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What: /sys/bus/greybus/device/greybusN
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The "root" greybus device for the Greybus device tree, or bus,
where N is a dynamically assigned 1-based id.
What: /sys/bus/greybus/device/N-I
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
An Interface I on the bus N, where I is the 1-byte interface
ID.
What: /sys/bus/greybus/device/N-I/ddbl1_manufacturer_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Unipro Device Descriptor Block Level 1 manufacturer ID for the
greybus Interface.
What: /sys/bus/greybus/device/N-I/ddbl1_product_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Unipro Device Descriptor Block Level 1 product ID for the
greybus Interface.
What: /sys/bus/greybus/device/N-I/interface_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The ID of a Greybus interface.
What: /sys/bus/greybus/device/N-I/serial_number
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Serial Number of the Greybus interface, represented by a 64 bit
hexadecimal number.
What: /sys/bus/greybus/device/N-I/product_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Product ID of a Greybus interface.
What: /sys/bus/greybus/device/N-I/product_string
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Product ID string of a Greybus interface.
What: /sys/bus/greybus/device/N-I/vendor_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Vendor ID of a Greybus interface.
What: /sys/bus/greybus/device/N-I/vendor_string
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Vendor ID string of a Greybus interface block.
What: /sys/bus/greybus/device/N-I/version
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Interface version represented as <16 bit major number>.<16 bit
minor number>.
What: /sys/bus/greybus/device/N-I/voltage_now
Date: March 2016
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Voltage measurement of the interface in microvolts (uV)
What: /sys/bus/greybus/device/N-I/current_now
Date: March 2016
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Current measurement of the interface in microamps (uA)
What: /sys/bus/greybus/device/N-I/power_now
Date: March 2016
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Power measurement of the interface in microwatts (uW)
What: /sys/bus/greybus/device/N-I.B
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
A bundle B on the Interface I, B is replaced by a 1-byte
number representing the bundle.
What: /sys/bus/greybus/device/N-I.B/bundle_class
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The greybus class of the bundle B.
What: /sys/bus/greybus/device/N-I.B/bundle_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The interface-unique id of the bundle B.
What: /sys/bus/greybus/device/N-I.B/state
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
A bundle has a state that is managed by the userspace
Endo process. This file allows that Endo to signal
other Android HALs that the state of the bundle has
changed to a specific value. When written to, any
process watching the file will be woken up, and the new
value can be read. It's a "poor-man's IPC", yes, but
simplifies the Android userspace code immensely.
What: /sys/bus/greybus/device/N-svc
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The singleton SVC device of bus N.
What: /sys/bus/greybus/device/N-svc/ap_intf_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The AP interface ID, a 1-byte non-zero integer which
defines the position of the AP module on the frame.
The interface positions are defined in the ARA
Module Developer Kit.
What: /sys/bus/greybus/device/N-svc/endo_id
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The Endo ID, which is a 2-byte hexadecimal value
defined by the Endo layout scheme, documented in
the ARA Module Developer Kit.
What: /sys/bus/greybus/device/N-svc/intf_eject
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
Write the number of the interface that you wish to
forcibly eject from the system.
What: /sys/bus/greybus/device/N-svc/version
Date: October 2015
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
The version number of the firmware in the SVC device.
What: /sys/bus/greybus/device/N-svc/watchdog
Date: October 2016
KernelVersion: 4.XX
Contact: Greg Kroah-Hartman <greg@kroah.com>
Description:
If the SVC watchdog is enabled or not. Writing 0 to this
file will disable the watchdog, writing 1 will enable it.
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