SF_CDTXCSYNC      723 dev/ic/aic6915.c 		SF_CDTXCSYNC(sc, consumer, BUS_DMASYNC_POSTREAD);
SF_CDTXCSYNC     1040 dev/ic/aic6915.c 		SF_CDTXCSYNC(sc, i, BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);