net: convert multicast list to list_head
[linux-2.6.git] / drivers / net / usb / dm9601.c
1 /*
2  * Davicom DM9601 USB 1.1 10/100Mbps ethernet devices
3  *
4  * Peter Korsgaard <jacmet@sunsite.dk>
5  *
6  * This file is licensed under the terms of the GNU General Public License
7  * version 2.  This program is licensed "as is" without any warranty of any
8  * kind, whether express or implied.
9  */
10
11 //#define DEBUG
12
13 #include <linux/module.h>
14 #include <linux/sched.h>
15 #include <linux/stddef.h>
16 #include <linux/init.h>
17 #include <linux/netdevice.h>
18 #include <linux/etherdevice.h>
19 #include <linux/ethtool.h>
20 #include <linux/mii.h>
21 #include <linux/usb.h>
22 #include <linux/crc32.h>
23 #include <linux/usb/usbnet.h>
24
25 /* datasheet:
26  http://ptm2.cc.utu.fi/ftp/network/cards/DM9601/From_NET/DM9601-DS-P01-930914.pdf
27 */
28
29 /* control requests */
30 #define DM_READ_REGS    0x00
31 #define DM_WRITE_REGS   0x01
32 #define DM_READ_MEMS    0x02
33 #define DM_WRITE_REG    0x03
34 #define DM_WRITE_MEMS   0x05
35 #define DM_WRITE_MEM    0x07
36
37 /* registers */
38 #define DM_NET_CTRL     0x00
39 #define DM_RX_CTRL      0x05
40 #define DM_SHARED_CTRL  0x0b
41 #define DM_SHARED_ADDR  0x0c
42 #define DM_SHARED_DATA  0x0d    /* low + high */
43 #define DM_PHY_ADDR     0x10    /* 6 bytes */
44 #define DM_MCAST_ADDR   0x16    /* 8 bytes */
45 #define DM_GPR_CTRL     0x1e
46 #define DM_GPR_DATA     0x1f
47
48 #define DM_MAX_MCAST    64
49 #define DM_MCAST_SIZE   8
50 #define DM_EEPROM_LEN   256
51 #define DM_TX_OVERHEAD  2       /* 2 byte header */
52 #define DM_RX_OVERHEAD  7       /* 3 byte header + 4 byte crc tail */
53 #define DM_TIMEOUT      1000
54
55
56 static int dm_read(struct usbnet *dev, u8 reg, u16 length, void *data)
57 {
58         void *buf;
59         int err = -ENOMEM;
60
61         netdev_dbg(dev->net, "dm_read() reg=0x%02x length=%d\n", reg, length);
62
63         buf = kmalloc(length, GFP_KERNEL);
64         if (!buf)
65                 goto out;
66
67         err = usb_control_msg(dev->udev,
68                               usb_rcvctrlpipe(dev->udev, 0),
69                               DM_READ_REGS,
70                               USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
71                               0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
72         if (err == length)
73                 memcpy(data, buf, length);
74         else if (err >= 0)
75                 err = -EINVAL;
76         kfree(buf);
77
78  out:
79         return err;
80 }
81
82 static int dm_read_reg(struct usbnet *dev, u8 reg, u8 *value)
83 {
84         return dm_read(dev, reg, 1, value);
85 }
86
87 static int dm_write(struct usbnet *dev, u8 reg, u16 length, void *data)
88 {
89         void *buf = NULL;
90         int err = -ENOMEM;
91
92         netdev_dbg(dev->net, "dm_write() reg=0x%02x, length=%d\n", reg, length);
93
94         if (data) {
95                 buf = kmalloc(length, GFP_KERNEL);
96                 if (!buf)
97                         goto out;
98                 memcpy(buf, data, length);
99         }
100
101         err = usb_control_msg(dev->udev,
102                               usb_sndctrlpipe(dev->udev, 0),
103                               DM_WRITE_REGS,
104                               USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
105                               0, reg, buf, length, USB_CTRL_SET_TIMEOUT);
106         kfree(buf);
107         if (err >= 0 && err < length)
108                 err = -EINVAL;
109  out:
110         return err;
111 }
112
113 static int dm_write_reg(struct usbnet *dev, u8 reg, u8 value)
114 {
115         netdev_dbg(dev->net, "dm_write_reg() reg=0x%02x, value=0x%02x\n",
