Hi Syam, On Wed, Dec 2, 2015 at 7:56 AM, <s.syam@xxxxxxxxxxx> wrote: > ping > > -----Original Message----- > From: Syam Sidhardhan [mailto:s.syam@xxxxxxxxxxx] > Sent: Monday, November 23, 2015 10:32 PM > To: linux-bluetooth@xxxxxxxxxxxxxxx > Cc: s.syam@xxxxxxxxxxx > Subject: [PATCH v0] avdtp: Fix A2DP disconnection with ADVANCED_AUDIO_UUID > only carkit > > Few Carkits Like "VW MI" & "Seat BT AC" will register the ADVANCED AUDIO > UUID rather than A2DP SINK UUID. Once the signalling channel is initiated > by the remote sink device and streaming channel is not yet initiated by > sink, the source will check the remote device SINK UUID to establish the > streaming channel and will close the signalling channel if SINK UUID is not > present. > > In addition to A2DP SINK UUID, this patch checks for the ADVANCED AUDIO > UUID as well. > > Logs: > bluetoothd: > 10:02:31 profiles/audio/a2dp.c:confirm_cb() AVDTP: incoming connect from > E0:75:0A:36:09:FD > 10:02:31 profiles/audio/avdtp.c:avdtp_connect_cb() AVDTP: connected > signaling channel to E0:75:0A:36:09:FD > 10:02:31 profiles/audio/avdtp.c:avdtp_connect_cb() AVDTP imtu=672, omtu=672 > 10:02:31 profiles/audio/avdtp.c:set_disconnect_timer() name : "Seat BT AC" > /* Extra print */ ... > ... > 10:02:32 profiles/audio/avdtp.c:disconnect_timeout() > 10:02:32 profiles/audio/avdtp.c:connection_lost() Disconnected from > E0:75:0A:36:09:FD > 10:02:32 profiles/audio/a2dp.c:channel_remove() chan 0xb7005348 > 10:02:32 profiles/audio/avdtp.c:connection_lost() 0xb7005d48: ref=0 > 10:02:32 profiles/audio/avdtp.c:avdtp_free() 0xb7005d48 > > DB file: > [General] > Name=Seat BT AC > Class=0x340408 > SupportedTechnologies=BR/EDR; > Trusted=false > Blocked=false > Services=0000110c-0000-1000-8000-00805f9b34fb; //AVRCP_TARGET_UUID 0000110d- > 0000-1000-8000-00805f9b34fb; //ADVANCED_AUDIO_UUID I suspect the record is malformed, iirc there was some problem like this with a different device and we end up looking the next UUID or something like that. Btw, I hope this is communicate back to VW and check if they didn't fix this already since it quite a major bug. 0000110e-0000-1000-8000- > 00805f9b34fb; //AVRCP_REMOTE_UUID 0000111e-0000-1000-8000-00805f9b34fb; > //HFP_HS_UUID 0000112f-0000-1000-8000-00805f9b34fb; //PBAP_UUID > --- > profiles/audio/avdtp.c | 6 ++++++ > 1 file changed, 6 insertions(+) > > diff --git a/profiles/audio/avdtp.c b/profiles/audio/avdtp.c index 52ee767.. > ac1939b 100644 > --- a/profiles/audio/avdtp.c > +++ b/profiles/audio/avdtp.c > @@ -1138,6 +1138,12 @@ static gboolean disconnect_timeout(gpointer > user_data) > return FALSE; > } > > + service = btd_device_get_service(session->device, > ADVANCED_AUDIO_UUID); > + if (service && stream_setup) { > + sink_setup_stream(service, session); > + return FALSE; > + } > + > service = btd_device_get_service(session->device, A2DP_SOURCE_UUID); > if (service && stream_setup) { > source_setup_stream(service, session); > -- > 1.7.9.5 > > -- > 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 -- Luiz Augusto von Dentz -- 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
