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a19259c3 DG |
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 | ||
62 | #define IPHETH_USBINTF_CLASS 255 | |
63 | #define IPHETH_USBINTF_SUBCLASS 253 | |
64 | #define IPHETH_USBINTF_PROTO 1 | |
65 | ||
66 | #define IPHETH_BUF_SIZE 1516 | |
67 | #define IPHETH_TX_TIMEOUT (5 * HZ) | |
68 | ||
69 | #define IPHETH_INTFNUM 2 | |
70 | #define IPHETH_ALT_INTFNUM 1 | |
71 | ||
72 | #define IPHETH_CTRL_ENDP 0x00 | |
73 | #define IPHETH_CTRL_BUF_SIZE 0x40 | |
74 | #define IPHETH_CTRL_TIMEOUT (5 * HZ) | |
75 | ||
76 | #define IPHETH_CMD_GET_MACADDR 0x00 | |
77 | #define IPHETH_CMD_CARRIER_CHECK 0x45 | |
78 | ||
79 | #define IPHETH_CARRIER_CHECK_TIMEOUT round_jiffies_relative(1 * HZ) | |
80 | #define IPHETH_CARRIER_ON 0x04 | |
81 | ||
82 | static struct usb_device_id ipheth_table[] = { | |
83 | { USB_DEVICE_AND_INTERFACE_INFO( | |
84 | USB_VENDOR_APPLE, USB_PRODUCT_IPHONE, | |
85 | IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, | |
86 | IPHETH_USBINTF_PROTO) }, | |
87 | { USB_DEVICE_AND_INTERFACE_INFO( | |
88 | USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3G, | |
89 | IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, | |
90 | IPHETH_USBINTF_PROTO) }, | |
91 | { USB_DEVICE_AND_INTERFACE_INFO( | |
92 | USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_3GS, | |
93 | IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, | |
94 | IPHETH_USBINTF_PROTO) }, | |
95 | { } | |
96 | }; | |
97 | MODULE_DEVICE_TABLE(usb, ipheth_table); | |
98 | ||
99 | struct ipheth_device { | |
100 | struct usb_device *udev; | |
101 | struct usb_interface *intf; | |
102 | struct net_device *net; | |
103 | struct sk_buff *tx_skb; | |
104 | struct urb *tx_urb; | |
105 | struct urb *rx_urb; | |
106 | unsigned char *tx_buf; | |
107 | unsigned char *rx_buf; | |
108 | unsigned char *ctrl_buf; | |
109 | u8 bulk_in; | |
110 | u8 bulk_out; | |
111 | struct delayed_work carrier_work; | |
112 | }; | |
113 | ||
114 | static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags); | |
115 | ||
116 | static int ipheth_alloc_urbs(struct ipheth_device *iphone) | |
117 | { | |
118 | struct urb *tx_urb = NULL; | |
119 | struct urb *rx_urb = NULL; | |
120 | u8 *tx_buf = NULL; | |
121 | u8 *rx_buf = NULL; | |
122 | ||
123 | tx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
124 | if (tx_urb == NULL) | |
125 | goto error; | |
126 | ||
127 | rx_urb = usb_alloc_urb(0, GFP_KERNEL); | |
128 | if (rx_urb == NULL) | |
129 | goto error; | |
130 | ||
131 | tx_buf = usb_buffer_alloc(iphone->udev, | |
132 | IPHETH_BUF_SIZE, | |
133 | GFP_KERNEL, | |
134 | &tx_urb->transfer_dma); | |
135 | if (tx_buf == NULL) | |
136 | goto error; | |
137 | ||
138 | rx_buf = usb_buffer_alloc(iphone->udev, | |
139 | IPHETH_BUF_SIZE, | |
140 | GFP_KERNEL, | |
141 | &rx_urb->transfer_dma); | |
142 | if (rx_buf == NULL) | |
143 | goto error; | |
144 | ||
145 | ||
146 | iphone->tx_urb = tx_urb; | |
147 | iphone->rx_urb = rx_urb; | |
148 | iphone->tx_buf = tx_buf; | |
149 | iphone->rx_buf = rx_buf; | |
150 | return 0; | |
151 | ||
152 | error: | |
153 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, rx_buf, | |
154 | rx_urb->transfer_dma); | |
155 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, tx_buf, | |
