[kernel] r15537 - dists/sid/linux-2.6/debian/patches/features/all
Ben Hutchings
benh at alioth.debian.org
Thu Apr 22 22:11:12 UTC 2010
Author: benh
Date: Thu Apr 22 22:11:10 2010
New Revision: 15537
Log:
Add ipheth driver for iPhone tethering
Added:
dists/sid/linux-2.6/debian/patches/features/all/ipheth-add.patch
Added: dists/sid/linux-2.6/debian/patches/features/all/ipheth-add.patch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ dists/sid/linux-2.6/debian/patches/features/all/ipheth-add.patch Thu Apr 22 22:11:10 2010 (r15537)
@@ -0,0 +1,638 @@
+Subject: drivers/net/usb: Add new driver ipheth
+Date: Sun, 18 Apr 2010 08:35:16 -0000
+From: Diego Giagio <diego at giagio.com>
+
+Add new driver to use tethering with an iPhone device. After initial submission,
+apply fixes to fit the new driver into the kernel standards.
+
+There are still a couple of minor (almost cosmetic-level) issues, but the driver
+is fully functional right now.
+
+Signed-off-by: L. Alberto Giménez <agimenez at sysvalve.es>
+Signed-off-by: Diego Giagio <diego at giagio.com>
+
+---
+ drivers/net/Makefile | 1 +
+ drivers/net/usb/Kconfig | 12 +
+ drivers/net/usb/Makefile | 1 +
+ drivers/net/usb/ipheth.c | 568 ++++++++++++++++++++++++++++++++++++++++++++++
+ 4 files changed, 582 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/net/usb/ipheth.c
+
+diff --git a/drivers/net/Makefile b/drivers/net/Makefile
+index a583b50..12b280a 100644
+--- a/drivers/net/Makefile
++++ b/drivers/net/Makefile
+@@ -273,6 +273,7 @@ obj-$(CONFIG_USB_RTL8150) += usb/
+ obj-$(CONFIG_USB_HSO) += usb/
+ obj-$(CONFIG_USB_USBNET) += usb/
+ obj-$(CONFIG_USB_ZD1201) += usb/
++obj-$(CONFIG_USB_IPHETH) += usb/
+
+ obj-y += wireless/
+ obj-$(CONFIG_NET_TULIP) += tulip/
+diff --git a/drivers/net/usb/Kconfig b/drivers/net/usb/Kconfig
+index ba56ce4..63be4ca 100644
+--- a/drivers/net/usb/Kconfig
++++ b/drivers/net/usb/Kconfig
+@@ -385,4 +385,16 @@ config USB_CDC_PHONET
+ cellular modem, as found on most Nokia handsets with the
+ "PC suite" USB profile.
+
++config USB_IPHETH
++ tristate "Apple iPhone USB Ethernet driver"
++ default n
++ ---help---
++ Module used to share Internet connection (tethering) from your
++ iPhone (Original, 3G and 3GS) to your system.
++ Note that you need userspace libraries and programs that are needed
++ to pair your device with your system and that understand the iPhone
++ protocol.
++
++ For more information: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
++
+ endmenu
+diff --git a/drivers/net/usb/Makefile b/drivers/net/usb/Makefile
+index 82ea629..edb09c0 100644
+--- a/drivers/net/usb/Makefile
++++ b/drivers/net/usb/Makefile
+@@ -23,4 +23,5 @@ obj-$(CONFIG_USB_NET_MCS7830) += mcs7830.o
+ obj-$(CONFIG_USB_USBNET) += usbnet.o
+ obj-$(CONFIG_USB_NET_INT51X1) += int51x1.o
+ obj-$(CONFIG_USB_CDC_PHONET) += cdc-phonet.o
++obj-$(CONFIG_USB_IPHETH) += ipheth.o
+
+diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
+new file mode 100644
+index 0000000..fd10331
+--- /dev/null
++++ b/drivers/net/usb/ipheth.c
+@@ -0,0 +1,568 @@
++/*
++ * ipheth.c - Apple iPhone USB Ethernet driver
++ *
++ * Copyright (c) 2009 Diego Giagio <diego at giagio.com>
++ * All rights reserved.
++ *
++ * Redistribution and use in source and binary forms, with or without
++ * modification, are permitted provided that the following conditions
++ * are met:
++ * 1. Redistributions of source code must retain the above copyright
++ * notice, this list of conditions and the following disclaimer.
