DP83TD510E_LEDS_CFG_1
ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_LEDS_CFG_1,
val = phy_read_mmd(phydev, MDIO_MMD_VEND2, DP83TD510E_LEDS_CFG_1);