116                    reg, value);
117         return usb_control_msg(dev->udev,
118                                usb_sndctrlpipe(dev->udev, 0),
119                                DM_WRITE_REG,
120                                USB_DIR_OUT | USB_TYPE_VENDOR |USB_RECIP_DEVICE,
121                                value, reg, NULL, 0, USB_CTRL_SET_TIMEOUT);
122 }
123
124 static void dm_write_async_callback(struct urb *urb)
125 {
126         struct usb_ctrlrequest *req = (struct usb_ctrlrequest *)urb->context;
127         int status = urb->status;
128
129         if (status < 0)
130                 printk(KERN_DEBUG "dm_write_async_callback() failed with %d\n",
131                        status);
132
133         kfree(req);
134         usb_free_urb(urb);
135 }
136
137 static void dm_write_async_helper(struct usbnet *dev, u8 reg, u8 value,
138                                   u16 length, void *data)
139 {
140         struct usb_ctrlrequest *req;
141         struct urb *urb;
142         int status;
143
144         urb = usb_alloc_urb(0, GFP_ATOMIC);
145         if (!urb) {
146                 netdev_err(dev->net, "Error allocating URB in dm_write_async_helper!\n");
147                 return;
148         }
149
150         req = kmalloc(sizeof(struct usb_ctrlrequest), GFP_ATOMIC);
151         if (!req) {
152                 netdev_err(dev->net, "Failed to allocate memory for control request\n");
153                 usb_free_urb(urb);
154                 return;
155         }
156
157         req->bRequestType = USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE;
158         req->bRequest = length ? DM_WRITE_REGS : DM_WRITE_REG;
159         req->wValue = cpu_to_le16(value);
160         req->wIndex = cpu_to_le16(reg);
161         req->wLength = cpu_to_le16(length);
162
163         usb_fill_control_urb(urb, dev->udev,
164                              usb_sndctrlpipe(dev->udev, 0),
165                              (void *)req, data, length,
166                              dm_write_async_callback, req);
167
168         status = usb_submit_urb(urb, GFP_ATOMIC);
169         if (status < 0) {
170                 netdev_err(dev->net, "Error submitting the control message: status=%d\n",
171                            status);
172                 kfree(req);
173                 usb_free_urb(urb);
174         }
175 }
176
177 static void dm_write_async(struct usbnet *dev, u8 reg, u16 length, void *data)
178 {
179         netdev_dbg(dev->net, "dm_write_async() reg=0x%02x length=%d\n", reg, length);
180
181         dm_write_async_helper(dev, reg, 0, length, data);
182 }
183
184 static void dm_write_reg_async(struct usbnet *dev, u8 reg, u8 value)
185 {
186         netdev_dbg(dev->net, "dm_write_reg_async() reg=0x%02x value=0x%02x\n",
187                    reg, value);
188
189         dm_write_async_helper(dev, reg, value, 0, NULL);
190 }
191
192 static int dm_read_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 *value)
193 {
194         int ret, i;
195
196         mutex_lock(&dev->phy_mutex);
197
198         dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
199         dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0xc : 0x4);
200
201         for (i = 0; i < DM_TIMEOUT; i++) {
202                 u8 tmp;
203
204                 udelay(1);
205                 ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
206                 if (ret < 0)
207                         goto out;
208
209                 /* ready */
210                 if ((tmp & 1) == 0)
211                         break;
212         }
213
214         if (i == DM_TIMEOUT) {
215                 netdev_err(dev->net, "%s read timed out!\n", phy ? "phy" : "eeprom");
