[alsa-devel] alsa-lib: snd_mixer_selem_is_active changes - which event?
superquad.vortex2 at gmail.com
Sat Apr 16 04:02:10 CEST 2011
2011/2/16 Sebastian H. <vand2 at gmx.de>
> I wonder which event mask notifies an application that
> snd_mixer_selem_is_active() may have changed.
> or something else?
> I'd be glad for any insights?
qasmixer display the following message when play audio through front device
alsa_callback_hctl_elem: Unknown mask ( 3 )
[EE] snd_hctl_handle_events : Operation not permitted
which event mask "SND_CTL_EVENT_MASK_VALUE" or "SND_CTL_EVENT_MASK_VALUE "
should the mixer application handle first ?
e.g. it is possible that the driver may change access of the control
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