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);
57 static int is_novatel_rndis(struct usb_interface_descriptor *desc)
59 return (desc->bInterfaceClass == USB_CLASS_MISC &&
60 desc->bInterfaceSubClass == 4 &&
61 desc->bInterfaceProtocol == 1);
66 #define is_rndis(desc) 0
67 #define is_activesync(desc) 0
68 #define is_wireless_rndis(desc) 0
69 #define is_novatel_rndis(desc) 0
73 static const u8 mbm_guid[16] = {
74 0xa3, 0x17, 0xa8, 0x8b, 0x04, 0x5e, 0x4f, 0x01,
75 0xa6, 0x07, 0xc0, 0xff, 0xcb, 0x7e, 0x39, 0x2a,
78 static void usbnet_cdc_update_filter(struct usbnet *dev)
80 struct cdc_state *info = (void *) &dev->data;
81 struct usb_interface *intf = info->control;
82 struct net_device *net = dev->net;
84 u16 cdc_filter = USB_CDC_PACKET_TYPE_DIRECTED
85 | USB_CDC_PACKET_TYPE_BROADCAST;
87 /* filtering on the device is an optional feature and not worth
88 * the hassle so we just roughly care about snooping and if any
89 * multicast is requested, we take every multicast
91 if (net->flags & IFF_PROMISC)
92 cdc_filter |= USB_CDC_PACKET_TYPE_PROMISCUOUS;
93 if (!netdev_mc_empty(net) || (net->flags & IFF_ALLMULTI))
94 cdc_filter |= USB_CDC_PACKET_TYPE_ALL_MULTICAST;
96 usb_control_msg(dev->udev,
97 usb_sndctrlpipe(dev->udev, 0),
98 USB_CDC_SET_ETHERNET_PACKET_FILTER,
99 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
101 intf->cur_altsetting->desc.bInterfaceNumber,
108 /* probes control interface, claims data interface, collects the bulk
109 * endpoints, activates data interface (if needed), maybe sets MTU.
110 * all pure cdc, except for certain firmware workarounds, and knowing
111 * that rndis uses one different rule.
113 int usbnet_generic_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
115 u8 *buf = intf->cur_altsetting->extra;
116 int len = intf->cur_altsetting->extralen;
117 struct usb_interface_descriptor *d;
118 struct cdc_state *info = (void *) &dev->data;
121 bool android_rndis_quirk = false;
122 struct usb_driver *driver = driver_of(intf);
123 struct usb_cdc_parsed_header header;
125 if (sizeof(dev->data) < sizeof(*info))
128 /* expect strict spec conformance for the descriptors, but
129 * cope with firmware which stores them in the wrong place
131 if (len == 0 && dev->udev->actconfig->extralen) {
132 /* Motorola SB4100 (and others: Brad Hards says it's
133 * from a Broadcom design) put CDC descriptors here
135 buf = dev->udev->actconfig->extra;
136 len = dev->udev->actconfig->extralen;
137 dev_dbg(&intf->dev, "CDC descriptors on config\n");
140 /* Maybe CDC descriptors are after the endpoint? This bug has
141 * been seen on some 2Wire Inc RNDIS-ish products.
144 struct usb_host_endpoint *hep;
146 hep = intf->cur_altsetting->endpoint;
153 "CDC descriptors on endpoint\n");
156 /* this assumes that if there's a non-RNDIS vendor variant
157 * of cdc-acm, it'll fail RNDIS requests cleanly.
159 rndis = (is_rndis(&intf->cur_altsetting->desc) ||
160 is_activesync(&intf->cur_altsetting->desc) ||
161 is_wireless_rndis(&intf->cur_altsetting->desc) ||
162 is_novatel_rndis(&intf->cur_altsetting->desc));
164 memset(info, 0, sizeof(*info));
165 info->control = intf;
167 cdc_parse_cdc_header(&header, intf, buf, len);
169 info->u = header.usb_cdc_union_desc;
170 info->header = header.usb_cdc_header_desc;
171 info->ether = header.usb_cdc_ether_desc;
175 else /* in that case a quirk is mandatory */
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.
