wireguard-linux/drivers/leds/trigger/ledtrig-audio.c, branch jd/orphan-parallelWireGuard for the Linux kernelhttps://git.zx2c4.com/wireguard-linux/atom/drivers/leds/trigger/ledtrig-audio.c?h=jd%2Forphan-parallel2018-11-28T11:28:30Zleds: trigger: Introduce audio mute LED trigger2018-11-28T11:28:30ZTakashi Iwaitiwai@suse.de2018-11-26T16:47:44Zurn:sha1:faa2541f5b1afa8b6d777a73bc2f27d5c8c98695
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).
Acked-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>