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

2011/2/16 Clemens Ladisch clemens@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