions from configurations:
|
||||
Remove functions from configurations::
|
||||
|
||||
$ rm configs/<config name>.<number>/<function>
|
||||
|
||||
where <config name>.<number> specify the configuration and <function> is
|
||||
a symlink to a function being removed from the configuration, e.g.:
|
||||
a symlink to a function being removed from the configuration, e.g.::
|
||||
|
||||
$ rm configs/c.1/ncm.usb0
|
||||
|
||||
|
@ -232,11 +236,11 @@ $ rm configs/c.1/ncm.usb0
|
|||
...
|
||||
...
|
||||
|
||||
Remove strings directories in configurations
|
||||
Remove strings directories in configurations:
|
||||
|
||||
$ rmdir configs/<config name>.<number>/strings/<lang>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ rmdir configs/c.1/strings/0x409
|
||||
|
||||
|
@ -244,11 +248,11 @@ $ rmdir configs/c.1/strings/0x409
|
|||
...
|
||||
...
|
||||
|
||||
and remove the configurations
|
||||
and remove the configurations::
|
||||
|
||||
$ rmdir configs/<config name>.<number>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
rmdir configs/c.1
|
||||
|
||||
|
@ -256,11 +260,11 @@ rmdir configs/c.1
|
|||
...
|
||||
...
|
||||
|
||||
Remove functions (function modules are not unloaded, though)
|
||||
Remove functions (function modules are not unloaded, though):
|
||||
|
||||
$ rmdir functions/<name>.<instance name>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ rmdir functions/ncm.usb0
|
||||
|
||||
|
@ -268,20 +272,20 @@ $ rmdir functions/ncm.usb0
|
|||
...
|
||||
...
|
||||
|
||||
Remove strings directories in the gadget
|
||||
Remove strings directories in the gadget::
|
||||
|
||||
$ rmdir strings/<lang>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ rmdir strings/0x409
|
||||
|
||||
and finally remove the gadget:
|
||||
and finally remove the gadget::
|
||||
|
||||
$ cd ..
|
||||
$ rmdir <gadget name>
|
||||
|
||||
e.g.:
|
||||
e.g.::
|
||||
|
||||
$ rmdir g1
|
||||
|
||||
|
@ -305,7 +309,7 @@ configured elements. However, they are embedded in usage-specific
|
|||
larger structures. In the picture below there is a "cs" which contains
|
||||
a config_item and an "sa" which contains a configfs_attribute.
|
||||
|
||||
The filesystem view would be like this:
|
||||
The filesystem view would be like this::
|
||||
|
||||
./
|
||||
./cs (directory)
|
||||
|
@ -326,6 +330,8 @@ buffer), while the "store" is for modifying the file's contents (copy data
|
|||
from the buffer to the cs), but it is up to the implementer of the
|
||||
two functions to decide what they actually do.
|
||||
|
||||
::
|
||||
|
||||
typedef struct configured_structure cs;
|
||||
typedef struct specific_attribute sa;
|
||||
|
||||
|
@ -348,7 +354,7 @@ the directories in general can be named at will. A group can have
|
|||
a number of its default sub-groups created automatically.
|
||||
|
||||
For more information on configfs please see
|
||||
Documentation/filesystems/configfs/*.
|
||||
`Documentation/filesystems/configfs/*`.
|
||||
|
||||
The concepts described above translate to USB gadgets like this:
|
||||
|
||||
|
|
|
@ -1,7 +1,9 @@
|
|||
|
||||
===========================
|
||||
Linux USB HID gadget driver
|
||||
===========================
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
The HID Gadget driver provides emulation of USB Human Interface
|
||||
Devices (HID). The basic HID handling is done in the kernel,
|
||||
|
@ -12,11 +14,12 @@ Introduction
|
|||
http://www.usb.org/developers/hidpage/
|
||||
|
||||
Configuration
|
||||
=============
|
||||
|
||||
g_hid is a platform driver, so to use it you need to add
|
||||
struct platform_device(s) to your platform code defining the
|
||||
HID function descriptors you want to use - E.G. something
|
||||
like:
|
||||
like::
|
||||
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/usb/g_hid.h>
|
||||
|
@ -75,6 +78,7 @@ static struct platform_device my_hid = {
|
|||
the amount of interrupt endpoints your gadget driver supports.
|
||||
|
||||
Configuration with configfs
|
||||
===========================
|
||||
|
||||
Instead of adding fake platform devices and drivers in order to pass
|
||||
some data to the kernel, if HID is a part of a gadget composed with
|
||||
|
@ -82,6 +86,7 @@ Configuration with configfs
|
|||
by writing the appropriate stream of bytes to a configfs attribute.
|
||||
|
||||
Send and receive HID reports
|
||||
============================
|
||||
|
||||
HID reports can be sent/received using read/write on the
|
||||
/dev/hidgX character devices. See below for an example program
|
||||
|
@ -89,7 +94,7 @@ Send and receive HID reports
|
|||
|
||||
hid_gadget_test is a small interactive program to test the HID
|
||||
gadget driver. To use, point it at a hidg device and set the
|
||||
device type (keyboard / mouse / joystick) - E.G.:
|
||||
device type (keyboard / mouse / joystick) - E.G.::
|
||||
|
||||
# hid_gadget_test /dev/hidg0 keyboard
|
||||
|
||||
|
@ -106,19 +111,19 @@ Send and receive HID reports
|
|||
Another interesting example is the caps lock test. Type
|
||||
--caps-lock and hit return. A report is then sent by the
|
||||
gadget and you should receive the host answer, corresponding
|
||||
to the caps lock LED status.
|
||||
to the caps lock LED status::
|
||||
|
||||
--caps-lock
|
||||
recv report:2
|
||||
|
||||
With this command:
|
||||
With this command::
|
||||
|
||||
# hid_gadget_test /dev/hidg1 mouse
|
||||
|
||||
You can test the mouse emulation. Values are two signed numbers.
|
||||
|
||||
|
||||
Sample code
|
||||
Sample code::
|
||||
|
||||
/* hid_gadget_test */
|
||||
|
||||
|
|
|
@ -1,6 +1,9 @@
|
|||
-*- org -*-
|
||||
==============================
|
||||
Multifunction Composite Gadget
|
||||
==============================
|
||||
|
||||
* Overview
|
||||
Overview
|
||||
========
|
||||
|
||||
The Multifunction Composite Gadget (or g_multi) is a composite gadget
|
||||
that makes extensive use of the composite framework to provide
|
||||
|
@ -17,13 +20,15 @@ have two configurations -- one with RNDIS and another with CDC ECM[3].
|
|||
Please note that if you use non-standard configuration (that is enable
|
||||
CDC ECM) you may need to change vendor and/or product ID.
|
||||
|
||||
* Host drivers
|
||||
Host drivers
|
||||
============
|
||||
|
||||
To make use of the gadget one needs to make it work on host side --
|
||||
without that there's no hope of achieving anything with the gadget.
|
||||
As one might expect, things one need to do very from system to system.
|
||||
|
||||
** Linux host drivers
|
||||
Linux host drivers
|
||||
------------------
|
||||
|
||||
Since the gadget uses standard composite framework and appears as such
|
||||
to Linux host it does not need any additional drivers on Linux host
|
||||
|
@ -34,11 +39,13 @@ This is also true for two configuration set-up with RNDIS
|
|||
configuration being the first one. Linux host will use the second
|
||||
configuration with CDC ECM which should work better under Linux.
|
||||
|
||||
** Windows host drivers
|
||||
Windows host drivers
|
||||
--------------------
|
||||
|
||||
For the gadget to work under Windows two conditions have to be met:
|
||||
|
||||
*** Detecting as composite gadget
|
||||
Detecting as composite gadget
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
First of all, Windows need to detect the gadget as an USB composite
|
||||
gadget which on its own have some conditions[4]. If they are met,
|
||||
|
@ -53,7 +60,8 @@ The only thing to worry is that the gadget has to have a single
|
|||
configuration so a dual RNDIS and CDC ECM gadget won't work unless you
|
||||
create a proper INF -- and of course, if you do submit it!
|
||||
|
||||
*** Installing drivers for each function
|
||||
Installing drivers for each function
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The other, trickier thing is making Windows install drivers for each
|
||||
individual function.
|
||||
|
@ -63,7 +71,8 @@ implementing USB Mass Storage class and selects appropriate driver.
|
|||
|
||||
Things are harder with RDNIS and CDC ACM.
|
||||
|
||||
**** RNDIS
|
||||
RNDIS
|
||||
.....
|
||||
|
||||
To make Windows select RNDIS drivers for the first function in the
|
||||
gadget, one needs to use the [[file:linux.inf]] file provided with this
|
||||
|
@ -75,11 +84,13 @@ RNDIS was not the first interface. You do not need to worry abut it
|
|||
unless you are trying to develop your own gadget in which case watch
|
||||
out for this bug.
|
||||
|
||||
**** CDC ACM
|
||||
CDC ACM
|
||||
.......
|
||||
|
||||
Similarly, [[file:linux-cdc-acm.inf]] is provided for CDC ACM.
|
||||
|
||||
**** Customising the gadget
|
||||
Customising the gadget
|
||||
......................
|
||||
|
||||
If you intend to hack the g_multi gadget be advised that rearranging
|
||||
functions will obviously change interface numbers for each of the
|
||||
|
@ -97,14 +108,16 @@ things don't work as intended before realising Windows have cached
|
|||
some drivers information (changing USB port may sometimes help plus
|
||||
you might try using USBDeview[8] to remove the phantom device).
|
||||
|
||||
**** INF testing
|
||||
INF testing
|
||||
...........
|
||||
|
||||
Provided INF files have been tested on Windows XP SP3, Windows Vista
|
||||
and Windows 7, all 32-bit versions. It should work on 64-bit versions
|
||||
as well. It most likely won't work on Windows prior to Windows XP
|
||||
SP2.
|
||||
|
||||
** Other systems
|
||||
Other systems
|
||||
-------------
|
||||
|
||||
At this moment, drivers for any other systems have not been tested.
