ALSA: hda-intel - add special 'hwio' model to bypass initialization

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Using the 'model=hwio' option, the driver bypasses any codec
initialization and the reset procedure for codecs is also
bypassed. This mode is usefull to enable direct access using
hwdep interface (using hdaverb or hda-analyzer tools) and
retain codec setup from BIOS.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>

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This commit is contained in:

Jaroslav Kysela 2010-03-26 10:28:46 +01:00

parent 306ff3e473

commit cd508fe58b

3 changed files with 25 additions and 10 deletions

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5

Documentation/sound/alsa/HD-Audio.txt

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10

sound/pci/hda/hda_codec.c

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20

sound/pci/hda/hda_intel.c

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