stmf_set_lu_access
ret = stmf_set_lu_access(lu, STMF_LU_STANDBY);
stret = stmf_set_lu_access((stmf_lu_t *)sl->sl_lu, STMF_LU_STANDBY);
stret = stmf_set_lu_access(lu, STMF_LU_ACTIVE);
stmf_status_t stmf_set_lu_access(stmf_lu_t *lup, uint8_t access_state);