|
||||
Knowing how MacOS is based on BSD and BSD is an Open Source it is
|
||||
|
@ -115,7 +128,8 @@ For more exotic systems I have even less to say...
|
|||
|
||||
Any testing and drivers *are* *welcome*!
|
||||
|
||||
* Authors
|
||||
Authors
|
||||
=======
|
||||
|
||||
This document has been written by Michal Nazarewicz
|
||||
([[mailto:mina86@mina86.com]]). INF files have been hacked with
|
||||
|
@ -124,7 +138,8 @@ Xiaofan Chen ([[mailto:xiaofanc@gmail.com]]) basing on the MS RNDIS
|
|||
template[9], Microchip's CDC ACM INF file and David Brownell's
|
||||
([[mailto:dbrownell@users.sourceforge.net]]) original INF files.
|
||||
|
||||
* Footnotes
|
||||
Footnotes
|
||||
=========
|
||||
|
||||
[1] Remote Network Driver Interface Specification,
|
||||
[[http://msdn.microsoft.com/en-us/library/ee484414.aspx]].
|
||||
|
|
|
@ -1,12 +1,14 @@
|
|||
|
||||
===============================
|
||||
Linux USB Printer Gadget Driver
|
||||
===============================
|
||||
|
||||
06/04/2007
|
||||
|
||||
Copyright (C) 2007 Craig W. Nadler <craig@nadler.us>
|
||||
|
||||
|
||||
|
||||
GENERAL
|
||||
General
|
||||
=======
|
||||
|
||||
This driver may be used if you are writing printer firmware using Linux as
|
||||
|
@ -29,11 +31,11 @@ user space firmware can read or write this status byte using a device file
|
|||
|
||||
|
||||
|
||||
HOWTO USE THIS DRIVER
|
||||
Howto Use This Driver
|
||||
=====================
|
||||
|
||||
To load the USB device controller driver and the printer gadget driver. The
|
||||
following example uses the Netchip 2280 USB device controller driver:
|
||||
following example uses the Netchip 2280 USB device controller driver::
|
||||
|
||||
modprobe net2280
|
||||
modprobe g_printer
|
||||
|
@ -42,39 +44,47 @@ modprobe g_printer
|
|||
The follow command line parameter can be used when loading the printer gadget
|
||||
(ex: modprobe g_printer idVendor=0x0525 idProduct=0xa4a8 ):
|
||||
|
||||
idVendor - This is the Vendor ID used in the device descriptor. The default is
|
||||
idVendor
|
||||
This is the Vendor ID used in the device descriptor. The default is
|
||||
the Netchip vendor id 0x0525. YOU MUST CHANGE TO YOUR OWN VENDOR ID
|
||||
BEFORE RELEASING A PRODUCT. If you plan to release a product and don't
|
||||
already have a Vendor ID please see www.usb.org for details on how to
|
||||
get one.
|
||||
|
||||
idProduct - This is the Product ID used in the device descriptor. The default
|
||||
idProduct
|
||||
This is the Product ID used in the device descriptor. The default
|
||||
is 0xa4a8, you should change this to an ID that's not used by any of
|
||||
your other USB products if you have any. It would be a good idea to
|
||||
start numbering your products starting with say 0x0001.
|
||||
|
||||
bcdDevice - This is the version number of your product. It would be a good idea
|
||||
bcdDevice
|
||||
This is the version number of your product. It would be a good idea
|
||||
to put your firmware version here.
|
||||
|
||||
iManufacturer - A string containing the name of the Vendor.
|
||||
iManufacturer
|
||||
A string containing the name of the Vendor.
|
||||
|
||||
iProduct - A string containing the Product Name.
|
||||
iProduct
|
||||
A string containing the Product Name.
|
||||
|
||||
iSerialNum - A string containing the Serial Number. This should be changed for
|
||||
iSerialNum
|
||||
A string containing the Serial Number. This should be changed for
|
||||
each unit of your product.
|
||||
|
||||
iPNPstring - The PNP ID string used for this printer. You will want to set
|
||||
iPNPstring
|
||||
The PNP ID string used for this printer. You will want to set
|
||||
either on the command line or hard code the PNP ID string used for
|
||||
your printer product.
|
||||
|
||||
qlen - The number of 8k buffers to use per endpoint. The default is 10, you
|
||||
qlen
|
||||
The number of 8k buffers to use per endpoint. The default is 10, you
|
||||
should tune this for your product. You may also want to tune the
|
||||
size of each buffer for your product.
|
||||
|
||||
|
||||
|
||||
|
||||
USING THE EXAMPLE CODE
|
||||
Using The Example Code
|
||||
======================
|
||||
|
||||
This example code talks to stdout, instead of a print engine.
|
||||
|
@ -82,22 +92,23 @@ This example code talks to stdout, instead of a print engine.
|
|||
To compile the test code below:
|
||||
|
||||
1) save it to a file called prn_example.c
|
||||
2) compile the code with the follow command:
|
||||
2) compile the code with the follow command::
|
||||
|
||||
gcc prn_example.c -o prn_example
|
||||
|
||||
|
||||
|
||||
To read printer data from the host to stdout:
|
||||
To read printer data from the host to stdout::
|
||||
|
||||
# prn_example -read_data
|
||||
|
||||
|
||||
To write printer data from a file (data_file) to the host:
|
||||
To write printer data from a file (data_file) to the host::
|
||||
|
||||
# cat data_file | prn_example -write_data
|
||||
|
||||
|
||||
To get the current printer status for the gadget driver:
|
||||
To get the current printer status for the gadget driver:::
|
||||
|
||||
# prn_example -get_status
|
||||
|
||||
|
@ -107,41 +118,43 @@ To get the current printer status for the gadget driver:
|
|||
Printer OK
|
||||
|
||||
|
||||
To set printer to Selected/On-line:
|
||||
To set printer to Selected/On-line::
|
||||
|
||||
# prn_example -selected
|
||||
|
||||
|
||||
To set printer to Not Selected/Off-line:
|
||||
To set printer to Not Selected/Off-line::
|
||||
|
||||
# prn_example -not_selected
|
||||
|
||||
|
||||
To set paper status to paper out:
|
||||
To set paper status to paper out::
|
||||
|
||||
# prn_example -paper_out
|
||||
|
||||
|
||||
To set paper status to paper loaded:
|
||||
To set paper status to paper loaded::
|
||||
|
||||
# prn_example -paper_loaded
|
||||
|
||||
|
||||
To set error status to printer OK:
|
||||
To set error status to printer OK::
|
||||
|
||||
# prn_example -no_error
|
||||
|
||||
|
||||
To set error status to ERROR:
|
||||
To set error status to ERROR::
|
||||
|
||||
# prn_example -error
|
||||
|
||||
|
||||
|
||||
|
||||
EXAMPLE CODE
|
||||
Example Code
|
||||
============
|
||||
|
||||
::
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
|
|
@ -1,6 +1,9 @@
|
|||
|
||||
===============================
|
||||
Linux Gadget Serial Driver v2.0
|
||||
===============================
|
||||
|
||||
11/20/2004
|
||||
|
||||
(updated 8-May-2008 for v2.3)
|
||||
|
||||
|
||||
|
@ -56,7 +59,7 @@ hardware; for example, a PDA, an embedded Linux system, or a PC
|
|||
with a USB development card.
|
||||
|
||||
The gadget serial driver talks over USB to either a CDC ACM driver
|
||||
or a generic USB serial driver running on a host PC.
|
||||
or a generic USB serial driver running on a host PC::
|
||||
|
||||
Host
|
||||
--------------------------------------
|
||||
|
@ -112,11 +115,11 @@ configuring the kernel. Then rebuild and install the kernel or
|
|||
modules.
|
||||
|
||||
Then you must load the gadget serial driver. To load it as an
|
||||
ACM device (recommended for interoperability), do this:
|
||||
ACM device (recommended for interoperability), do this::
|
||||
|
||||
modprobe g_serial
|
||||
|
||||
To load it as a vendor specific bulk in/out device, do this:
|
||||
To load it as a vendor specific bulk in/out device, do this::
|
||||
|
||||
modprobe g_serial use_acm=0
|
||||
|
||||
|
@ -127,7 +130,7 @@ desired.
|
|||
|
||||
Your system should use mdev (from busybox) or udev to make the
|
||||
device nodes. After this gadget driver has been set up you should
|
||||
then see a /dev/ttyGS0 node:
|
||||
then see a /dev/ttyGS0 node::
|
||||
|
||||
# ls -l /dev/ttyGS0 | cat
|
||||
crw-rw---- 1 root root 253, 0 May 8 14:10 /dev/ttyGS0
|
||||
|
@ -187,11 +190,11 @@ support".
|
|||
|
||||
Once the gadget serial driver is loaded and the USB device connected
|
||||
to the Linux host with a USB cable, the host system should recognize
|
||||
the gadget serial device. For example, the command
|
||||
the gadget serial device. For example, the command::
|
||||
|
||||
cat /sys/kernel/debug/usb/devices
|
||||
|
||||
should show something like this:
|
||||
should show something like this:::
|
||||
|
||||
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 5 Spd=480 MxCh= 0
|
||||
D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
|
||||
|
@ -219,11 +222,11 @@ Serial Converter support", and for the "USB Generic Serial Driver".
