drivers/net/usb/ipheth.c

   1 /*
   2  * ipheth.c - Apple iPhone USB Ethernet driver
   3  *
   4  * Copyright (c) 2009 Diego Giagio <diego@giagio.com>
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of GIAGIO.COM nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * Alternatively, provided that this notice is retained in full, this
  20  * software may be distributed under the terms of the GNU General
  21  * Public License ("GPL") version 2, in which case the provisions of the
  22  * GPL apply INSTEAD OF those given above.
  23  *
  24  * The provided data structures and external interfaces from this code
  25  * are not restricted to be used by modules with a GPL compatible license.
  26  *
  27  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  28  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  29  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  30  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  31  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  32  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  33  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  34  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  35  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  36  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  37  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
  38  * DAMAGE.
  39  *
  40  *
  41  * Attention: iPhone device must be paired, otherwise it won't respond to our
  42  * driver. For more info: http://giagio.com/wiki/moin.cgi/iPhoneEthernetDriver
  43  *
  44  */
  45
  46 #include <linux/kernel.h>
  47 #include <linux/errno.h>
  48 #include <linux/init.h>
  49 #include <linux/slab.h>
  50 #include <linux/module.h>
  51 #include <linux/netdevice.h>
  52 #include <linux/etherdevice.h>
  53 #include <linux/ethtool.h>
  54 #include <linux/usb.h>
  55 #include <linux/workqueue.h>
  56
  57 #define USB_VENDOR_APPLE        0x05ac
  58 #define USB_PRODUCT_IPHONE      0x1290
  59 #define USB_PRODUCT_IPHONE_3G   0x1292
  60 #define USB_PRODUCT_IPHONE_3GS  0x1294
  61 #define USB_PRODUCT_IPHONE_4    0x1297
  62 #define USB_PRODUCT_IPAD 0x129a
  63 #define USB_PRODUCT_IPAD_MINI    0x12ab
  64 #define USB_PRODUCT_IPHONE_4_VZW 0x129c
  65 #define USB_PRODUCT_IPHONE_4S   0x12a0
  66 #define USB_PRODUCT_IPHONE_5    0x12a8
  67
  68 #define IPHETH_USBINTF_CLASS    255
  69 #define IPHETH_USBINTF_SUBCLASS 253
  70 #define IPHETH_USBINTF_PROTO    1
  71
  72 #define IPHETH_BUF_SIZE         1516
  73 #define IPHETH_IP_ALIGN         2       /* padding at front of URB */
  74 #define IPHETH_TX_TIMEOUT       (5 * HZ)
  75
  76 #define IPHETH_INTFNUM          2
  77 #define IPHETH_ALT_INTFNUM      1
  78
  79 #define IPHETH_CTRL_ENDP        0x00
  80 #define IPHETH_CTRL_BUF_SIZE    0x40
  81 #define IPHETH_CTRL_TIMEOUT     (5 * HZ)
  82
  83 #define IPHETH_CMD_GET_MACADDR   0x00
  84 #define IPHETH_CMD_CARRIER_CHECK 0x45
  85
  86 #define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ)
  87 #define IPHETH_CARRIER_ON       0x04
  88
  89 static struct usb_device_id ipheth_table[] = {
  90         { USB_DEVICE_AND_INTERFACE_INFO(
  91                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE,
  92                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
  93                 IPHETH_USBINTF_PROTO) },
  94         { USB_DEVICE_AND_INTERFACE_INFO(
  95                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G,
  96                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
  97                 IPHETH_USBINTF_PROTO) },
  98         { USB_DEVICE_AND_INTERFACE_INFO(
  99                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS,
 100                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 101                 IPHETH_USBINTF_PROTO) },
 102         { USB_DEVICE_AND_INTERFACE_INFO(
 103                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4,
 104                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 105                 IPHETH_USBINTF_PROTO) },
 106         { USB_DEVICE_AND_INTERFACE_INFO(
 107                 USB_VENDOR_APPLE, USB_PRODUCT_IPAD,
 108                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 109                 IPHETH_USBINTF_PROTO) },
