mdiobb_write_c45
res = mdiobb_write_c45(bus, phy, devad, reg, val);
ret = mdiobb_write_c45(bus, phy, devad, reg, val);
EXPORT_SYMBOL(mdiobb_write_c45);
bus->write_c45 = mdiobb_write_c45;
int mdiobb_write_c45(struct mii_bus *bus, int devad, int phy, int reg, u16 val);