156 | tx_urb->transfer_dma); | |
157 | usb_free_urb(rx_urb); | |
158 | usb_free_urb(tx_urb); | |
159 | return -ENOMEM; | |
160 | } | |
161 | ||
162 | static void ipheth_free_urbs(struct ipheth_device *iphone) | |
163 | { | |
164 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->rx_buf, | |
165 | iphone->rx_urb->transfer_dma); | |
166 | usb_buffer_free(iphone->udev, IPHETH_BUF_SIZE, iphone->tx_buf, | |
167 | iphone->tx_urb->transfer_dma); | |
168 | usb_free_urb(iphone->rx_urb); | |
169 | usb_free_urb(iphone->tx_urb); | |
170 | } | |
171 | ||
172 | static void ipheth_kill_urbs(struct ipheth_device *dev) | |
173 | { | |
174 | usb_kill_urb(dev->tx_urb); | |
175 | usb_kill_urb(dev->rx_urb); | |
176 | } | |
177 | ||
178 | static void ipheth_rcvbulk_callback(struct urb *urb) | |
179 | { | |
180 | struct ipheth_device *dev; | |
181 | struct sk_buff *skb; | |
182 | int status; | |
183 | char *buf; | |
184 | int len; | |
185 | ||
186 | dev = urb->context; | |
187 | if (dev == NULL) | |
188 | return; | |
189 | ||
190 | status = urb->status; | |
191 | switch (status) { | |
192 | case -ENOENT: | |
193 | case -ECONNRESET: | |
194 | case -ESHUTDOWN: | |
195 | return; | |
196 | case 0: | |
197 | break; | |
198 | default: | |
199 | err("%s: urb status: %d", __func__, urb->status); | |
200 | return; | |
201 | } | |
202 | ||
203 | len = urb->actual_length; | |
204 | buf = urb->transfer_buffer; | |
205 | ||
206 | skb = dev_alloc_skb(NET_IP_ALIGN + len); | |
207 | if (!skb) { | |
208 | err("%s: dev_alloc_skb: -ENOMEM", __func__); | |
209 | dev->net->stats.rx_dropped++; | |
210 | return; | |
211 | } | |
212 | ||
213 | skb_reserve(skb, NET_IP_ALIGN); | |
214 | memcpy(skb_put(skb, len), buf + NET_IP_ALIGN, len - NET_IP_ALIGN); | |
215 | skb->dev = dev->net; | |
216 | skb->protocol = eth_type_trans(skb, dev->net); | |
217 | ||
218 | dev->net->stats.rx_packets++; | |
219 | dev->net->stats.rx_bytes += len; | |
220 | ||
221 | netif_rx(skb); | |
222 | ipheth_rx_submit(dev, GFP_ATOMIC); | |
223 | } | |
224 | ||
225 | static void ipheth_sndbulk_callback(struct urb *urb) | |
226 | { | |
227 | struct ipheth_device *dev; | |
228 | ||
229 | dev = urb->context; | |
230 | if (dev == NULL) | |
231 | return; | |
232 | ||
233 | if (urb->status != 0 && | |
234 | urb->status != -ENOENT && | |
235 | urb->status != -ECONNRESET && | |
236 | urb->status != -ESHUTDOWN) | |
237 | err("%s: urb status: %d", __func__, urb->status); | |
238 | ||
239 | dev_kfree_skb_irq(dev->tx_skb); | |
240 | netif_wake_queue(dev->net); | |
241 | } | |
242 | ||
243 | static int ipheth_carrier_set(struct ipheth_device *dev) | |
244 | { | |
245 | struct usb_device *udev = dev->udev; | |
246 | int retval; | |
247 | ||
248 | retval = usb_control_msg(udev, | |
249 | usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), | |
250 | IPHETH_CMD_CARRIER_CHECK, /* request */ | |
251 | 0xc0, /* request type */ | |
252 | 0x00, /* value */ | |
253 | 0x02, /* index */ | |
254 | dev->ctrl_buf, IPHETH_CTRL_BUF_SIZE, | |
255 | IPHETH_CTRL_TIMEOUT); | |
256 | if (retval < 0) { | |
257 | err("%s: usb_control_msg: %d", __func__, retval); | |
258 | return retval; | |
259 | } | |
260 | ||
261 | if (dev->ctrl_buf[0] == IPHETH_CARRIER_ON) | |
262 | netif_carrier_on(dev->net); | |
