Thanks Marcel and Luiz My application was always in active discovery mode. After disabling active discovery, auto connect started to work. I have read that this is an issue with linux kernel version < 3.17. Sudeepta On Wed, Apr 5, 2017 at 4:46 PM, Luiz Augusto von Dentz <luiz.dentz@xxxxxxxxx> wrote: > Hi Sudeepta, > > On Wed, Apr 5, 2017 at 4:14 AM, Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote: >> Hi Sudeepta, >> >>> I'm a BlueZ newbie and wanted your help regarding a problem that I'm >>> facing with a BLE project. >>> >>> I'm running BlueZ 5.42 in my linux machine and have written a >>> bluetooth application which communicates with a BLE device. >>> The application uses bluez dbus APIs for pairing and connecting to the >>> BLE device (device-api.txt and adapter-api.txt). >>> The BLE device is programmed to disconnect if left idle and send >>> ADV_DIRECT_IND if woken up. >>> >>> Using hcidump tool, I see that bluetoothd on my machine indeed >>> receives the ADV_DIRECT_IND message from the BLE device. However I'm >>> not able to figure out how my application can be made aware that such >>> an advertisement has been received and it should now reconnect to the >>> BLE device. >>> >>> I do not see any dbus API or signal using which the application can be >>> made aware of this event. >>> >>> Could you suggest me a solution to this? Are there any low level >>> settings/configuration which would make bluetoothd automatically >>> reconnect to the BLE device if it receives an ADV_DIRECT_IND? >> >> the kernel will auto-connect that device if it is in its auto-connect list. I think there are options via D-Bus to enable the auto-connect feature for certain devices. > > The applications needs to register itself with RegisterApplication and > have a matching GattProfile in order for bluetoothd to add a device to > the auto-connect list: > > https://git.kernel.org/pub/scm/bluetooth/bluez.git/tree/doc/gatt-api.txt > > Note, if device.Disconnect is called it will remove the device from > the auto-connect list, in that case device.Connect has to be called > manually in order to add the device back. > > > > -- > 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