|
|||
|
||||
Once the gadget serial driver is loaded and the USB device connected
|
||||
to the Linux host with a USB cable, the host system should recognize
|
||||
the gadget serial device. For example, the command
|
||||
the gadget serial device. For example, the command::
|
||||
|
||||
cat /sys/kernel/debug/usb/devices
|
||||
|
||||
should show something like this:
|
||||
should show something like this:::
|
||||
|
||||
T: Bus=01 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#= 6 Spd=480 MxCh= 0
|
||||
D: Ver= 2.00 Cls=ff(vend.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1
|
||||
|
@ -237,11 +240,11 @@ E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
|
|||
E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
|
||||
|
||||
You must load the usbserial driver and explicitly set its parameters
|
||||
to configure it to recognize the gadget serial device, like this:
|
||||
to configure it to recognize the gadget serial device, like this::
|
||||
|
||||
echo 0x0525 0xA4A6 >/sys/bus/usb-serial/drivers/generic/new_id
|
||||
|
||||
The legacy way is to use module parameters:
|
||||
The legacy way is to use module parameters::
|
||||
|
||||
modprobe usbserial vendor=0x0525 product=0xA4A6
|
||||
|
||||
|
|
|
@ -1,5 +1,6 @@
|
|||
=============================
|
||||
Infinity Usb Unlimited Readme
|
||||
-----------------------------
|
||||
=============================
|
||||
|
||||
Hi all,
|
||||
|
||||
|
@ -20,6 +21,7 @@ have his own device file(/dev/ttyUSB0,/dev/ttyUSB1,...)
|
|||
|
||||
|
||||
How to tune the reader speed?
|
||||
=============================
|
||||
|
||||
A few parameters can be used at load time
|
||||
To use parameters, just unload the module if it is
|
||||
|
@ -27,26 +29,33 @@ How to tune the reader speed ?
|
|||
In case of prebuilt module, use the command
|
||||
insmod iuu_phoenix param=value.
|
||||
|
||||
Example:
|
||||
Example::
|
||||
|
||||
modprobe iuu_phoenix clockmode=3
|
||||
|
||||
The parameters are:
|
||||
|
||||
parm: clockmode:1=3Mhz579,2=3Mhz680,3=6Mhz (int)
|
||||
parm: boost:overclock boost percent 100 to 500 (int)
|
||||
parm: cdmode:Card detect mode 0=none, 1=CD, 2=!CD, 3=DSR, 4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING (int)
|
||||
parm: xmas:xmas color enabled or not (bool)
|
||||
parm: debug:Debug enabled or not (bool)
|
||||
clockmode:
|
||||
1=3Mhz579,2=3Mhz680,3=6Mhz (int)
|
||||
boost:
|
||||
overclock boost percent 100 to 500 (int)
|
||||
cdmode:
|
||||
Card detect mode
|
||||
0=none, 1=CD, 2=!CD, 3=DSR, 4=!DSR, 5=CTS, 6=!CTS, 7=RING, 8=!RING (int)
|
||||
xmas:
|
||||
xmas color enabled or not (bool)
|
||||
debug:
|
||||
Debug enabled or not (bool)
|
||||
|
||||
- clockmode will provide 3 different base settings commonly adopted by
|
||||
different software:
|
||||
|
||||
1. 3Mhz579
|
||||
2. 3Mhz680
|
||||
3. 6Mhz
|
||||
|
||||
- boost provide a way to overclock the reader ( my favorite :-) )
|
||||
For example to have best performance than a simple clockmode=3, try this:
|
||||
For example to have best performance than a simple clockmode=3, try this::
|
||||
|
||||
modprobe boost=195
|
||||
|
||||
|
@ -66,7 +75,8 @@ How to tune the reader speed ?
|
|||
- debug will produce a lot of debugging messages...
|
||||
|
||||
|
||||
Last notes:
|
||||
Last notes
|
||||
==========
|
||||
|
||||
Don't worry about the serial settings, the serial emulation
|
||||
is an abstraction, so use any speed or parity setting will
|
||||
|
|
|
@ -1,4 +1,9 @@
|
|||
* Overview
|
||||
=========================
|
||||
Mass Storage Gadget (MSG)
|
||||
=========================
|
||||
|
||||
Overview
|
||||
========
|
||||
|
||||
Mass Storage Gadget (or MSG) acts as a USB Mass Storage device,
|
||||
appearing to the host as a disk or a CD-ROM drive. It supports
|
||||
|
@ -24,7 +29,8 @@
|
|||
(which is no longer included in Linux). It will talk only briefly
|
||||
about how to use MSF within composite gadgets.
|
||||
|
||||
* Module parameters
|
||||
Module parameters
|
||||
=================
|
||||
|
||||
The mass storage gadget accepts the following mass storage specific
|
||||
module parameters:
|
||||
|
@ -146,7 +152,8 @@
|
|||
- iProduct -- USB Product string (string)
|
||||
- iSerialNumber -- SerialNumber string (sting)
|
||||
|
||||
* sysfs entries
|
||||
sysfs entries
|
||||
=============
|
||||
|
||||
For each logical unit, the gadget creates a directory in the sysfs
|
||||
hierarchy. Inside of it the following three files are created:
|
||||
|
@ -177,7 +184,8 @@
|
|||
Other then those, as usual, the values of module parameters can be
|
||||
read from /sys/module/g_mass_storage/parameters/* files.
|
||||
|
||||
* Other gadgets using mass storage function
|
||||
Other gadgets using mass storage function
|
||||
=========================================
|
||||
|
||||
The Mass Storage Gadget uses the Mass Storage Function to handle
|
||||
mass storage protocol. As a composite function, MSF may be used by
|
||||
|
@ -193,7 +201,8 @@
|
|||
may take a look at mass_storage.c, acm_ms.c and multi.c (sorted by
|
||||
complexity).
|
||||
|
||||
* Relation to file storage gadget
|
||||
Relation to file storage gadget
|
||||
===============================
|
||||
|
||||
The Mass Storage Function and thus the Mass Storage Gadget has been
|
||||
based on the File Storage Gadget. The difference between the two is
|
||||
|
|
|
@ -1,4 +1,7 @@
|
|||
=============================
|
||||
USB 7-Segment Numeric Display
|
||||
=============================
|
||||
|
||||
Manufactured by Delcom Engineering
|
||||
|
||||
Device Information
|
||||
|
@ -13,9 +16,13 @@ Device Modes
|
|||
------------
|
||||
By default, the driver assumes the display is only 6 characters
|
||||
The mode for 6 characters is:
|
||||
|
||||
MSB 0x06; LSB 0x3f
|
||||
|
||||
For the 8 character display:
|
||||
|
||||
MSB 0x08; LSB 0xff
|
||||
|
||||
The device can accept "text" either in raw, hex, or ascii textmode.
|
||||
raw controls each segment manually,
|
||||
hex expects a value between 0-15 per character,
|
||||
|
@ -42,5 +49,3 @@ Device Operation
|
|||
To set multiple decimals points sum up each power.
|
||||
For example, to set the 0th and 3rd decimal place
|
||||
echo 1001 > /sys/bus/usb/.../decimals
|
||||
|
||||
|
||||
|
|
|
@ -1,4 +1,9 @@
|
|||
CHANGES
|
||||
================
|
||||
mtouchusb driver
|
||||
================
|
||||
|
||||
Changes
|
||||
=======
|
||||
|
||||
- 0.3 - Created based off of scanner & INSTALL from the original touchscreen
|
||||
driver on freecode (http://freecode.com/projects/3mtouchscreendriver)
|
||||
|
@ -13,7 +18,10 @@ CHANGES
|
|||
Eliminated vendor/product module params
|
||||
Performed multiple successful tests with an EXII-5010UC
|
||||
|
||||
SUPPORTED HARDWARE:
|
||||
Supported Hardware
|
||||
==================
|
||||
|
||||
::
|
||||
|
||||
All controllers have the Vendor: 0x0596 & Product: 0x0001
|
||||
|
||||
|
@ -29,7 +37,8 @@ SUPPORTED HARDWARE:
|
|||
USB Capacitive - Black Case EXII-5030UC
|
||||
USB Capacitive - No Case EXII-5050UC
|
||||
|
||||
DRIVER NOTES:
|
||||
Driver Notes
|
||||
============
|
||||
|
||||
Installation is simple, you only need to add Linux Input, Linux USB, and the
|
||||
driver to the kernel. The driver can also be optionally built as a module.
|
||||
|
@ -54,19 +63,22 @@ generic functions like calibrations, resets, and vendor information can be
|
|||
requested from the userspace (And the drivers would handle the vendor specific
|
||||
tasks).
|
||||
|
||||
TODO:
|
||||
TODO
|
||||
====
|
||||
|
||||
Implement a control urb again to handle requests to and from the device
|
||||
such as calibration, etc once/if it becomes available.
|
||||
|
||||
DISCLAIMER:
|
||||
Disclaimer
|
||||
==========
|
||||
|
||||
I am not a MicroTouch/3M employee, nor have I ever been. 3M does not support
|
||||
this driver! If you want touch drivers only supported within X, please go to:
|
||||
|
||||
http://www.3m.com/3MTouchSystems/
|
||||
|
||||
THANKS:
|
||||
Thanks
|
||||
======
|
||||
|
||||
A huge thank you to 3M Touch Systems for the EXII-5010UC controllers for
|
||||
testing!
|
||||
|
|
|
@ -1,3 +1,7 @@
|
|||
====
|
||||
OHCI
|
||||
====
|
||||
|
||||
23-Aug-2002
|
||||
|
||||
The "ohci-hcd" driver is a USB Host Controller Driver (HCD) that is derived
|
||||
|
@ -29,4 +33,3 @@ work on while the OS is getting around to the relevant IRQ processing.
|
|||
|
||||
- David Brownell
|
||||
<dbrownell@users.sourceforge.net>
|
||||
|
||||
|
|
|
@ -1,23 +1,30 @@
|
|||
============
|
||||
Diamonds Rio
|
||||
============
|
||||
|
||||
Copyright (C) 1999, 2000 Bruce Tenison
|
||||
|
||||
Portions Copyright (C) 1999, 2000 David Nelson
|
||||
|
||||
Thanks to David Nelson for guidance and the usage of the scanner.txt
|
||||
and scanner.c files to model our driver and this informative file.
|
||||
|
||||
Mar. 2, 2000
|
||||
|
||||
CHANGES
|
||||
Changes
|
||||
=======
|
||||
|
||||
- Initial Revision
|
||||
|
||||
|
||||
OVERVIEW
|
||||
Overview
|
||||
========
|
||||
|
||||
This README will address issues regarding how to configure the kernel
|
||||
to access a RIO 500 mp3 player.
