2 * CDC Ethernet based networking peripherals
3 * Copyright (C) 2003-2005 by David Brownell
4 * Copyright (C) 2006 by Ole Andre Vadla Ravnas (ActiveSync)
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.
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.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
20 // #define DEBUG // error path messages, extra info
21 // #define VERBOSE // more; success messages
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>
34 #if IS_ENABLED(CONFIG_USB_NET_RNDIS_HOST)
36 static int is_rndis(struct usb_interface_descriptor *desc)
38 return (desc->bInterfaceClass == USB_CLASS_COMM &&
39 desc->bInterfaceSubClass == 2 &&
40 desc->bInterfaceProtocol == 0xff);
43 static int is_activesync(struct usb_interface_descriptor *desc)
45 return (desc->bInterfaceClass == USB_CLASS_MISC &&
46 desc->bInterfaceSubClass == 1 &&
47 desc->bInterfaceProtocol == 1);
50 static int is_wireless_rndis(struct usb_interface_descriptor *desc)
52 return (desc->bInterfaceClass == USB_CLASS_WIRELESS_CONTROLLER &&
53 desc->bInterfaceSubClass == 1 &&
54 desc->bInterfaceProtocol == 3);
59 #define is_rndis(desc) 0
60 #define is_activesync(desc) 0
61 #define is_wireless_rndis(desc) 0
65 static const u8 mbm_guid[16] = {
66 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
67 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
70 /* probes control interface, claims data interface, collects the bulk
71 * endpoints, activates data interface (if needed), maybe sets MTU.
72 * all pure cdc, except for certain firmware workarounds, and knowing
73 * that rndis uses one different rule.
75 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
77 u8 *buf = intf->cur_altsetting->extra;
78 int len = intf->cur_altsetting->extralen;
79 struct usb_interface_descriptor *d;
80 struct cdc_state *info = (void *) &dev->data;
83 bool android_rndis_quirk = false;
84 struct usb_driver *driver = driver_of(intf);
85 struct usb_cdc_mdlm_desc *desc = NULL;
86 struct usb_cdc_mdlm_detail_desc *detail = NULL;
88 if (sizeof(dev->data) < sizeof(*info))
91 /* expect strict spec conformance for the descriptors, but
92 * cope with firmware which stores them in the wrong place
94 if (len == 0 && dev->udev->actconfig->extralen) {
95 /* Motorola SB4100 (and others: Brad Hards says it's
96 * from a Broadcom design) put CDC descriptors here
98 buf = dev->udev->actconfig->extra;
99 len = dev->udev->actconfig->extralen;
100 dev_dbg(&intf->dev, "CDC descriptors on config\n");
103 /* Maybe CDC descriptors are after the endpoint? This bug has
104 * been seen on some 2Wire Inc RNDIS-ish products.
107 struct usb_host_endpoint *hep;
109 hep = intf->cur_altsetting->endpoint;
116 "CDC descriptors on endpoint\n");
119 /* this assumes that if there's a non-RNDIS vendor variant
120 * of cdc-acm, it'll fail RNDIS requests cleanly.
122 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
123 is_activesync(&intf->cur_altsetting->desc) ||
124 is_wireless_rndis(&intf->cur_altsetting->desc));
126 memset(info, 0, sizeof(*info));
127 info->control = intf;
129 if (buf[1] != USB_DT_CS_INTERFACE)
132 /* use bDescriptorSubType to identify the CDC descriptors.
133 * We expect devices with CDC header and union descriptors.
134 * For CDC Ethernet we need the ethernet descriptor.
135 * For RNDIS, ignore two (pointless) CDC modem descriptors
136 * in favor of a complicated OID-based RPC scheme doing what
137 * CDC Ethernet achieves with a simple descriptor.
140 case USB_CDC_HEADER_TYPE:
142 dev_dbg(&intf->dev, "extra CDC header\n");
145 info->header = (void *) buf;
146 if (info->header->bLength != sizeof(*info->header)) {
147 dev_dbg(&intf->dev, "CDC header len %u\n",
148 info->header->bLength);
152 case USB_CDC_ACM_TYPE:
153 /* paranoia: disambiguate a "real" vendor-specific
154 * modem interface from an RNDIS non-modem.
