SB_RIGHT
sc->gain[port][SB_RIGHT]);
sbdsp_mix_write(sc, SB16P_L_TO_R(src), sc->gain[port][SB_RIGHT]);
sc->gain[cp->dev][SB_RIGHT] = rgain;
sc->gain[cp->dev][SB_RIGHT];
printf(" %u,%u", sc->gain[i][SB_LEFT], sc->gain[i][SB_RIGHT]);
sc->gain[i][SB_LEFT] = sc->gain[i][SB_RIGHT] = v;