263 | else | |
264 | netif_carrier_off(dev->net); | |
265 | ||
266 | return 0; | |
267 | } | |
268 | ||
269 | static void ipheth_carrier_check_work(struct work_struct *work) | |
270 | { | |
271 | struct ipheth_device *dev = container_of(work, struct ipheth_device, | |
272 | carrier_work.work); | |
273 | ||
274 | ipheth_carrier_set(dev); | |
275 | schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); | |
276 | } | |
277 | ||
278 | static int ipheth_get_macaddr(struct ipheth_device *dev) | |
279 | { | |
280 | struct usb_device *udev = dev->udev; | |
281 | struct net_device *net = dev->net; | |
282 | int retval; | |
283 | ||
284 | retval = usb_control_msg(udev, | |
285 | usb_rcvctrlpipe(udev, IPHETH_CTRL_ENDP), | |
286 | IPHETH_CMD_GET_MACADDR, /* request */ | |
287 | 0xc0, /* request type */ | |
288 | 0x00, /* value */ | |
289 | 0x02, /* index */ | |
290 | dev->ctrl_buf, | |
291 | IPHETH_CTRL_BUF_SIZE, | |
292 | IPHETH_CTRL_TIMEOUT); | |
293 | if (retval < 0) { | |
294 | err("%s: usb_control_msg: %d", __func__, retval); | |
295 | } else if (retval < ETH_ALEN) { | |
296 | err("%s: usb_control_msg: short packet: %d bytes", | |
297 | __func__, retval); | |
298 | retval = -EINVAL; | |
299 | } else { | |
300 | memcpy(net->dev_addr, dev->ctrl_buf, ETH_ALEN); | |
301 | retval = 0; | |
302 | } | |
303 | ||
304 | return retval; | |
305 | } | |
306 | ||
307 | static int ipheth_rx_submit(struct ipheth_device *dev, gfp_t mem_flags) | |
308 | { | |
309 | struct usb_device *udev = dev->udev; | |
310 | int retval; | |
311 | ||
312 | usb_fill_bulk_urb(dev->rx_urb, udev, | |
313 | usb_rcvbulkpipe(udev, dev->bulk_in), | |
314 | dev->rx_buf, IPHETH_BUF_SIZE, | |
315 | ipheth_rcvbulk_callback, | |
316 | dev); | |
317 | dev->rx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
318 | ||
319 | retval = usb_submit_urb(dev->rx_urb, mem_flags); | |
320 | if (retval) | |
321 | err("%s: usb_submit_urb: %d", __func__, retval); | |
322 | return retval; | |
323 | } | |
324 | ||
325 | static int ipheth_open(struct net_device *net) | |
326 | { | |
327 | struct ipheth_device *dev = netdev_priv(net); | |
328 | struct usb_device *udev = dev->udev; | |
329 | int retval = 0; | |
330 | ||
331 | usb_set_interface(udev, IPHETH_INTFNUM, IPHETH_ALT_INTFNUM); | |
332 | ||
333 | retval = ipheth_carrier_set(dev); | |
334 | if (retval) | |
335 | return retval; | |
336 | ||
337 | retval = ipheth_rx_submit(dev, GFP_KERNEL); | |
338 | if (retval) | |
339 | return retval; | |
340 | ||
341 | schedule_delayed_work(&dev->carrier_work, IPHETH_CARRIER_CHECK_TIMEOUT); | |
342 | netif_start_queue(net); | |
343 | return retval; | |
344 | } | |
345 | ||
346 | static int ipheth_close(struct net_device *net) | |
347 | { | |
348 | struct ipheth_device *dev = netdev_priv(net); | |
349 | ||
350 | cancel_delayed_work_sync(&dev->carrier_work); | |
351 | netif_stop_queue(net); | |
352 | return 0; | |
353 | } | |
354 | ||
355 | static int ipheth_tx(struct sk_buff *skb, struct net_device *net) | |
356 | { | |
357 | struct ipheth_device *dev = netdev_priv(net); | |
358 | struct usb_device *udev = dev->udev; | |
359 | int retval; | |
360 | ||
361 | /* Paranoid */ | |
362 | if (skb->len > IPHETH_BUF_SIZE) { | |
363 | WARN(1, "%s: skb too large: %d bytes", __func__, skb->len); | |
