Add a headphone output volume regulation change event to the event list.
#include <audio/audio_manager_event.h>
int audio_manager_add_status_hp_output_volume_regulation_change_event(audio_manager_event_context_t *context)
The context returned by audio_manager_get_event_context().
The audio_manager_add_status_hp_output_volume_regulation_change_event() function adds the change event to the event list, which is monitored by calls to audio_manager_get_event().
The function interrupts the audio_manager_get_event() function if it is already being blocked in another thread. The audio_manager_get_event() function is then called to include the new event.
Note that this function is intended for use by system components. Therefore, it is not suitable for all applications.
EOK upon success, negative errno upon failure.