54a19b4d3f
There are some ABI documents that, while they don't generate any warnings, they have issues when parsed by get_abi.pl script on its output result. Address them, in order to provide a clean output. Reviewed-by: Tom Rix <trix@redhat.com> # for fpga-manager Reviewed-By: Kajol Jain<kjain@linux.ibm.com> # for sysfs-bus-event_source-devices-hv_gpci and sysfs-bus-event_source-devices-hv_24x7 Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> #for IIO Acked-by: Oded Gabbay <oded.gabbay@gmail.com> # for Habanalabs Acked-by: Vaibhav Jain <vaibhav@linux.ibm.com> # for sysfs-bus-papr-pmem Acked-by: Cezary Rojewski <cezary.rojewski@intel.com> # for catpt Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com> Acked-by: Ilya Dryomov <idryomov@gmail.com> # for rbd Acked-by: Jonathan Corbet <corbet@lwn.net> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/5bc78e5b68ed1e9e39135173857cb2e753be868f.1604042072.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
65 lines
2.2 KiB
Plaintext
65 lines
2.2 KiB
Plaintext
What: /sys/class/leds/<led>/brightness
|
|
Date: March 2006
|
|
KernelVersion: 2.6.17
|
|
Contact: Richard Purdie <rpurdie@rpsys.net>
|
|
Description:
|
|
Set the brightness of the LED. Most LEDs don't
|
|
have hardware brightness support, so will just be turned on for
|
|
non-zero brightness settings. The value is between 0 and
|
|
/sys/class/leds/<led>/max_brightness.
|
|
|
|
Writing 0 to this file clears active trigger.
|
|
|
|
Writing non-zero to this file while trigger is active changes the
|
|
top brightness trigger is going to use.
|
|
|
|
What: /sys/class/leds/<led>/max_brightness
|
|
Date: March 2006
|
|
KernelVersion: 2.6.17
|
|
Contact: Richard Purdie <rpurdie@rpsys.net>
|
|
Description:
|
|
Maximum brightness level for this LED, default is 255 (LED_FULL).
|
|
|
|
If the LED does not support different brightness levels, this
|
|
should be 1.
|
|
|
|
What: /sys/class/leds/<led>/brightness_hw_changed
|
|
Date: January 2017
|
|
KernelVersion: 4.11
|
|
Description:
|
|
Last hardware set brightness level for this LED. Some LEDs
|
|
may be changed autonomously by hardware/firmware. Only LEDs
|
|
where this happens and the driver can detect this, will have
|
|
this file.
|
|
|
|
This file supports poll() to detect when the hardware changes
|
|
the brightness.
|
|
|
|
Reading this file will return the last brightness level set
|
|
by the hardware, this may be different from the current
|
|
brightness. Reading this file when no hw brightness change
|
|
event has happened will return an ENODATA error.
|
|
|
|
What: /sys/class/leds/<led>/trigger
|
|
Date: March 2006
|
|
KernelVersion: 2.6.17
|
|
Contact: Richard Purdie <rpurdie@rpsys.net>
|
|
Description:
|
|
Set the trigger for this LED. A trigger is a kernel based source
|
|
of LED events.
|
|
|
|
You can change triggers in a similar manner to the way an IO
|
|
scheduler is chosen. Trigger specific parameters can appear in
|
|
/sys/class/leds/<led> once a given trigger is selected. For
|
|
their documentation see `sysfs-class-led-trigger-*`.
|
|
|
|
What: /sys/class/leds/<led>/inverted
|
|
Date: January 2011
|
|
KernelVersion: 2.6.38
|
|
Contact: Richard Purdie <rpurdie@rpsys.net>
|
|
Description:
|
|
Invert the LED on/off state. This parameter is specific to
|
|
gpio and backlight triggers. In case of the backlight trigger,
|
|
it is useful when driving a LED which is intended to indicate
|
|
a device in a standby like state.
|