Re: [RFC] [Patch 1/2] Add virtual master control

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On Sat, Mar 22, 2008 at 03:15:51PM -0400, Daniel Jacobowitz wrote:
> On Sat, Mar 22, 2008 at 05:31:21PM +0100, Takashi Iwai wrote:
> > Thanks.  This kind of change is basically good to apply, I think, but
> > a couple of things related are in my mind:
> > 
> > - other AC97 codecs need similar hacks, so it could be done
> >   cleaner (in a more generic way) than in each patch_*()?
> > - headphone and line-out have the similar issue - it's handled as a
> >   bind-control right now, though
> > - what about if the device actually uses only two channels although
> >   codec supports more than two?  Then the additional master control
> >   makes little sense.  But, we have no way to know it from the codec
> >   itself.  Another quirk table?  That's to be avoided...
> > 
> > Since this is a non-urgent fix and I'll be on vacation for three weeks
> > from tomorrow, I'd like to keep this pending unless other developers
> > want to put this in.  Is it OK?
> 
> Fine with me.  I don't think I can make broader changes than this
> kind, because I don't know much about AC97; maybe there can be a flag
> on recognized codecs saying which channels the front volume really
> controls?
> 
> I noticed that the PCM mixer also only affected my front speakers.

Hi Takashi,

Have you had another chance to look at this?

-- 
Daniel Jacobowitz
CodeSourcery
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