DR_ENTITY_SENSE
rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
rc = rtas_call(token, 2, 2, state, DR_ENTITY_SENSE,
return rtas_get_sensor(DR_ENTITY_SENSE, slot->index, state);