CWFG_SENSOR_VCELL
strlcpy(sc->sc_sensor[CWFG_SENSOR_VCELL].desc, "battery voltage",
sizeof(sc->sc_sensor[CWFG_SENSOR_VCELL].desc));
sc->sc_sensor[CWFG_SENSOR_VCELL].type = SENSOR_VOLTS_DC;
sc->sc_sensor[CWFG_SENSOR_VCELL].flags = SENSOR_FINVALID;
sensor_attach(&sc->sc_sensordev, &sc->sc_sensor[CWFG_SENSOR_VCELL]);
sc->sc_sensor[CWFG_SENSOR_VCELL].flags |= SENSOR_FINVALID;
sc->sc_sensor[CWFG_SENSOR_VCELL].value =
sc->sc_sensor[CWFG_SENSOR_VCELL].flags &= ~SENSOR_FINVALID;