Hi Mark,
On Sun, Jul 21, 2013 at 5:01 PM, Mark Brown broonie@kernel.org wrote:
On Fri, Jul 19, 2013 at 05:59:22PM -0700, Felipe F. Tonello wrote:
From: "Felipe F. Tonello" ftonello@cercacor.com
It adds soc jack support for alsa kcontrol.
This support is necessary since the new kcontrol is used by user-space daemons, such as PulseAudio(>=2.0), to do jack detection.
Signed-off-by: Felipe F. Tonello ftonello@cercacor.com
include/sound/soc.h | 1 + sound/soc/Kconfig | 1 + sound/soc/soc-jack.c | 22 ++++++++++++++++++++++ 3 files changed, 24 insertions(+)
No, this makes no sense at all as an ASoC specific feature - it should be a standard feature of ALSA jacks. The whole point of having ALSA core infrastructure for jacks is to avoid having to go round doing make work stuff like this.
I agree. I added as a ASoC feature because I followed the example of HDA implementation.
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.
At least the only daemon that I know that supports jack detection, which is PulseAudio, uses this new ALSA KControl for Jacks.
Regards, Felipe Tonello