++ * 2. Redistributions in binary form must reproduce the above copyright
++ * notice, this list of conditions and the following disclaimer in the
++ * documentation and/or other materials provided with the distribution.
++ * 3. Neither the name of GIAGIO.COM nor the names of its contributors
++ * may be used to endorse or promote products derived from this software
++ * without specific prior written permission.
++ *
++ * Alternatively, provided that this notice is retained in full, this
++ * software may be distributed under the terms of the GNU General
++ * Public License ("GPL") version 2, in which case the provisions of the
++ * GPL apply INSTEAD OF those given above.
++ *
++ * The provided data structures and external interfaces from this code
++ * are not restricted to be used by modules with a GPL compatible license.
++ *
++ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
++ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
++ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
++ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
++ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
++ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
++ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
++ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
++ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
++ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
++ * DAMAGE.
++ *
++ *
++ * Attention: iPhone device must be paired, otherwise it won't respond to our
++ * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/init.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/netdevice.h>
++#include <linux/etherdevice.h>
++#include <linux/ethtool.h>
++#include <linux/usb.h>
++#include <linux/workqueue.h>
++
++#define USB_VENDOR_APPLE 0x05ac
++#define USB_PRODUCT_IPHONE 0x1290
++#define USB_PRODUCT_IPHONE_3G 0x1292
++#define USB_PRODUCT_IPHONE_3GS 0x1294
++
++#define IPHETH_USBINTF_CLASS 255
++#define IPHETH_USBINTF_SUBCLASS 253
++#define IPHETH_USBINTF_PROTO 1
++
++#define IPHETH_BUF_SIZE 1516
++#define IPHETH_TX_TIMEOUT (5 * HZ)
++
++#define IPHETH_INTFNUM 2
++#define IPHETH_ALT_INTFNUM 1
++
++#define IPHETH_CTRL_ENDP 0x00
++#define IPHETH_CTRL_BUF_SIZE 0x40
++#define IPHETH_CTRL_TIMEOUT (5 * HZ)
++
++#define IPHETH_CMD_GET_MACADDR 0x00
++#define IPHETH_CMD_CARRIER_CHECK 0x45
++
++#define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ)
++#define IPHETH_CARRIER_ON 0x04
++
++static struct usb_device_id ipheth_table[] = {
++ { USB_DEVICE_AND_INTERFACE_INFO(
++ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE,
++ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
++ IPHETH_USBINTF_PROTO) },
++ { USB_DEVICE_AND_INTERFACE_INFO(
++ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G,
++ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
++ IPHETH_USBINTF_PROTO) },
++ { USB_DEVICE_AND_INTERFACE_INFO(
++ USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS,
++ IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
++ IPHETH_USBINTF_PROTO) },
++ { }
++};
++MODULE_DEVICE_TABLE(usb, ipheth_table);
++
++struct ipheth_device {
++ struct usb_device *udev;
++ struct usb_interface *intf;
++ struct net_device *net;
++ struct sk_buff *tx_skb;
++ struct urb *tx_urb;
++ struct urb *rx_urb;
++ unsigned char *tx_buf;
++ unsigned char *rx_buf;
++ unsigned char *ctrl_buf;
++ u8 bulk_in;
++ u8 bulk_out;
++ struct delayed_work carrier_work;
++};
++
++static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags);
++
++static int ipheth_alloc_urbs(struct ipheth_device *iphone)
++{
++ struct urb *tx_urb = NULL;
++ struct urb *rx_urb = NULL;
++ u8 *tx_buf = NULL;
++ u8 *rx_buf = NULL;
