[alsa-devel] HDA Analyzer
perex at perex.cz
Fri Nov 28 17:32:05 CET 2008
On Fri, 28 Nov 2008, Takashi Iwai wrote:
> At Fri, 28 Nov 2008 17:08:16 +0100 (CET),
> Jaroslav Kysela wrote:
> > On Fri, 28 Nov 2008, Takashi Iwai wrote:
> > > > > Node 0x22 [Audio Mixer] wcaps 0x20010f: Stereo Amp-In Amp-Out
> > > > > Amp-In caps: ofs=0x00, nsteps=0x00, stepsize=0x00, mute=1
> > > > > Amp-In vals: [0x00 0x00] [0x80 0x80] [0x00 0x00] [0x00 0x00] [0x00 0x00] [0x80 0x80] [0x80 0x80] [0x80 0x80] [0x80 0x80]
> > > > > Amp-Out caps: N/A
> > > > > Amp-Out vals: [0x00 0x00]
> > > > ^^^^^^^^^^^
> > > >
> > > > It looks wrong, but I'm not a big expert for HDA codecs. Are amp values
> > > > available/writable when caps are N/A?
> > >
> > > There is a global amp-cap definition.
> > OK, so it would be better to show the global amp-cap definition in the
> > GUI with a "copy" identification. Thanks.
> Not really. The amp-caps in each node show the capability overrides.
> If you copy the output, you don't know whether it's an override
> (although the same value) or a local one.
I put ' (Global)' suffix to the frame label when global caps are used in
my local source tree. So it should be clear for users.
Jaroslav Kysela <perex at perex.cz>
Linux Kernel Sound Maintainer
ALSA Project, Red Hat, Inc.
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