157 struct usb_cdc_acm_descriptor *acm;
160 if (acm->bmCapabilities) {
162 "ACM capabilities %02x, "
163 "not really RNDIS?\n",
164 acm->bmCapabilities);
169 case USB_CDC_UNION_TYPE:
171 dev_dbg(&intf->dev, "extra CDC union\n");
174 info->u = (void *) buf;
175 if (info->u->bLength != sizeof(*info->u)) {
176 dev_dbg(&intf->dev, "CDC union len %u\n",
181 /* we need a master/control interface (what we're
182 * probed with) and a slave/data interface; union
183 * descriptors sort this all out.
185 info->control = usb_ifnum_to_if(dev->udev,
186 info->u->bMasterInterface0);
187 info->data = usb_ifnum_to_if(dev->udev,
188 info->u->bSlaveInterface0);
189 if (!info->control || !info->data) {
191 "master #%u/%p slave #%u/%p\n",
192 info->u->bMasterInterface0,
194 info->u->bSlaveInterface0,
196 /* fall back to hard-wiring for RNDIS */
198 android_rndis_quirk = true;
203 if (info->control != intf) {
204 dev_dbg(&intf->dev, "bogus CDC Union\n");
205 /* Ambit USB Cable Modem (and maybe others)
206 * interchanges master and slave interface.
208 if (info->data == intf) {
209 info->data = info->control;
210 info->control = intf;
215 /* some devices merge these - skip class check */
216 if (info->control == info->data)
219 /* a data interface altsetting does the real i/o */
220 d = &info->data->cur_altsetting->desc;
221 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
222 dev_dbg(&intf->dev, "slave class %u\n",
227 case USB_CDC_ETHERNET_TYPE:
229 dev_dbg(&intf->dev, "extra CDC ether\n");
232 info->ether = (void *) buf;
233 if (info->ether->bLength != sizeof(*info->ether)) {
234 dev_dbg(&intf->dev, "CDC ether len %u\n",
235 info->ether->bLength);
238 dev->hard_mtu = le16_to_cpu(
239 info->ether->wMaxSegmentSize);
240 /* because of Zaurus, we may be ignoring the host
241 * side link address we were given.
244 case USB_CDC_MDLM_TYPE:
246 dev_dbg(&intf->dev, "extra MDLM descriptor\n");
252 if (desc->bLength != sizeof(*desc))
255 if (memcmp(&desc->bGUID, mbm_guid, 16))
258 case USB_CDC_MDLM_DETAIL_TYPE:
260 dev_dbg(&intf->dev, "extra MDLM detail descriptor\n");
264 detail = (void *)buf;
266 if (detail->bGuidDescriptorType == 0) {
267 if (detail->bLength < (sizeof(*detail) + 1))
274 len -= buf[0]; /* bLength */
278 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
279 * CDC descriptors, so we'll hard-wire the interfaces and not check
282 * Some Android RNDIS devices have a CDC Union descriptor pointing
283 * to non-existing interfaces. Ignore that and attempt the same
284 * hard-wired 0 and 1 interfaces.
286 if (rndis && (!info->u || android_rndis_quirk)) {
287 info->control = usb_ifnum_to_if(dev->udev, 0);
288 info->data = usb_ifnum_to_if(dev->udev, 1);
289 if (!info->control || !info->data || info->control != intf) {
291 "rndis: master #0/%p slave #1/%p\n",
297 } else if (!info->header || !info->u || (!rndis && !info->ether)) {
298 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
299 info->header ? "" : "header ",
300 info->u ? "" : "union ",
301 info->ether ? "" : "ether ");
305 /* claim data interface and set it up ... with side effects.
306 * network traffic can't flow until an altsetting is enabled.
308 if (info->data != info->control) {
309 status = usb_driver_claim_interface(driver, info->data, dev);
313 status = usbnet_get_endpoints(dev, info->data);
315 /* ensure immediate exit from usbnet_disconnect */
316 usb_set_intfdata(info->data, NULL);
317 if (info->data != info->control)
318 usb_driver_release_interface(driver, info->data);
322 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
323 if (info->data != info->control)
325 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
326 struct usb_endpoint_descriptor *desc;
328 dev->status = &info->control->cur_altsetting->endpoint [0];
329 desc = &dev->status->desc;
330 if (!usb_endpoint_is_int_in(desc) ||
331 (le16_to_cpu(desc->wMaxPacketSize)
332 < sizeof(struct usb_cdc_notification)) ||
334 dev_dbg(&intf->dev, "bad notification endpoint\n");
338 if (rndis && !dev->status) {
339 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
340 usb_set_intfdata(info->data, NULL);
341 usb_driver_release_interface(driver, info->data);
347 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
350 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
352 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
354 struct cdc_state *info = (void *) &dev->data;
355 struct usb_driver *driver = driver_of(intf);
357 /* combined interface - nothing to do */
358 if (info->data == info->control)
361 /* disconnect master --> disconnect slave */
362 if (intf == info->control && info->data) {
363 /* ensure immediate exit from usbnet_disconnect */
364 usb_set_intfdata(info->data, NULL);
365 usb_driver_release_interface(driver, info->data);
369 /* and vice versa (just in case) */
370 else if (intf == info->data && info->control) {
371 /* ensure immediate exit from usbnet_disconnect */
372 usb_set_intfdata(info->control, NULL);
373 usb_driver_release_interface(driver, info->control);
374 info->control = NULL;
377 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
379 /* Communications Device Class, Ethernet Control model
381 * Takes two interfaces. The DATA interface is inactive till an altsetting
382 * is selected. Configuration data includes class descriptors. There's
383 * an optional status endpoint on the control interface.
