309 	struct cras_observer_ops observer_ops;  in register_for_notification()  local
312 	cras_observer_get_ops(client->observer, &observer_ops);  in register_for_notification()
316 		observer_ops.output_volume_changed =  in register_for_notification()
320 		observer_ops.output_mute_changed =  in register_for_notification()
324 		observer_ops.capture_gain_changed =  in register_for_notification()
328 		observer_ops.capture_mute_changed =  in register_for_notification()
332 		observer_ops.nodes_changed =  in register_for_notification()
336 		observer_ops.active_node_changed =  in register_for_notification()
340 		observer_ops.output_node_volume_changed =  in register_for_notification()
344 		observer_ops.node_left_right_swapped_changed =  in register_for_notification()
348 		observer_ops.input_node_gain_changed =  in register_for_notification()
352 		observer_ops.num_active_streams_changed =  in register_for_notification()
361 	empty = cras_observer_ops_are_empty(&observer_ops);  in register_for_notification()
367 			cras_observer_set_ops(client->observer, &observer_ops);  in register_for_notification()
370 		client->observer = cras_observer_add(&observer_ops, client);  in register_for_notification()