mii_bitbang_ops_t
int mii_bitbang_readreg(device_t dev, mii_bitbang_ops_t ops,
void mii_bitbang_sync(device_t dev, mii_bitbang_ops_t ops);
void mii_bitbang_writereg(device_t dev, mii_bitbang_ops_t ops,
mii_bitbang_readreg(device_t dev, mii_bitbang_ops_t ops, int phy, int reg)
mii_bitbang_writereg(device_t dev, mii_bitbang_ops_t ops, int phy, int reg,
static void mii_bitbang_sendbits(device_t dev, mii_bitbang_ops_t ops,
mii_bitbang_sync(device_t dev, mii_bitbang_ops_t ops)
mii_bitbang_sendbits(device_t dev, mii_bitbang_ops_t ops, uint32_t data,