r92c_rf_write
sc->sc_rf_write = r92c_rf_write;
void r92c_rf_write(struct rtwn_softc *, int, uint8_t, uint32_t);
r92c_rf_write(sc, i, R92C_RF_IPA, 0x0f406);
r92c_rf_write(sc, i, R92C_RF_IPA, 0x4f406);
r92c_rf_write(sc, i, R92C_RF_IPA, 0x8f406);
r92c_rf_write(sc, i, R92C_RF_IPA, 0xcf406);
sc->sc_rf_write = r92c_rf_write;