BGW_SENSOR_YACCEL
sc->sc_sensor[BGW_SENSOR_YACCEL].type = SENSOR_INTEGER;
strlcpy(sc->sc_sensor[BGW_SENSOR_YACCEL].desc, "Y_ACCEL",
sizeof(sc->sc_sensor[BGW_SENSOR_YACCEL].desc));
sc->sc_sensor[BGW_SENSOR_YACCEL].value = (msb << 4) | (lsb >> 4);
sc->sc_sensor[BGW_SENSOR_YACCEL].flags &= ~SENSOR_FINVALID;