struct sg_table tx_sgt;
int rx_nents;
int tx_nents;
- void *dummy;
atomic_t dma_running;
/* Current message transfer state info */
void *rx;
void *rx_end;
int dma_mapped;
- size_t rx_map_len;
- size_t tx_map_len;
u8 n_bytes;
int (*write)(struct driver_data *drv_data);
int (*read)(struct driver_data *drv_data);