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HID: logitech-hidpp: document sysfs interface

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Signed-off-by: Aishwarya Pant <aishpant@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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Aishwarya Pant 2018-03-02 18:46:53 +05:30 committed by Jiri Kosina
parent b9b7a86fc1
commit 09f3fe40f5
1 changed files with 19 additions and 0 deletions
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Documentation/ABI/testing/sysfs-driver-hid-logitech-hidpp Normal file
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What: /sys/bus/hid/drivers/logitech-hidpp-device/<dev>/range
Date: Jan, 2016
KernelVersion: 4.6
Contact: linux-input@vger.kernel.org
Description:
(RW) This attribute controls the amount of 'turn' permitted in
Logitech G920 wheel. Reading from the file shows the current
range of the steering wheel. Writing a value within the min and
max boundary sets the range of the wheel.
What: /sys/bus/hid/drivers/logitech-hidpp-device/<dev>/builtin_power_supply
Date: Apr, 2017
KernelVersion: 4.12
Contact: linux-input@vger.kernel.org
Description:
Presence of this file indicates that HID++ driver is capable of
handling battery properties in the kernel. This way, upower can
add a udev rule to decide whether or not it should use the
internal unifying support or the generic kernel one.