dmac_start_xfer_offset
int dmac_start_xfer_offset(struct dmac_softc *, struct dmac_dma_xfer *,
return dmac_start_xfer_offset(dmac, xf, 0, 0);
dmac_start_xfer_offset(chan->ch_softc, sc->sc_current.xfer,
dmac_start_xfer_offset(chan->ch_softc, sc->sc_current.xfer,