364 | dev->net->stats.tx_dropped++; | |
365 | dev_kfree_skb_irq(skb); | |
366 | return NETDEV_TX_OK; | |
367 | } | |
368 | ||
369 | memcpy(dev->tx_buf, skb->data, skb->len); | |
370 | if (skb->len < IPHETH_BUF_SIZE) | |
371 | memset(dev->tx_buf + skb->len, 0, IPHETH_BUF_SIZE - skb->len); | |
372 | ||
373 | usb_fill_bulk_urb(dev->tx_urb, udev, | |
374 | usb_sndbulkpipe(udev, dev->bulk_out), | |
375 | dev->tx_buf, IPHETH_BUF_SIZE, | |
376 | ipheth_sndbulk_callback, | |
377 | dev); | |
378 | dev->tx_urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP; | |
379 | ||
380 | retval = usb_submit_urb(dev->tx_urb, GFP_ATOMIC); | |
381 | if (retval) { | |
382 | err("%s: usb_submit_urb: %d", __func__, retval); | |
383 | dev->net->stats.tx_errors++; | |
384 | dev_kfree_skb_irq(skb); | |
385 | } else { | |
386 | dev->tx_skb = skb; | |
387 | ||
388 | dev->net->stats.tx_packets++; | |
389 | dev->net->stats.tx_bytes += skb->len; | |
390 | netif_stop_queue(net); | |
391 | } | |
392 | ||
393 | return NETDEV_TX_OK; | |
394 | } | |
395 | ||
396 | static void ipheth_tx_timeout(struct net_device *net) | |
397 | { | |
398 | struct ipheth_device *dev = netdev_priv(net); | |
399 | ||
400 | err("%s: TX timeout", __func__); | |
401 | dev->net->stats.tx_errors++; | |
402 | usb_unlink_urb(dev->tx_urb); | |
403 | } | |
404 | ||
405 | static struct net_device_stats *ipheth_stats(struct net_device *net) | |
406 | { | |
407 | struct ipheth_device *dev = netdev_priv(net); | |
408 | return &dev->net->stats; | |
409 | } | |
410 | ||
411 | static u32 ipheth_ethtool_op_get_link(struct net_device *net) | |
412 | { | |
413 | struct ipheth_device *dev = netdev_priv(net); | |
414 | return netif_carrier_ok(dev->net); | |
415 | } | |
416 | ||
417 | static struct ethtool_ops ops = { | |
418 | .get_link = ipheth_ethtool_op_get_link | |
419 | }; | |
420 | ||
421 | static const struct net_device_ops ipheth_netdev_ops = { | |
422 | .ndo_open = &ipheth_open, | |
423 | .ndo_stop = &ipheth_close, | |
424 | .ndo_start_xmit = &ipheth_tx, | |
425 | .ndo_tx_timeout = &ipheth_tx_timeout, | |
426 | .ndo_get_stats = &ipheth_stats, | |
427 | }; | |
428 | ||
429 | static struct device_type ipheth_type = { | |
430 | .name = "wwan", | |
431 | }; | |
432 | ||
433 | static int ipheth_probe(struct usb_interface *intf, | |
434 | const struct usb_device_id *id) | |
435 | { | |
436 | struct usb_device *udev = interface_to_usbdev(intf); | |
437 | struct usb_host_interface *hintf; | |
438 | struct usb_endpoint_descriptor *endp; | |
439 | struct ipheth_device *dev; | |
440 | struct net_device *netdev; | |
441 | int i; | |
442 | int retval; | |
443 | ||
444 | netdev = alloc_etherdev(sizeof(struct ipheth_device)); | |
445 | if (!netdev) | |
446 | return -ENOMEM; | |
447 | ||
448 | netdev->netdev_ops = &ipheth_netdev_ops; | |
449 | netdev->watchdog_timeo = IPHETH_TX_TIMEOUT; | |
450 | strcpy(netdev->name, "wwan%d"); | |
451 | ||
452 | dev = netdev_priv(netdev); | |
453 | dev->udev = udev; | |
454 | dev->net = netdev; | |
455 | dev->intf = intf; | |
456 | ||
457 | /* Set up endpoints */ | |
458 | hintf = usb_altnum_to_altsetting(intf, IPHETH_ALT_INTFNUM); | |
459 | if (hintf == NULL) { | |
460 | retval = -ENODEV; | |
461 | err("Unable to find alternate settings interface"); | |
