AC97_REGEXT_FDACRATE
ch->spdreg = (sc->hasvra) ? AC97_REGEXT_FDACRATE : 0;
return (ac97_setrate(via->codec, AC97_REGEXT_FDACRATE, speed));
reg = (ch->dir == PCMDIR_PLAY)? AC97_REGEXT_FDACRATE : AC97_REGEXT_LADCRATE;
case AC97_REGEXT_FDACRATE: