CFG2
cfg[1] = snd_cmi8328_cfg_read(port, CFG2);
snd_cmi8328_cfg_write(port, CFG2, cfg[1]);
snd_cmi8328_cfg_write(port, CFG2, 0); /* disable CDROM and MPU401 */
snd_cmi8328_cfg_write(port, CFG2, val);
snd_cmi8328_cfg_write(cmi->port, CFG2, 0);