blob: 4a6aff579403907f28331f1ce22d8c570ce52d09 [file] [log] [blame]
David Brownell4324fd42005-08-31 09:54:20 -07001/*
2 * CDC Ethernet based networking peripherals
3 * Copyright (C) 2003-2005 by David Brownell
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -08004 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
David Brownell4324fd42005-08-31 09:54:20 -07005 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19 */
20
21// #define DEBUG // error path messages, extra info
22// #define VERBOSE // more; success messages
23
David Brownell4324fd42005-08-31 09:54:20 -070024#include <linux/module.h>
David Brownell4324fd42005-08-31 09:54:20 -070025#include <linux/init.h>
26#include <linux/netdevice.h>
27#include <linux/etherdevice.h>
David Brownell4324fd42005-08-31 09:54:20 -070028#include <linux/ethtool.h>
29#include <linux/workqueue.h>
30#include <linux/mii.h>
31#include <linux/usb.h>
David Brownella8c28f22006-06-13 09:57:47 -070032#include <linux/usb/cdc.h>
Jussi Kivilinna3692e942008-01-26 00:51:45 +020033#include <linux/usb/usbnet.h>
David Brownell4324fd42005-08-31 09:54:20 -070034
35
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -080036#if defined(CONFIG_USB_NET_RNDIS_HOST) || defined(CONFIG_USB_NET_RNDIS_HOST_MODULE)
37
38static int is_rndis(struct usb_interface_descriptor *desc)
39{
40 return desc->bInterfaceClass == USB_CLASS_COMM
41 && desc->bInterfaceSubClass == 2
42 && desc->bInterfaceProtocol == 0xff;
43}
44
45static int is_activesync(struct usb_interface_descriptor *desc)
46{
47 return desc->bInterfaceClass == USB_CLASS_MISC
48 && desc->bInterfaceSubClass == 1
49 && desc->bInterfaceProtocol == 1;
50}
51
Thomas Backlund7e99eed2008-07-22 13:55:58 -070052static int is_wireless_rndis(struct usb_interface_descriptor *desc)
53{
54 return desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER
55 && desc->bInterfaceSubClass == 1
56 && desc->bInterfaceProtocol == 3;
57}
58
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -080059#else
60
61#define is_rndis(desc) 0
62#define is_activesync(desc) 0
Thomas Backlund7e99eed2008-07-22 13:55:58 -070063#define is_wireless_rndis(desc) 0
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -080064
65#endif
66
David Brownell4324fd42005-08-31 09:54:20 -070067/*
68 * probes control interface, claims data interface, collects the bulk
69 * endpoints, activates data interface (if needed), maybe sets MTU.
70 * all pure cdc, except for certain firmware workarounds, and knowing
71 * that rndis uses one different rule.
72 */
73int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
74{
75 u8 *buf = intf->cur_altsetting->extra;
76 int len = intf->cur_altsetting->extralen;
77 struct usb_interface_descriptor *d;
78 struct cdc_state *info = (void *) &dev->data;
79 int status;
80 int rndis;
81 struct usb_driver *driver = driver_of(intf);
82
83 if (sizeof dev->data < sizeof *info)
84 return -EDOM;
85
86 /* expect strict spec conformance for the descriptors, but
87 * cope with firmware which stores them in the wrong place
88 */
89 if (len == 0 && dev->udev->actconfig->extralen) {
90 /* Motorola SB4100 (and others: Brad Hards says it's
91 * from a Broadcom design) put CDC descriptors here
92 */
93 buf = dev->udev->actconfig->extra;
94 len = dev->udev->actconfig->extralen;
95 if (len)
96 dev_dbg(&intf->dev,
97 "CDC descriptors on config\n");
98 }
99
David Brownell4149b722007-04-29 10:09:47 -0700100 /* Maybe CDC descriptors are after the endpoint? This bug has
101 * been seen on some 2Wire Inc RNDIS-ish products.
102 */
103 if (len == 0) {
104 struct usb_host_endpoint *hep;
105
106 hep = intf->cur_altsetting->endpoint;
107 if (hep) {
108 buf = hep->extra;
109 len = hep->extralen;
110 }
111 if (len)
112 dev_dbg(&intf->dev,
113 "CDC descriptors on endpoint\n");
114 }
115
David Brownell4324fd42005-08-31 09:54:20 -0700116 /* this assumes that if there's a non-RNDIS vendor variant
117 * of cdc-acm, it'll fail RNDIS requests cleanly.
