[pulseaudio-discuss] [RFC] Pulseaudio jack sense

[pl bossart]

> 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?