462 | goto err_endpoints; | |
463 | } | |
464 | ||
465 | for (i = 0; i < hintf->desc.bNumEndpoints; i++) { | |
466 | endp = &hintf->endpoint[i].desc; | |
467 | if (usb_endpoint_is_bulk_in(endp)) | |
468 | dev->bulk_in = endp->bEndpointAddress; | |
469 | else if (usb_endpoint_is_bulk_out(endp)) | |
470 | dev->bulk_out = endp->bEndpointAddress; | |
471 | } | |
472 | if (!(dev->bulk_in && dev->bulk_out)) { | |
473 | retval = -ENODEV; | |
474 | err("Unable to find endpoints"); | |
475 | goto err_endpoints; | |
476 | } | |
477 | ||
478 | dev->ctrl_buf = kmalloc(IPHETH_CTRL_BUF_SIZE, GFP_KERNEL); | |
479 | if (dev->ctrl_buf == NULL) { | |
480 | retval = -ENOMEM; | |
481 | goto err_alloc_ctrl_buf; | |
482 | } | |
483 | ||
484 | retval = ipheth_get_macaddr(dev); | |
485 | if (retval) | |
486 | goto err_get_macaddr; | |
487 | ||
488 | INIT_DELAYED_WORK(&dev->carrier_work, ipheth_carrier_check_work); | |
489 | ||
490 | retval = ipheth_alloc_urbs(dev); | |
491 | if (retval) { | |
492 | err("error allocating urbs: %d", retval); | |
493 | goto err_alloc_urbs; | |
494 | } | |
495 | ||
496 | usb_set_intfdata(intf, dev); | |
497 | ||
498 | SET_NETDEV_DEV(netdev, &intf->dev); | |
499 | SET_ETHTOOL_OPS(netdev, &ops); | |
500 | SET_NETDEV_DEVTYPE(netdev, &ipheth_type); | |
501 | ||
502 | retval = register_netdev(netdev); | |
503 | if (retval) { | |
504 | err("error registering netdev: %d", retval); | |
505 | retval = -EIO; | |
506 | goto err_register_netdev; | |
507 | } | |
508 | ||
509 | dev_info(&intf->dev, "Apple iPhone USB Ethernet device attached\n"); | |
510 | return 0; | |
511 | ||
512 | err_register_netdev: | |
513 | ipheth_free_urbs(dev); | |
514 | err_alloc_urbs: | |
515 | err_get_macaddr: | |
516 | err_alloc_ctrl_buf: | |
517 | kfree(dev->ctrl_buf); | |
518 | err_endpoints: | |
519 | free_netdev(netdev); | |
520 | return retval; | |
521 | } | |
522 | ||
523 | static void ipheth_disconnect(struct usb_interface *intf) | |
524 | { | |
525 | struct ipheth_device *dev; | |
526 | ||
527 | dev = usb_get_intfdata(intf); | |
528 | if (dev != NULL) { | |
529 | unregister_netdev(dev->net); | |
530 | ipheth_kill_urbs(dev); | |
531 | ipheth_free_urbs(dev); | |
532 | kfree(dev->ctrl_buf); | |
533 | free_netdev(dev->net); | |
534 | } | |
535 | usb_set_intfdata(intf, NULL); | |
536 | dev_info(&intf->dev, "Apple iPhone USB Ethernet now disconnected\n"); | |
537 | } | |
538 | ||
539 | static struct usb_driver ipheth_driver = { | |
540 | .name = "ipheth", | |
541 | .probe = ipheth_probe, | |
542 | .disconnect = ipheth_disconnect, | |
543 | .id_table = ipheth_table, | |
544 | }; | |
545 | ||
546 | static int __init ipheth_init(void) | |
547 | { | |
548 | int retval; | |
549 | ||
550 | retval = usb_register(&ipheth_driver); | |
551 | if (retval) { | |
552 | err("usb_register failed: %d", retval); | |
553 | return retval; | |
554 | } | |
555 | return 0; | |
556 | } | |
557 | ||
558 | static void __exit ipheth_exit(void) | |
559 | { | |
560 | usb_deregister(&ipheth_driver); | |
561 | } | |
562 | ||
563 | module_init(ipheth_init); | |
564 | module_exit(ipheth_exit); | |
565 | ||
566 | MODULE_AUTHOR("Diego Giagio <diego@giagio.com>"); | |
567 | MODULE_DESCRIPTION("Apple iPhone USB Ethernet driver"); | |
568 | MODULE_LICENSE("Dual BSD/GPL"); |