WUF_CFG
ret = lan78xx_write_reg(dev, WUF_CFG(mask_index), 0);
ret = lan78xx_write_reg(dev, WUF_CFG(mask_index),
ret = lan78xx_write_reg(dev, WUF_CFG(mask_index),
ret = lan78xx_write_reg(dev, WUF_CFG(mask_index),