|
||||
Before I explain how to use this to access the Rio500 please be warned:
|
||||
|
||||
W A R N I N G:
|
||||
--------------
|
||||
.. warning::
|
||||
|
||||
Please note that this software is still under development. The authors
|
||||
are in no way responsible for any damage that may occur, no matter how
|
||||
|
@ -42,15 +49,15 @@ power on problems with some chipsets. If you are having problems
|
|||
connecting to your RIO 500, try turning it on first and then plugging it
|
||||
into the USB cable.
|
||||
|
||||
Contact information:
|
||||
--------------------
|
||||
Contact Information
|
||||
-------------------
|
||||
|
||||
The main page for the project is hosted at sourceforge.net in the following
|
||||
URL: <http://rio500.sourceforge.net>. You can also go to the project's
|
||||
sourceforge home page at: <http://sourceforge.net/projects/rio500/>.
|
||||
There is also a mailing list: rio500-users@lists.sourceforge.net
|
||||
|
||||
Authors:
|
||||
Authors
|
||||
-------
|
||||
|
||||
Most of the code was written by Cesar Miquel <miquel@df.uba.ar>. Keith
|
||||
|
@ -61,12 +68,13 @@ re-written and Pete Ikusz along with the rest will re-design it. I would
|
|||
also like to thank Tri Nguyen <tmn_3022000@hotmail.com> who provided use
|
||||
with some important information regarding the communication with the Rio.
|
||||
|
||||
ADDITIONAL INFORMATION and Userspace tools
|
||||
Additional Information and userspace tools
|
||||
|
||||
http://rio500.sourceforge.net/
|
||||
|
||||
|
||||
REQUIREMENTS
|
||||
Requirements
|
||||
============
|
||||
|
||||
A host with a USB port. Ideally, either a UHCI (Intel) or OHCI
|
||||
(Compaq and others) hardware port should work.
|
||||
|
@ -80,11 +88,11 @@ A Linux kernel with RIO 500 support enabled.
|
|||
'lspci' which is only needed to determine the type of USB hardware
|
||||
available in your machine.
|
||||
|
||||
CONFIGURATION
|
||||
Configuration
|
||||
|
||||
Using `lspci -v`, determine the type of USB hardware available.
|
||||
|
||||
If you see something like:
|
||||
If you see something like::
|
||||
|
||||
USB Controller: ......
|
||||
Flags: .....
|
||||
|
@ -92,7 +100,7 @@ Using `lspci -v`, determine the type of USB hardware available.
|
|||
|
||||
Then you have a UHCI based controller.
|
||||
|
||||
If you see something like:
|
||||
If you see something like::
|
||||
|
||||
USB Controller: .....
|
||||
Flags: ....
|
||||
|
@ -107,8 +115,9 @@ hardware (determined from the steps above), 'USB Diamond Rio500 support', and
|
|||
(you may need to execute `depmod -a` to update the module
|
||||
dependencies).
|
||||
|
||||
Add a device for the USB rio500:
|
||||
`mknod /dev/usb/rio500 c 180 64`
|
||||
Add a device for the USB rio500::
|
||||
|
||||
mknod /dev/usb/rio500 c 180 64
|
||||
|
||||
Set appropriate permissions for /dev/usb/rio500 (don't forget about
|
||||
group and world permissions). Both read and write permissions are
|
||||
|
@ -116,12 +125,14 @@ required for proper operation.
|
|||
|
||||
Load the appropriate modules (if compiled as modules):
|
||||
|
||||
OHCI:
|
||||
OHCI::
|
||||
|
||||
modprobe usbcore
|
||||
modprobe usb-ohci
|
||||
modprobe rio500
|
||||
|
||||
UHCI:
|
||||
UHCI::
|
||||
|
||||
modprobe usbcore
|
||||
modprobe usb-uhci (or uhci)
|
||||
modprobe rio500
|
||||
|
@ -129,10 +140,10 @@ Load the appropriate modules (if compiled as modules):
|
|||
That's it. The Rio500 Utils at: http://rio500.sourceforge.net should
|
||||
be able to access the rio500.
|
||||
|
||||
BUGS
|
||||
Bugs
|
||||
====
|
||||
|
||||
If you encounter any problems feel free to drop me an email.
|
||||
|
||||
Bruce Tenison
|
||||
btenison@dibbs.net
|
||||
|
||||
|
|
|
@ -1,16 +1,17 @@
|
|||
usb-help.txt
|
||||
==============
|
||||
USB references
|
||||
==============
|
||||
|
||||
2008-Mar-7
|
||||
|
||||
For USB help other than the readme files that are located in
|
||||
Documentation/usb/*, see the following:
|
||||
`Documentation/usb/*`, see the following:
|
||||
|
||||
Linux-USB project: http://www.linux-usb.org
|
||||
- Linux-USB project: http://www.linux-usb.org
|
||||
mirrors at http://usb.in.tum.de/linux-usb/
|
||||
and http://it.linux-usb.org
|
||||
Linux USB Guide: http://linux-usb.sourceforge.net
|
||||
Linux-USB device overview (working devices and drivers):
|
||||
- Linux USB Guide: http://linux-usb.sourceforge.net
|
||||
- Linux-USB device overview (working devices and drivers):
|
||||
http://www.qbik.ch/usb/devices/
|
||||
|
||||
The Linux-USB mailing list is at linux-usb@vger.kernel.org
|
||||
|
||||
###
|
||||
|
|
|
@ -1,4 +1,9 @@
|
|||
INTRODUCTION
|
||||
==========
|
||||
USB serial
|
||||
==========
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
The USB serial driver currently supports a number of different USB to
|
||||
serial converter products, as well as some devices that use a serial
|
||||
|
@ -8,13 +13,15 @@ INTRODUCTION
|
|||
the different devices.
|
||||
|
||||
|
||||
CONFIGURATION
|
||||
Configuration
|
||||
=============
|
||||
|
||||
Currently the driver can handle up to 256 different serial interfaces at
|
||||
one time.
|
||||
|
||||
The major number that the driver uses is 188 so to use the driver,
|
||||
create the following nodes:
|
||||
create the following nodes::
|
||||
|
||||
mknod /dev/ttyUSB0 c 188 0
|
||||
mknod /dev/ttyUSB1 c 188 1
|
||||
mknod /dev/ttyUSB2 c 188 2
|
||||
|
@ -30,10 +37,12 @@ CONFIGURATION
|
|||
to.
|
||||
|
||||
|
||||
SPECIFIC DEVICES SUPPORTED
|
||||
Specific Devices Supported
|
||||
==========================
|
||||
|
||||
|
||||
ConnectTech WhiteHEAT 4 port converter
|
||||
--------------------------------------
|
||||
|
||||
ConnectTech has been very forthcoming with information about their
|
||||
device, including providing a unit to test with.
|
||||
|
@ -46,6 +55,7 @@ ConnectTech WhiteHEAT 4 port converter
|
|||
|
||||
|
||||
HandSpring Visor, Palm USB, and Clié USB driver
|
||||
-----------------------------------------------
|
||||
|
||||
This driver works with all HandSpring USB, Palm USB, and Sony Clié USB
|
||||
devices.
|
||||
|
@ -90,6 +100,7 @@ HandSpring Visor, Palm USB, and Clié USB driver
|
|||
|
||||
|
||||
PocketPC PDA Driver
|
||||
-------------------
|
||||
|
||||
This driver can be used to connect to Compaq iPAQ, HP Jornada, Casio EM500
|
||||
and other PDAs running Windows CE 3.0 or PocketPC 2002 using a USB
|
||||
|
@ -141,6 +152,7 @@ PocketPC PDA Driver
|
|||
|
||||
|
||||
Keyspan PDA Serial Adapter
|
||||
--------------------------
|
||||
|
||||
Single port DB-9 serial adapter, pushed as a PDA adapter for iMacs (mostly
|
||||
sold in Macintosh catalogs, comes in a translucent white/green dongle).
|
||||
|
@ -148,32 +160,37 @@ Keyspan PDA Serial Adapter
|
|||
This driver also works for the Xircom/Entrega single port serial adapter.
|
||||
|
||||
Current status:
|
||||
|
||||
Things that work:
|
||||
basic input/output (tested with 'cu')
|
||||
blocking write when serial line can't keep up
|
||||
changing baud rates (up to 115200)
|
||||
getting/setting modem control pins (TIOCM{GET,SET,BIS,BIC})
|
||||
sending break (although duration looks suspect)
|
||||
- basic input/output (tested with 'cu')
|
||||
- blocking write when serial line can't keep up
|
||||
- changing baud rates (up to 115200)
|
||||
- getting/setting modem control pins (TIOCM{GET,SET,BIS,BIC})
|
||||
- sending break (although duration looks suspect)
|
||||
|
||||
Things that don't:
|
||||
device strings (as logged by kernel) have trailing binary garbage
|
||||
device ID isn't right, might collide with other Keyspan products
|
||||
changing baud rates ought to flush tx/rx to avoid mangled half characters
|
||||
- device strings (as logged by kernel) have trailing binary garbage
|
||||
- device ID isn't right, might collide with other Keyspan products
|
||||
- changing baud rates ought to flush tx/rx to avoid mangled half characters
|
||||
|
||||
Big Things on the todo list:
|
||||
parity, 7 vs 8 bits per char, 1 or 2 stop bits
|
||||
HW flow control
|
||||
not all of the standard USB descriptors are handled: Get_Status, Set_Feature
|
||||
O_NONBLOCK, select()
|
||||
- parity, 7 vs 8 bits per char, 1 or 2 stop bits
|
||||
- HW flow control
|
||||
- not all of the standard USB descriptors are handled:
|
||||
Get_Status, Set_Feature, O_NONBLOCK, select()
|
||||
|
||||
For any questions or problems with this driver, please contact Brian
|
||||
Warner at warner@lothar.com
|
||||
|
||||
|
||||
Keyspan USA-series Serial Adapters
|
||||
----------------------------------
|
||||
|
||||
Single, Dual and Quad port adapters - driver uses Keyspan supplied
|
||||
firmware and is being developed with their support.
