1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23#include <linux/module.h>
24#include <linux/netdevice.h>
25#include <linux/etherdevice.h>
26#include <linux/ethtool.h>
27#include <linux/workqueue.h>
28#include <linux/mii.h>
29#include <linux/usb.h>
30#include <linux/usb/cdc.h>
31#include <linux/usb/usbnet.h>
32
33
34#if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
35
36static int is_rndis(struct usb_interface_descriptor *desc)
37{
38 return (desc->bInterfaceClass == USB_CLASS_COMM &&
39 desc->bInterfaceSubClass == 2 &&
40 desc->bInterfaceProtocol == 0xff);
41}
42
43static int is_activesync(struct usb_interface_descriptor *desc)
44{
45 return (desc->bInterfaceClass == USB_CLASS_MISC &&
46 desc->bInterfaceSubClass == 1 &&
47 desc->bInterfaceProtocol == 1);
48}
49
50static int is_wireless_rndis(struct usb_interface_descriptor *desc)
51{
52 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
53 desc->bInterfaceSubClass == 1 &&
54 desc->bInterfaceProtocol == 3);
55}
56
57#else
58
59#define is_rndis(desc) 0
60#define is_activesync(desc) 0
61#define is_wireless_rndis(desc) 0
62
63#endif
64
65static const u8 mbm_guid[16] = {
66 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
67 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
68};
69
70static void usbnet_cdc_update_filter(struct usbnet *dev)
71{
72 struct cdc_state *info = (void *) &dev->data;
73 struct usb_interface *intf = info->control;
74 struct net_device *net = dev->net;
75
76 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
77 | USB_CDC_PACKET_TYPE_BROADCAST;
78
79
80
81
82
83 if (net->flags & IFF_PROMISC)
84 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
85 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
86 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
87
88 usb_control_msg(dev->udev,
89 usb_sndctrlpipe(dev->udev, 0),
90 USB_CDC_SET_ETHERNET_PACKET_FILTER,
91 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
92 cdc_filter,
93 intf->cur_altsetting->desc.bInterfaceNumber,
94 NULL,
95 0,
96 USB_CTRL_SET_TIMEOUT
97 );
98}
99
100
101
102
103
104
105int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
106{
107 u8 *buf = intf->cur_altsetting->extra;
108 int len = intf->cur_altsetting->extralen;
109 struct usb_interface_descriptor *d;
110 struct cdc_state *info = (void *) &dev->data;
111 int status;
112 int rndis;
113 bool android_rndis_quirk = false;
114 struct usb_driver *driver = driver_of(intf);
115 struct usb_cdc_parsed_header header;
116
117 if (sizeof(dev->data) < sizeof(*info))
118 return -EDOM;
119
120
121
122
123 if (len == 0 && dev->udev->actconfig->extralen) {
124
125
126
127 buf = dev->udev->actconfig->extra;
128 len = dev->udev->actconfig->extralen;
129 dev_dbg(&intf->dev, "CDC descriptors on config\n");
130 }
131
132
133
134
135 if (len == 0) {
136 struct usb_host_endpoint *hep;
137
138 hep = intf->cur_altsetting->endpoint;
139 if (hep) {
140 buf = hep->extra;
141 len = hep->extralen;
142 }
143 if (len)
144 dev_dbg(&intf->dev,
145 "CDC descriptors on endpoint\n");
146 }
147
148
149
150
151 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
152 is_activesync(&intf->cur_altsetting->desc) ||
153 is_wireless_rndis(&intf->cur_altsetting->desc));
154
155 memset(info, 0, sizeof(*info));
156 info->control = intf;
157
158 cdc_parse_cdc_header(&header, intf, buf, len);
159
160 info->u = header.usb_cdc_union_desc;
161 info->header = header.usb_cdc_header_desc;
162 info->ether = header.usb_cdc_ether_desc;
163 if (!info->u) {
164 if (rndis)
165 goto skip;
166 else
167 goto bad_desc;
168 }
169
170
171
172
173 info->control = usb_ifnum_to_if(dev->udev,
174 info->u->bMasterInterface0);
175 info->data = usb_ifnum_to_if(dev->udev,
176 info->u->bSlaveInterface0);
177 if (!info->control || !info->data) {
178 dev_dbg(&intf->dev,
179 "master #%u/%p slave #%u/%p\n",
180 info->u->bMasterInterface0,
181 info->control,
182 info->u->bSlaveInterface0,
183 info->data);
184
185 if (rndis) {
186 android_rndis_quirk = true;
187 goto skip;
188 }
189 goto bad_desc;
190 }
191 if (info->control != intf) {
192 dev_dbg(&intf->dev, "bogus CDC Union\n");
193
194
195
196 if (info->data == intf) {
197 info->data = info->control;
198 info->control = intf;
199 } else
200 goto bad_desc;
201 }
202
203
204 if (info->control == info->data)
