[alsa-devel] Realtek ALC268, Acer 4315 ?Use mic port as independent output?

[Takashi Iwai]

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?
> 0x[04,05,09,0a,0b,0c,0d,11,17,1b,1f,20,21,22]

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
numbers.


thanks,

Takashi