|
||||
|
||||
Current status:
|
||||
|
||||
The USA-18X, USA-28X, USA-19, USA-19W and USA-49W are supported and
|
||||
have been pretty thoroughly tested at various baud rates with 8-N-1
|
||||
character settings. Other character lengths and parity setups are
|
||||
|
@ -184,6 +201,7 @@ Keyspan USA-series Serial Adapters
|
|||
functionality.
|
||||
|
||||
More information is available at:
|
||||
|
||||
http://www.carnationsoftware.com/carnation/Keyspan.html
|
||||
|
||||
For any questions or problems with this driver, please contact Hugh
|
||||
|
@ -191,10 +209,12 @@ Keyspan USA-series Serial Adapters
|
|||
|
||||
|
||||
FTDI Single Port Serial Driver
|
||||
------------------------------
|
||||
|
||||
This is a single port DB-25 serial adapter.
|
||||
|
||||
Devices supported include:
|
||||
|
||||
- TripNav TN-200 USB GPS
|
||||
- Navis Engineering Bureau CH-4711 USB GPS
|
||||
|
||||
|
@ -202,12 +222,14 @@ FTDI Single Port Serial Driver
|
|||
|
||||
|
||||
ZyXEL omni.net lcd plus ISDN TA
|
||||
-------------------------------
|
||||
|
||||
This is an ISDN TA. Please report both successes and troubles to
|
||||
azummo@towertech.it
|
||||
|
||||
|
||||
Cypress M8 CY4601 Family Serial Driver
|
||||
--------------------------------------
|
||||
|
||||
This driver was in most part developed by Neil "koyama" Whelchel. It
|
||||
has been improved since that previous form to support dynamic serial
|
||||
|
@ -223,7 +245,8 @@ Cypress M8 CY4601 Family Serial Driver
|
|||
- DeLorme's USB Earthmate GPS (SiRF Star II lp arch)
|
||||
- Cypress HID->COM RS232 adapter
|
||||
|
||||
Note: Cypress Semiconductor claims no affiliation with the
|
||||
Note:
|
||||
Cypress Semiconductor claims no affiliation with the
|
||||
hid->com device.
|
||||
|
||||
Most devices using chipsets under the CY4601 family should
|
||||
|
@ -237,7 +260,8 @@ Cypress M8 CY4601 Family Serial Driver
|
|||
of the termios settings, along with some custom termios so that the
|
||||
output is in proper format and parsable.
|
||||
|
||||
The device can be put into sirf mode by issuing NMEA command:
|
||||
The device can be put into sirf mode by issuing NMEA command::
|
||||
|
||||
$PSRF100,<protocol>,<baud>,<databits>,<stopbits>,<parity>*CHECKSUM
|
||||
$PSRF100,0,9600,8,1,0*0C
|
||||
|
||||
|
@ -259,11 +283,14 @@ Cypress M8 CY4601 Family Serial Driver
|
|||
|
||||
If you have any questions, problems, patches, feature requests, etc. you can
|
||||
contact me here via email:
|
||||
|
||||
dignome@gmail.com
|
||||
|
||||
(your problems/patches can alternately be submitted to usb-devel)
|
||||
|
||||
|
||||
Digi AccelePort Driver
|
||||
----------------------
|
||||
|
||||
This driver supports the Digi AccelePort USB 2 and 4 devices, 2 port
|
||||
(plus a parallel port) and 4 port USB serial converters. The driver
|
||||
|
@ -285,42 +312,49 @@ Digi AccelePort Driver
|
|||
|
||||
|
||||
Belkin USB Serial Adapter F5U103
|
||||
--------------------------------
|
||||
|
||||
Single port DB-9/PS-2 serial adapter from Belkin with firmware by eTEK Labs.
|
||||
The Peracom single port serial adapter also works with this driver, as
|
||||
well as the GoHubs adapter.
|
||||
|
||||
Current status:
|
||||
The following have been tested and work:
|
||||
Baud rate 300-230400
|
||||
Data bits 5-8
|
||||
Stop bits 1-2
|
||||
Parity N,E,O,M,S
|
||||
Handshake None, Software (XON/XOFF), Hardware (CTSRTS,CTSDTR)*
|
||||
Break Set and clear
|
||||
Line control Input/Output query and control **
|
||||
|
||||
* Hardware input flow control is only enabled for firmware
|
||||
The following have been tested and work:
|
||||
|
||||
- Baud rate 300-230400
|
||||
- Data bits 5-8
|
||||
- Stop bits 1-2
|
||||
- Parity N,E,O,M,S
|
||||
- Handshake None, Software (XON/XOFF), Hardware (CTSRTS,CTSDTR) [1]_
|
||||
- Break Set and clear
|
||||
- Line control Input/Output query and control [2]_
|
||||
|
||||
.. [1]
|
||||
Hardware input flow control is only enabled for firmware
|
||||
levels above 2.06. Read source code comments describing Belkin
|
||||
firmware errata. Hardware output flow control is working for all
|
||||
firmware versions.
|
||||
** Queries of inputs (CTS,DSR,CD,RI) show the last
|
||||
|
||||
.. [2]
|
||||
Queries of inputs (CTS,DSR,CD,RI) show the last
|
||||
reported state. Queries of outputs (DTR,RTS) show the last
|
||||
requested state and may not reflect current state as set by
|
||||
automatic hardware flow control.
|
||||
|
||||
TO DO List:
|
||||
-- Add true modem control line query capability. Currently tracks the
|
||||
- Add true modem control line query capability. Currently tracks the
|
||||
states reported by the interrupt and the states requested.
|
||||
-- Add error reporting back to application for UART error conditions.
|
||||
-- Add support for flush ioctls.
|
||||
-- Add everything else that is missing :)
|
||||
- Add error reporting back to application for UART error conditions.
|
||||
- Add support for flush ioctls.
|
||||
- Add everything else that is missing :)
|
||||
|
||||
For any questions or problems with this driver, please contact William
|
||||
Greathouse at wgreathouse@smva.com
|
||||
|
||||
|
||||
Empeg empeg-car Mark I/II Driver
|
||||
--------------------------------
|
||||
|
||||
This is an experimental driver to provide connectivity support for the
|
||||
client synchronization tools for an Empeg empeg-car mp3 player.
|
||||
|
@ -335,6 +369,7 @@ Empeg empeg-car Mark I/II Driver
|
|||
|
||||
|
||||
MCT USB Single Port Serial Adapter U232
|
||||
---------------------------------------
|
||||
|
||||
This driver is for the MCT USB-RS232 Converter (25 pin, Model No.
|
||||
U232-P25) from Magic Control Technology Corp. (there is also a 9 pin
|
||||
|
@ -355,35 +390,39 @@ MCT USB Single Port Serial Adapter U232
|
|||
|
||||
|
||||
Inside Out Networks Edgeport Driver
|
||||
-----------------------------------
|
||||
|
||||
This driver supports all devices made by Inside Out Networks, specifically
|
||||
the following models:
|
||||
Edgeport/4
|
||||
Rapidport/4
|
||||
Edgeport/4t
|
||||
Edgeport/2
|
||||
Edgeport/4i
|
||||
Edgeport/2i
|
||||
Edgeport/421
|
||||
Edgeport/21
|
||||
Edgeport/8
|
||||
Edgeport/8 Dual
|
||||
Edgeport/2D8
|
||||
Edgeport/4D8
|
||||
Edgeport/8i
|
||||
Edgeport/2 DIN
|
||||
Edgeport/4 DIN
|
||||
Edgeport/16 Dual
|
||||
|
||||
- Edgeport/4
|
||||
- Rapidport/4
|
||||
- Edgeport/4t
|
||||
- Edgeport/2
|
||||
- Edgeport/4i
|
||||
- Edgeport/2i
|
||||
- Edgeport/421
|
||||
- Edgeport/21
|
||||
- Edgeport/8
|
||||
- Edgeport/8 Dual
|
||||
- Edgeport/2D8
|
||||
- Edgeport/4D8
|
||||
- Edgeport/8i
|
||||
- Edgeport/2 DIN
|
||||
- Edgeport/4 DIN
|
||||
- Edgeport/16 Dual
|
||||
|
||||
For any questions or problems with this driver, please contact Greg
|
||||
Kroah-Hartman at greg@kroah.com
|
||||
|
||||
|
||||
REINER SCT cyberJack pinpad/e-com USB chipcard reader
|
||||
-----------------------------------------------------
|
||||
|
||||
Interface to ISO 7816 compatible contactbased chipcards, e.g. GSM SIMs.
|
||||
|
||||
Current status:
|
||||
|
||||
This is the kernel part of the driver for this USB card reader.
|
||||
There is also a user part for a CT-API driver available. A site
|
||||
for downloading is TBA. For now, you can request it from the
|
||||
|
@ -394,6 +433,7 @@ REINER SCT cyberJack pinpad/e-com USB chipcard reader
|
|||
|
||||
|
||||
Prolific PL2303 Driver
|
||||
----------------------
|
||||
|
||||
This driver supports any device that has the PL2303 chip from Prolific
|
||||
in it. This includes a number of single port USB to serial converters,
|
||||
|
@ -406,8 +446,10 @@ Prolific PL2303 Driver
|
|||
|
||||
|
||||
KL5KUSB105 chipset / PalmConnect USB single-port adapter
|
||||
--------------------------------------------------------
|
||||
|
||||
Current status:
|
||||
|
||||
The driver was put together by looking at the usb bus transactions
|
||||
done by Palm's driver under Windows, so a lot of functionality is
|
||||
still missing. Notably, serial ioctls are sometimes faked or not yet
|
||||
|
@ -422,16 +464,20 @@ Current status:
|
|||
information on this driver.
|
||||
|
||||
Winchiphead CH341 Driver
|
||||
------------------------
|
||||
|
||||
This driver is for the Winchiphead CH341 USB-RS232 Converter. This chip
|
||||
also implements an IEEE 1284 parallel port, I2C and SPI, but that is not
|
||||
supported by the driver. The protocol was analyzed from the behaviour
|
||||
of the Windows driver, no datasheet is available at present.
