yds_mixer_set_port
int yds_mixer_set_port(void *, mixer_ctrl_t *);
.set_port = yds_mixer_set_port,
yds_mixer_set_port(sc, &ctl);
yds_mixer_set_port(sc, &ctl);
yds_mixer_set_port(sc, &ctl);
yds_mixer_set_port(sc, &ctl);
yds_mixer_set_port(sc, &ctl);
yds_mixer_set_port(sc, &ctl);