VAL_TO_SPEED
edata->value_cur = VAL_TO_SPEED(val, sc->sc_fandiv[fan]);
limits->sel_warnmin = VAL_TO_SPEED(val, sc->sc_fandiv[fan]);
edata->value_cur = VAL_TO_SPEED(msb, lsb);
limits->sel_warnmin = VAL_TO_SPEED(val, 0);