|
||||
|
||||
The manufacturer's website: http://www.winchiphead.com/.
|
||||
|
||||
For any questions or problems with this driver, please contact
|
||||
frank@kingswood-consulting.co.uk.
|
||||
|
||||
Moschip MCS7720, MCS7715 driver
|
||||
-------------------------------
|
||||
|
||||
These chips are present in devices sold by various manufacturers, such as Syba
|
||||
and Cables Unlimited. There may be others. The 7720 provides two serial
|
||||
|
@ -449,6 +495,7 @@ Moschip MCS7720, MCS7715 driver
|
|||
don't have one of these devices, so I can't say for sure.
|
||||
|
||||
Generic Serial driver
|
||||
---------------------
|
||||
|
||||
If your device is not one of the above listed devices, compatible with
|
||||
the above models, you can try out the "generic" interface. This
|
||||
|
@ -457,12 +504,15 @@ Generic Serial driver
|
|||
is required of your device is that it has at least one bulk in endpoint,
|
||||
or one bulk out endpoint.
|
||||
|
||||
To enable the generic driver to recognize your device, provide
|
||||
To enable the generic driver to recognize your device, provide::
|
||||
|
||||
echo <vid> <pid> >/sys/bus/usb-serial/drivers/generic/new_id
|
||||
|
||||
where the <vid> and <pid> is replaced with the hex representation of your
|
||||
device's vendor id and product id.
|
||||
If the driver is compiled as a module you can also provide one id when
|
||||
loading the module
|
||||
loading the module::
|
||||
|
||||
insmod usbserial vendor=0x#### product=0x####
|
||||
|
||||
This driver has been successfully used to connect to the NetChip USB
|
||||
|
@ -473,7 +523,8 @@ Generic Serial driver
|
|||
Kroah-Hartman at greg@kroah.com
|
||||
|
||||
|
||||
CONTACT:
|
||||
Contact
|
||||
=======
|
||||
|
||||
If anyone has any problems using these drivers, with any of the above
|
||||
specified products, please contact the specific driver's author listed
|
||||
|
|
|
@ -1,3 +1,7 @@
|
|||
===============
|
||||
USB/IP protocol
|
||||
===============
|
||||
|
||||
PRELIMINARY DRAFT, MAY CONTAIN MISTAKES!
|
||||
28 Jun 2011
|
||||
|
||||
|
@ -12,6 +16,8 @@ in one or more pieces at the low level transport layer). The server sends back
|
|||
the OP_REP_DEVLIST packet which lists the exported USB devices. Finally the
|
||||
TCP/IP connection is closed.
|
||||
|
||||
::
|
||||
|
||||
virtual host controller usb host
|
||||
"client" "server"
|
||||
(imports USB devices) (exports USB devices)
|
||||
|
@ -32,6 +38,8 @@ send two types of packets: the USBIP_CMD_SUBMIT to submit an URB, and
|
|||
USBIP_CMD_UNLINK to unlink a previously submitted URB. The answers of the
|
||||
server may be USBIP_RET_SUBMIT and USBIP_RET_UNLINK respectively.
|
||||
|
||||
::
|
||||
|
||||
virtual host controller usb host
|
||||
"client" "server"
|
||||
(imports USB devices) (exports USB devices)
|
||||
|
@ -88,270 +96,316 @@ The fields are in network (big endian) byte order meaning that the most signific
|
|||
byte (MSB) is stored at the lowest address.
|
||||
|
||||
|
||||
OP_REQ_DEVLIST: Retrieve the list of exported USB devices.
|
||||
OP_REQ_DEVLIST:
|
||||
Retrieve the list of exported USB devices.
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
2 | 2 | 0x8005 | Command code: Retrieve the list of exported USB
|
||||
| | | devices.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | 0x00000000 | Status: unused, shall be set to 0
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0 |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 2 | 2 | 0x8005 | Command code: Retrieve the list of exported USB |
|
||||
| | | | devices. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | 0x00000000 | Status: unused, shall be set to 0 |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
OP_REP_DEVLIST: Reply with the list of exported USB devices.
|
||||
OP_REP_DEVLIST:
|
||||
Reply with the list of exported USB devices.
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
2 | 2 | 0x0005 | Reply code: The list of exported USB devices.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | 0x00000000 | Status: 0 for OK
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | 4 | n | Number of exported devices: 0 means no exported
|
||||
| | | devices.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x0C | | | From now on the exported n devices are described,
|
||||
| | | if any. If no devices are exported the message
|
||||
| | | ends with the previous "number of exported
|
||||
| | | devices" field.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
| 256 | | path: Path of the device on the host exporting the
|
||||
| | | USB device, string closed with zero byte, e.g.
|
||||
| | | "/sys/devices/pci0000:00/0000:00:1d.1/usb3/3-2"
|
||||
| | | The unused bytes shall be filled with zero
|
||||
| | | bytes.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x10C | 32 | | busid: Bus ID of the exported device, string
|
||||
| | | closed with zero byte, e.g. "3-2". The unused
|
||||
| | | bytes shall be filled with zero bytes.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x12C | 4 | | busnum
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x130 | 4 | | devnum
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x134 | 4 | | speed
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x138 | 2 | | idVendor
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13A | 2 | | idProduct
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13C | 2 | | bcdDevice
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13E | 1 | | bDeviceClass
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13F | 1 | | bDeviceSubClass
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x140 | 1 | | bDeviceProtocol
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x141 | 1 | | bConfigurationValue
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x142 | 1 | | bNumConfigurations
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x143 | 1 | | bNumInterfaces
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x144 | | m_0 | From now on each interface is described, all
|
||||
| | | together bNumInterfaces times, with the
|
||||
| | | the following 4 fields:
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
| 1 | | bInterfaceClass
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x145 | 1 | | bInterfaceSubClass
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x146 | 1 | | bInterfaceProtocol
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x147 | 1 | | padding byte for alignment, shall be set to zero
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0xC + | | | The second exported USB device starts at i=1
|
||||
i*0x138 + | | | with the busid field.
|
||||
m_(i-1)*4 | | |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0.|
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 2 | 2 | 0x0005 | Reply code: The list of exported USB devices. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | 0x00000000 | Status: 0 for OK |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | 4 | n | Number of exported devices: 0 means no exported |
|
||||
| | | | devices. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x0C | | | From now on the exported n devices are described, |
|
||||
| | | | if any. If no devices are exported the message |
|
||||
| | | | ends with the previous "number of exported |
|
||||
| | | | devices" field. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| | 256 | | path: Path of the device on the host exporting the|
|
||||
| | | | USB device, string closed with zero byte, e.g. |
|
||||
| | | | "/sys/devices/pci0000:00/0000:00:1d.1/usb3/3-2" |
|
||||
| | | | The unused bytes shall be filled with zero |
|
||||
| | | | bytes. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x10C | 32 | | busid: Bus ID of the exported device, string |
|
||||
| | | | closed with zero byte, e.g. "3-2". The unused |
|
||||
| | | | bytes shall be filled with zero bytes. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x12C | 4 | | busnum |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x130 | 4 | | devnum |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x134 | 4 | | speed |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x138 | 2 | | idVendor |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13A | 2 | | idProduct |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13C | 2 | | bcdDevice |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13E | 1 | | bDeviceClass |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13F | 1 | | bDeviceSubClass |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x140 | 1 | | bDeviceProtocol |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x141 | 1 | | bConfigurationValue |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x142 | 1 | | bNumConfigurations |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x143 | 1 | | bNumInterfaces |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x144 | | m_0 | From now on each interface is described, all |
|
||||
| | | | together bNumInterfaces times, with the |
|
||||
| | | | the following 4 fields: |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| | 1 | | bInterfaceClass |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x145 | 1 | | bInterfaceSubClass |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x146 | 1 | | bInterfaceProtocol |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x147 | 1 | | padding byte for alignment, shall be set to zero |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0xC + | | | The second exported USB device starts at i=1 |
|
||||
| i*0x138 + | | | with the busid field. |
|
||||
| m_(i-1)*4 | | | |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
OP_REQ_IMPORT: Request to import (attach) a remote USB device.
|
||||
OP_REQ_IMPORT:
|
||||
Request to import (attach) a remote USB device.
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
2 | 2 | 0x8003 | Command code: import a remote USB device.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | 0x00000000 | Status: unused, shall be set to 0
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | 32 | | busid: the busid of the exported device on the
|
||||
| | | remote host. The possible values are taken
|
||||
| | | from the message field OP_REP_DEVLIST.busid.
|
||||
| | | A string closed with zero, the unused bytes
|
||||
| | | shall be filled with zeros.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0 |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 2 | 2 | 0x8003 | Command code: import a remote USB device. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | 0x00000000 | Status: unused, shall be set to 0 |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | 32 | | busid: the busid of the exported device on the |
|
||||
| | | | remote host. The possible values are taken |
|
||||
| | | | from the message field OP_REP_DEVLIST.busid. |
|
||||
| | | | A string closed with zero, the unused bytes |
|
||||
| | | | shall be filled with zeros. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
OP_REP_IMPORT: Reply to import (attach) a remote USB device.
|
||||
OP_REP_IMPORT:
|
||||
Reply to import (attach) a remote USB device.