 110         { USB_DEVICE_AND_INTERFACE_INFO(
 111                 USB_VENDOR_APPLE, USB_PRODUCT_IPAD_MINI,
 112                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 113                 IPHETH_USBINTF_PROTO) },
 114         { USB_DEVICE_AND_INTERFACE_INFO(
 115                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW,
 116                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 117                 IPHETH_USBINTF_PROTO) },
 118         { USB_DEVICE_AND_INTERFACE_INFO(
 119                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4S,
 120                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 121                 IPHETH_USBINTF_PROTO) },
 122         { USB_DEVICE_AND_INTERFACE_INFO(
 123                 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_5,
 124                 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS,
 125                 IPHETH_USBINTF_PROTO) },
 126         { }
 127 };
 128 MODULE_DEVICE_TABLE(usb, ipheth_table);
 129
 130 struct ipheth_device {
 131         struct usb_device *udev;
 132         struct usb_interface *intf;
 133         struct net_device *net;
 134         struct sk_buff *tx_skb;
 135         struct urb *tx_urb;
 136         struct urb *rx_urb;
 137         unsigned char *tx_buf;
 138         unsigned char *rx_buf;
 139         unsigned char *ctrl_buf;
 140         u8 bulk_in;
 141         u8 bulk_out;
 142         struct delayed_work carrier_work;
 143 };
 144
 145 static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags);
 146
 147 static int ipheth_alloc_urbs(struct ipheth_device *iphone)
 148 {
 149         struct urb *tx_urb = NULL;
 150         struct urb *rx_urb = NULL;
 151         u8 *tx_buf = NULL;
 152         u8 *rx_buf = NULL;
 153
 154         tx_urb = usb_alloc_urb(0, GFP_KERNEL);
 155         if (tx_urb == NULL)
 156                 goto error_nomem;
 157
 158         rx_urb = usb_alloc_urb(0, GFP_KERNEL);
 159         if (rx_urb == NULL)
 160                 goto free_tx_urb;
 161
 162         tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
 163                                     GFP_KERNEL, &tx_urb->transfer_dma);
 164         if (tx_buf == NULL)
 165                 goto free_rx_urb;
 166
 167         rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE,
 168                                     GFP_KERNEL, &rx_urb->transfer_dma);
 169         if (rx_buf == NULL)
 170                 goto free_tx_buf;
 171
 172
 173         iphone->tx_urb = tx_urb;
 174         iphone->rx_urb = rx_urb;
 175         iphone->tx_buf = tx_buf;
 176         iphone->rx_buf = rx_buf;
 177         return 0;
 178
 179 free_tx_buf:
 180         usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf,
 181                           tx_urb->transfer_dma);
 182 free_rx_urb:
 183         usb_free_urb(rx_urb);
 184 free_tx_urb:
 185         usb_free_urb(tx_urb);
 186 error_nomem:
 187         return -ENOMEM;
 188 }
 189
 190 static void ipheth_free_urbs(struct ipheth_device *iphone)
 191 {
 192         usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf,
 193                           iphone->rx_urb->transfer_dma);
 194         usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf,
 195                           iphone->tx_urb->transfer_dma);
 196         usb_free_urb(iphone->rx_urb);
 197         usb_free_urb(iphone->tx_urb);
 198 }
 199
 200 static void ipheth_kill_urbs(struct ipheth_device *dev)
 201 {
 202         usb_kill_urb(dev->tx_urb);
 203         usb_kill_urb(dev->rx_urb);
 204 }
 205
 206 static void ipheth_rcvbulk_callback(struct urb *urb)
 207 {
 208         struct ipheth_device *dev;
 209         struct sk_buff *skb;
 210         int status;
 211         char *buf;
 212         int len;
 213
 214         dev = urb->context;
 215         if (dev == NULL)
 216                 return;
 217
 218         status = urb->status;
 219         switch (status) {
 220         case -ENOENT:
 221         case -ECONNRESET:
 222         case -ESHUTDOWN:
 223                 return;
 224         case 0:
 225                 break;
 226         default:
 227                 dev_err(&dev->intf->dev, "%s: urb status: %d\n",
