[alsa-devel] [PATCH] STAC92xx : add support for missing features

[Maxim Levitsky]

2007/8/29, Takashi Iwai <tiwai at suse.de>:
> At Tue, 28 Aug 2007 21:41:32 +0300,
> Maxim Levitsky wrote:
> >
> > > > About 3 (volume-knob), we'd need a bit more checks and tests.  Does
> > > > the volume knob widget work always as a mater control regardless
> > > > whetehr the real hardware component exists or not?  I.e. can we use it
> > > > blindly?
> > According to datasheet, it works, also driver already assumes it there, and sets it to maximum volume
> > see hda_verb stac922x_core_init, hda_verb d965_core_init, hda_verb stac927x_core_init,hda_verb stac9205_core_init
>
> Interesting.  So, writing to the volume knob widget actually works
> just like a normal mixer amp?
Yes, but volumeknob doesn't support standard verbs that amps do, thus
I coded it as a custom control, but generally it is a amp
>
> > > >
> > > > Tobin, Matt, could you test these patches, especially patch 3, with
> > > > your hardwares?  Anyone who has STAC92xx hardwares are welcome for
> > > > testing it, too!
> > > >
> > > >
> > > > Thanks,
> > > >
> > > > Takashi
> > >
> >
> > Hi,
> >
> > Thanks for review, I will fix all things you pointed out, but
> > I am coding against latest linus' kernel tree, and snd_ctl_boolean_mono_info() isn't there, and thus I didn't use it,
> > I will download latest alsa tree, and compile against it
> >
> > But I have a question: can I only complile snd-hda-intel from that tree, and leave kernel's sound core modules?
>
> If you build from alsa-driver tree, then yes, only modules.
>
> You can get use kernel.git perex/alsa.git mm branch for the latest
> ALSA codes, too:
>         http://git.kernel.org/?p=linux/kernel/git/perex/alsa.git;a=shortlog;h=mm
>
>
> thanks,
>
> Takashi
>


Hi,
  Thanks for information, I will send updated patches soon.

Best regards,
       Maxim Levitsky