385 * This should interop with whatever the 2.4 "CDCEther.c" driver
386 * (by Brad Hards) talked with, with more functionality.
389 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
391 netif_info(dev, timer, dev->net,
392 "link speeds: %u kbps up, %u kbps down\n",
393 __le32_to_cpu(speeds[0]) / 1000,
394 __le32_to_cpu(speeds[1]) / 1000);
397 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
399 struct usb_cdc_notification *event;
401 if (urb->actual_length < sizeof(*event))
404 /* SPEED_CHANGE can get split into two 8-byte packets */
405 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
406 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
410 event = urb->transfer_buffer;
411 switch (event->bNotificationType) {
412 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
413 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
414 event->wValue ? "on" : "off");
415 usbnet_link_change(dev, !!event->wValue, 0);
417 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
418 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
420 if (urb->actual_length != (sizeof(*event) + 8))
421 set_bit(EVENT_STS_SPLIT, &dev->flags);
423 dumpspeed(dev, (__le32 *) &event[1]);
425 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
426 * but there are no standard formats for the response data.
429 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
430 event->bNotificationType);
434 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
436 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
439 struct cdc_state *info = (void *) &dev->data;
441 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
442 < sizeof(struct cdc_state)));
444 status = usbnet_generic_cdc_bind(dev, intf);
448 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
450 usb_set_intfdata(info->data, NULL);
451 usb_driver_release_interface(driver_of(intf), info->data);
455 /* FIXME cdc-ether has some multicast code too, though it complains
456 * in routine cases. info->ether describes the multicast support.
457 * Implement that here, manipulating the cdc filter as needed.
461 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
463 static const struct driver_info cdc_info = {
464 .description = "CDC Ethernet Device",
465 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
466 .bind = usbnet_cdc_bind,
467 .unbind = usbnet_cdc_unbind,
468 .status = usbnet_cdc_status,
469 .manage_power = usbnet_manage_power,
472 static const struct driver_info wwan_info = {
473 .description = "Mobile Broadband Network Device",
475 .bind = usbnet_cdc_bind,
476 .unbind = usbnet_cdc_unbind,
477 .status = usbnet_cdc_status,
478 .manage_power = usbnet_manage_power,
481 /*-------------------------------------------------------------------------*/
483 #define HUAWEI_VENDOR_ID 0x12D1
484 #define NOVATEL_VENDOR_ID 0x1410
485 #define ZTE_VENDOR_ID 0x19D2
486 #define DELL_VENDOR_ID 0x413C
487 #define REALTEK_VENDOR_ID 0x0bda
488 #define SAMSUNG_VENDOR_ID 0x04e8
490 static const struct usb_device_id products[] = {
493 * First blacklist any products that are egregiously nonconformant
494 * with the CDC Ethernet specs. Minor braindamage we cope with; when
495 * they're not even trying, needing a separate driver is only the first
496 * of the differences to show up.
499 #define ZAURUS_MASTER_INTERFACE \
500 .bInterfaceClass = USB_CLASS_COMM, \
501 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
502 .bInterfaceProtocol = USB_CDC_PROTO_NONE
504 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
505 * wire-incompatible with true CDC Ethernet implementations.
506 * (And, it seems, needlessly so...)
509 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
510 | USB_DEVICE_ID_MATCH_DEVICE,
513 ZAURUS_MASTER_INTERFACE,
517 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
518 * (later models especially) may have shipped only with firmware
519 * advertising false "CDC MDLM" compatibility ... but we're not
520 * clear which models did that, so for now let's assume the worst.