 228                         __func__, status);
 229                 return;
 230         }
 231
 232         if (urb->actual_length <= IPHETH_IP_ALIGN) {
 233                 dev->net->stats.rx_length_errors++;
 234                 return;
 235         }
 236         len = urb->actual_length - IPHETH_IP_ALIGN;
 237         buf = urb->transfer_buffer + IPHETH_IP_ALIGN;
 238
 239         skb = dev_alloc_skb(len);
 240         if (!skb) {
 241                 dev_err(&dev->intf->dev, "%s: dev_alloc_skb: -ENOMEM\n",
 242                         __func__);
 243                 dev->net->stats.rx_dropped++;
 244                 return;
 245         }
 246
 247         memcpy(skb_put(skb, len), buf, len);
 248         skb->dev = dev->net;
 249         skb->protocol = eth_type_trans(skb, dev->net);
 250
 251         dev->net->stats.rx_packets++;
 252         dev->net->stats.rx_bytes += len;
 253
 254         netif_rx(skb);
 255         ipheth_rx_submit(dev, GFP_ATOMIC);
 256 }
 257
 258 static void ipheth_sndbulk_callback(struct urb *urb)
 259 {
 260         struct ipheth_device *dev;
 261         int status = urb->status;
 262
 263         dev = urb->context;
 264         if (dev == NULL)
 265                 return;
 266
 267         if (status != 0 &&
 268             status != -ENOENT &&
 269             status != -ECONNRESET &&
 270             status != -ESHUTDOWN)
 271                 dev_err(&dev->intf->dev, "%s: urb status: %d\n",
 272                 __func__, status);
 273
 274         dev_kfree_skb_irq(dev->tx_skb);
 275         netif_wake_queue(dev->net);
 276 }
 277
 278 static int ipheth_carrier_set(struct ipheth_device *dev)
 279 {
 280         struct usb_device *udev = dev->udev;
 281         int retval;
 282
 283         retval = usb_control_msg(udev,
 284                         usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
 285                         IPHETH_CMD_CARRIER_CHECK, /* request */
 286                         0xc0, /* request type */
 287                         0x00, /* value */
 288                         0x02, /* index */
 289                         dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE,
 290                         IPHETH_CTRL_TIMEOUT);
 291         if (retval < 0) {
 292                 dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n",
 293                         __func__, retval);
 294                 return retval;
 295         }
 296
 297         if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON)
 298                 netif_carrier_on(dev->net);
 299         else
 300                 netif_carrier_off(dev->net);
 301
 302         return 0;
 303 }
 304
 305 static void ipheth_carrier_check_work(struct work_struct *work)
 306 {
 307         struct ipheth_device *dev = container_of(work, struct ipheth_device,
 308                                                  carrier_work.work);
 309
 310         ipheth_carrier_set(dev);
 311         schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
 312 }
 313
 314 static int ipheth_get_macaddr(struct ipheth_device *dev)
 315 {
 316         struct usb_device *udev = dev->udev;
 317         struct net_device *net = dev->net;
 318         int retval;
 319
 320         retval = usb_control_msg(udev,
 321                                  usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP),
 322                                  IPHETH_CMD_GET_MACADDR, /* request */
 323                                  0xc0, /* request type */
 324                                  0x00, /* value */
 325                                  0x02, /* index */
 326                                  dev->ctrl_buf,
 327                                  IPHETH_CTRL_BUF_SIZE,
 328                                  IPHETH_CTRL_TIMEOUT);
 329         if (retval < 0) {
 330                 dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n",
 331                         __func__, retval);
 332         } else if (retval < ETH_ALEN) {
 333                 dev_err(&dev->intf->dev,
 334                         "%s: usb_control_msg: short packet: %d bytes\n",
 335                         __func__, retval);
 336                 retval = -EINVAL;
 337         } else {
 338                 memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN);
