[Intel-wired-lan] [PATCH next-queue v1 5/5] igc: Export LEDs
Kurt Kanzenbach
kurt at linutronix.de
Fri Jun 11 11:01:29 UTC 2021
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 at 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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