bluez_peripheral.py 文件源码

def _find_adapter(self):
        """
        Tries to find a bluetooth adapter with the required functions.
        :return: path to an adapter or None
        """
        required_interfaces = [GATT_MANAGER_IFACE, LE_ADVERTISING_MANAGER_IFACE]
        object_manager = dbus.Interface(self.bus.get_object(BLUEZ_SERVICE_NAME, '/'), DBUS_OM_IFACE)
        objects = object_manager.GetManagedObjects()

        for object_path, properties in objects.items():
            missing_interfaces = [i for i in required_interfaces if i not in properties.keys()]
            if missing_interfaces:
                continue
            return object_path.rsplit('/', 1)[1]

        return None