CMD_STATUS
#define CMD_STATUS 0x38
#define CMD_STATUS cpu_to_le32((CMD_2255 | 0x40))
#define CMD_STATUS 0x0014
CMD_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 49),
#define CMD_STATUS 0x004
CMD_STATUS = offsetof(struct ctrl_reg, cmd_status),
CMD_STATUS = _CMDC(_CMD_DIR_RW, _CMD_VTYPE_ALL, 49),