118 */
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800119 rndis = is_rndis(&intf->cur_altsetting->desc)
Thomas Backlund7e99eed2008-07-22 13:55:58 -0700120 || is_activesync(&intf->cur_altsetting->desc)
121 || is_wireless_rndis(&intf->cur_altsetting->desc);
David Brownell4324fd42005-08-31 09:54:20 -0700122
123 memset(info, 0, sizeof *info);
124 info->control = intf;
125 while (len > 3) {
126 if (buf [1] != USB_DT_CS_INTERFACE)
127 goto next_desc;
128
129 /* use bDescriptorSubType to identify the CDC descriptors.
130 * We expect devices with CDC header and union descriptors.
131 * For CDC Ethernet we need the ethernet descriptor.
132 * For RNDIS, ignore two (pointless) CDC modem descriptors
133 * in favor of a complicated OID-based RPC scheme doing what
134 * CDC Ethernet achieves with a simple descriptor.
135 */
136 switch (buf [2]) {
137 case USB_CDC_HEADER_TYPE:
138 if (info->header) {
139 dev_dbg(&intf->dev, "extra CDC header\n");
140 goto bad_desc;
141 }
142 info->header = (void *) buf;
143 if (info->header->bLength != sizeof *info->header) {
144 dev_dbg(&intf->dev, "CDC header len %u\n",
145 info->header->bLength);
146 goto bad_desc;
147 }
148 break;
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800149 case USB_CDC_ACM_TYPE:
150 /* paranoia: disambiguate a "real" vendor-specific
151 * modem interface from an RNDIS non-modem.
152 */
153 if (rndis) {
David Brownellafaee822007-07-01 11:47:59 -0700154 struct usb_cdc_acm_descriptor *acm;
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800155
David Brownellafaee822007-07-01 11:47:59 -0700156 acm = (void *) buf;
157 if (acm->bmCapabilities) {
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800158 dev_dbg(&intf->dev,
159 "ACM capabilities %02x, "
160 "not really RNDIS?\n",
David Brownellafaee822007-07-01 11:47:59 -0700161 acm->bmCapabilities);
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800162 goto bad_desc;
163 }
164 }
165 break;
David Brownell4324fd42005-08-31 09:54:20 -0700166 case USB_CDC_UNION_TYPE:
167 if (info->u) {
168 dev_dbg(&intf->dev, "extra CDC union\n");
169 goto bad_desc;
170 }
171 info->u = (void *) buf;
172 if (info->u->bLength != sizeof *info->u) {
173 dev_dbg(&intf->dev, "CDC union len %u\n",
174 info->u->bLength);
175 goto bad_desc;
176 }
177
178 /* we need a master/control interface (what we're
179 * probed with) and a slave/data interface; union
180 * descriptors sort this all out.
181 */
182 info->control = usb_ifnum_to_if(dev->udev,
183 info->u->bMasterInterface0);
184 info->data = usb_ifnum_to_if(dev->udev,
185 info->u->bSlaveInterface0);
186 if (!info->control || !info->data) {
187 dev_dbg(&intf->dev,
188 "master #%u/%p slave #%u/%p\n",
189 info->u->bMasterInterface0,
190 info->control,
191 info->u->bSlaveInterface0,
192 info->data);
193 goto bad_desc;
194 }
195 if (info->control != intf) {
196 dev_dbg(&intf->dev, "bogus CDC Union\n");
197 /* Ambit USB Cable Modem (and maybe others)
198 * interchanges master and slave interface.
199 */
200 if (info->data == intf) {
201 info->data = info->control;
202 info->control = intf;
203 } else
204 goto bad_desc;
205 }
206
207 /* a data interface altsetting does the real i/o */
208 d = &info->data->cur_altsetting->desc;
209 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
210 dev_dbg(&intf->dev, "slave class %u\n",
211 d->bInterfaceClass);
212 goto bad_desc;
213 }
214 break;
215 case USB_CDC_ETHERNET_TYPE:
216 if (info->ether) {
217 dev_dbg(&intf->dev, "extra CDC ether\n");
218 goto bad_desc;
219 }
220 info->ether = (void *) buf;
221 if (info->ether->bLength != sizeof *info->ether) {
222 dev_dbg(&intf->dev, "CDC ether len %u\n",
223 info->ether->bLength);
224 goto bad_desc;
225 }
226 dev->hard_mtu = le16_to_cpu(
227 info->ether->wMaxSegmentSize);
228 /* because of Zaurus, we may be ignoring the host
229 * side link address we were given.
