mcs7830_set_reg
int ret = mcs7830_set_reg(dev, HIF_REG_ETHERNET_ADDR, ETH_ALEN, addr);
ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
ret = mcs7830_set_reg(dev, HIF_REG_PHY_DATA, 2, &le_val);
ret = mcs7830_set_reg(dev, HIF_REG_PHY_CMD1, 2, cmd);
mcs7830_set_reg(dev, HIF_REG_PAUSE_THRESHOLD,