[pulseaudio-discuss] [RFC] Pulseaudio jack sense

Liam Girdwood lrg at slimlogic.co.uk
Wed Apr 13 00:34:43 PDT 2011

On Tue, 2011-04-12 at 21:58 +0100, Mark Brown wrote:
> On Tue, Apr 12, 2011 at 02:14:04PM -0500, pl bossart wrote:
> > > Jack detect does not use the ALSA kernel subsystem but does instead
> > > use the input subsystem for jack status. It makes sense to create a
> > > new module so we can then use jack detect for non ALSA sound devices.
> > I'm a bit lost here. What are 'non ALSA sound devices'?
> > And to the best of my knowledge these events are only generated by
> > ALSA drivers...
> > Am I missing something here?
> These events can be generated by anything - prior to my implementing the
> ALSA support for this all the implementations in mainline were doing
> this via the gpio-keys driver since they were detecting a microswitch in
> the jack.  I'd expect that non-audio jacks may also end up reporting via
> the same interface (video for example), but I'm not sure if Pulse would
> be interested in anything non-ALSA.

Yeah, this was one of the considerations here along with any OSS audio
cards (as there are still a few OSS drivers upstream).

This can be moved and integrated into module-alsa-card if desired ?


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