LCG_FIFO_SIZE
err = bus_dmamem_alloc(va->va_dmat, LCG_FIFO_SIZE,
err = bus_dmamem_map(va->va_dmat, &seg, rseg, LCG_FIFO_SIZE,
err = bus_dmamap_create(va->va_dmat, LCG_FIFO_SIZE, rseg,
LCG_FIFO_SIZE, 0, BUS_DMA_NOWAIT, &sc->sc_dm);
bus_dmamem_unmap(va->va_dmat, fifo_mem_vaddr, LCG_FIFO_SIZE);
LCG_FIFO_SIZE, NULL, BUS_DMA_NOWAIT);
bus_dmamem_unmap(va->va_dmat, fifo_mem_vaddr, LCG_FIFO_SIZE);