#include <linux/usb/usbnet.h>
/* datasheet:
- http://www.davicom.com.tw/big5/download/Data%20Sheet/DM9601-DS-P01-930914.pdf
+ http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
*/
/* control requests */
static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
{
int ret;
+ u8 mac[ETH_ALEN];
ret = usbnet_get_endpoints(dev, intf);
if (ret)
udelay(20);
/* read MAC */
- if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr) < 0) {
+ if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) {
printk(KERN_ERR "Error reading MAC address\n");
ret = -ENODEV;
goto out;
}
+ /*
+ * Overwrite the auto-generated address only with good ones.
+ */
+ if (is_valid_ether_addr(mac))
+ memcpy(dev->net->dev_addr, mac, ETH_ALEN);
+
/* power up phy */
dm_write_reg(dev, DM_GPR_CTRL, 1);
dm_write_reg(dev, DM_GPR_DATA, 0);