182 info->control = usb_ifnum_to_if(dev->udev, info->u->bMasterInterface0);
183 info->data = usb_ifnum_to_if(dev->udev, info->u->bSlaveInterface0);
184 if (!info->control || !info->data) {
186 "master #%u/%p slave #%u/%p\n",
187 info->u->bMasterInterface0,
189 info->u->bSlaveInterface0,
191 /* fall back to hard-wiring for RNDIS */
193 android_rndis_quirk = true;
198 if (info->control != intf) {
199 dev_dbg(&intf->dev, "bogus CDC Union\n");
200 /* Ambit USB Cable Modem (and maybe others)
201 * interchanges master and slave interface.
203 if (info->data == intf) {
204 info->data = info->control;
205 info->control = intf;
210 /* some devices merge these - skip class check */
211 if (info->control == info->data)
214 /* a data interface altsetting does the real i/o */
215 d = &info->data->cur_altsetting->desc;
216 if (d->bInterfaceClass != USB_CLASS_CDC_DATA) {
217 dev_dbg(&intf->dev, "slave class %u\n", d->bInterfaceClass);
221 if (rndis && header.usb_cdc_acm_descriptor &&
222 header.usb_cdc_acm_descriptor->bmCapabilities) {
224 "ACM capabilities %02x, not really RNDIS?\n",
225 header.usb_cdc_acm_descriptor->bmCapabilities);
229 if (header.usb_cdc_ether_desc && info->ether->wMaxSegmentSize) {
230 dev->hard_mtu = le16_to_cpu(info->ether->wMaxSegmentSize);
231 /* because of Zaurus, we may be ignoring the host
232 * side link address we were given.
236 if (header.usb_cdc_mdlm_desc &&
237 memcmp(header.usb_cdc_mdlm_desc->bGUID, mbm_guid, 16)) {
238 dev_dbg(&intf->dev, "GUID doesn't match\n");
242 if (header.usb_cdc_mdlm_detail_desc &&
243 header.usb_cdc_mdlm_detail_desc->bLength <
244 (sizeof(struct usb_cdc_mdlm_detail_desc) + 1)) {
245 dev_dbg(&intf->dev, "Descriptor too short\n");
251 /* Microsoft ActiveSync based and some regular RNDIS devices lack the
252 * CDC descriptors, so we'll hard-wire the interfaces and not check
255 * Some Android RNDIS devices have a CDC Union descriptor pointing
256 * to non-existing interfaces. Ignore that and attempt the same
257 * hard-wired 0 and 1 interfaces.
259 if (rndis && (!info->u || android_rndis_quirk)) {
260 info->control = usb_ifnum_to_if(dev->udev, 0);
261 info->data = usb_ifnum_to_if(dev->udev, 1);
262 if (!info->control || !info->data || info->control != intf) {
264 "rndis: master #0/%p slave #1/%p\n",
270 } else if (!info->header || (!rndis && !info->ether)) {
271 dev_dbg(&intf->dev, "missing cdc %s%s%sdescriptor\n",
272 info->header ? "" : "header ",
273 info->u ? "" : "union ",
274 info->ether ? "" : "ether ");
278 /* claim data interface and set it up ... with side effects.
279 * network traffic can't flow until an altsetting is enabled.
281 if (info->data != info->control) {
282 status = usb_driver_claim_interface(driver, info->data, dev);
286 status = usbnet_get_endpoints(dev, info->data);
288 /* ensure immediate exit from usbnet_disconnect */
289 usb_set_intfdata(info->data, NULL);
290 if (info->data != info->control)
291 usb_driver_release_interface(driver, info->data);
295 /* status endpoint: optional for CDC Ethernet, not RNDIS (or ACM) */
296 if (info->data != info->control)
298 if (info->control->cur_altsetting->desc.bNumEndpoints == 1) {
299 struct usb_endpoint_descriptor *desc;
301 dev->status = &info->control->cur_altsetting->endpoint[0];
302 desc = &dev->status->desc;
303 if (!usb_endpoint_is_int_in(desc) ||
304 (le16_to_cpu(desc->wMaxPacketSize)
305 < sizeof(struct usb_cdc_notification)) ||
307 dev_dbg(&intf->dev, "bad notification endpoint\n");
311 if (rndis && !dev->status) {
312 dev_dbg(&intf->dev, "missing RNDIS status endpoint\n");
313 usb_set_intfdata(info->data, NULL);
314 usb_driver_release_interface(driver, info->data);
321 dev_info(&dev->udev->dev, "bad CDC descriptors\n");
324 EXPORT_SYMBOL_GPL(usbnet_generic_cdc_bind);
327 /* like usbnet_generic_cdc_bind() but handles filter initialization
330 int usbnet_ether_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
334 rv = usbnet_generic_cdc_bind(dev, intf);
338 /* Some devices don't initialise properly. In particular
339 * the packet filter is not reset. There are devices that
340 * don't do reset all the way. So the packet filter should
341 * be set to a sane initial value.