++
++ tx_urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (tx_urb == NULL)
++ goto error;
++
++ rx_urb = usb_alloc_urb(0, GFP_KERNEL);
++ if (rx_urb == NULL)
++ goto error;
++
++ tx_buf = usb_buffer_alloc(iphone->udev,
++ IPHETH_BUF_SIZE,
++ GFP_KERNEL,
++ &tx_urb->transfer_dma);
++ if (tx_buf == NULL)
++ goto error;
++
++ rx_buf = usb_buffer_alloc(iphone->udev,
++ IPHETH_BUF_SIZE,
++ GFP_KERNEL,
++ &rx_urb->transfer_dma);
++ if (rx_buf == NULL)
++ goto error;
++
++
++ iphone->tx_urb = tx_urb;
++ iphone->rx_urb = rx_urb;
++ iphone->tx_buf = tx_buf;
++ iphone->rx_buf = rx_buf;
++ return 0;
++
++error:
++ usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf,
++ rx_urb->transfer_dma);
++ usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
++ tx_urb->transfer_dma);
++ usb_free_urb(rx_urb);
++ usb_free_urb(tx_urb);
++ return -ENOMEM;
++}
++
++static void ipheth_free_urbs(struct ipheth_device *iphone)
++{
++ usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
++ iphone->rx_urb->transfer_dma);
++ usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
++ iphone->tx_urb->transfer_dma);
++ usb_free_urb(iphone->rx_urb);
++ usb_free_urb(iphone->tx_urb);
++}
++
++static void ipheth_kill_urbs(struct ipheth_device *dev)
++{
++ usb_kill_urb(dev->tx_urb);
++ usb_kill_urb(dev->rx_urb);
++}
++
++static void ipheth_rcvbulk_callback(struct urb *urb)
++{
++ struct ipheth_device *dev;
++ struct sk_buff *skb;
++ int status;
++ char *buf;
++ int len;
++
++ dev = urb->context;
++ if (dev == NULL)
++ return;
++
++ status = urb->status;
++ switch (status) {
++ case -ENOENT:
++ case -ECONNRESET:
++ case -ESHUTDOWN:
++ return;
++ case 0:
++ break;
++ default:
++ err("%s: urb status: %d", __func__, urb->status);
++ return;
++ }
++
++ len = urb->actual_length;
++ buf = urb->transfer_buffer;
++
++ skb = dev_alloc_skb(NET_IP_ALIGN + len);
++ if (!skb) {
++ err("%s: dev_alloc_skb: -ENOMEM", __func__);
++ dev->net->stats.rx_dropped++;
++ return;
++ }
++
++ skb_reserve(skb, NET_IP_ALIGN);
++ memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN);
++ skb->dev = dev->net;
++ skb->protocol = eth_type_trans(skb, dev->net);
++
++ dev->net->stats.rx_packets++;
++ dev->net->stats.rx_bytes += len;
++
++ netif_rx(skb);
++ ipheth_rx_submit(dev, GFP_ATOMIC);
++}
++
++static void ipheth_sndbulk_callback(struct urb *urb)
++{
++ struct ipheth_device *dev;
++
++ dev = urb->context;
++ if (dev == NULL)
++ return;
++
++ if (urb->status != 0 &&
++ urb->status != -ENOENT &&
++ urb->status != -ECONNRESET &&
++ urb->status != -ESHUTDOWN)
++ err("%s: urb status: %d", __func__, urb->status);
++
++ dev_kfree_skb_irq(dev->tx_skb);
++ netif_wake_queue(dev->net);
++}
++
++static int ipheth_carrier_set(struct ipheth_device *dev)
++{
++ struct usb_device *udev = dev->udev;
++ int retval;
++
++ retval = usb_control_msg(udev,
++ usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
++ IPHETH_CMD_CARRIER_CHECK, /* request */
++ 0xc0, /* request type */
++ 0x00, /* value */
++ 0x02, /* index */
++ dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE,
++ IPHETH_CTRL_TIMEOUT);
++ if (retval < 0) {
++ err("%s: usb_control_msg: %d", __func__, retval);
++ return retval;
++ }
++
++ if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON)
++ netif_carrier_on(dev->net);
++ else
++ netif_carrier_off(dev->net);
++
++ return 0;
++}
++
++static void ipheth_carrier_check_work(struct work_struct *work)
++{
++ struct ipheth_device *dev = container_of(work, struct ipheth_device,
++ carrier_work.work);
++
++ ipheth_carrier_set(dev);
++ schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
++}
++
++static int ipheth_get_macaddr(struct ipheth_device *dev)
