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/slab.h> 49 #include <linux/module.h> 50 #include <linux/netdevice.h> 51 #include <linux/etherdevice.h> 52 #include <linux/ethtool.h> 53 #include <linux/usb.h> 54 #include <linux/workqueue.h> 55 56 #define USB_VENDOR_APPLE 0x05ac 57 #define USB_PRODUCT_IPHONE 0x1290 58 #define USB_PRODUCT_IPHONE_3G 0x1292 59 #define USB_PRODUCT_IPHONE_3GS 0x1294 60 #define USB_PRODUCT_IPHONE_4 0x1297 61 #define USB_PRODUCT_IPAD 0x129a 62 #define USB_PRODUCT_IPAD_2 0x12a2 63 #define USB_PRODUCT_IPAD_3 0x12a6 64 #define USB_PRODUCT_IPAD_MINI 0x12ab 65 #define USB_PRODUCT_IPHONE_4_VZW 0x129c 66 #define USB_PRODUCT_IPHONE_4S 0x12a0 67 #define USB_PRODUCT_IPHONE_5 0x12a8 68 69 #define IPHETH_USBINTF_CLASS 255 70 #define IPHETH_USBINTF_SUBCLASS 253 71 #define IPHETH_USBINTF_PROTO 1 72 73 #define IPHETH_BUF_SIZE 1516 74 #define IPHETH_IP_ALIGN 2 /* padding at front of URB */ 75 #define IPHETH_TX_TIMEOUT (5 * HZ) 76 77 #define IPHETH_INTFNUM 2 78 #define IPHETH_ALT_INTFNUM 1 79 80 #define IPHETH_CTRL_ENDP 0x00 81 #define IPHETH_CTRL_BUF_SIZE 0x40 82 #define IPHETH_CTRL_TIMEOUT (5 * HZ) 83 84 #define IPHETH_CMD_GET_MACADDR 0x00 85 #define IPHETH_CMD_CARRIER_CHECK 0x45 86 87 #define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ) 88 #define IPHETH_CARRIER_ON 0x04 89 90 static const struct usb_device_id ipheth_table[] = { 91 { USB_DEVICE_AND_INTERFACE_INFO( 92 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE, 93 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 94 IPHETH_USBINTF_PROTO) }, 95 { USB_DEVICE_AND_INTERFACE_INFO( 96 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G, 97 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 98 IPHETH_USBINTF_PROTO) }, 99 { USB_DEVICE_AND_INTERFACE_INFO( 100 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS, 101 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 102 IPHETH_USBINTF_PROTO) }, 103 { USB_DEVICE_AND_INTERFACE_INFO( 104 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4, 105 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 106 IPHETH_USBINTF_PROTO) }, 107 { USB_DEVICE_AND_INTERFACE_INFO( 108 USB_VENDOR_APPLE, USB_PRODUCT_IPAD, 109 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 110 IPHETH_USBINTF_PROTO) }, 111 { USB_DEVICE_AND_INTERFACE_INFO( 112 USB_VENDOR_APPLE, USB_PRODUCT_IPAD_2, 113 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 114 IPHETH_USBINTF_PROTO) }, 115 { USB_DEVICE_AND_INTERFACE_INFO( 116 USB_VENDOR_APPLE, USB_PRODUCT_IPAD_3, 117 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 118 IPHETH_USBINTF_PROTO) }, 119 { USB_DEVICE_AND_INTERFACE_INFO( 120 USB_VENDOR_APPLE, USB_PRODUCT_IPAD_MINI, 121 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 122 IPHETH_USBINTF_PROTO) }, 123 { USB_DEVICE_AND_INTERFACE_INFO( 124 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW, 125 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 126 IPHETH_USBINTF_PROTO) }, 127 { USB_DEVICE_AND_INTERFACE_INFO( 128 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4S, 129 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 130 IPHETH_USBINTF_PROTO) }, 131 { USB_DEVICE_AND_INTERFACE_INFO( 132 USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_5, 133 IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, 134 IPHETH_USBINTF_PROTO) }, 135 { } 136 }; 137 MODULE_DEVICE_TABLE(usb, ipheth_table); 138 139 struct ipheth_device { 140 struct usb_device *udev; 141 struct usb_interface *intf; 142 struct net_device *net; 143 struct sk_buff *tx_skb; 144 struct urb *tx_urb; 145 struct urb *rx_urb; 146 unsigned char *tx_buf; 147 unsigned char *rx_buf; 148 unsigned char *ctrl_buf; 149 u8 bulk_in; 150 u8 bulk_out; 151 struct delayed_work carrier_work; 152 bool confirmed_pairing; 153 }; 154 155 static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags); 156 157 static int ipheth_alloc_urbs(struct ipheth_device *iphone) 158 { 159 struct