ES_1373_SPDIF_THRU
ucontrol->value.integer.value[0] = ensoniq->ctrl & ES_1373_SPDIF_THRU ? 1 : 0;
nval1 = ucontrol->value.integer.value[0] ? ES_1373_SPDIF_THRU : 0;
change = (ensoniq->ctrl & ES_1373_SPDIF_THRU) != nval1;
ensoniq->ctrl &= ~ES_1373_SPDIF_THRU;