343 usbnet_cdc_update_filter(dev);
348 EXPORT_SYMBOL_GPL(usbnet_ether_cdc_bind);
350 void usbnet_cdc_unbind(struct usbnet *dev, struct usb_interface *intf)
352 struct cdc_state *info = (void *) &dev->data;
353 struct usb_driver *driver = driver_of(intf);
355 /* combined interface - nothing to do */
356 if (info->data == info->control)
359 /* disconnect master --> disconnect slave */
360 if (intf == info->control && info->data) {
361 /* ensure immediate exit from usbnet_disconnect */
362 usb_set_intfdata(info->data, NULL);
363 usb_driver_release_interface(driver, info->data);
367 /* and vice versa (just in case) */
368 else if (intf == info->data && info->control) {
369 /* ensure immediate exit from usbnet_disconnect */
370 usb_set_intfdata(info->control, NULL);
371 usb_driver_release_interface(driver, info->control);
372 info->control = NULL;
375 EXPORT_SYMBOL_GPL(usbnet_cdc_unbind);
377 /* Communications Device Class, Ethernet Control model
379 * Takes two interfaces. The DATA interface is inactive till an altsetting
380 * is selected. Configuration data includes class descriptors. There's
381 * an optional status endpoint on the control interface.
383 * This should interop with whatever the 2.4 "CDCEther.c" driver
384 * (by Brad Hards) talked with, with more functionality.
387 static void dumpspeed(struct usbnet *dev, __le32 *speeds)
389 netif_info(dev, timer, dev->net,
390 "link speeds: %u kbps up, %u kbps down\n",
391 __le32_to_cpu(speeds[0]) / 1000,
392 __le32_to_cpu(speeds[1]) / 1000);
395 void usbnet_cdc_status(struct usbnet *dev, struct urb *urb)
397 struct usb_cdc_notification *event;
399 if (urb->actual_length < sizeof(*event))
402 /* SPEED_CHANGE can get split into two 8-byte packets */
403 if (test_and_clear_bit(EVENT_STS_SPLIT, &dev->flags)) {
404 dumpspeed(dev, (__le32 *) urb->transfer_buffer);
408 event = urb->transfer_buffer;
409 switch (event->bNotificationType) {
410 case USB_CDC_NOTIFY_NETWORK_CONNECTION:
411 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
412 event->wValue ? "on" : "off");
413 usbnet_link_change(dev, !!event->wValue, 0);
415 case USB_CDC_NOTIFY_SPEED_CHANGE: /* tx/rx rates */
416 netif_dbg(dev, timer, dev->net, "CDC: speed change (len %d)\n",
418 if (urb->actual_length != (sizeof(*event) + 8))
419 set_bit(EVENT_STS_SPLIT, &dev->flags);
421 dumpspeed(dev, (__le32 *) &event[1]);
423 /* USB_CDC_NOTIFY_RESPONSE_AVAILABLE can happen too (e.g. RNDIS),
424 * but there are no standard formats for the response data.
