ALSA: hda - Check connectivity for auto-mic of Realtek codecs

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Some Realtek codecs don't provide the full connections for certain pins
from each ADC; e.g. ACL662/ALC272 gives only one of two digital-mic pins
for each ADC.  Thus, depending on the digital mic pin, the ADC/MUX to be
used has to be chosen properly.

This patch adds the check of the connectivity of pins at auto-mic mode.
If no proper connectivity is found, auto_mic flag is turned off to be
sure.

Also the mux_idx is determined during this check so it won't be checked
in the unsol event any more.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

...

This commit is contained in:

Takashi Iwai 2009-08-11 09:47:30 +02:00

parent 52b5deefbb

commit b59bdf3b0c

1 changed files with 51 additions and 32 deletions

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sound/pci/hda/patch_realtek.c

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