greybus: Documentation: Update sysfs-bus-greybus
The file names here weren't in sync with what we have today and the updates give a better picture of the same. Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
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Viresh Kumar
Greg Kroah-Hartman
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@ -1,46 +1,54 @@
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What: /sys/bus/greybus/device/endo
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What: /sys/bus/greybus/device/endoE
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The "root" endo for the Greybus device tree. XXX is
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replaced with the numeric value of the endo layout
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scheme as documented in the ARA Module Developer Kit.
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The "root" endo devices for the Greybus device tree. E
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is replaced with a 2 byte number representing the endo,
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mostly 0.
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What: /sys/bus/greybus/device/endo/id
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What: /sys/bus/greybus/device/endoE/id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The Endo ID, which is a 2-byte hexadecimal value
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defined by the the Endo layout scheme, documented in
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defined by the Endo layout scheme, documented in
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the ARA Module Developer Kit.
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What: /sys/bus/greybus/device/endo/ap_intf_id
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What: /sys/bus/greybus/device/endoE/ap_intf_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The AP interface ID, a small non-zero integer which
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The AP interface ID, a 1-byte non-zero integer which
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defines the position of the AP module on the Endo.
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The interface positions are defined in the ARA
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Module Developer Kit.
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What: /sys/bus/greybus/device/endo/svc/serial_number
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What: /sys/bus/greybus/device/endoE/svc/serial_number
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The serial number of the SVC device
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What: /sys/bus/greybus/device/endo/svc/version
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What: /sys/bus/greybus/device/endoE/svc/version
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The version number of the firmware in the SVC device.
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What: /sys/bus/greybus/device/endo/../epm
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What: /sys/bus/greybus/device/endoE:M
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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A module slot on the endoE, M is replaced by a 1-byte
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number representing the module slot.
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What: /sys/bus/greybus/device/endoE:M/epm
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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@ -50,7 +58,7 @@ Description:
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Writing 1 to it turns it on, writing 0 to it turns it
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off. Reading the value returns if it is on or off.
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What: /sys/bus/greybus/device/endo/.../power_control
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What: /sys/bus/greybus/device/endoE:M/power_control
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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@ -60,7 +68,7 @@ Description:
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to the module, writing 0 to it turns power off to the
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module. Reading the value returns if it is on or off.
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What: /sys/bus/greybus/device/endo/.../present
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What: /sys/bus/greybus/device/endoE:M/present
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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@ -70,49 +78,108 @@ Description:
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This is read-only, 1 means a module is present, 0 means
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no module is present.
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What: /sys/bus/greybus/device/.../product
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What: /sys/bus/greybus/device/endoE:M:I
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Product ID of a Greybus interface block.
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An Interface I on the module slot M on the endoE, I is
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replaced by a 1-byte number representing the interface.
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What: /sys/bus/greybus/device/.../product_string
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Product ID string of a Greybus interface block.
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What: /sys/bus/greybus/device/.../unique_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Unique ID of a Greybus interface block.
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What: /sys/bus/greybus/device/.../vendor
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Vendor ID of a Greybus interface block.
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What: /sys/bus/greybus/device/.../vendor_string
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Vendor ID string of a Greybus interface block.
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What: /sys/bus/greybus/device/.../device_id
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What: /sys/bus/greybus/device/endoE:M:I/device_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The device ID of a Greybus interface block.
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What: /sys/bus/greybus/device/.../state
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What: /sys/bus/greybus/device/endoE:M:I/product
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Product ID of a Greybus interface block.
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What: /sys/bus/greybus/device/endoE:M:I/product_string
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Product ID string of a Greybus interface block.
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What: /sys/bus/greybus/device/endoE:M:I/unique_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Unique ID of a Greybus interface block.
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What: /sys/bus/greybus/device/endoE:M:I/vendor
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Vendor ID of a Greybus interface block.
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What: /sys/bus/greybus/device/endoE:M:I/vendor_string
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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Vendor ID string of a Greybus interface block.
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What: /sys/bus/greybus/device/endoE:M:I:B
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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A bundle B on the Interface I, B is replaced by a 1-byte
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number representing the bundle.
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What: /sys/bus/greybus/device/endoE:M:I:B/class
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The greybus class of the bundle B.
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What: /sys/bus/greybus/device/endoE:M:I:B/state
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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A bundle has a state that is managed by the userspace
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Endo process. This file allows that Endo to signal
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other Android HALs that the state of the bundle has
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changed to a specific value. When written to, any
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process watching the file will be woken up, and the new
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value can be read. It's a "poor-man's IPC", yes, but
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simplifies the Android userspace code immensely.
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What: /sys/bus/greybus/device/endoE:M:I:B:C
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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A cport C within bundle B, C is replaced by a 2-byte
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number representing the cport.
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What: /sys/bus/greybus/device/endoE:M:I:B:C/ap_cport_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The cport ID of the AP, to which cport of the module is
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connected.
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What: /sys/bus/greybus/device/endoE:M:I:B:C/protocol_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The protocol ID of a Greybus cport.
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What: /sys/bus/greybus/device/endoE:M:I:B:C/state
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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@ -125,31 +192,3 @@ Description:
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2 - enabled
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3 - error
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4 - destroying
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What: /sys/bus/greybus/device/.../ap_cport_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The cport ID of the AP, to which cport of the module is
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connected.
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What: /sys/bus/greybus/device/.../protocol_id
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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The protocol ID of a Greybus connection.
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What: /sys/bus/greybus/device/.../state
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Date: October 2015
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KernelVersion: 4.XX
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Contact: Greg Kroah-Hartman <greg@kroah.com>
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Description:
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A bundle has a state that is managed by the userspace
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Endo process. This file allows that Endo to signal
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other Android HALs that the state of the bundle has
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changed to a specific value. When written to, any
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process watching the file will be woken up, and the new
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value can be read. It's a "poor-man's IPC", yes, but
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simplifies the Android userspace code immensely.
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