MPII_DF_VOLUME
SET(dev->flags, MPII_DF_VOLUME);
if (dev != NULL && ISSET(dev->flags, MPII_DF_VOLUME)) {
ISSET(sc->sc_devs[i]->flags, MPII_DF_VOLUME))
if (dev && ISSET(dev->flags, MPII_DF_VOLUME))
if (ISSET(flags, MPII_DF_VOLUME)) {