++{
++ struct usb_device *udev = dev->udev;
++ struct net_device *net = dev->net;
++ int retval;
++
++ retval = usb_control_msg(udev,
++ usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
++ IPHETH_CMD_GET_MACADDR, /* request */
++ 0xc0, /* request type */
++ 0x00, /* value */
++ 0x02, /* index */
++ dev->ctrl_buf,
++ IPHETH_CTRL_BUF_SIZE,
++ IPHETH_CTRL_TIMEOUT);
++ if (retval < 0) {
++ err("%s: usb_control_msg: %d", __func__, retval);
++ } else if (retval < ETH_ALEN) {
++ err("%s: usb_control_msg: short packet: %d bytes",
++ __func__, retval);
++ retval = -EINVAL;
++ } else {
++ memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN);
++ retval = 0;
++ }
++
++ return retval;
++}
++
++static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags)
++{
++ struct usb_device *udev = dev->udev;
++ int retval;
++
++ usb_fill_bulk_urb(dev->rx_urb, udev,
++ usb_rcvbulkpipe(udev, dev->bulk_in),
++ dev->rx_buf, IPHETH_BUF_SIZE,
++ ipheth_rcvbulk_callback,
++ dev);
++ dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
++
++ retval = usb_submit_urb(dev->rx_urb, mem_flags);
++ if (retval)
++ err("%s: usb_submit_urb: %d", __func__, retval);
++ return retval;
++}
++
++static int ipheth_open(struct net_device *net)
++{
++ struct ipheth_device *dev = netdev_priv(net);
++ struct usb_device *udev = dev->udev;
++ int retval = 0;
++
++ usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM);
++
++ retval = ipheth_carrier_set(dev);
++ if (retval)
++ return retval;
++
++ retval = ipheth_rx_submit(dev, GFP_KERNEL);
++ if (retval)
++ return retval;
++
++ schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
++ netif_start_queue(net);
++ return retval;
++}
++
++static int ipheth_close(struct net_device *net)
++{
++ struct ipheth_device *dev = netdev_priv(net);
++
++ cancel_delayed_work_sync(&dev->carrier_work);
++ netif_stop_queue(net);
++ return 0;
++}
++
++static int ipheth_tx(struct sk_buff *skb, struct net_device *net)
++{
++ struct ipheth_device *dev = netdev_priv(net);
++ struct usb_device *udev = dev->udev;
++ int retval;
++
++ /* Paranoid */
++ if (skb->len > IPHETH_BUF_SIZE) {
++ WARN(1, "%s: skb too large: %d bytes", __func__, skb->len);
++ dev->net->stats.tx_dropped++;
++ dev_kfree_skb_irq(skb);
++ return NETDEV_TX_OK;
++ }
++
++ memcpy(dev->tx_buf, skb->data, skb->len);
++ if (skb->len < IPHETH_BUF_SIZE)
++ memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len);
++
++ usb_fill_bulk_urb(dev->tx_urb, udev,
++ usb_sndbulkpipe(udev, dev->bulk_out),
++ dev->tx_buf, IPHETH_BUF_SIZE,
++ ipheth_sndbulk_callback,
++ dev);
++ dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
++
++ retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
++ if (retval) {
++ err("%s: usb_submit_urb: %d", __func__, retval);
++ dev->net->stats.tx_errors++;
++ dev_kfree_skb_irq(skb);
++ } else {
++ dev->tx_skb = skb;
++
++ dev->net->stats.tx_packets++;
++ dev->net->stats.tx_bytes += skb->len;
++ netif_stop_queue(net);
++ }
++
++ return NETDEV_TX_OK;
++}
++
++static void ipheth_tx_timeout(struct net_device *net)
++{
++ struct ipheth_device *dev = netdev_priv(net);
++
++ err("%s: TX timeout", __func__);
++ dev->net->stats.tx_errors++;
++ usb_unlink_urb(dev->tx_urb);
++}
++
++static struct net_device_stats *ipheth_stats(struct net_device *net)
++{
++ struct ipheth_device *dev = netdev_priv(net);
++ return &dev->net->stats;
++}
++
++static u32 ipheth_ethtool_op_get_link(struct net_device *net)
++{
++ struct ipheth_device *dev = netdev_priv(net);
++ return netif_carrier_ok(dev->net);
++}
++
++static struct ethtool_ops ops = {
++ .get_link = ipheth_ethtool_op_get_link
++};
++
++static const struct net_device_ops ipheth_netdev_ops = {
