With 3.3 merge window opened, and the new jack detection interface scheduled to go in, maybe it's time to talk about the implementation as well. My draft patch is here: http://kernel.ubuntu.com/git?p=diwic/pulseaudio.git;a=commit;h=1f239a9966fe7e43d3c9cb37fedabf31ff7d706e Fetching the jack state is done through the alsa-lib hctl interface, whereas the existing mixer stuff uses the alsa-lib smixer interface, which layers on top of the hctl interface. Right now I've tried to reuse the existing mixer code, which leads to stuff such as: if (fdl->hctl) err = snd_hctl_poll_descriptors_revents(fdl->hctl, fdl->work_fds, fdl->num_fds, &revents); else err = snd_mixer_poll_descriptors_revents(fdl->mixer, fdl->work_fds, fdl->num_fds, &revents); Looks a bit copy-pasted, but I think it is the easiest solution at the moment. It's just five or so places anyway. The other option would be to try to port the entire mixer stuff to use the hctl interface instead of the smixer interface, but I'm not sure I can foresee how much trouble that actually would be, and if we would run in to any regressions. Thoughts? // David