230 */
231 break;
232 }
233next_desc:
234 len -= buf [0]; /* bLength */
235 buf += buf [0];
236 }
237
Bjorge Dijkstra786e3df2008-01-26 00:50:44 +0200238 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
239 * CDC descriptors, so we'll hard-wire the interfaces and not check
240 * for descriptors.
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800241 */
Bjorge Dijkstra786e3df2008-01-26 00:50:44 +0200242 if (rndis && !info->u) {
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800243 info->control = usb_ifnum_to_if(dev->udev, 0);
244 info->data = usb_ifnum_to_if(dev->udev, 1);
245 if (!info->control || !info->data) {
246 dev_dbg(&intf->dev,
Bjorge Dijkstra786e3df2008-01-26 00:50:44 +0200247 "rndis: master #0/%p slave #1/%p\n",
Ole Andre Vadla Ravnasad55d712006-12-14 16:01:28 -0800248 info->control,
249 info->data);
250 goto bad_desc;
251 }
252
253 } else if (!info->header || !info->u || (!rndis && !info->ether)) {
David Brownell4324fd42005-08-31 09:54:20 -0700254 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
255 info->header ? "" : "header ",
256 info->u ? "" : "union ",
257 info->ether ? "" : "ether ");
258 goto bad_desc;
259 }
260
261 /* claim data interface and set it up ... with side effects.
262 * network traffic can't flow until an altsetting is enabled.
263 */
264 status = usb_driver_claim_interface(driver, info->data, dev);
265 if (status < 0)
266 return status;
267 status = usbnet_get_endpoints(dev, info->data);
268 if (status < 0) {
269 /* ensure immediate exit from usbnet_disconnect */
270 usb_set_intfdata(info->data, NULL);
271 usb_driver_release_interface(driver, info->data);
272 return status;
273 }
274
275 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
276 dev->status = NULL;
277 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
278 struct usb_endpoint_descriptor *desc;
279
280 dev->status = &info->control->cur_altsetting->endpoint [0];
281 desc = &dev->status->desc;
Luiz Fernando N. Capitulinob333d5b2006-10-26 13:02:47 -0300282 if (!usb_endpoint_is_int_in(desc)
David Brownell4324fd42005-08-31 09:54:20 -0700283 || (le16_to_cpu(desc->wMaxPacketSize)
284 < sizeof(struct usb_cdc_notification))
285 || !desc->bInterval) {
286 dev_dbg(&intf->dev, "bad notification endpoint\n");
287 dev->status = NULL;
288 }
289 }
290 if (rndis && !dev->status) {
291 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
292 usb_set_intfdata(info->data, NULL);
293 usb_driver_release_interface(driver, info->data);
294 return -ENODEV;
295 }
296 return 0;
297
298bad_desc:
299 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
300 return -ENODEV;
301}
302EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
303
304void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
305{
306 struct cdc_state *info = (void *) &dev->data;
307 struct usb_driver *driver = driver_of(intf);
308
309 /* disconnect master --> disconnect slave */
310 if (intf == info->control && info->data) {
311 /* ensure immediate exit from usbnet_disconnect */
312 usb_set_intfdata(info->data, NULL);
313 usb_driver_release_interface(driver, info->data);
314 info->data = NULL;
315 }
316
317 /* and vice versa (just in case) */
318 else if (intf == info->data && info->control) {
319 /* ensure immediate exit from usbnet_disconnect */
320 usb_set_intfdata(info->control, NULL);
321 usb_driver_release_interface(driver, info->control);
322 info->control = NULL;
323 }
324}
325EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
326
David Brownell4324fd42005-08-31 09:54:20 -0700327/*-------------------------------------------------------------------------
328 *
329 * Communications Device Class, Ethernet Control model
330 *
331 * Takes two interfaces. The DATA interface is inactive till an altsetting
332 * is selected. Configuration data includes class descriptors. There's
333 * an optional status endpoint on the control interface.
334 *
335 * This should interop with whatever the 2.4 "CDCEther.c" driver
336 * (by Brad Hards) talked with, with more functionality.
