Hi, On Fri, Sep 25, 2009, Nick Davies wrote: > OK, but I don't know where the RFCOMM socket is created, audio/headset.c > how can I connect to existing socket? You can't really but you also shouldn't need to. You can request bluetoothd to change the volume using the SetProperty("SpeakerGain", 0-15) method on the org.bluez.Headset interface on the D-Bus object that represents your headset. There's a python script in the bluez source that lets you do it too, e.g: test/test-telephony <remote address> speakergain 10 test/test-telephony <remote address> microphonegain 5 Johan -- To unsubscribe from this list: send the line "unsubscribe linux-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html