em_get_speed_and_duplex
em_get_speed_and_duplex(&sc->hw,
ret_val = em_get_speed_and_duplex(hw, &speed, &duplex);
ret_val = em_get_speed_and_duplex(hw, &speed, &duplex);
ret_val = em_get_speed_and_duplex(hw, &speed, &duplex);
int32_t em_get_speed_and_duplex(struct em_hw *hw, uint16_t *speed, uint16_t *duplex);