216                 ret = -EIO;
217                 goto out;
218         }
219
220         dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
221         ret = dm_read(dev, DM_SHARED_DATA, 2, value);
222
223         netdev_dbg(dev->net, "read shared %d 0x%02x returned 0x%04x, %d\n",
224                    phy, reg, *value, ret);
225
226  out:
227         mutex_unlock(&dev->phy_mutex);
228         return ret;
229 }
230
231 static int dm_write_shared_word(struct usbnet *dev, int phy, u8 reg, __le16 value)
232 {
233         int ret, i;
234
235         mutex_lock(&dev->phy_mutex);
236
237         ret = dm_write(dev, DM_SHARED_DATA, 2, &value);
238         if (ret < 0)
239                 goto out;
240
241         dm_write_reg(dev, DM_SHARED_ADDR, phy ? (reg | 0x40) : reg);
242         dm_write_reg(dev, DM_SHARED_CTRL, phy ? 0x1c : 0x14);
243
244         for (i = 0; i < DM_TIMEOUT; i++) {
245                 u8 tmp;
246
247                 udelay(1);
248                 ret = dm_read_reg(dev, DM_SHARED_CTRL, &tmp);
249                 if (ret < 0)
250                         goto out;
251
252                 /* ready */
253                 if ((tmp & 1) == 0)
254                         break;
255         }
256
257         if (i == DM_TIMEOUT) {
258                 netdev_err(dev->net, "%s write timed out!\n", phy ? "phy" : "eeprom");
259                 ret = -EIO;
260                 goto out;
261         }
262
263         dm_write_reg(dev, DM_SHARED_CTRL, 0x0);
264
265 out:
266         mutex_unlock(&dev->phy_mutex);
267         return ret;
268 }
269
270 static int dm_read_eeprom_word(struct usbnet *dev, u8 offset, void *value)
271 {
272         return dm_read_shared_word(dev, 0, offset, value);
273 }
274
275
276
277 static int dm9601_get_eeprom_len(struct net_device *dev)
278 {
279         return DM_EEPROM_LEN;
280 }
281
282 static int dm9601_get_eeprom(struct net_device *net,
283                              struct ethtool_eeprom *eeprom, u8 * data)
284 {
285         struct usbnet *dev = netdev_priv(net);
286         __le16 *ebuf = (__le16 *) data;
287         int i;
288
289         /* access is 16bit */
290         if ((eeprom->offset % 2) || (eeprom->len % 2))
291                 return -EINVAL;
292
293         for (i = 0; i < eeprom->len / 2; i++) {
294                 if (dm_read_eeprom_word(dev, eeprom->offset / 2 + i,
295                                         &ebuf[i]) < 0)
296                         return -EINVAL;
297         }
298         return 0;
299 }
300
301 static int dm9601_mdio_read(struct net_device *netdev, int phy_id, int loc)
302 {
303         struct usbnet *dev = netdev_priv(netdev);
304
305         __le16 res;
306
307         if (phy_id) {
308                 netdev_dbg(dev->net, "Only internal phy supported\n");
309                 return 0;
310         }
311
312         dm_read_shared_word(dev, 1, loc, &res);
313
314         netdev_dbg(dev->net,
315                    "dm9601_mdio_read() phy_id=0x%02x, loc=0x%02x, returns=0x%04x\n",
316                    phy_id, loc, le16_to_cpu(res));
317
318         return le16_to_cpu(res);
319 }
320
321 static void dm9601_mdio_write(struct net_device *netdev, int phy_id, int loc,
322                               int val)
323 {
324         struct usbnet *dev = netdev_priv(netdev);
325         __le16 res = cpu_to_le16(val);
326
327         if (phy_id) {
328                 netdev_dbg(dev->net, "Only internal phy supported\n");
329                 return;
330         }
331
332         netdev_dbg(dev->net, "dm9601_mdio_write() phy_id=0x%02x, loc=0x%02x, val=0x%04x\n",
333                    phy_id, loc, val);
334
335         dm_write_shared_word(dev, 1, loc, res);
336 }
337
