DM9000数据发送编程: static int dm9000_start_xmit(struct sk_buff *skb, struct net_device *dev) { unsigned long flags; board_info_t *db = netdev_priv(dev); int save_mwr, check_mwr, calc_mwr; //通知协议栈暂停想去动传送数据 netif_stop_queue(dev); //将skb中的数据写入网卡寄存器 iow(db, D…