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
2 | 2 | 0x0003 | Reply code: Reply to import.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | 0x00000000 | Status: 0 for OK
|
||||
| | | 1 for error
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | | | From now on comes the details of the imported
|
||||
| | | device, if the previous status field was OK (0),
|
||||
| | | otherwise the reply ends with the status field.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
| 256 | | path: Path of the device on the host exporting the
|
||||
| | | USB device, string closed with zero byte, e.g.
|
||||
| | | "/sys/devices/pci0000:00/0000:00:1d.1/usb3/3-2"
|
||||
| | | The unused bytes shall be filled with zero
|
||||
| | | bytes.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x108 | 32 | | busid: Bus ID of the exported device, string
|
||||
| | | closed with zero byte, e.g. "3-2". The unused
|
||||
| | | bytes shall be filled with zero bytes.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x128 | 4 | | busnum
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x12C | 4 | | devnum
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x130 | 4 | | speed
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x134 | 2 | | idVendor
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x136 | 2 | | idProduct
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x138 | 2 | | bcdDevice
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x139 | 1 | | bDeviceClass
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13A | 1 | | bDeviceSubClass
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13B | 1 | | bDeviceProtocol
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13C | 1 | | bConfigurationValue
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13D | 1 | | bNumConfigurations
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x13E | 1 | | bNumInterfaces
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 2 | 0x0100 | Binary-coded decimal USBIP version number: v1.0.0 |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 2 | 2 | 0x0003 | Reply code: Reply to import. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | 0x00000000 | Status: |
|
||||
| | | | |
|
||||
| | | | - 0 for OK |
|
||||
| | | | - 1 for error |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | | | From now on comes the details of the imported |
|
||||
| | | | device, if the previous status field was OK (0), |
|
||||
| | | | otherwise the reply ends with the status field. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| | 256 | | path: Path of the device on the host exporting the|
|
||||
| | | | USB device, string closed with zero byte, e.g. |
|
||||
| | | | "/sys/devices/pci0000:00/0000:00:1d.1/usb3/3-2" |
|
||||
| | | | The unused bytes shall be filled with zero |
|
||||
| | | | bytes. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x108 | 32 | | busid: Bus ID of the exported device, string |
|
||||
| | | | closed with zero byte, e.g. "3-2". The unused |
|
||||
| | | | bytes shall be filled with zero bytes. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x128 | 4 | | busnum |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x12C | 4 | | devnum |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x130 | 4 | | speed |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x134 | 2 | | idVendor |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x136 | 2 | | idProduct |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x138 | 2 | | bcdDevice |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x139 | 1 | | bDeviceClass |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13A | 1 | | bDeviceSubClass |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13B | 1 | | bDeviceProtocol |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13C | 1 | | bConfigurationValue |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13D | 1 | | bNumConfigurations |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x13E | 1 | | bNumInterfaces |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
USBIP_CMD_SUBMIT: Submit an URB
|
||||
USBIP_CMD_SUBMIT:
|
||||
Submit an URB
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 4 | 0x00000001 | command: Submit an URB
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | | seqnum: the sequence number of the URB to submit
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | 4 | | devid
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0xC | 4 | | direction: 0: USBIP_DIR_OUT
|
||||
| | | 1: USBIP_DIR_IN
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x10 | 4 | | ep: endpoint number, possible values are: 0...15
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x14 | 4 | | transfer_flags: possible values depend on the
|
||||
| | | URB transfer type, see below
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x18 | 4 | | transfer_buffer_length
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x1C | 4 | | start_frame: specify the selected frame to
|
||||
| | | transmit an ISO frame, ignored if URB_ISO_ASAP
|
||||
| | | is specified at transfer_flags
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x20 | 4 | | number_of_packets: number of ISO packets
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x24 | 4 | | interval: maximum time for the request on the
|
||||
| | | server-side host controller
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x28 | 8 | | setup: data bytes for USB setup, filled with
|
||||
| | | zeros if not used
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x30 | | | URB data. For ISO transfers the padding between
|
||||
| | | each ISO packets is not transmitted.
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 4 | 0x00000001 | command: Submit an URB |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | | seqnum: the sequence number of the URB to submit |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | 4 | | devid |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0xC | 4 | | direction: |
|
||||
| | | | |
|
||||
| | | | - 0: USBIP_DIR_OUT |
|
||||
| | | | - 1: USBIP_DIR_IN |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x10 | 4 | | ep: endpoint number, possible values are: 0...15 |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x14 | 4 | | transfer_flags: possible values depend on the |
|
||||
| | | | URB transfer type, see below |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x18 | 4 | | transfer_buffer_length |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x1C | 4 | | start_frame: specify the selected frame to |
|
||||
| | | | transmit an ISO frame, ignored if URB_ISO_ASAP |
|
||||
| | | | is specified at transfer_flags |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x20 | 4 | | number_of_packets: number of ISO packets |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x24 | 4 | | interval: maximum time for the request on the |
|
||||
| | | | server-side host controller |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x28 | 8 | | setup: data bytes for USB setup, filled with |
|
||||
| | | | zeros if not used |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x30 | | | URB data. For ISO transfers the padding between |
|
||||
| | | | each ISO packets is not transmitted. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
|
||||
Allowed transfer_flags | value | control | interrupt | bulk | isochronous
|
||||
-------------------------+------------+---------+-----------+----------+-------------
|
||||
URB_SHORT_NOT_OK | 0x00000001 | only in | only in | only in | no
|
||||
URB_ISO_ASAP | 0x00000002 | no | no | no | yes
|
||||
URB_NO_TRANSFER_DMA_MAP | 0x00000004 | yes | yes | yes | yes
|
||||
URB_ZERO_PACKET | 0x00000040 | no | no | only out | no
|
||||
URB_NO_INTERRUPT | 0x00000080 | yes | yes | yes | yes
|
||||
URB_FREE_BUFFER | 0x00000100 | yes | yes | yes | yes
|
||||
URB_DIR_MASK | 0x00000200 | yes | yes | yes | yes
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| Allowed transfer_flags | value | control | interrupt | bulk | isochronous |
|
||||
+=========================+============+=========+===========+==========+=============+
|
||||
| URB_SHORT_NOT_OK | 0x00000001 | only in | only in | only in | no |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| URB_ISO_ASAP | 0x00000002 | no | no | no | yes |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| URB_NO_TRANSFER_DMA_MAP | 0x00000004 | yes | yes | yes | yes |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| URB_ZERO_PACKET | 0x00000040 | no | no | only out | no |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| URB_NO_INTERRUPT | 0x00000080 | yes | yes | yes | yes |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| URB_FREE_BUFFER | 0x00000100 | yes | yes | yes | yes |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
| URB_DIR_MASK | 0x00000200 | yes | yes | yes | yes |
|
||||
+-------------------------+------------+---------+-----------+----------+-------------+
|
||||
|
||||
|
||||
USBIP_RET_SUBMIT: Reply for submitting an URB
|
||||
USBIP_RET_SUBMIT:
|
||||
Reply for submitting an URB
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 4 | 0x00000003 | command
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | | seqnum: URB sequence number
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | 4 | | devid
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0xC | 4 | | direction: 0: USBIP_DIR_OUT
|
||||
| | | 1: USBIP_DIR_IN
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x10 | 4 | | ep: endpoint number
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x14 | 4 | | status: zero for successful URB transaction,
|
||||
| | | otherwise some kind of error happened.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x18 | 4 | n | actual_length: number of URB data bytes
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x1C | 4 | | start_frame: for an ISO frame the actually
|
||||
| | | selected frame for transmit.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x20 | 4 | | number_of_packets
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x24 | 4 | | error_count
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x28 | 8 | | setup: data bytes for USB setup, filled with
|
||||
| | | zeros if not used
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x30 | n | | URB data bytes. For ISO transfers the padding
|
||||
| | | between each ISO packets is not transmitted.
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 4 | 0x00000003 | command |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | | seqnum: URB sequence number |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | 4 | | devid |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0xC | 4 | | direction: |
|
||||
| | | | |
|
||||
| | | | - 0: USBIP_DIR_OUT |
|
||||
| | | | - 1: USBIP_DIR_IN |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x10 | 4 | | ep: endpoint number |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x14 | 4 | | status: zero for successful URB transaction, |
|
||||
| | | | otherwise some kind of error happened. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x18 | 4 | n | actual_length: number of URB data bytes |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x1C | 4 | | start_frame: for an ISO frame the actually |
|
||||
| | | | selected frame for transmit. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x20 | 4 | | number_of_packets |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x24 | 4 | | error_count |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x28 | 8 | | setup: data bytes for USB setup, filled with |
|
||||
| | | | zeros if not used |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x30 | n | | URB data bytes. For ISO transfers the padding |
|
||||
| | | | between each ISO packets is not transmitted. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
USBIP_CMD_UNLINK: Unlink an URB
|
||||
USBIP_CMD_UNLINK:
|
||||
Unlink an URB
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 4 | 0x00000002 | command: URB unlink command
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | | seqnum: URB sequence number to unlink: FIXME: is this so?
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | 4 | | devid
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0xC | 4 | | direction: 0: USBIP_DIR_OUT
|
||||
| | | 1: USBIP_DIR_IN
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x10 | 4 | | ep: endpoint number: zero
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x14 | 4 | | seqnum: the URB sequence number given previously
|
||||
| | | at USBIP_CMD_SUBMIT.seqnum field
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x30 | n | | URB data bytes. For ISO transfers the padding
|
||||
| | | between each ISO packets is not transmitted.
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 4 | 0x00000002 | command: URB unlink command |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | | seqnum: URB sequence number to unlink: |
|
||||
| | | | |
|
||||
| | | | FIXME: |
|
||||
| | | | is this so? |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | 4 | | devid |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0xC | 4 | | direction: |
|
||||
| | | | |
|
||||
| | | | - 0: USBIP_DIR_OUT |
|
||||
| | | | - 1: USBIP_DIR_IN |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x10 | 4 | | ep: endpoint number: zero |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x14 | 4 | | seqnum: the URB sequence number given previously |
|
||||
| | | | at USBIP_CMD_SUBMIT.seqnum field |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x30 | n | | URB data bytes. For ISO transfers the padding |
|
||||
| | | | between each ISO packets is not transmitted. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
||||
USBIP_RET_UNLINK: Reply for URB unlink
|
||||
USBIP_RET_UNLINK:
|
||||
Reply for URB unlink
|
||||
|
||||
Offset | Length | Value | Description
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0 | 4 | 0x00000004 | command: reply for the URB unlink command
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
4 | 4 | | seqnum: the unlinked URB sequence number
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
8 | 4 | | devid
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0xC | 4 | | direction: 0: USBIP_DIR_OUT
|
||||
| | | 1: USBIP_DIR_IN
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x10 | 4 | | ep: endpoint number
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x14 | 4 | | status: This is the value contained in the
|
||||
| | | urb->status in the URB completition handler.
|
||||
| | | FIXME: a better explanation needed.
|
||||
-----------+--------+------------+---------------------------------------------------
|
||||
0x30 | n | | URB data bytes. For ISO transfers the padding
|
||||
| | | between each ISO packets is not transmitted.
