2 * Copyright (C) 2006 Michael Brown <mbrown@fensystems.co.uk>.
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2 of the
7 * License, or any later version.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
20 FILE_LICENCE ( GPL2_OR_LATER );
24 #include <ipxe/iobuf.h>
25 #include <ipxe/netdevice.h>
33 static int null_open ( struct net_device *netdev __unused ) {
37 static void null_close ( struct net_device *netdev __unused ) {
41 static int null_transmit ( struct net_device *netdev __unused,
42 struct io_buffer *iobuf __unused ) {
46 static void null_poll ( struct net_device *netdev __unused ) {
50 static void null_irq ( struct net_device *netdev __unused,
51 int enable __unused ) {
55 struct net_device_operations null_netdev_operations = {
58 .transmit = null_transmit,