(sorry, premature Send of previous message) As I was saying, the two devices have the same name but different MAC addresses. Whether this was related to the problem I am not sure. But simply unpairing the device that would not connect solved the problem. It re-paired the next time my code tried to connect and from then on I could connect to either device without doing any more unpairing.
On Apr 28, 5:03 pm, DonFrench <[email protected]> wrote: > Update to this problem: I discovered that the device that could not > be connected to had been paired at some time in the past. Both > devices have the same name but different MAC > > On Apr 24, 4:30 pm, DonFrench <[email protected]> wrote: > > > > > There is an apparentbugin theBluetoothservice discovery code, as > > has been mentioned by several people on several forums. The upshot is > > that the BluetoothSocket.connect( ) method consistently fails to > > discover a valid SPP service on some devices that are discoverable > > with non-Android devices while it consistently succeeds to discover > > the SPP service on seemingly identical devices. Obviously, the two > > devices are not identical but the fact is that I manufacture two such > > devices and there is nothing obviously different about them. I can > > consistently connect to both devices from a Windows Mobile app. I > > hope that Google will address thisbugin the very near future. I > > will be willing to test any trialbug-fixes on my devices. > > > Here is the relevant log output from the failed attempt: > > > 04-24 15:23:33.268: INFO/ActivityManager(82): Starting activity: > > Intent { cmp=com.thegadgetworks/.DeviceListActivity } > > 04-24 15:23:33.308: DEBUG/DeviceListActivity(8055): doDiscovery() > > 04-24 15:23:33.318: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/7766/ > > hci0 > > 04-24 15:23:33.318: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bluetooth.adapter.action.DISCOVERY_STARTED > > 04-24 15:23:36.608: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Adapter:DeviceFound from /org/bluez/7766/ > > hci0 > > 04-24 15:23:36.638: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bluetooth.device.action.FOUND > > 04-24 15:23:40.368: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/7766/ > > hci0 > > 04-24 15:23:40.368: ERROR/BluetoothService.cpp(82): > > stopDiscoveryNative: D-Bus error in StopDiscovery: > > org.bluez.Error.Failed (Invalid discovery session) > > 04-24 15:23:40.408: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bluetooth.adapter.action.DISCOVERY_FINISHED > > 04-24 15:23:40.418: ERROR/BluetoothService.cpp(82): > > stopDiscoveryNative: D-Bus error in StopDiscovery: > > org.bluez.Error.Failed (Invalid discovery session) > > 04-24 15:23:40.428: ERROR/BluetoothEventLoop.cpp(82): > > onCreateDeviceResult: D-Bus error: org.bluez.Error.AlreadyExists > > (Device already exists) > > 04-24 15:23:40.448: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bleutooth.device.action.UUID > > 04-24 15:23:46.448: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bleutooth.device.action.UUID > > 04-24 15:24:14.168: ERROR/BluetoothService.cpp(82): > > stopDiscoveryNative: D-Bus error in StopDiscovery: > > org.bluez.Error.Failed (Invalid discovery session) > > > And here is the log from when it successfully connected: > > > 04-24 16:09:02.337: INFO/ActivityManager(82): Starting activity: > > Intent { cmp=com.thegadgetworks/.DeviceListActivity } > > 04-24 16:09:02.437: DEBUG/DeviceListActivity(8230): doDiscovery() > > 04-24 16:09:02.457: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/7766/ > > hci0 > > 04-24 16:09:02.477: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bluetooth.adapter.action.DISCOVERY_STARTED > > 04-24 16:09:05.079: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Adapter:DeviceFound from /org/bluez/7766/ > > hci0 > > 04-24 16:09:05.117: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bluetooth.device.action.FOUND > > 04-24 16:09:08.567: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Adapter:PropertyChanged from /org/bluez/7766/ > > hci0 > > 04-24 16:09:08.567: ERROR/BluetoothService.cpp(82): > > stopDiscoveryNative: D-Bus error in StopDiscovery: > > org.bluez.Error.Failed (Invalid discovery session) > > 04-24 16:09:08.607: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bluetooth.adapter.action.DISCOVERY_FINISHED > > 04-24 16:09:08.617: ERROR/BluetoothService.cpp(82): > > stopDiscoveryNative: D-Bus error in StopDiscovery: > > org.bluez.Error.Failed (Invalid discovery session) > > 04-24 16:09:08.877: ERROR/BluetoothEventLoop.cpp(82): event_filter: > > Received signal org.bluez.Device:PropertyChanged from /org/bluez/7766/ > > hci0/dev_00_0C_84_00_72_D2 > > 04-24 16:09:09.167: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bleutooth.device.action.UUID > > 04-24 16:09:14.647: VERBOSE/BluetoothEventRedirector(4213): Received > > android.bleutooth.device.action.UUID > > > Please fix thisbug! Thank you. > > > -- > > You received this message because you are subscribed to the Google > > Groups "Android Developers" group. > > To post to this group, send email to [email protected] > > To unsubscribe from this group, send email to > > [email protected] > > For more options, visit this group > > athttp://groups.google.com/group/android-developers?hl=en > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected] > For more options, visit this group > athttp://groups.google.com/group/android-developers?hl=en -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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