338 static void dm9601_get_drvinfo(struct net_device *net,
339                                struct ethtool_drvinfo *info)
340 {
341         /* Inherit standard device info */
342         usbnet_get_drvinfo(net, info);
343         info->eedump_len = DM_EEPROM_LEN;
344 }
345
346 static u32 dm9601_get_link(struct net_device *net)
347 {
348         struct usbnet *dev = netdev_priv(net);
349
350         return mii_link_ok(&dev->mii);
351 }
352
353 static int dm9601_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
354 {
355         struct usbnet *dev = netdev_priv(net);
356
357         return generic_mii_ioctl(&dev->mii, if_mii(rq), cmd, NULL);
358 }
359
360 static const struct ethtool_ops dm9601_ethtool_ops = {
361         .get_drvinfo    = dm9601_get_drvinfo,
362         .get_link       = dm9601_get_link,
363         .get_msglevel   = usbnet_get_msglevel,
364         .set_msglevel   = usbnet_set_msglevel,
365         .get_eeprom_len = dm9601_get_eeprom_len,
366         .get_eeprom     = dm9601_get_eeprom,
367         .get_settings   = usbnet_get_settings,
368         .set_settings   = usbnet_set_settings,
369         .nway_reset     = usbnet_nway_reset,
370 };
371
372 static void dm9601_set_multicast(struct net_device *net)
373 {
374         struct usbnet *dev = netdev_priv(net);
375         /* We use the 20 byte dev->data for our 8 byte filter buffer
376          * to avoid allocating memory that is tricky to free later */
377         u8 *hashes = (u8 *) & dev->data;
378         u8 rx_ctl = 0x31;
379
380         memset(hashes, 0x00, DM_MCAST_SIZE);
381         hashes[DM_MCAST_SIZE - 1] |= 0x80;      /* broadcast address */
382
383         if (net->flags & IFF_PROMISC) {
384                 rx_ctl |= 0x02;
385         } else if (net->flags & IFF_ALLMULTI ||
386                    netdev_mc_count(net) > DM_MAX_MCAST) {
387                 rx_ctl |= 0x04;
388         } else if (!netdev_mc_empty(net)) {
389                 struct netdev_hw_addr *ha;
390
391                 netdev_for_each_mc_addr(ha, net) {
392                         u32 crc = ether_crc(ETH_ALEN, ha->addr) >> 26;
393                         hashes[crc >> 3] |= 1 << (crc & 0x7);
394                 }
395         }
396
397         dm_write_async(dev, DM_MCAST_ADDR, DM_MCAST_SIZE, hashes);
398         dm_write_reg_async(dev, DM_RX_CTRL, rx_ctl);
399 }
400
401 static void __dm9601_set_mac_address(struct usbnet *dev)
402 {
403         dm_write_async(dev, DM_PHY_ADDR, ETH_ALEN, dev->net->dev_addr);
404 }
405
406 static int dm9601_set_mac_address(struct net_device *net, void *p)
407 {
408         struct sockaddr *addr = p;
409         struct usbnet *dev = netdev_priv(net);
410
411         if (!is_valid_ether_addr(addr->sa_data)) {
412                 dev_err(&net->dev, "not setting invalid mac address %pM\n",
413                                                                 addr->sa_data);
414                 return -EINVAL;
415         }
416
417         memcpy(net->dev_addr, addr->sa_data, net->addr_len);
418         __dm9601_set_mac_address(dev);
419
420         return 0;
421 }
422
423 static const struct net_device_ops dm9601_netdev_ops = {
424         .ndo_open               = usbnet_open,
425         .ndo_stop               = usbnet_stop,
426         .ndo_start_xmit         = usbnet_start_xmit,
427         .ndo_tx_timeout         = usbnet_tx_timeout,
428         .ndo_change_mtu         = usbnet_change_mtu,
429         .ndo_validate_addr      = eth_validate_addr,
430         .ndo_do_ioctl           = dm9601_ioctl,
431         .ndo_set_multicast_list = dm9601_set_multicast,
432         .ndo_set_mac_address    = dm9601_set_mac_address,
433 };
434
435 static int dm9601_bind(struct usbnet *dev, struct usb_interface *intf)