205 goto skip;
206
207
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 }
214skip:
215 if ( rndis &&
216 header.usb_cdc_acm_descriptor &&
217 header.usb_cdc_acm_descriptor->bmCapabilities) {
218 dev_dbg(&intf->dev,
219 "ACM capabilities %02x, not really RNDIS?\n",
220 header.usb_cdc_acm_descriptor->bmCapabilities);
221 goto bad_desc;
222 }
223
224 if (header.usb_cdc_ether_desc) {
225 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
226
227
228
229 }
230
231 if (header.usb_cdc_mdlm_desc &&
232 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
233 dev_dbg(&intf->dev, "GUID doesn't match\n");
234 goto bad_desc;
235 }
236
237 if (header.usb_cdc_mdlm_detail_desc &&
238 header.usb_cdc_mdlm_detail_desc->bLength <
239 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
240 dev_dbg(&intf->dev, "Descriptor too short\n");
241 goto bad_desc;
242 }
243
244
245
246
247
248
249
250
251
252
253
254 if (rndis && (!info->u || android_rndis_quirk)) {
255 info->control = usb_ifnum_to_if(dev->udev, 0);
256 info->data = usb_ifnum_to_if(dev->udev, 1);
257 if (!info->control || !info->data || info->control != intf) {
258 dev_dbg(&intf->dev,
259 "rndis: master #0/%p slave #1/%p\n",
260 info->control,
261 info->data);
262 goto bad_desc;
263 }
264
265 } else if (!info->header || (!rndis && !info->ether)) {
266 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
267 info->header ? "" : "header ",
268 info->u ? "" : "union ",
269 info->ether ? "" : "ether ");
270 goto bad_desc;
271 }
272
273
274
275
276 if (info->data != info->control) {
277 status = usb_driver_claim_interface(driver, info->data, dev);
278 if (status < 0)
279 return status;
280 }
281 status = usbnet_get_endpoints(dev, info->data);
282 if (status < 0) {
283
284 usb_set_intfdata(info->data, NULL);
285 if (info->data != info->control)
286 usb_driver_release_interface(driver, info->data);
287 return status;
288 }
289
290
291 if (info->data != info->control)
292 dev->status = NULL;
293 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
294 struct usb_endpoint_descriptor *desc;
295
296 dev->status = &info->control->cur_altsetting->endpoint [0];
297 desc = &dev->status->desc;
298 if (!usb_endpoint_is_int_in(desc) ||
299 (le16_to_cpu(desc->wMaxPacketSize)
300 < sizeof(struct usb_cdc_notification)) ||
301 !desc->bInterval) {
302 dev_dbg(&intf->dev, "bad notification endpoint\n");
303 dev->status = NULL;
304 }
305 }
306 if (rndis && !dev->status) {
307 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
308 usb_set_intfdata(info->data, NULL);
309 usb_driver_release_interface(driver, info->data);
310 return -ENODEV;
311 }
312
313
314
315
316
317
318 usbnet_cdc_update_filter(dev);
319
320 return 0;
321
322bad_desc:
323 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
324 return -ENODEV;
325}
326EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
327
328void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
329{
330 struct cdc_state *info = (void *) &dev->data;
331 struct usb_driver *driver = driver_of(intf);
332
333
334 if (info->data == info->control)
335 return;
336
337
338 if (intf == info->control && info->data) {
339
340 usb_set_intfdata(info->data, NULL);
341 usb_driver_release_interface(driver, info->data);
342 info->data = NULL;
343 }
344
345
346 else if (intf == info->data && info->control) {
347
348 usb_set_intfdata(info->control, NULL);
349 usb_driver_release_interface(driver, info->control);
350 info->control = NULL;
351 }
352}
353EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
354
355
356
357
358
359
360
361
362
363
364
365static void dumpspeed(struct usbnet *dev, __le32 *speeds)
366{
367 netif_info(dev, timer, dev->net,
368 "link speeds: %u kbps up, %u kbps down\n",
369 __le32_to_cpu(speeds[0]) / 1000,
370 __le32_to_cpu(speeds[1]) / 1000);
371}
372
373void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
374{
375 struct usb_cdc_notification *event;
376
377 if (urb->actual_length < sizeof(*event))
378 return;
379
380
381 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
382 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
383 return;
384 }
385
386 event = urb->transfer_buffer;
387 switch (event->bNotificationType) {
388 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
389 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
