[alsa-devel] [PATCH 1/6] leds: trigger: Introduce audio mute LED trigger

Andy Shevchenko andy.shevchenko at gmail.com
Mon Nov 26 23:58:36 CET 2018


On Mon, Nov 26, 2018 at 7:14 PM Takashi Iwai <tiwai at suse.de> wrote:
>
> This patch adds a new LED trigger for coupling the audio mixer change
> with the LED on laptops or other devices.  Currently there are two
> trigger types, "audio-mute" and "audio-micmute".
>
> The audio driver triggers the LED brightness change via
> ledtrig_audio_set() call with the proper type (either mute or
> mic-mute).  OTOH, the consumers may call ledtrig_audio_get() for the
> initial brightness value that may have been set by the audio driver
> beforehand.
>
> This new stuff will be used by HD-audio codec driver and some platform
> drivers (thinkpad_acpi and dell-laptop, also upcoming huawei-wmi).

> +#include <linux/module.h>

> +#include <linux/init.h>

Only on of above is needed, I think you meant module.h.

-- 
With Best Regards,
Andy Shevchenko


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