[alsa-devel] Question about snd_mixer_selem_get_playback_dB_range()
tanu.kaskinen at digia.com
Mon Mar 21 15:44:55 CET 2011
On Mon, 2011-03-21 at 16:38 +0200, Clemens Ladisch wrote:
> Tanu Kaskinen wrote:
> > On Mon, 2011-03-21 at 15:43 +0200, Raymond Yau wrote:
> > > AFAIK , only those STAC920x codec has SND_CTL_TLV_DB_GAIN_MUTE
> > Also some broken HDA cards,
> Where "some" = "those that use a STAC920x codec".
Ah, ok :D
> > What is not any driver bug?
> That the hardware reported a wrong dB value for the lowest volume
> setting. The latest driver has a workaround.
> > Is it a bug in alsa (the driver or alsa-lib or whatever) if
> > snd_mixer_selem_get_playback_dB_range() returns something else than
> > SND_CTL_TLV_DB_GAIN_MUTE as the min gain, if the lowest volume step for
> > the element is mute?
Thank you for the answer!
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