390 event->wValue ? "on" : "off");
391 usbnet_link_change(dev, !!event->wValue, 0);
392 break;
393 case USB_CDC_NOTIFY_SPEED_CHANGE:
394 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
395 urb->actual_length);
396 if (urb->actual_length != (sizeof(*event) + 8))
397 set_bit(EVENT_STS_SPLIT, &dev->flags);
398 else
399 dumpspeed(dev, (__le32 *) &event[1]);
400 break;
401
402
403
404 default:
405 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
406 event->bNotificationType);
407 break;
408 }
409}
410EXPORT_SYMBOL_GPL(usbnet_cdc_status);
411
412int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
413{
414 int status;
415 struct cdc_state *info = (void *) &dev->data;
416
417 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
418 < sizeof(struct cdc_state)));
419
420 status = usbnet_generic_cdc_bind(dev, intf);
421 if (status < 0)
422 return status;
423
424 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
425 if (status < 0) {
426 usb_set_intfdata(info->data, NULL);
427 usb_driver_release_interface(driver_of(intf), info->data);
428 return status;
429 }
430
431 return 0;
432}
433EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
434
435static const struct driver_info cdc_info = {
436 .description = "CDC Ethernet Device",
437 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
438 .bind = usbnet_cdc_bind,
439 .unbind = usbnet_cdc_unbind,
440 .status = usbnet_cdc_status,
441 .set_rx_mode = usbnet_cdc_update_filter,
442 .manage_power = usbnet_manage_power,
443};
444
445static const struct driver_info wwan_info = {
446 .description = "Mobile Broadband Network Device",
447 .flags = FLAG_WWAN,
448 .bind = usbnet_cdc_bind,
449 .unbind = usbnet_cdc_unbind,
450 .status = usbnet_cdc_status,
451 .set_rx_mode = usbnet_cdc_update_filter,
452 .manage_power = usbnet_manage_power,
453};
454
455
456
457#define HUAWEI_VENDOR_ID 0x12D1
458#define NOVATEL_VENDOR_ID 0x1410
459#define ZTE_VENDOR_ID 0x19D2
460#define DELL_VENDOR_ID 0x413C
461#define REALTEK_VENDOR_ID 0x0bda
462#define SAMSUNG_VENDOR_ID 0x04e8
463#define LENOVO_VENDOR_ID 0x17ef
464#define NVIDIA_VENDOR_ID 0x0955
465
466static const struct usb_device_id products[] = {
467
468
469
470
471
472
473
474
475#define ZAURUS_MASTER_INTERFACE \
476 .bInterfaceClass = USB_CLASS_COMM, \
477 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
478 .bInterfaceProtocol = USB_CDC_PROTO_NONE
479
480
481
482
483
484{
485 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
486 | USB_DEVICE_ID_MATCH_DEVICE,
487 .idVendor = 0x04DD,
488 .idProduct = 0x8004,
489 ZAURUS_MASTER_INTERFACE,
490 .driver_info = 0,
491},
492
493
494
495
496
497
498{
499 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
500 | USB_DEVICE_ID_MATCH_DEVICE,
501 .idVendor = 0x04DD,
502 .idProduct = 0x8005,
503 ZAURUS_MASTER_INTERFACE,
504 .driver_info = 0,
505}, {
506 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
507 | USB_DEVICE_ID_MATCH_DEVICE,
508 .idVendor = 0x04DD,
509 .idProduct = 0x8006,
510 ZAURUS_MASTER_INTERFACE,
511 .driver_info = 0,
512}, {
513 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
514 | USB_DEVICE_ID_MATCH_DEVICE,
515 .idVendor = 0x04DD,
516 .idProduct = 0x8007,
517 ZAURUS_MASTER_INTERFACE,
518 .driver_info = 0,
519}, {
520 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
521 | USB_DEVICE_ID_MATCH_DEVICE,
522 .idVendor = 0x04DD,
523 .idProduct = 0x9031,
524 ZAURUS_MASTER_INTERFACE,
525 .driver_info = 0,
526}, {
527 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
528 | USB_DEVICE_ID_MATCH_DEVICE,
529 .idVendor = 0x04DD,
530 .idProduct = 0x9032,
531 ZAURUS_MASTER_INTERFACE,
532 .driver_info = 0,
533}, {
534 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
535 | USB_DEVICE_ID_MATCH_DEVICE,
536 .idVendor = 0x04DD,
537
538 .idProduct = 0x9050,
539 ZAURUS_MASTER_INTERFACE,
540 .driver_info = 0,
541},
542
543
544
545
546{
547 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
548 | USB_DEVICE_ID_MATCH_DEVICE,
549 .idVendor = 0x07B4,
550 .idProduct = 0x0F02,
551 ZAURUS_MASTER_INTERFACE,
552 .driver_info = 0,
553},
554
555
556{
557 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
558 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
559 .driver_info = 0,
560},
561
562
563{
564 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