427 netdev_err(dev->net, "CDC: unexpected notification %02x!\n",
428 event->bNotificationType);
432 EXPORT_SYMBOL_GPL(usbnet_cdc_status);
434 int usbnet_cdc_bind(struct usbnet *dev, struct usb_interface *intf)
437 struct cdc_state *info = (void *) &dev->data;
439 BUILD_BUG_ON((sizeof(((struct usbnet *)0)->data)
440 < sizeof(struct cdc_state)));
442 status = usbnet_ether_cdc_bind(dev, intf);
446 status = usbnet_get_ethernet_addr(dev, info->ether->iMACAddress);
448 usb_set_intfdata(info->data, NULL);
449 usb_driver_release_interface(driver_of(intf), info->data);
455 EXPORT_SYMBOL_GPL(usbnet_cdc_bind);
457 static int usbnet_cdc_zte_bind(struct usbnet *dev, struct usb_interface *intf)
459 int status = usbnet_cdc_bind(dev, intf);
461 if (!status && (dev->net->dev_addr[0] & 0x02))
462 eth_hw_addr_random(dev->net);
467 /* Make sure packets have correct destination MAC address
469 * A firmware bug observed on some devices (ZTE MF823/831/910) is that the
470 * device sends packets with a static, bogus, random MAC address (event if
471 * device MAC address has been updated). Always set MAC address to that of the
474 static int usbnet_cdc_zte_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
476 if (skb->len < ETH_HLEN || !(skb->data[0] & 0x02))
479 skb_reset_mac_header(skb);
480 ether_addr_copy(eth_hdr(skb)->h_dest, dev->net->dev_addr);
485 /* Ensure correct link state
487 * Some devices (ZTE MF823/831/910) export two carrier on notifications when
488 * connected. This causes the link state to be incorrect. Work around this by
489 * always setting the state to off, then on.
491 static void usbnet_cdc_zte_status(struct usbnet *dev, struct urb *urb)
493 struct usb_cdc_notification *event;
495 if (urb->actual_length < sizeof(*event))
498 event = urb->transfer_buffer;
500 if (event->bNotificationType != USB_CDC_NOTIFY_NETWORK_CONNECTION) {
501 usbnet_cdc_status(dev, urb);
505 netif_dbg(dev, timer, dev->net, "CDC: carrier %s\n",
506 event->wValue ? "on" : "off");
509 netif_carrier_ok(dev->net))
510 netif_carrier_off(dev->net);
512 usbnet_link_change(dev, !!event->wValue, 0);
515 static const struct driver_info cdc_info = {
516 .description = "CDC Ethernet Device",
517 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
518 .bind = usbnet_cdc_bind,
519 .unbind = usbnet_cdc_unbind,
520 .status = usbnet_cdc_status,
521 .set_rx_mode = usbnet_cdc_update_filter,
522 .manage_power = usbnet_manage_power,
525 static const struct driver_info zte_cdc_info = {
526 .description = "ZTE CDC Ethernet Device",
527 .flags = FLAG_ETHER | FLAG_POINTTOPOINT,
528 .bind = usbnet_cdc_zte_bind,
529 .unbind = usbnet_cdc_unbind,
530 .status = usbnet_cdc_zte_status,
531 .set_rx_mode = usbnet_cdc_update_filter,
532 .manage_power = usbnet_manage_power,
533 .rx_fixup = usbnet_cdc_zte_rx_fixup,
536 static const struct driver_info wwan_info = {
537 .description = "Mobile Broadband Network Device",
539 .bind = usbnet_cdc_bind,
540 .unbind = usbnet_cdc_unbind,
541 .status = usbnet_cdc_status,
542 .set_rx_mode = usbnet_cdc_update_filter,
543 .manage_power = usbnet_manage_power,
546 /*-------------------------------------------------------------------------*/
548 #define HUAWEI_VENDOR_ID 0x12D1
549 #define NOVATEL_VENDOR_ID 0x1410
550 #define ZTE_VENDOR_ID 0x19D2
551 #define DELL_VENDOR_ID 0x413C
552 #define REALTEK_VENDOR_ID 0x0bda
553 #define SAMSUNG_VENDOR_ID 0x04e8
554 #define LENOVO_VENDOR_ID 0x17ef
555 #define LINKSYS_VENDOR_ID 0x13b1
556 #define NVIDIA_VENDOR_ID 0x0955
557 #define HP_VENDOR_ID 0x03f0
558 #define MICROSOFT_VENDOR_ID 0x045e
559 #define UBLOX_VENDOR_ID 0x1546
560 #define TPLINK_VENDOR_ID 0x2357
561 #define AQUANTIA_VENDOR_ID 0x2eca
562 #define ASIX_VENDOR_ID 0x0b95
564 static const struct usb_device_id products[] = {
567 * First blacklist any products that are egregiously nonconformant
568 * with the CDC Ethernet specs. Minor braindamage we cope with; when
569 * they're not even trying, needing a separate driver is only the first
570 * of the differences to show up.