urb *tx_urb = NULL; 160 struct urb *rx_urb = NULL; 161 u8 *tx_buf = NULL; 162 u8 *rx_buf = NULL; 163 164 tx_urb = usb_alloc_urb(0, GFP_KERNEL); 165 if (tx_urb == NULL) 166 goto error_nomem; 167 168 rx_urb = usb_alloc_urb(0, GFP_KERNEL); 169 if (rx_urb == NULL) 170 goto free_tx_urb; 171 172 tx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, 173 GFP_KERNEL, &tx_urb->transfer_dma); 174 if (tx_buf == NULL) 175 goto free_rx_urb; 176 177 rx_buf = usb_alloc_coherent(iphone->udev, IPHETH_BUF_SIZE, 178 GFP_KERNEL, &rx_urb->transfer_dma); 179 if (rx_buf == NULL) 180 goto free_tx_buf; 181 182 183 iphone->tx_urb = tx_urb; 184 iphone->rx_urb = rx_urb; 185 iphone->tx_buf = tx_buf; 186 iphone->rx_buf = rx_buf; 187 return 0; 188 189 free_tx_buf: 190 usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, tx_buf, 191 tx_urb->transfer_dma); 192 free_rx_urb: 193 usb_free_urb(rx_urb); 194 free_tx_urb: 195 usb_free_urb(tx_urb); 196 error_nomem: 197 return -ENOMEM; 198 } 199 200 static void ipheth_free_urbs(struct ipheth_device *iphone) 201 { 202 usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf, 203 iphone->rx_urb->transfer_dma); 204 usb_free_coherent(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf, 205 iphone->tx_urb->transfer_dma); 206 usb_free_urb(iphone->rx_urb); 207 usb_free_urb(iphone->tx_urb); 208 } 209 210 static void ipheth_kill_urbs(struct ipheth_device *dev) 211 { 212 usb_kill_urb(dev->tx_urb); 213 usb_kill_urb(dev->rx_urb); 214 } 215 216 static void ipheth_rcvbulk_callback(struct urb *urb) 217 { 218 struct ipheth_device *dev; 219 struct sk_buff *skb; 220 int status; 221 char *buf; 222 int len; 223 224 dev = urb->context; 225 if (dev == NULL) 226 return; 227 228 status = urb->status; 229 switch (status) { 230 case -ENOENT: 231 case -ECONNRESET: 232 case -ESHUTDOWN: 233 return; 234 case 0: 235 break; 236 default: 237 dev_err(&dev->intf->dev, "%s: urb status: %d\n", 238 __func__, status); 239 return; 240 } 241 242 if (urb->actual_length <= IPHETH_IP_ALIGN) { 243 dev->net->stats.rx_length_errors++; 244 return; 245 } 246 len = urb->actual_length - IPHETH_IP_ALIGN; 247 buf = urb->transfer_buffer + IPHETH_IP_ALIGN; 248 249 skb = dev_alloc_skb(len); 250 if (!skb) { 251 dev_err(&dev->intf->dev, "%s: dev_alloc_skb: -ENOMEM\n", 252 __func__); 253 dev->net->stats.rx_dropped++; 254 return; 255 } 256 257 skb_put_data(skb, buf, len); 258 skb->dev = dev->net; 259 skb->protocol = eth_type_trans(skb, dev->net); 260 261 dev->net->stats.rx_packets++; 262 dev->net->stats.rx_bytes += len; 263 dev->confirmed_pairing = true; 264 netif_rx(skb); 265 ipheth_rx_submit(dev, GFP_ATOMIC); 266 } 267 268 static void ipheth_sndbulk_callback(struct urb *urb) 269 { 270 struct ipheth_device *dev; 271 int status = urb->status; 272 273 dev = urb->context; 274 if (dev == NULL) 275 return; 276 277 if (status != 0 && 278 status != -ENOENT && 279 status != -ECONNRESET && 280 status != -ESHUTDOWN) 281 dev_err(&dev->intf->dev, "%s: urb status: %d\n", 282 __func__, status); 283 284 dev_kfree_skb_irq(dev->tx_skb); 285 if (status == 0) 286 netif_wake_queue(dev->net); 287 else 288 // on URB error, trigger immediate poll 289 schedule_delayed_work(&dev->carrier_work, 0); 290 } 291 292 static int ipheth_carrier_set(struct ipheth_device *dev) 293 { 294 struct usb_device *udev = dev->udev; 295 int retval; 296 if (!dev) 297 return 0; 298 if (!dev->confirmed_pairing) 299 return 0; 300 retval = usb_control_msg(udev, 301 usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), 302 IPHETH_CMD_CARRIER_CHECK, /* request */ 303 0xc0, /* request type */ 304 0x00, /* value */ 305 0x02, /* index */ 306 dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE, 307 IPHETH_CTRL_TIMEOUT); 308 if (retval < 0) { 309 dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n", 310 __func__, retval); 311 return retval; 312 } 313 314 if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) { 315 netif_carrier_on(dev->net); 