RT2661_MAX_SCATTER
bus_dma_segment_t segs[RT2661_MAX_SCATTER];
bus_dma_segment_t segs[RT2661_MAX_SCATTER];
bus_dma_segment_t segs[RT2661_MAX_SCATTER];
RT2661_MAX_SCATTER, MCLBYTES, 0, NULL, NULL, &ring->data_dmat);
uint32_t addr[RT2661_MAX_SCATTER];
uint16_t len[RT2661_MAX_SCATTER];