 339                 retval = 0;
 340         }
 341
 342         return retval;
 343 }
 344
 345 static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags)
 346 {
 347         struct usb_device *udev = dev->udev;
 348         int retval;
 349
 350         usb_fill_bulk_urb(dev->rx_urb, udev,
 351                           usb_rcvbulkpipe(udev, dev->bulk_in),
 352                           dev->rx_buf, IPHETH_BUF_SIZE,
 353                           ipheth_rcvbulk_callback,
 354                           dev);
 355         dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 356
 357         retval = usb_submit_urb(dev->rx_urb, mem_flags);
 358         if (retval)
 359                 dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n",
 360                         __func__, retval);
 361         return retval;
 362 }
 363
 364 static int ipheth_open(struct net_device *net)
 365 {
 366         struct ipheth_device *dev = netdev_priv(net);
 367         struct usb_device *udev = dev->udev;
 368         int retval = 0;
 369
 370         usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM);
 371
 372         retval = ipheth_carrier_set(dev);
 373         if (retval)
 374                 return retval;
 375
 376         retval = ipheth_rx_submit(dev, GFP_KERNEL);
 377         if (retval)
 378                 return retval;
 379
 380         schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT);
 381         netif_start_queue(net);
 382         return retval;
 383 }
 384
 385 static int ipheth_close(struct net_device *net)
 386 {
 387         struct ipheth_device *dev = netdev_priv(net);
 388
 389         cancel_delayed_work_sync(&dev->carrier_work);
 390         netif_stop_queue(net);
 391         return 0;
 392 }
 393
 394 static int ipheth_tx(struct sk_buff *skb, struct net_device *net)
 395 {
 396         struct ipheth_device *dev = netdev_priv(net);
 397         struct usb_device *udev = dev->udev;
 398         int retval;
 399
 400         /* Paranoid */
 401         if (skb->len > IPHETH_BUF_SIZE) {
 402                 WARN(1, "%s: skb too large: %d bytes\n", __func__, skb->len);
 403                 dev->net->stats.tx_dropped++;
 404                 dev_kfree_skb_irq(skb);
 405                 return NETDEV_TX_OK;
 406         }
 407
 408         memcpy(dev->tx_buf, skb->data, skb->len);
 409         if (skb->len < IPHETH_BUF_SIZE)
 410                 memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len);
 411
 412         usb_fill_bulk_urb(dev->tx_urb, udev,
 413                           usb_sndbulkpipe(udev, dev->bulk_out),
 414                           dev->tx_buf, IPHETH_BUF_SIZE,
 415                           ipheth_sndbulk_callback,
 416                           dev);
 417         dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
 418
 419         retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC);
 420         if (retval) {
 421                 dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n",
 422                         __func__, retval);
 423                 dev->net->stats.tx_errors++;
 424                 dev_kfree_skb_irq(skb);
 425         } else {
 426                 dev->tx_skb = skb;
 427
 428                 dev->net->stats.tx_packets++;
 429                 dev->net->stats.tx_bytes += skb->len;
 430                 netif_stop_queue(net);
 431         }
 432
 433         return NETDEV_TX_OK;
 434 }
 435
 436 static void ipheth_tx_timeout(struct net_device *net)
 437 {
 438         struct ipheth_device *dev = netdev_priv(net);
 439
 440         dev_err(&dev->intf->dev, "%s: TX timeout\n", __func__);
 441         dev->net->stats.tx_errors++;
 442         usb_unlink_urb(dev->tx_urb);
 443 }
 444
 445 static u32 ipheth_ethtool_op_get_link(struct net_device *net)
 446 {
 447         struct ipheth_device *dev = netdev_priv(net);
 448         return netif_carrier_ok(dev->net);
 449 }
 450
 451 static const struct ethtool_ops ops = {
 452         .get_link = ipheth_ethtool_op_get_link
 453 };
 454
 455 static const struct net_device_ops ipheth_netdev_ops = {
 456         .ndo_open = ipheth_open,
 457         .ndo_stop = ipheth_close,
 458         .ndo_start_xmit = ipheth_tx,
 459         .ndo_tx_timeout = ipheth_tx_timeout,
