| bus_space_read_{1,2,4,8} | *val = *reg; |
| bus_space_write_{1,2,4,8} | *reg = *val; |
| bus_space_read_multi_{1,2,4,8} | while (cnt--) *val++ = *reg; |
| bus_space_write_multi_{1,2,4,8} | while (cnt--) *reg = *val++; |
| bus_space_read_region_{1,2,4,8} | while (cnt--) *val++ = *reg++; |
| bus_space_write_region_{1,2,4,8} | while (cnt--) *reg++ = *val++; |
| bus_space_set_multi_{1,2,4,8} | while (cnt--) *reg = *val; |
| bus_space_set_region_{1,2,4,8} | while (cnt--) *reg++ = *val; |