[alsa-devel] alsa-lib: snd_mixer_selem_is_active changes - which event?

[Raymond Yau]

2011/2/16 Clemens Ladisch <clemens at ladisch.de>

> Sebastian H. wrote:
> > I wonder which event mask notifies an application that
> > snd_mixer_selem_is_active() may have changed.
> >
> > SND_CTL_EVENT_MASK_VALUE
> > or
> > SND_CTL_EVENT_MASK_INFO
>
> _VALUE is only for the value itself; all metadata changes
> generate an _INFO event.
>
>
> Regards,
> Clemens
>


Patch which fix the display of active/inactive controls in alsamixer

but the problem both "Headphone Playback Volume" and "Headphone Playback
Switch" are inactive still not solved using the customised dummy.c
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