573 #define ZAURUS_MASTER_INTERFACE \
574 .bInterfaceClass = USB_CLASS_COMM, \
575 .bInterfaceSubClass = USB_CDC_SUBCLASS_ETHERNET, \
576 .bInterfaceProtocol = USB_CDC_PROTO_NONE
578 /* SA-1100 based Sharp Zaurus ("collie"), or compatible;
579 * wire-incompatible with true CDC Ethernet implementations.
580 * (And, it seems, needlessly so...)
583 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
584 | USB_DEVICE_ID_MATCH_DEVICE,
587 ZAURUS_MASTER_INTERFACE,
591 /* PXA-25x based Sharp Zaurii. Note that it seems some of these
592 * (later models especially) may have shipped only with firmware
593 * advertising false "CDC MDLM" compatibility ... but we're not
594 * clear which models did that, so for now let's assume the worst.
597 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
598 | USB_DEVICE_ID_MATCH_DEVICE,
600 .idProduct = 0x8005, /* A-300 */
601 ZAURUS_MASTER_INTERFACE,
604 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
605 | USB_DEVICE_ID_MATCH_DEVICE,
607 .idProduct = 0x8006, /* B-500/SL-5600 */
608 ZAURUS_MASTER_INTERFACE,
611 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
612 | USB_DEVICE_ID_MATCH_DEVICE,
614 .idProduct = 0x8007, /* C-700 */
615 ZAURUS_MASTER_INTERFACE,
618 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
619 | USB_DEVICE_ID_MATCH_DEVICE,
621 .idProduct = 0x9031, /* C-750 C-760 */
622 ZAURUS_MASTER_INTERFACE,
625 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
626 | USB_DEVICE_ID_MATCH_DEVICE,
628 .idProduct = 0x9032, /* SL-6000 */
629 ZAURUS_MASTER_INTERFACE,
632 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
633 | USB_DEVICE_ID_MATCH_DEVICE,
635 /* reported with some C860 units */
636 .idProduct = 0x9050, /* C-860 */
637 ZAURUS_MASTER_INTERFACE,
641 /* Olympus has some models with a Zaurus-compatible option.
642 * R-1000 uses a FreeScale i.MXL cpu (ARMv4T)
645 .match_flags = USB_DEVICE_ID_MATCH_INT_INFO
646 | USB_DEVICE_ID_MATCH_DEVICE,
648 .idProduct = 0x0F02, /* R-1000 */
649 ZAURUS_MASTER_INTERFACE,
653 /* LG Electronics VL600 wants additional headers on every frame */
655 USB_DEVICE_AND_INTERFACE_INFO(0x1004, 0x61aa, USB_CLASS_COMM,
656 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
660 /* Logitech Harmony 900 - uses the pseudo-MDLM (BLAN) driver */
662 USB_DEVICE_AND_INTERFACE_INFO(0x046d, 0xc11f, USB_CLASS_COMM,
663 USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
667 /* Novatel USB551L and MC551 - handled by qmi_wwan */
669 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0xB001, USB_CLASS_COMM,
670 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
674 /* Novatel E362 - handled by qmi_wwan */
676 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9010, USB_CLASS_COMM,
677 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
681 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
683 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8195, USB_CLASS_COMM,
684 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
688 /* Dell Wireless 5800 (Novatel E362) - handled by qmi_wwan */
690 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x8196, USB_CLASS_COMM,
691 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
695 /* Dell Wireless 5804 (Novatel E371) - handled by qmi_wwan */
697 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x819b, USB_CLASS_COMM,
698 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
702 /* Novatel Expedite E371 - handled by qmi_wwan */
704 USB_DEVICE_AND_INTERFACE_INFO(NOVATEL_VENDOR_ID, 0x9011, USB_CLASS_COMM,
705 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
709 /* HP lt2523 (Novatel E371) - handled by qmi_wwan */
711 USB_DEVICE_AND_INTERFACE_INFO(HP_VENDOR_ID, 0x421d, USB_CLASS_COMM,
712 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
716 /* AnyDATA ADU960S - handled by qmi_wwan */
