it_readreg
cr = it_readreg(sc, ITD_CONFIG);
sdata = it_readreg(sc, ITD_SENSORTEMPBASE + i);
sdata = it_readreg(sc, ITD_SENSORVOLTBASE + i);
odivisor = ndivisor = divisor = it_readreg(sc, ITD_FAN);
if ((sdata = it_readreg(sc, ITD_SENSORFANBASE + i)) == 0xff) {
u_int8_t it_readreg(struct it_softc *, int);
u_int8_t (*it_readreg)(struct it_softc *, int);