Mark,
On Fri, Jul 26, 2013 at 11:54 AM, Mark Brown broonie@kernel.org wrote:
On Fri, Jul 26, 2013 at 11:25:30AM -0700, Felipe F. Tonello wrote:
/* Update ALSA KControl interface */snd_kctl_jack_report((struct snd_card *)jack->kctl->private_data, jack->kctl, !!status);This isn't ideal for multi-function jacks like headsets - it will report a single boolean value for the jack regardless of what's plugged in meaning userpace can't do things like figure out if a headset or headphone is present. It's probably OK for any realistic input button since you're not going to get an input button without other things being present.
The KControl for Jack is boolean anyway. You can check it with "amixer contents". user-space can figure out based on the control name. At least PulseAudio does that way.
What I'd expect to happen here is that for multi function jacks we create a control per function if the controls are valid.
Do you mean based on snd_jack_types?
Felipe Tonello