316 if (dev->tx_urb->status != -EINPROGRESS) 317 netif_wake_queue(dev->net); 318 } else { 319 netif_carrier_off(dev->net); 320 netif_stop_queue(dev->net); 321 } 322 return 0; 323 } 324 325 static void ipheth_carrier_check_work(struct work_struct *work) 326 { 327 struct ipheth_device *dev = container_of(work, struct ipheth_device, 328 carrier_work.work); 329 330 ipheth_carrier_set(dev); 331 schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); 332 } 333 334 static int ipheth_get_macaddr(struct ipheth_device *dev) 335 { 336 struct usb_device *udev = dev->udev; 337 struct net_device *net = dev->net; 338 int retval; 339 340 retval = usb_control_msg(udev, 341 usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), 342 IPHETH_CMD_GET_MACADDR, /* request */ 343 0xc0, /* request type */ 344 0x00, /* value */ 345 0x02, /* index */ 346 dev->ctrl_buf, 347 IPHETH_CTRL_BUF_SIZE, 348 IPHETH_CTRL_TIMEOUT); 349 if (retval < 0) { 350 dev_err(&dev->intf->dev, "%s: usb_control_msg: %d\n", 351 __func__, retval); 352 } else if (retval < ETH_ALEN) { 353 dev_err(&dev->intf->dev, 354 "%s: usb_control_msg: short packet: %d bytes\n", 355 __func__, retval); 356 retval = -EINVAL; 357 } else { 358 memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN); 359 retval = 0; 360 } 361 362 return retval; 363 } 364 365 static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) 366 { 367 struct usb_device *udev = dev->udev; 368 int retval; 369 370 usb_fill_bulk_urb(dev->rx_urb, udev, 371 usb_rcvbulkpipe(udev, dev->bulk_in), 372 dev->rx_buf, IPHETH_BUF_SIZE, 373 ipheth_rcvbulk_callback, 374 dev); 375 dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 376 377 retval = usb_submit_urb(dev->rx_urb, mem_flags); 378 if (retval) 379 dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n", 380 __func__, retval); 381 return retval; 382 } 383 384 static int ipheth_open(struct net_device *net) 385 { 386 struct ipheth_device *dev = netdev_priv(net); 387 struct usb_device *udev = dev->udev; 388 int retval = 0; 389 390 usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM); 391 392 retval = ipheth_carrier_set(dev); 393 if (retval) 394 return retval; 395 396 retval = ipheth_rx_submit(dev, GFP_KERNEL); 397 if (retval) 398 return retval; 399 400 schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); 401 return retval; 402 } 403 404 static int ipheth_close(struct net_device *net) 405 { 406 struct ipheth_device *dev = netdev_priv(net); 407 408 cancel_delayed_work_sync(&dev->carrier_work); 409 netif_stop_queue(net); 410 return 0; 411 } 412 413 static int ipheth_tx(struct sk_buff *skb, struct net_device *net) 414 { 415 struct ipheth_device *dev = netdev_priv(net); 416 struct usb_device *udev = dev->udev; 417 int retval; 418 419 /* Paranoid */ 420 if (skb->len > IPHETH_BUF_SIZE) { 421 WARN(1, "%s: skb too large: %d bytes\n", __func__, skb->len); 422 dev->net->stats.tx_dropped++; 423 dev_kfree_skb_irq(skb); 424 return NETDEV_TX_OK; 425 } 426 427 memcpy(dev->tx_buf, skb->data, skb->len); 428 if (skb->len < IPHETH_BUF_SIZE) 429 memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len); 430 431 usb_fill_bulk_urb(dev->tx_urb, udev, 432 usb_sndbulkpipe(udev, dev->bulk_out), 433 dev->tx_buf, IPHETH_BUF_SIZE, 434 ipheth_sndbulk_callback, 435 dev); 436 dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; 437 438 retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC); 439 if (retval) { 440 dev_err(&dev->intf->dev, "%s: usb_submit_urb: %d\n", 441 __func__, retval); 442 dev->net->stats.tx_errors++; 443 dev_kfree_skb_irq(skb); 444 } else { 445 dev->tx_skb = skb; 446 447 dev->net->stats.tx_packets++; 448 dev->net->stats.tx_bytes += skb->len; 449 netif_stop_queue(net); 450 } 451 452 return NETDEV_TX_OK; 453 } 454 455 static void ipheth_tx_timeout(struct net_device *net) 456 { 457 struct ipheth_device *dev = netdev_priv(net); 458 459 dev_err(&dev->intf->dev, "%s: TX timeout\n", __func__); 