> > Does Pulseaudio provide a callback mechanism or any other methods to > > notify application when audio device changes? > > Take a look at > http://www.freedesktop.org/software/pulseaudio/doxygen/subscribe.html > > > I?m working on a policy application that need to know all available > > audio devices (speaker/mike, headphone, Bluetooth headset, HDMI) and > > allow user to manually set the default sink/source/port. > > > > The application need to be notified on headset/HDMI > > connection/disconnection. > > This will need something like David's jack detection work which is not > in master yet. > Thanks a lot for the information, Arun! So after adding David's jack detection patch, the port's available state change will trigger the event "PA_SUBSCRIPTION_EVENT_SOURCE|PA_SUBSCRIPTION_EVENT_CHANGE" and " PA_SUBSCRIPTION_EVENT_SINK|PA_SUBSCRIPTION_EVENT_CHANGE", right? -Mengdong
