[PATCH] fix for Documentation/dvb/bt8xx.txt?=
* /usr/src/linux-2.6.12/Documentation/dvb/bt8xx.txt almost completely remade the text file with the following focuses: useful infos for beginners: how to load modules manually and automatically developers infos are reduced to a minimum as module loading works automatic in kernel >= 2.6.12 by loading modules bttv and dvb-bt8xx I completely erased the out of date TwinHan part dealing with additional parameters, debug parameters, and overriding autodetection Further up to date information about TwinHan + clones can be found in /Documentation/dvb/ci.txt Signed-off-by: Uwe Bugla <uwe.bugla@gmx.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>hifive-unleashed-5.1
Uwe Bugla
Linus Torvalds
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How to get the Nebula, PCTV and Twinhan DST cards working
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=========================================================
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How to get the Nebula Electronics DigiTV, Pinnacle PCTV Sat, Twinhan DST + clones working
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=========================================================================================
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This class of cards has a bt878a as the PCI interface, and
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require the bttv driver.
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1) General information
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======================
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Please pay close attention to the warning about the bttv module
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options below for the DST card.
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This class of cards has a bt878a chip as the PCI interface.
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The different card drivers require the bttv driver to provide the means
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to access the i2c bus and the gpio pins of the bt8xx chipset.
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1) General informations
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=======================
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2) Compilation rules for Kernel >= 2.6.12
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=========================================
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These drivers require the bttv driver to provide the means to access
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the i2c bus and the gpio pins of the bt8xx chipset.
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Enable the following options:
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Because of this, you need to enable
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"Device drivers" => "Multimedia devices"
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=> "Video For Linux" => "BT848 Video For Linux"
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Furthermore you need to enable
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=> "Video For Linux" => "BT848 Video For Linux"
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"Device drivers" => "Multimedia devices" => "Digital Video Broadcasting Devices"
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=> "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards"
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=> "DVB for Linux" "DVB Core Support" "Nebula/Pinnacle PCTV/TwinHan PCI Cards"
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2) Loading Modules
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==================
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3) Loading Modules, described by two approaches
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===============================================
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In general you need to load the bttv driver, which will handle the gpio and
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i2c communication for us, plus the common dvb-bt8xx device driver.
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The frontends for Nebula (nxt6000), Pinnacle PCTV (cx24110) and
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TwinHan (dst) are loaded automatically by the dvb-bt8xx device driver.
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i2c communication for us, plus the common dvb-bt8xx device driver,
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which is called the backend.
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The frontends for Nebula DigiTV (nxt6000), Pinnacle PCTV Sat (cx24110),
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TwinHan DST + clones (dst and dst-ca) are loaded automatically by the backend.
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For further details about TwinHan DST + clones see /Documentation/dvb/ci.txt.
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3a) Nebula / Pinnacle PCTV
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3a) The manual approach
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-----------------------
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Loading modules:
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modprobe bttv
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modprobe dvb-bt8xx
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Unloading modules:
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modprobe -r dvb-bt8xx
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modprobe -r bttv
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3b) The automatic approach
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--------------------------
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$ modprobe bttv (normally bttv is being loaded automatically by kmod)
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$ modprobe dvb-bt8xx (or just place dvb-bt8xx in /etc/modules for automatic loading)
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If not already done by installation, place a line either in
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/etc/modules.conf or in /etc/modprobe.conf containing this text:
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alias char-major-81 bttv
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Then place a line in /etc/modules containing this text:
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dvb-bt8xx
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3b) TwinHan and Clones
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--------------------------
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$ modprobe bttv i2c_hw=1 card=0x71
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$ modprobe dvb-bt8xx
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$ modprobe dst
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The value 0x71 will override the PCI type detection for dvb-bt8xx,
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which is necessary for TwinHan cards.
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If you're having an older card (blue color circuit) and card=0x71 locks
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your machine, try using 0x68, too. If that does not work, ask on the
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mailing list.
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The DST module takes a couple of useful parameters:
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a. verbose takes values 0 to 5. These values control the verbosity level.
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b. debug takes values 0 and 1. You can either disable or enable debugging.
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c. dst_addons takes values 0 and 0x20:
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- A value of 0 means it is a FTA card.
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- A value of 0x20 means it has a Conditional Access slot.
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The autodetected values are determined by the "response string"
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of the card, which you can see in your logs:
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e.g.: dst_get_device_id: Recognize [DSTMCI]
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Reboot your system and have fun!
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--
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Authors: Richard Walker, Jamie Honan, Michael Hunold, Manu Abraham, Uwe Bugla
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