SENSOR_FAN_SYS
sc->sc_sensor[SENSOR_FAN_SYS].state = ENVSYS_SINVALID;
sc->sc_sensor[SENSOR_FAN_SYS].units = ENVSYS_INTEGER;
sc->sc_sensor[SENSOR_FAN_SYS].flags = ENVSYS_FMONNOTSUPP;
strlcpy(sc->sc_sensor[SENSOR_FAN_SYS].desc,
sc->sc_sme, &sc->sc_sensor[SENSOR_FAN_SYS]);