565 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
566 .driver_info = 0,
567},
568
569
570{
571 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
572 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
573 .driver_info = 0,
574},
575
576
577{
578 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
579 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
580 .driver_info = 0,
581},
582
583
584{
585 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
586 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
587 .driver_info = 0,
588},
589
590
591{
592 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
593 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
594 .driver_info = 0,
595},
596
597
598{
599 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
600 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
601 .driver_info = 0,
602},
603
604
605{
606 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
607 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
608 .driver_info = 0,
609},
610
611
612{
613 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
614 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
615 .driver_info = 0,
616},
617
618
619{
620 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
621 .driver_info = 0,
622},
623
624
625{
626 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
627 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
628 .driver_info = 0,
629},
630
631
632{
633 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
634 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
635 .driver_info = 0,
636},
637
638
639{
640 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
641 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
642 .driver_info = 0,
643},
644
645
646{
647 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
648 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
649 .driver_info = 0,
650},
651
652
653{
654 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
655 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
656 .driver_info = 0,
657},
658
659
660
661
662
663
664
665
666
667
668
669{
670
671 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
672 USB_CDC_SUBCLASS_ETHERNET,
673 USB_CDC_PROTO_NONE),
674 .driver_info = (unsigned long)&wwan_info,
675}, {
676
677 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
678 USB_CDC_SUBCLASS_ETHERNET,
679 USB_CDC_PROTO_NONE),
680 .driver_info = (unsigned long)&wwan_info,
681}, {
682
683 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
684 USB_CDC_SUBCLASS_ETHERNET,
685 USB_CDC_PROTO_NONE),
686 .driver_info = (unsigned long)&wwan_info,
687}, {
688
689 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
690 USB_CDC_SUBCLASS_ETHERNET,
691 USB_CDC_PROTO_NONE),
692 .driver_info = (unsigned long)&wwan_info,
693}, {
694
695 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
696 USB_CDC_SUBCLASS_ETHERNET,
697 USB_CDC_PROTO_NONE),
698 .driver_info = (unsigned long)&wwan_info,
699}, {
700
701 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
702 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
703 .driver_info = (kernel_ulong_t) &wwan_info,
704}, {
705
706 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
707 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
708 .driver_info = (kernel_ulong_t)&wwan_info,
709}, {
710 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
711 USB_CDC_PROTO_NONE),
712 .driver_info = (unsigned long) &cdc_info,
713}, {
714 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
715 USB_CDC_PROTO_NONE),
716 .driver_info = (unsigned long)&wwan_info,
717
718}, {
719
720 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
721 USB_CDC_SUBCLASS_ETHERNET, 255),
722 .driver_info = (unsigned long)&wwan_info,
723},
724 { },
725};
726MODULE_DEVICE_TABLE(usb, products);
727
728static struct usb_driver cdc_driver = {
729 .name = "cdc_ether",
730 .id_table = products,
731 .probe = usbnet_probe,
732 .disconnect = usbnet_disconnect,
733 .suspend = usbnet_suspend,
734 .resume = usbnet_resume,
735 .reset_resume = usbnet_resume,
736 .supports_autosuspend = 1,
737 .disable_hub_initiated_lpm = 1,
738};
739
740module_usb_driver(cdc_driver);
741
742MODULE_AUTHOR("David Brownell");
743MODULE_DESCRIPTION("USB CDC Ethernet devices");
744MODULE_LICENSE("GPL");
745