[Intel-wired-lan] [PATCH next-queue v1 5/5] igc: Export LEDs

[Kurt Kanzenbach <kurt@linutronix.de>]

On Fri Jun 11 2021, Paul Menzel wrote:
> Dear Vinicius, dear Kurt,
>
>
> Am 11.06.21 um 02:39 schrieb Vinicius Costa Gomes:
>> From: Kurt Kanzenbach <kurt@linutronix.de>
>> 
>> Each i225 has three LEDs. Export them via the LED class framework.
>
> Very nice. For those not familiar with the LED class framework, could 
> you add one example how to control one of the LEDs?
>
> Also it?d be nice to document, how this was tested.

Each LED is controllable via sysfs. Example:

 $ cd /sys/class/leds/igc_led0
 $ cat brightness      # Current Mode
 $ cat max_brightness  # 15
 $ echo 0 > brightness # Mode 0
 $ echo 1 > brightness # Mode 1

The brightness field here reflects the different LED modes ranging from
0 to 15.

Thanks,
Kurt
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