718 USB_DEVICE_AND_INTERFACE_INFO(0x16d5, 0x650a, USB_CLASS_COMM,
719 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
723 /* Huawei E1820 - handled by qmi_wwan */
725 USB_DEVICE_INTERFACE_NUMBER(HUAWEI_VENDOR_ID, 0x14ac, 1),
729 /* Realtek RTL8152 Based USB 2.0 Ethernet Adapters */
731 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8152, USB_CLASS_COMM,
732 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
736 /* Realtek RTL8153 Based USB 3.0 Ethernet Adapters */
738 USB_DEVICE_AND_INTERFACE_INFO(REALTEK_VENDOR_ID, 0x8153, USB_CLASS_COMM,
739 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
743 /* Samsung USB Ethernet Adapters */
745 USB_DEVICE_AND_INTERFACE_INFO(SAMSUNG_VENDOR_ID, 0xa101, USB_CLASS_COMM,
746 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
750 #if IS_ENABLED(CONFIG_USB_RTL8152)
751 /* Linksys USB3GIGV1 Ethernet Adapter */
753 USB_DEVICE_AND_INTERFACE_INFO(LINKSYS_VENDOR_ID, 0x0041, USB_CLASS_COMM,
754 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
759 /* ThinkPad USB-C Dock (based on Realtek RTL8153) */
761 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3062, USB_CLASS_COMM,
762 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
766 /* ThinkPad Thunderbolt 3 Dock (based on Realtek RTL8153) */
768 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x3069, USB_CLASS_COMM,
769 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
773 /* Lenovo Thinkpad USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
775 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7205, USB_CLASS_COMM,
776 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
780 /* Lenovo USB C to Ethernet Adapter (based on Realtek RTL8153) */
782 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x720c, USB_CLASS_COMM,
783 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
787 /* Lenovo USB-C Travel Hub (based on Realtek RTL8153) */
789 USB_DEVICE_AND_INTERFACE_INFO(LENOVO_VENDOR_ID, 0x7214, USB_CLASS_COMM,
790 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
794 /* NVIDIA Tegra USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
796 USB_DEVICE_AND_INTERFACE_INFO(NVIDIA_VENDOR_ID, 0x09ff, USB_CLASS_COMM,
797 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
801 /* Microsoft Surface 2 dock (based on Realtek RTL8152) */
803 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07ab, USB_CLASS_COMM,
804 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
808 /* Microsoft Surface 3 dock (based on Realtek RTL8153) */
810 USB_DEVICE_AND_INTERFACE_INFO(MICROSOFT_VENDOR_ID, 0x07c6, USB_CLASS_COMM,
811 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
815 /* TP-LINK UE300 USB 3.0 Ethernet Adapters (based on Realtek RTL8153) */
817 USB_DEVICE_AND_INTERFACE_INFO(TPLINK_VENDOR_ID, 0x0601, USB_CLASS_COMM,
818 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
822 /* Aquantia AQtion USB to 5GbE Controller (based on AQC111U) */
824 USB_DEVICE_AND_INTERFACE_INFO(AQUANTIA_VENDOR_ID, 0xc101,
825 USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
830 /* ASIX USB 3.1 Gen1 to 5G Multi-Gigabit Ethernet Adapter(based on AQC111U) */
832 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2790, USB_CLASS_COMM,
833 USB_CDC_SUBCLASS_ETHERNET,
838 /* ASIX USB 3.1 Gen1 to 2.5G Multi-Gigabit Ethernet Adapter(based on AQC112U) */
840 USB_DEVICE_AND_INTERFACE_INFO(ASIX_VENDOR_ID, 0x2791, USB_CLASS_COMM,
841 USB_CDC_SUBCLASS_ETHERNET,
846 /* USB-C 3.1 to 5GBASE-T Ethernet Adapter (based on AQC111U) */
848 USB_DEVICE_AND_INTERFACE_INFO(0x20f4, 0xe05a, USB_CLASS_COMM,
849 USB_CDC_SUBCLASS_ETHERNET,
854 /* QNAP QNA-UC5G1T USB to 5GbE Adapter (based on AQC111U) */
856 USB_DEVICE_AND_INTERFACE_INFO(0x1c04, 0x0015, USB_CLASS_COMM,
857 USB_CDC_SUBCLASS_ETHERNET,
864 * CDC Ether uses two interfaces, not necessarily consecutive.
