On Mon, Jul 22, 2013 at 02:11:44PM -0700, Felipe Tonello wrote: > My question is: Why ALSA Jack support uses evdev input events to > notify user-space? Is there any user-space relying on that? If no, I > would like to change ALSA Jack implementation to only use KControl and > remove specific implementations.
This was the existing kernel API at the time that the code was added - I beleive people had been doing that for simple switches that detect the physical presence of a jack since it looks exactly like a button from a hardware point of view. See the original commit adding the code.
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