Get the number of elements in the mixer and their element IDs
#include <sys/asoundlib.h> int snd_mixer_elements( snd_mixer_t *handle, snd_mixer_elements_t *elements );
The snd_mixer_elements() function fills the given snd_mixer_elements_t structure with the number of elements in the mixer that the handle was opened on. It also fills in the array of element IDs pointed to by pelements to a limit of elements_size.
|We recommend that you work with mixer groups instead of manipulating the elements directly.|
Before calling snd_mixer_elements(), set the snd_mixer_elements_t structure as follows:
On a successful return, snd_mixer_elements() sets these members:
Zero on success, or a negative value on error.
snd_mixer_eid_t, snd_mixer_element_read(), snd_mixer_element_write(), snd_mixer_elements_t, snd_mixer_sort_eid_table()