Hi Edmund, >Hello, > >my attempts to register a GATT service via DBus from Java have so far >been unsuccessful. The GattManager1.RegisterService method does not >return any reply, instead I simply get this timeout exception: >Exception in thread "main" org.freedesktop.DBus$Error$ >NoReply: No reply within specified time > As I understand, RegisterService DBUS method in gatt-database replies back to client only when client is fully ready. It happens when service is successfully created by gatt-database and all managed objects are successfully retrieved from client service and parsed by gdbus/client.c. >Also, all I see in the logs is the registration attempt, but no error: >Aug 11 14:42:02 raspberrypi bluetoothd[5466]: >src/gatt-database.c:manager_register_service() Registering service - >path: /com/lilandit/iventcloud/skg/service > This print only only suggests that external service is created by gatt-database >Introspection of the service (with mdbus2 tool) shows this info (which >matches the specs as far as a DBus noob like I can tell): >[METHOD] org.bluez.GattService1.GetPrimary() -> (b:arg_0) >[METHOD] org.bluez.GattService1.GetDevice() -> (o:arg_0) >[METHOD] org.bluez.GattService1.GetUUID() -> (s:arg_0) >[METHOD] org.bluez.GattService1.GetCharacteristics() -> (ao:arg_0) >[METHOD] org.bluez.GattService1.GetIncludes() -> (ao:arg_0) >[METHOD] org.freedesktop.DBus.Introspectable.Introspect() -> (s:arg_0) >[METHOD] org.freedesktop.DBus.Peer.Ping() -> () > >The implementation of the service is incomplete (same applies to the >ObjectManager registered at "/"), however I was expecting to at least >get some feedback on registration and possibly see some of the service >methods being called at this point. Instead I get nothing. > >Any ideas what may be wrong or where I should be looking for the cause? > According to GATT API doc, client service should export ObjectManager interface on its client root path. If this is not done, then I think GetManagedObjects call from gdbus/client will fail and client ready will not be invoked and possibly DBUS timeout occurs. Is your service exporting ObjectManager interface on service root path? >Kind regards, > Edmund > >PS: I'm using BlueZ 5.32 -- 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
