rt2661_bbp_read
static uint8_t rt2661_bbp_read(struct rt2661_softc *, uint8_t);
bbp4 = rt2661_bbp_read(sc, 4);
bbp77 = rt2661_bbp_read(sc, 77);
bbp3 = rt2661_bbp_read(sc, 3);
val = rt2661_bbp_read(sc, 0);
sc->bbp18 = rt2661_bbp_read(sc, 18);
sc->bbp21 = rt2661_bbp_read(sc, 21);
sc->bbp22 = rt2661_bbp_read(sc, 22);
sc->bbp16 = rt2661_bbp_read(sc, 16);
sc->bbp17 = rt2661_bbp_read(sc, 17);
sc->bbp64 = rt2661_bbp_read(sc, 64);
bbp66 = rt2661_bbp_read(sc, 66);