RME32_WCR_MUTE
RME32_WCR_MUTE; /* muting on */
if (rme32->wcreg & RME32_WCR_MUTE) {
val &= ~RME32_WCR_MUTE;
val |= RME32_WCR_MUTE;
rme32->wcreg |= RME32_WCR_MUTE;
rme32->wcreg &= ~RME32_WCR_MUTE;