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| author | Takashi Iwai <tiwai@suse.de> | 2013-02-19 17:12:42 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2013-03-07 18:29:52 +0100 |
| commit | 967303dabc22335e83c6ee4a9e0684a7c05da976 (patch) | |
| tree | f94d11ae35522d65fb437812ca6190a31775bcfd /Documentation/sound | |
| parent | ALSA: snd-usb-caiaq: fix smatch warnings (diff) | |
| download | linux-967303dabc22335e83c6ee4a9e0684a7c05da976.tar.xz linux-967303dabc22335e83c6ee4a9e0684a7c05da976.zip | |
ALSA: hda - Add the generic Headphone Mic feature
This patch improves the generic parser code to allow to set up the
headphone jack as a mic input. User can enable this feature by giving
hp_mic hint string.
The former shared hp/mic feature for the single built-in mic is still
retained. This detection can be disabled now via hp_mic_detect hint
string, too.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'Documentation/sound')
| -rw-r--r-- | Documentation/sound/alsa/HD-Audio.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt index d4faa63ff352..77e176a35ce1 100644 --- a/Documentation/sound/alsa/HD-Audio.txt +++ b/Documentation/sound/alsa/HD-Audio.txt @@ -466,6 +466,9 @@ The generic parser supports the following hints: - add_in_jack_modes (bool): add "xxx Jack Mode" enum controls to each input jack for allowing to change the mic bias vref - power_down_unused (bool): power down the unused widgets +- add_hp_mic (bool): add the headphone to capture source if possible +- hp_mic_detect (bool): enable/disable the hp/mic shared input for a + single built-in mic case; default true - mixer_nid (int): specifies the widget NID of the analog-loopback mixer |