[alsa-devel] Realtek ALC268, Acer 4315 ?Use mic port as independent output?
tiwai at suse.de
Sat Nov 1 10:56:33 CET 2008
At Sat, 01 Nov 2008 11:08:38 +1300,
Eliot Blennerhassett wrote:
> Thanks Takashi,
> > The multi streams (not multi channels) aren't supported yet for
> > Realtek codec support codes. So it won't work as is.
> > It's on my TODO list.
> I'm certainly prepared to help with coding or testing (as a personal
> project - no coding style arguments in this case ;)
OK, I'll ask you testing if I change the code for this purpose.
> > A basic framework was already prepared.
> > spec->stream_analog_alt_playback can store the stream setup.
> > But it's not used yet in the codec setup code.
> Is there much missing before it can be used?
The PCM (hd-audio) callbacks have to be created. To co-exist with
the multi-channel setup, we'd need a sort of dynamic channel assignment,
and this also requires some mutex.
It wouldn't be that hard, though.
> BTW do you have any idea about all the vendor-defined NIDs that aren't
> described in the datasheet?
Most of them are for compatibility with other Realtek codecs, I guess,
so that the standard pins and audio widgets are assigned to the same
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