NMDevice @nmdevice: the object which received the signal. @arg1: @arg2: @arg3: @parent: @state_changed: @connection_compatible: @get_type_description: @get_hw_address: @get_setting_type: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @autoconnect: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @device: @Returns: @devices: @num_devices: @Returns: @device: @cancellable: @error: @Returns: @device: @cancellable: @callback: @user_data: @device: @result: @error: @Returns: @device: @cancellable: @error: @Returns: @device: @cancellable: @callback: @user_data: @device: @result: @error: @Returns: @device: @connections: @Returns: @device: @connection: @Returns: @device: @connection: @error: @Returns: @device: @Returns: