LS2K_KCS_STS_CMD
#define LS2K_KCS_DATA_MASK (LS2K_KCS_STS_OBF | LS2K_KCS_STS_IBF | LS2K_KCS_STS_CMD)
| FIELD_PREP(LS2K_KCS_STS_CMD, cmd);
sts |= LS2K_KCS_STS_CMD;
sts &= ~LS2K_KCS_STS_CMD;