++ .ndo_open = &ipheth_open,
++ .ndo_stop = &ipheth_close,
++ .ndo_start_xmit = &ipheth_tx,
++ .ndo_tx_timeout = &ipheth_tx_timeout,
++ .ndo_get_stats = &ipheth_stats,
++};
++
++static struct device_type ipheth_type = {
++ .name = "wwan",
++};
++
++static int ipheth_probe(struct usb_interface *intf,
++ const struct usb_device_id *id)
++{
++ struct usb_device *udev = interface_to_usbdev(intf);
++ struct usb_host_interface *hintf;
++ struct usb_endpoint_descriptor *endp;
++ struct ipheth_device *dev;
++ struct net_device *netdev;
++ int i;
++ int retval;
++
++ netdev = alloc_etherdev(sizeof(struct ipheth_device));
++ if (!netdev)
++ return -ENOMEM;
++
++ netdev->netdev_ops = &ipheth_netdev_ops;
++ netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
++ strcpy(netdev->name, "wwan%d");
++
++ dev = netdev_priv(netdev);
++ dev->udev = udev;
++ dev->net = netdev;
++ dev->intf = intf;
++
++ /* Set up endpoints */
++ hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM);
++ if (hintf == NULL) {
++ retval = -ENODEV;
++ err("Unable to find alternate settings interface");
++ goto err_endpoints;
++ }
++
++ for (i = 0; i < hintf->desc.bNumEndpoints; i++) {
++ endp = &hintf->endpoint[i].desc;
++ if (usb_endpoint_is_bulk_in(endp))
++ dev->bulk_in = endp->bEndpointAddress;
++ else if (usb_endpoint_is_bulk_out(endp))
++ dev->bulk_out = endp->bEndpointAddress;
++ }
++ if (!(dev->bulk_in && dev->bulk_out)) {
++ retval = -ENODEV;
++ err("Unable to find endpoints");
++ goto err_endpoints;
++ }
++
++ dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL);
++ if (dev->ctrl_buf == NULL) {
++ retval = -ENOMEM;
++ goto err_alloc_ctrl_buf;
++ }
++
++ retval = ipheth_get_macaddr(dev);
++ if (retval)
++ goto err_get_macaddr;
++
++ INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work);
++
++ retval = ipheth_alloc_urbs(dev);
++ if (retval) {
++ err("error allocating urbs: %d", retval);
++ goto err_alloc_urbs;
++ }
++
++ usb_set_intfdata(intf, dev);
++
++ SET_NETDEV_DEV(netdev, &intf->dev);
++ SET_ETHTOOL_OPS(netdev, &ops);
++ SET_NETDEV_DEVTYPE(netdev, &ipheth_type);
++
++ retval = register_netdev(netdev);
++ if (retval) {
++ err("error registering netdev: %d", retval);
++ retval = -EIO;
++ goto err_register_netdev;
++ }
++
++ dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n");
++ return 0;
++
++err_register_netdev:
++ ipheth_free_urbs(dev);
++err_alloc_urbs:
++err_get_macaddr:
++err_alloc_ctrl_buf:
++ kfree(dev->ctrl_buf);
++err_endpoints:
++ free_netdev(netdev);
++ return retval;
++}
++
++static void ipheth_disconnect(struct usb_interface *intf)
++{
++ struct ipheth_device *dev;
++
++ dev = usb_get_intfdata(intf);
++ if (dev != NULL) {
++ unregister_netdev(dev->net);
++ ipheth_kill_urbs(dev);
++ ipheth_free_urbs(dev);
++ kfree(dev->ctrl_buf);
++ free_netdev(dev->net);
++ }
++ usb_set_intfdata(intf, NULL);
++ dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n");
++}
++
++static struct usb_driver ipheth_driver = {
++ .name = "ipheth",
++ .probe = ipheth_probe,
++ .disconnect = ipheth_disconnect,
++ .id_table = ipheth_table,
++};
++
++static int __init ipheth_init(void)
++{
++ int retval;
++
++ retval = usb_register(&ipheth_driver);
++ if (retval) {
++ err("usb_register failed: %d", retval);
++ return retval;
++ }
++ return 0;
++}
++
++static void __exit ipheth_exit(void)
++{
++ usb_deregister(&ipheth_driver);
++}
++
++module_init(ipheth_init);
++module_exit(ipheth_exit);
++
++MODULE_AUTHOR("Diego Giagio <diego at giagio.com>");
++MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver");
++MODULE_LICENSE("Dual BSD/GPL");
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