uaudio_mixer_get_output
output[0] = uaudio_mixer_get_output(iot, 0);
output[1] = uaudio_mixer_get_output(iot, 1);
output[0] = uaudio_mixer_get_output(iot, 0);
output[1] = uaudio_mixer_get_output(iot, 1);
static const struct uaudio_terminal_node *uaudio_mixer_get_output(