523 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
524 | USB_DEVICE_ID_MATCH_DEVICE,
526 .idProduct = 0x8005, /* A-300 */
527 ZAURUS_MASTER_INTERFACE,
530 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
531 | USB_DEVICE_ID_MATCH_DEVICE,
533 .idProduct = 0x8006, /* B-500/SL-5600 */
534 ZAURUS_MASTER_INTERFACE,
537 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
538 | USB_DEVICE_ID_MATCH_DEVICE,
540 .idProduct = 0x8007, /* C-700 */
541 ZAURUS_MASTER_INTERFACE,
544 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
545 | USB_DEVICE_ID_MATCH_DEVICE,
547 .idProduct = 0x9031, /* C-750 C-760 */
548 ZAURUS_MASTER_INTERFACE,
551 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
552 | USB_DEVICE_ID_MATCH_DEVICE,
554 .idProduct = 0x9032, /* SL-6000 */
555 ZAURUS_MASTER_INTERFACE,
558 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
559 | USB_DEVICE_ID_MATCH_DEVICE,
561 /* reported with some C860 units */
562 .idProduct = 0x9050, /* C-860 */
563 ZAURUS_MASTER_INTERFACE,
567 /* Olympus has some models with a Zaurus-compatible option.
568 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
571 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
572 | USB_DEVICE_ID_MATCH_DEVICE,
574 .idProduct = 0x0F02, /* R-1000 */
575 ZAURUS_MASTER_INTERFACE,
579 /* LG Electronics VL600 wants additional headers on every frame */
581 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
582 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
586 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
588 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
589 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
593 /* Novatel USB551L and MC551 - handled by qmi_wwan */
595 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
596 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
600 /* Novatel E362 - handled by qmi_wwan */
602 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
603 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
607 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
609 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
610 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
614 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
616 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
617 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
621 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
623 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
624 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
628 /* Novatel Expedite E371 - handled by qmi_wwan */
630 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
631 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
635 /* AnyDATA ADU960S - handled by qmi_wwan */
637 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
638 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
642 /* Huawei E1820 - handled by qmi_wwan */
644 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
648 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
650 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
651 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
655 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
657 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
658 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
662 /* Samsung USB Ethernet Adapters */
664 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
665 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
671 * CDC Ether uses two interfaces, not necessarily consecutive.
672 * We match the main interface, ignoring the optional device
673 * class so we could handle devices that aren't exclusively
676 * NOTE: this match must come AFTER entries blacklisting devices
677 * because of bugs/quirks in a given product (like Zaurus, above).
680 /* ZTE (Vodafone) K3805-Z */
681 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
682 USB_CDC_SUBCLASS_ETHERNET,
684 .driver_info = (unsigned long)&wwan_info,
686 /* ZTE (Vodafone) K3806-Z */
687 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
688 USB_CDC_SUBCLASS_ETHERNET,
690 .driver_info = (unsigned long)&wwan_info,
692 /* ZTE (Vodafone) K4510-Z */
693 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
694 USB_CDC_SUBCLASS_ETHERNET,
696 .driver_info = (unsigned long)&wwan_info,
698 /* ZTE (Vodafone) K3770-Z */
699 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
700 USB_CDC_SUBCLASS_ETHERNET,
702 .driver_info = (unsigned long)&wwan_info,
704 /* ZTE (Vodafone) K3772-Z */
705 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
706 USB_CDC_SUBCLASS_ETHERNET,
708 .driver_info = (unsigned long)&wwan_info,
711 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
712 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
713 .driver_info = (kernel_ulong_t) &wwan_info,
715 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
717 .driver_info = (unsigned long) &cdc_info,
719 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
721 .driver_info = (unsigned long)&wwan_info,
724 /* Various Huawei modems with a network port like the UMG1831 */
725 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
726 USB_CDC_SUBCLASS_ETHERNET, 255),
727 .driver_info = (unsigned long)&wwan_info,
731 MODULE_DEVICE_TABLE(usb, products);
733 static struct usb_driver cdc_driver = {
735 .id_table = products,
736 .probe = usbnet_probe,
737 .disconnect = usbnet_disconnect,
738 .suspend = usbnet_suspend,
739 .resume = usbnet_resume,
740 .reset_resume = usbnet_resume,
741 .supports_autosuspend = 1,
742 .disable_hub_initiated_lpm = 1,
745 module_usb_driver(cdc_driver);
747 MODULE_AUTHOR("David Brownell");
748 MODULE_DESCRIPTION("USB CDC Ethernet devices");
749 MODULE_LICENSE("GPL");