bus_dmamap_load_uio
error = bus_dmamap_load_uio(t->_next_window, map, uio, flags);
error = bus_dmamap_load_uio(t->_next_window, map,
return (bus_dmamap_load_uio(sc->sc_dmat, map, uio, flags));
return (bus_dmamap_load_uio(sc->sc_dmat, map, uio, flags));
return (bus_dmamap_load_uio(sc->sc_dmat, map, uio, flags));