rktemp_calc_code
int32_t rktemp_calc_code(struct rktemp_softc *, int32_t);
rktemp_calc_code(sc, temp + sc->sc_trim_temp[i]));
rktemp_calc_code(sc, temp + sc->sc_trim_temp[i]));
code = rktemp_calc_code(sc, temp);
rktemp_calc_code(sc, temp + sc->sc_trim_temp[ch]));