337 *
338 *-------------------------------------------------------------------------*/
339
340static void dumpspeed(struct usbnet *dev, __le32 *speeds)
341{
342 if (netif_msg_timer(dev))
343 devinfo(dev, "link speeds: %u kbps up, %u kbps down",
344 __le32_to_cpu(speeds[0]) / 1000,
345 __le32_to_cpu(speeds[1]) / 1000);
346}
347
348static void cdc_status(struct usbnet *dev, struct urb *urb)
349{
350 struct usb_cdc_notification *event;
351
352 if (urb->actual_length < sizeof *event)
353 return;
354
355 /* SPEED_CHANGE can get split into two 8-byte packets */
356 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
357 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
358 return;
359 }
360
361 event = urb->transfer_buffer;
362 switch (event->bNotificationType) {
363 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
364 if (netif_msg_timer(dev))
365 devdbg(dev, "CDC: carrier %s",
366 event->wValue ? "on" : "off");
367 if (event->wValue)
368 netif_carrier_on(dev->net);
369 else
370 netif_carrier_off(dev->net);
371 break;
372 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
373 if (netif_msg_timer(dev))
374 devdbg(dev, "CDC: speed change (len %d)",
375 urb->actual_length);
376 if (urb->actual_length != (sizeof *event + 8))
377 set_bit(EVENT_STS_SPLIT, &dev->flags);
378 else
379 dumpspeed(dev, (__le32 *) &event[1]);
380 break;
381 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
382 * but there are no standard formats for the response data.
383 */
384 default:
385 deverr(dev, "CDC: unexpected notification %02x!",
386 event->bNotificationType);
387 break;
388 }
389}
390
David Brownell4324fd42005-08-31 09:54:20 -0700391static int cdc_bind(struct usbnet *dev, struct usb_interface *intf)
392{
393 int status;
394 struct cdc_state *info = (void *) &dev->data;
395
396 status = usbnet_generic_cdc_bind(dev, intf);
397 if (status < 0)
398 return status;
399
Peter Holik03ad0322009-04-18 07:24:17 +0000400 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
David Brownell4324fd42005-08-31 09:54:20 -0700401 if (status < 0) {
402 usb_set_intfdata(info->data, NULL);
403 usb_driver_release_interface(driver_of(intf), info->data);
404 return status;
405 }
406
407 /* FIXME cdc-ether has some multicast code too, though it complains
408 * in routine cases. info->ether describes the multicast support.
409 * Implement that here, manipulating the cdc filter as needed.
410 */
411 return 0;
412}
413
414static const struct driver_info cdc_info = {
415 .description = "CDC Ethernet Device",
416 .flags = FLAG_ETHER,
417 // .check_connect = cdc_check_connect,
418 .bind = cdc_bind,
419 .unbind = usbnet_cdc_unbind,
420 .status = cdc_status,
421};
422
423/*-------------------------------------------------------------------------*/
424
425
426static const struct usb_device_id products [] = {
427/*
428 * BLACKLIST !!
429 *
430 * First blacklist any products that are egregiously nonconformant
431 * with the CDC Ethernet specs. Minor braindamage we cope with; when
432 * they're not even trying, needing a separate driver is only the first
433 * of the differences to show up.
434 */
435
436#define ZAURUS_MASTER_INTERFACE \
437 .bInterfaceClass = USB_CLASS_COMM, \
438 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
439 .bInterfaceProtocol = USB_CDC_PROTO_NONE
440
441/* SA-1100 based Sharp Zaurus ("collie"), or compatible;
442 * wire-incompatible with true CDC Ethernet implementations.
443 * (And, it seems, needlessly so...)
444 */
445{
446 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
447 | USB_DEVICE_ID_MATCH_DEVICE,
448 .idVendor = 0x04DD,
449 .idProduct = 0x8004,
450 ZAURUS_MASTER_INTERFACE,
451 .driver_info = 0,
452},
453
454/* PXA-25x based Sharp Zaurii. Note that it seems some of these
455 * (later models especially) may have shipped only with firmware
456 * advertising false "CDC MDLM" compatibility ... but we're not
457 * clear which models did that, so for now let's assume the worst.
