hi,all I read the code of 3c501.c , a network card driver, I found that this driver can only support one card on a host. Because register_netdev() only is called one time when this module initialization. I don't know if my understanding is right. Who can help me and give some explains? thanks harrin - : send the line "unsubscribe linux-net" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html