[alsa-devel] Signaling user-space through kcontrol

Vinod Koul vinod.koul at linux.intel.com
Wed Sep 28 08:15:44 CEST 2011

On Tue, 2011-09-27 at 23:14 -0700, Patrick Lai wrote:
> Hi Mark,
> The codec I am working on, beside headset detection, also have other
> type of events to be propagated to user space. Per our discussion at
> IPC, there is way to signal user-space through kcontrol. Is it through 
> calling snd_ctl_notify()? What is the ALSA library API to intercept the 
> event? Is there an sample user-space code which gets kcontrol event?
What events do you have in mind?


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