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| Offset | Length | Value | Description |
|
||||
+===========+========+============+===================================================+
|
||||
| 0 | 4 | 0x00000004 | command: reply for the URB unlink command |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 4 | 4 | | seqnum: the unlinked URB sequence number |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 8 | 4 | | devid |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0xC | 4 | | direction: |
|
||||
| | | | |
|
||||
| | | | - 0: USBIP_DIR_OUT |
|
||||
| | | | - 1: USBIP_DIR_IN |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x10 | 4 | | ep: endpoint number |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x14 | 4 | | status: This is the value contained in the |
|
||||
| | | | urb->status in the URB completition handler. |
|
||||
| | | | |
|
||||
| | | | FIXME: |
|
||||
| | | | a better explanation needed. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
| 0x30 | n | | URB data bytes. For ISO transfers the padding |
|
||||
| | | | between each ISO packets is not transmitted. |
|
||||
+-----------+--------+------------+---------------------------------------------------+
|
||||
|
|
|
@ -1,4 +1,9 @@
|
|||
* Introduction
|
||||
======
|
||||
usbmon
|
||||
======
|
||||
|
||||
Introduction
|
||||
============
|
||||
|
||||
The name "usbmon" in lowercase refers to a facility in kernel which is
|
||||
used to collect traces of I/O on the USB bus. This function is analogous
|
||||
|
@ -16,7 +21,8 @@ Two APIs are currently implemented: "text" and "binary". The binary API
|
|||
is available through a character device in /dev namespace and is an ABI.
|
||||
The text API is deprecated since 2.6.35, but available for convenience.
|
||||
|
||||
* How to use usbmon to collect raw text traces
|
||||
How to use usbmon to collect raw text traces
|
||||
============================================
|
||||
|
||||
Unlike the packet socket, usbmon has an interface which provides traces
|
||||
in a text format. This is used for two purposes. First, it serves as a
|
||||
|
@ -26,16 +32,17 @@ are finalized. Second, humans can read it in case tools are not available.
|
|||
To collect a raw text trace, execute following steps.
|
||||
|
||||
1. Prepare
|
||||
----------
|
||||
|
||||
Mount debugfs (it has to be enabled in your kernel configuration), and
|
||||
load the usbmon module (if built as module). The second step is skipped
|
||||
if usbmon is built into the kernel.
|
||||
if usbmon is built into the kernel::
|
||||
|
||||
# mount -t debugfs none_debugs /sys/kernel/debug
|
||||
# modprobe usbmon
|
||||
#
|
||||
|
||||
Verify that bus sockets are present.
|
||||
Verify that bus sockets are present:
|
||||
|
||||
# ls /sys/kernel/debug/usb/usbmon
|
||||
0s 0u 1s 1t 1u 2s 2t 2u 3s 3t 3u 4s 4t 4u
|
||||
|
@ -46,12 +53,14 @@ buses), and skip to step #3, or find the bus used by your device with step #2.
|
|||
This allows to filter away annoying devices that talk continuously.
|
||||
|
||||
2. Find which bus connects to the desired device
|
||||
------------------------------------------------
|
||||
|
||||
Run "cat /sys/kernel/debug/usb/devices", and find the T-line which corresponds
|
||||
to the device. Usually you do it by looking for the vendor string. If you have
|
||||
many similar devices, unplug one and compare the two
|
||||
/sys/kernel/debug/usb/devices outputs. The T-line will have a bus number.
|
||||
Example:
|
||||
|
||||
Example::
|
||||
|
||||
T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 2 Spd=12 MxCh= 0
|
||||
D: Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs= 1
|
||||
|
@ -65,10 +74,13 @@ S: Product=UC100KM V2.00
|
|||
Bus 003 Device 002: ID 0557:2004 ATEN UC100KM V2.00
|
||||
|
||||
3. Start 'cat'
|
||||
--------------
|
||||
|
||||
::
|
||||
|
||||
# cat /sys/kernel/debug/usb/usbmon/3u > /tmp/1.mon.out
|
||||
|
||||
to listen on a single bus, otherwise, to listen on all buses, type:
|
||||
to listen on a single bus, otherwise, to listen on all buses, type::
|
||||
|
||||
# cat /sys/kernel/debug/usb/usbmon/0u > /tmp/1.mon.out
|
||||
|
||||
|
@ -77,11 +89,13 @@ redirected to a desirable location. This is preferred, because it is going
|
|||
to be quite long.
|
||||
|
||||
4. Perform the desired operation on the USB bus
|
||||
-----------------------------------------------
|
||||
|
||||
This is where you do something that creates the traffic: plug in a flash key,
|
||||
copy files, control a webcam, etc.
|
||||
|
||||
5. Kill cat
|
||||
-----------
|
||||
|
||||
Usually it's done with a keyboard interrupt (Control-C).
|
||||
|
||||
|
@ -89,7 +103,8 @@ At this point the output file (/tmp/1.mon.out in this example) can be saved,
|
|||
sent by e-mail, or inspected with a text editor. In the last case make sure
|
||||
that the file size is not excessive for your favourite editor.
|
||||
|
||||
* Raw text data format
|
||||
Raw text data format
|
||||
====================
|
||||
|
||||
Two formats are supported currently: the original, or '1t' format, and
|
||||
the '1u' format. The '1t' format is deprecated in kernel 2.6.21. The '1u'
|
||||
|
@ -122,10 +137,14 @@ Here is the list of words, from left to right:
|
|||
- "Address" word (formerly a "pipe"). It consists of four fields, separated by
|
||||
colons: URB type and direction, Bus number, Device address, Endpoint number.
|
||||
Type and direction are encoded with two bytes in the following manner:
|
||||
|
||||
== == =============================
|
||||
Ci Co Control input and output
|
||||
Zi Zo Isochronous input and output
|
||||
Ii Io Interrupt input and output
|
||||
Bi Bo Bulk input and output
|
||||
== == =============================
|
||||
|
||||
Bus number, Device address, and Endpoint are decimal numbers, but they may
|
||||
have leading zeros, for the sake of human readers.
|
||||
|
||||
|
@ -178,22 +197,23 @@ Here is the list of words, from left to right:
|
|||
|
||||
Examples:
|
||||
|
||||
An input control transfer to get a port status.
|
||||
An input control transfer to get a port status::
|
||||
|
||||
d5ea89a0 3575914555 S Ci:1:001:0 s a3 00 0000 0003 0004 4 <
|
||||
d5ea89a0 3575914560 C Ci:1:001:0 0 4 = 01050000
|
||||
|
||||
An output bulk transfer to send a SCSI command 0x28 (READ_10) in a 31-byte
|
||||
Bulk wrapper to a storage device at address 5:
|
||||
Bulk wrapper to a storage device at address 5::
|
||||
|
||||
dd65f0e8 4128379752 S Bo:1:005:2 -115 31 = 55534243 ad000000 00800000 80010a28 20000000 20000040 00000000 000000
|
||||
dd65f0e8 4128379808 C Bo:1:005:2 0 31 >
|
||||
|
||||
* Raw binary format and API
|
||||
Raw binary format and API
|
||||
=========================
|
||||
|
||||
The overall architecture of the API is about the same as the one above,
|
||||
only the events are delivered in binary format. Each event is sent in
|
||||
the following structure (its name is made up, so that we can refer to it):
|
||||
the following structure (its name is made up, so that we can refer to it)::
|
||||
|
||||
struct usbmon_packet {
|
||||
u64 id; /* 0: URB ID - from submission to callback */
|
||||
|
@ -244,7 +264,7 @@ no events are available.
|
|||
|
||||
MON_IOCG_STATS, defined as _IOR(MON_IOC_MAGIC, 3, struct mon_bin_stats)
|
||||
|
||||
The argument is a pointer to the following structure:
|
||||
The argument is a pointer to the following structure::
|
||||
|
||||
struct mon_bin_stats {
|
||||
u32 queued;
|
||||
|
@ -273,7 +293,7 @@ This call returns the current size of the buffer in bytes.
|
|||
|
||||
These calls wait for events to arrive if none were in the kernel buffer,
|
||||
then return the first event. The argument is a pointer to the following
|
||||
structure:
|
||||
structure::
|
||||
|
||||
struct mon_get_arg {
|
||||
struct usbmon_packet *hdr;
|
||||
|
@ -290,7 +310,7 @@ The MON_IOCX_GET copies 48 bytes to hdr area, MON_IOCX_GETX copies 64 bytes.
|
|||
MON_IOCX_MFETCH, defined as _IOWR(MON_IOC_MAGIC, 7, struct mon_mfetch_arg)
|
||||
|
||||
This ioctl is primarily used when the application accesses the buffer
|
||||
with mmap(2). Its argument is a pointer to the following structure:
|
||||
with mmap(2). Its argument is a pointer to the following structure::
|
||||
|
||||
struct mon_mfetch_arg {
|
||||
uint32_t *offvec; /* Vector of events fetched */
|
||||
|
@ -329,7 +349,7 @@ be polled with select(2) and poll(2). But lseek(2) does not work.
|
|||
The basic idea is simple:
|
||||
|
||||
To prepare, map the buffer by getting the current size, then using mmap(2).
|
||||
Then, execute a loop similar to the one written in pseudo-code below:
|
||||
Then, execute a loop similar to the one written in pseudo-code below::
|
||||
|
||||
struct mon_mfetch_arg fetch;
|
||||
struct usbmon_packet *hdr;
|
||||
|
|
Loading…
Reference in a new issue