If controller is already connected over Bluetooth but was then
plugged-in via USB (eg. to charge battery) there is no need to do
any setup.
if (get_master_bdaddr(fd, &master_bdaddr) < 0)
return;
+ /* This can happen if controller was plugged while already connected
+ * eg. to charge up battery */
+ device = btd_adapter_find_device(adapter, &device_bdaddr);
+ if (device && btd_device_is_connected(device))
+ return;
+
adapter_bdaddr = btd_adapter_get_address(adapter);
if (bacmp(adapter_bdaddr, &master_bdaddr)) {