 460 };
 461
 462 static int ipheth_probe(struct usb_interface *intf,
 463                         const struct usb_device_id *id)
 464 {
 465         struct usb_device *udev = interface_to_usbdev(intf);
 466         struct usb_host_interface *hintf;
 467         struct usb_endpoint_descriptor *endp;
 468         struct ipheth_device *dev;
 469         struct net_device *netdev;
 470         int i;
 471         int retval;
 472
 473         netdev = alloc_etherdev(sizeof(struct ipheth_device));
 474         if (!netdev)
 475                 return -ENOMEM;
 476
 477         netdev->netdev_ops = &ipheth_netdev_ops;
 478         netdev->watchdog_timeo = IPHETH_TX_TIMEOUT;
 479         strcpy(netdev->name, "eth%d");
 480
 481         dev = netdev_priv(netdev);
 482         dev->udev = udev;
 483         dev->net = netdev;
 484         dev->intf = intf;
 485
 486         /* Set up endpoints */
 487         hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM);
 488         if (hintf == NULL) {
 489                 retval = -ENODEV;
 490                 dev_err(&intf->dev, "Unable to find alternate settings interface\n");
 491                 goto err_endpoints;
 492         }
 493
 494         for (i = 0; i < hintf->desc.bNumEndpoints; i++) {
 495                 endp = &hintf->endpoint[i].desc;
 496                 if (usb_endpoint_is_bulk_in(endp))
 497                         dev->bulk_in = endp->bEndpointAddress;
 498                 else if (usb_endpoint_is_bulk_out(endp))
 499                         dev->bulk_out = endp->bEndpointAddress;
 500         }
 501         if (!(dev->bulk_in && dev->bulk_out)) {
 502                 retval = -ENODEV;
 503                 dev_err(&intf->dev, "Unable to find endpoints\n");
 504                 goto err_endpoints;
 505         }
 506
 507         dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL);
 508         if (dev->ctrl_buf == NULL) {
 509                 retval = -ENOMEM;
 510                 goto err_alloc_ctrl_buf;
 511         }
 512
 513         retval = ipheth_get_macaddr(dev);
 514         if (retval)
 515                 goto err_get_macaddr;
 516
 517         INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work);
 518
 519         retval = ipheth_alloc_urbs(dev);
 520         if (retval) {
 521                 dev_err(&intf->dev, "error allocating urbs: %d\n", retval);
 522                 goto err_alloc_urbs;
 523         }
 524
 525         usb_set_intfdata(intf, dev);
 526
 527         SET_NETDEV_DEV(netdev, &intf->dev);
 528         SET_ETHTOOL_OPS(netdev, &ops);
 529
 530         retval = register_netdev(netdev);
 531         if (retval) {
 532                 dev_err(&intf->dev, "error registering netdev: %d\n", retval);
 533                 retval = -EIO;
 534                 goto err_register_netdev;
 535         }
 536
 537         dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n");
 538         return 0;
 539
 540 err_register_netdev:
 541         ipheth_free_urbs(dev);
 542 err_alloc_urbs:
 543 err_get_macaddr:
 544 err_alloc_ctrl_buf:
 545         kfree(dev->ctrl_buf);
 546 err_endpoints:
 547         free_netdev(netdev);
 548         return retval;
 549 }
 550
 551 static void ipheth_disconnect(struct usb_interface *intf)
 552 {
 553         struct ipheth_device *dev;
 554
 555         dev = usb_get_intfdata(intf);
 556         if (dev != NULL) {
 557                 unregister_netdev(dev->net);
 558                 ipheth_kill_urbs(dev);
 559                 ipheth_free_urbs(dev);
 560                 kfree(dev->ctrl_buf);
 561                 free_netdev(dev->net);
 562         }
 563         usb_set_intfdata(intf, NULL);
 564         dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n");
 565 }
 566
 567 static struct usb_driver ipheth_driver = {
 568         .name =         "ipheth",
 569         .probe =        ipheth_probe,
 570         .disconnect =   ipheth_disconnect,
 571         .id_table =     ipheth_table,
 572         .disable_hub_initiated_lpm = 1,
 573 };
 574
 575 module_usb_driver(ipheth_driver);
 576
 577 MODULE_AUTHOR("Diego Giagio <diego@giagio.com>");
 578 MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver");
 579 MODULE_LICENSE("Dual BSD/GPL");