865 * We match the main interface, ignoring the optional device
866 * class so we could handle devices that aren't exclusively
869 * NOTE: this match must come AFTER entries blacklisting devices
870 * because of bugs/quirks in a given product (like Zaurus, above).
873 /* ZTE (Vodafone) K3805-Z */
874 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1003, USB_CLASS_COMM,
875 USB_CDC_SUBCLASS_ETHERNET,
877 .driver_info = (unsigned long)&wwan_info,
879 /* ZTE (Vodafone) K3806-Z */
880 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1015, USB_CLASS_COMM,
881 USB_CDC_SUBCLASS_ETHERNET,
883 .driver_info = (unsigned long)&wwan_info,
885 /* ZTE (Vodafone) K4510-Z */
886 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1173, USB_CLASS_COMM,
887 USB_CDC_SUBCLASS_ETHERNET,
889 .driver_info = (unsigned long)&wwan_info,
891 /* ZTE (Vodafone) K3770-Z */
892 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1177, USB_CLASS_COMM,
893 USB_CDC_SUBCLASS_ETHERNET,
895 .driver_info = (unsigned long)&wwan_info,
897 /* ZTE (Vodafone) K3772-Z */
898 USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1181, USB_CLASS_COMM,
899 USB_CDC_SUBCLASS_ETHERNET,
901 .driver_info = (unsigned long)&wwan_info,
904 USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
905 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
906 .driver_info = (kernel_ulong_t) &wwan_info,
908 /* Dell DW5580 modules */
909 USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, 0x81ba, USB_CLASS_COMM,
910 USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
911 .driver_info = (kernel_ulong_t)&wwan_info,
913 /* Huawei ME906 and ME909 */
914 USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x15c1, USB_CLASS_COMM,
915 USB_CDC_SUBCLASS_ETHERNET,
917 .driver_info = (unsigned long)&wwan_info,
920 USB_VENDOR_AND_INTERFACE_INFO(ZTE_VENDOR_ID, USB_CLASS_COMM,
921 USB_CDC_SUBCLASS_ETHERNET,
923 .driver_info = (unsigned long)&zte_cdc_info,
926 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1143, USB_CLASS_COMM,
927 USB_CDC_SUBCLASS_ETHERNET,
929 .driver_info = (unsigned long)&wwan_info,
932 USB_DEVICE_AND_INTERFACE_INFO(UBLOX_VENDOR_ID, 0x1104, USB_CLASS_COMM,
933 USB_CDC_SUBCLASS_ETHERNET,
935 .driver_info = (unsigned long)&wwan_info,
937 /* Cinterion PLS8 modem by GEMALTO */
938 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0061, USB_CLASS_COMM,
939 USB_CDC_SUBCLASS_ETHERNET,
941 .driver_info = (unsigned long)&wwan_info,
943 /* Cinterion AHS3 modem by GEMALTO */
944 USB_DEVICE_AND_INTERFACE_INFO(0x1e2d, 0x0055, USB_CLASS_COMM,
945 USB_CDC_SUBCLASS_ETHERNET,
947 .driver_info = (unsigned long)&wwan_info,
949 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
951 .driver_info = (unsigned long) &cdc_info,
953 USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_MDLM,
955 .driver_info = (unsigned long)&wwan_info,
958 /* Various Huawei modems with a network port like the UMG1831 */
959 USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, USB_CLASS_COMM,
960 USB_CDC_SUBCLASS_ETHERNET, 255),
961 .driver_info = (unsigned long)&wwan_info,
965 MODULE_DEVICE_TABLE(usb, products);
967 static struct usb_driver cdc_driver = {
969 .id_table = products,
970 .probe = usbnet_probe,
971 .disconnect = usbnet_disconnect,
972 .suspend = usbnet_suspend,
973 .resume = usbnet_resume,
974 .reset_resume = usbnet_resume,
975 .supports_autosuspend = 1,
976 .disable_hub_initiated_lpm = 1,
979 module_usb_driver(cdc_driver);
981 MODULE_AUTHOR("David Brownell");
982 MODULE_DESCRIPTION("USB CDC Ethernet devices");
983 MODULE_LICENSE("GPL");