ALSA: hda - Support auto-mic switching with IDT/STAC codec

Support the automatic mic-switching with some devices with IDT/STAC
codecs.  The condition is that the device has only two inputs, one
for an external mic and one for an internal mic.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2009-07-29 14:32:56 +02:00
commit 3d21d3f7e7