458 */
459{
460 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
461 | USB_DEVICE_ID_MATCH_DEVICE,
462 .idVendor = 0x04DD,
463 .idProduct = 0x8005, /* A-300 */
464 ZAURUS_MASTER_INTERFACE,
465 .driver_info = 0,
466}, {
467 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
468 | USB_DEVICE_ID_MATCH_DEVICE,
469 .idVendor = 0x04DD,
470 .idProduct = 0x8006, /* B-500/SL-5600 */
471 ZAURUS_MASTER_INTERFACE,
472 .driver_info = 0,
473}, {
474 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
475 | USB_DEVICE_ID_MATCH_DEVICE,
476 .idVendor = 0x04DD,
477 .idProduct = 0x8007, /* C-700 */
478 ZAURUS_MASTER_INTERFACE,
479 .driver_info = 0,
480}, {
481 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
482 | USB_DEVICE_ID_MATCH_DEVICE,
483 .idVendor = 0x04DD,
484 .idProduct = 0x9031, /* C-750 C-760 */
485 ZAURUS_MASTER_INTERFACE,
486 .driver_info = 0,
487}, {
488 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
489 | USB_DEVICE_ID_MATCH_DEVICE,
490 .idVendor = 0x04DD,
491 .idProduct = 0x9032, /* SL-6000 */
492 ZAURUS_MASTER_INTERFACE,
493 .driver_info = 0,
494}, {
495 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
496 | USB_DEVICE_ID_MATCH_DEVICE,
497 .idVendor = 0x04DD,
498 /* reported with some C860 units */
499 .idProduct = 0x9050, /* C-860 */
500 ZAURUS_MASTER_INTERFACE,
501 .driver_info = 0,
502},
503
David Brownellefcaa202006-05-30 20:49:29 -0700504/* Olympus has some models with a Zaurus-compatible option.
505 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
506 */
507{
508 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
509 | USB_DEVICE_ID_MATCH_DEVICE,
510 .idVendor = 0x07B4,
511 .idProduct = 0x0F02, /* R-1000 */
512 ZAURUS_MASTER_INTERFACE,
513 .driver_info = 0,
514},
515
David Brownell4324fd42005-08-31 09:54:20 -0700516/*
517 * WHITELIST!!!
518 *
519 * CDC Ether uses two interfaces, not necessarily consecutive.
520 * We match the main interface, ignoring the optional device
521 * class so we could handle devices that aren't exclusively
522 * CDC ether.
523 *
524 * NOTE: this match must come AFTER entries blacklisting devices
525 * because of bugs/quirks in a given product (like Zaurus, above).
526 */
527{
528 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
529 USB_CDC_PROTO_NONE),
530 .driver_info = (unsigned long) &cdc_info,
Bjørn Morkcac477e2009-02-25 04:33:58 +0000531}, {
532 /* Ericsson F3507g */
533 USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1900, USB_CLASS_COMM,
534 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
535 .driver_info = (unsigned long) &cdc_info,
Jonas Sjöquist68924922009-06-18 01:50:52 +0000536}, {
537 /* Ericsson F3507g ver. 2 */
538 USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1902, USB_CLASS_COMM,
539 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
540 .driver_info = (unsigned long) &cdc_info,
541}, {
542 /* Ericsson F3607gw */
543 USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1904, USB_CLASS_COMM,
544 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
545 .driver_info = (unsigned long) &cdc_info,
546}, {
547 /* Ericsson F3307 */
548 USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x1906, USB_CLASS_COMM,
549 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
550 .driver_info = (unsigned long) &cdc_info,
551}, {
552 /* Toshiba F3507g */
553 USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM,
554 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
555 .driver_info = (unsigned long) &cdc_info,
556}, {
557 /* Dell F3507g */
558 USB_DEVICE_AND_INTERFACE_INFO(0x413c, 0x8147, USB_CLASS_COMM,
559 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
560 .driver_info = (unsigned long) &cdc_info,
David Brownell4324fd42005-08-31 09:54:20 -0700561},
562 { }, // END
563};
564MODULE_DEVICE_TABLE(usb, products);
565
566static struct usb_driver cdc_driver = {
David Brownell4324fd42005-08-31 09:54:20 -0700567 .name = "cdc_ether",
568 .id_table = products,
569 .probe = usbnet_probe,
570 .disconnect = usbnet_disconnect,
571 .suspend = usbnet_suspend,
572 .resume = usbnet_resume,
573};
574
575
576static int __init cdc_init(void)
577{
Alexey Dobriyanf8ac2322006-10-08 16:02:00 +0400578 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
David Brownell4324fd42005-08-31 09:54:20 -0700579 < sizeof(struct cdc_state)));
580
581 return usb_register(&cdc_driver);
582}
583module_init(cdc_init);
584
585static void __exit cdc_exit(void)
586{
587 usb_deregister(&cdc_driver);
588}
589module_exit(cdc_exit);
590
591MODULE_AUTHOR("David Brownell");
592MODULE_DESCRIPTION("USB CDC Ethernet devices");
593MODULE_LICENSE("GPL");