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| author | Takashi Iwai <tiwai@suse.de> | 2018-11-26 17:47:44 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2018-11-28 12:28:30 +0100 |
| commit | faa2541f5b1afa8b6d777a73bc2f27d5c8c98695 (patch) | |
| tree | 554ede6ec6bc2e5cba43240b633ff0c726f6a270 /drivers/leds/trigger/Kconfig | |
| parent | 9ff01193a20d391e8dbce4403dd5ef87c7eaaca6 (diff) | |
| download | linux-faa2541f5b1afa8b6d777a73bc2f27d5c8c98695.tar.bz2 | |
leds: trigger: Introduce audio mute LED trigger
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>
Diffstat (limited to 'drivers/leds/trigger/Kconfig')
| -rw-r--r-- | drivers/leds/trigger/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/leds/trigger/Kconfig b/drivers/leds/trigger/Kconfig index b76fc3cdc8f8..23cc85e2e0e5 100644 --- a/drivers/leds/trigger/Kconfig +++ b/drivers/leds/trigger/Kconfig @@ -136,4 +136,11 @@ config LEDS_TRIGGER_PATTERN which is a series of tuples, of brightness and duration (ms). If unsure, say N +config LEDS_TRIGGER_AUDIO + tristate "Audio Mute LED Trigger" + help + This allows LEDs to be controlled by audio drivers for following + the audio mute and mic-mute changes. + If unsure, say N + endif # LEDS_TRIGGERS |