Get the file descriptors of the events.
#include <audio/audio_manager_event.h>
int audio_manager_get_event_fd(audio_manager_event_context_t *context, int *fd)
The context returned by audio_manager_get_event_context().
The file descriptor. This can be passed to select() or io_notify().
The audio_manager_get_event_fd() function returns the current file descriptors of the events added to the event list.
EOK upon success, negative errno upon failure.