atl1c_get_speed_and_duplex
if (atl1c_get_speed_and_duplex(hw, &speed,
int atl1c_get_speed_and_duplex(struct atl1c_hw *hw, u16 *speed, u16 *duplex);
err = atl1c_get_speed_and_duplex(hw, &speed, &duplex);