460 dev->net->stats.tx_errors++; 461 usb_unlink_urb(dev->tx_urb); 462 } 463 464 static u32 ipheth_ethtool_op_get_link(struct net_device *net) 465 { 466 struct ipheth_device *dev = netdev_priv(net); 467 return netif_carrier_ok(dev->net); 468 } 469 470 static const struct ethtool_ops ops = { 471 .get_link = ipheth_ethtool_op_get_link 472 }; 473 474 static const struct net_device_ops ipheth_netdev_ops = { 475 .ndo_open = ipheth_open, 476 .ndo_stop = ipheth_close, 477 .ndo_start_xmit = ipheth_tx, 478 .ndo_tx_timeout = ipheth_tx_timeout, 479 }; 480 481 static int ipheth_probe(struct usb_interface *intf, 482 const struct usb_device_id *id) 483 { 484 struct usb_device *udev = interface_to_usbdev(intf); 485 struct usb_host_interface *hintf; 486 struct usb_endpoint_descriptor *endp; 487 struct ipheth_device *dev; 488 struct net_device *netdev; 489 int i; 490 int retval; 491 492 netdev = alloc_etherdev(sizeof(struct ipheth_device)); 493 if (!netdev) 494 return -ENOMEM; 495 496 netdev->netdev_ops = &ipheth_netdev_ops; 497 netdev->watchdog_timeo = IPHETH_TX_TIMEOUT; 498 strcpy(netdev->name, "eth%d"); 499 500 dev = netdev_priv(netdev); 501 dev->udev = udev; 502 dev->net = netdev; 503 dev->intf = intf; 504 dev->confirmed_pairing = false; 505 /* Set up endpoints */ 506 hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM); 507 if (hintf == NULL) { 508 retval = -ENODEV; 509 dev_err(&intf->dev, "Unable to find alternate settings interface\n"); 510 goto err_endpoints; 511 } 512 513 for (i = 0; i < hintf->desc.bNumEndpoints; i++) { 514 endp = &hintf->endpoint[i].desc; 515 if (usb_endpoint_is_bulk_in(endp)) 516 dev->bulk_in = endp->bEndpointAddress; 517 else if (usb_endpoint_is_bulk_out(endp)) 518 dev->bulk_out = endp->bEndpointAddress; 519 } 520 if (!(dev->bulk_in && dev->bulk_out)) { 521 retval = -ENODEV; 522 dev_err(&intf->dev, "Unable to find endpoints\n"); 523 goto err_endpoints; 524 } 525 526 dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL); 527 if (dev->ctrl_buf == NULL) { 528 retval = -ENOMEM; 529 goto err_alloc_ctrl_buf; 530 } 531 532 retval = ipheth_get_macaddr(dev); 533 if (retval) 534 goto err_get_macaddr; 535 536 INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work); 537 538 retval = ipheth_alloc_urbs(dev); 539 if (retval) { 540 dev_err(&intf->dev, "error allocating urbs: %d\n", retval); 541 goto err_alloc_urbs; 542 } 543 544 usb_set_intfdata(intf, dev); 545 546 SET_NETDEV_DEV(netdev, &intf->dev); 547 netdev->ethtool_ops = &ops; 548 549 retval = register_netdev(netdev); 550 if (retval) { 551 dev_err(&intf->dev, "error registering netdev: %d\n", retval); 552 retval = -EIO; 553 goto err_register_netdev; 554 } 555 // carrier down and transmit queues stopped until packet from device 556 netif_carrier_off(netdev); 557 netif_tx_stop_all_queues(netdev); 558 dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n"); 559 return 0; 560 561 err_register_netdev: 562 ipheth_free_urbs(dev); 563 err_alloc_urbs: 564 err_get_macaddr: 565 err_alloc_ctrl_buf: 566 kfree(dev->ctrl_buf); 567 err_endpoints: 568 free_netdev(netdev); 569 return retval; 570 } 571 572 static void ipheth_disconnect(struct usb_interface *intf) 573 { 574 struct ipheth_device *dev; 575 576 dev = usb_get_intfdata(intf); 577 if (dev != NULL) { 578 unregister_netdev(dev->net); 579 ipheth_kill_urbs(dev); 580 ipheth_free_urbs(dev); 581 kfree(dev->ctrl_buf); 582 free_netdev(dev->net); 583 } 584 usb_set_intfdata(intf, NULL); 585 dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n"); 586 } 587 588 static struct usb_driver ipheth_driver = { 589 .name = "ipheth", 590 .probe = ipheth_probe, 591 .disconnect = ipheth_disconnect, 592 .id_table = ipheth_table, 593 .disable_hub_initiated_lpm = 1, 594 }; 595 596 module_usb_driver(ipheth_driver); 597 598 MODULE_AUTHOR("Diego Giagio <diego@giagio.com>"); 599 MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver"); 600 MODULE_LICENSE("Dual BSD/GPL"); 601