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| author | Takashi Iwai <tiwai@suse.de> | 2020-06-18 14:08:31 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-06-18 14:22:40 +0300 |
| commit | 7cdf8c49b1df0a385db06c4f9a5ba1b16510fdcc (patch) | |
| tree | eb1bdfcc75b8baf62a475a3daaaad8e70a9189e6 /sound/pci/hda/hda_generic.h | |
| parent | bf61c42a446f58eb61b7af05e9ff0b79aba348b6 (diff) | |
| download | linux-7cdf8c49b1df0a385db06c4f9a5ba1b16510fdcc.tar.xz | |
ALSA: hda: generic: Add a helper for mic-mute LED with LED classdev
A new helper, snd_hda_gen_add_micmute_led_cdev(), is introduced here
for creating a LED classdev and setting up the hook to the capture
control for controlling the mic-mute LED to follow the capture switch
change. This will replace the existing users of
snd_hda_gen_add_micmute_led() in later patches.
Also, introduce a new kconfig CONFIG_SND_HDA_GENERIC_LEDS, to indicate
the usage of mute / mic-mute LED helpers. It's selected by the codec
drivers (Realtek, Conexant and Sigmatel), while it selects the
necessary LED class dependencies.
Tested-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Link: https://lore.kernel.org/r/20200618110842.27238-3-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_generic.h')
| -rw-r--r-- | sound/pci/hda/hda_generic.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_generic.h b/sound/pci/hda/hda_generic.h index fb9f1a90238b..f56bc8da20b2 100644 --- a/sound/pci/hda/hda_generic.h +++ b/sound/pci/hda/hda_generic.h @@ -8,6 +8,8 @@ #ifndef __SOUND_HDA_GENERIC_H #define __SOUND_HDA_GENERIC_H +#include <linux/leds.h> + /* table entry for multi-io paths */ struct hda_multi_io { hda_nid_t pin; /* multi-io widget pin NID */ @@ -357,5 +359,8 @@ int snd_hda_gen_add_micmute_led(struct hda_codec *codec, void (*hook)(struct hda_codec *)); void snd_hda_gen_fixup_micmute_led(struct hda_codec *codec, const struct hda_fixup *fix, int action); +int snd_hda_gen_add_micmute_led_cdev(struct hda_codec *codec, + int (*callback)(struct led_classdev *, + enum led_brightness)); #endif /* __SOUND_HDA_GENERIC_H */ |