436 {
437         int ret;
438         u8 mac[ETH_ALEN];
439
440         ret = usbnet_get_endpoints(dev, intf);
441         if (ret)
442                 goto out;
443
444         dev->net->netdev_ops = &dm9601_netdev_ops;
445         dev->net->ethtool_ops = &dm9601_ethtool_ops;
446         dev->net->hard_header_len += DM_TX_OVERHEAD;
447         dev->hard_mtu = dev->net->mtu + dev->net->hard_header_len;
448         dev->rx_urb_size = dev->net->mtu + ETH_HLEN + DM_RX_OVERHEAD;
449
450         dev->mii.dev = dev->net;
451         dev->mii.mdio_read = dm9601_mdio_read;
452         dev->mii.mdio_write = dm9601_mdio_write;
453         dev->mii.phy_id_mask = 0x1f;
454         dev->mii.reg_num_mask = 0x1f;
455
456         /* reset */
457         dm_write_reg(dev, DM_NET_CTRL, 1);
458         udelay(20);
459
460         /* read MAC */
461         if (dm_read(dev, DM_PHY_ADDR, ETH_ALEN, mac) < 0) {
462                 printk(KERN_ERR "Error reading MAC address\n");
463                 ret = -ENODEV;
464                 goto out;
465         }
466
467         /*
468          * Overwrite the auto-generated address only with good ones.
469          */
470         if (is_valid_ether_addr(mac))
471                 memcpy(dev->net->dev_addr, mac, ETH_ALEN);
472         else {
473                 printk(KERN_WARNING
474                         "dm9601: No valid MAC address in EEPROM, using %pM\n",
475                         dev->net->dev_addr);
476                 __dm9601_set_mac_address(dev);
477         }
478
479         /* power up phy */
480         dm_write_reg(dev, DM_GPR_CTRL, 1);
481         dm_write_reg(dev, DM_GPR_DATA, 0);
482
483         /* receive broadcast packets */
484         dm9601_set_multicast(dev->net);
485
486         dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_BMCR, BMCR_RESET);
487         dm9601_mdio_write(dev->net, dev->mii.phy_id, MII_ADVERTISE,
488                           ADVERTISE_ALL | ADVERTISE_CSMA | ADVERTISE_PAUSE_CAP);
489         mii_nway_restart(&dev->mii);
490
491 out:
492         return ret;
493 }
494
495 static int dm9601_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
496 {
497         u8 status;
498         int len;
499
500         /* format:
501            b1: rx status
502            b2: packet length (incl crc) low
503            b3: packet length (incl crc) high
504            b4..n-4: packet data
505            bn-3..bn: ethernet crc
506          */
507
508         if (unlikely(skb->len < DM_RX_OVERHEAD)) {
509                 dev_err(&dev->udev->dev, "unexpected tiny rx frame\n");
510                 return 0;
511         }
512
513         status = skb->data[0];
514         len = (skb->data[1] | (skb->data[2] << 8)) - 4;
515
516         if (unlikely(status & 0xbf)) {
517                 if (status & 0x01) dev->net->stats.rx_fifo_errors++;
518                 if (status & 0x02) dev->net->stats.rx_crc_errors++;
519                 if (status & 0x04) dev->net->stats.rx_frame_errors++;
520                 if (status & 0x20) dev->net->stats.rx_missed_errors++;
521                 if (status & 0x90) dev->net->stats.rx_length_errors++;
522                 return 0;
523         }
524
525         skb_pull(skb, 3);
526         skb_trim(skb, len);
527
528         return 1;
529 }
530
531 static struct sk_buff *dm9601_tx_fixup(struct usbnet *dev, struct sk_buff *skb,
532                                        gfp_t flags)
533 {
534         int len;
535
536         /* format:
537            b1: packet length low
538            b2: packet length high
539            b3..n: packet data
540         */
541
542         len = skb->len;
543
544         if (skb_headroom(skb) < DM_TX_OVERHEAD) {
545                 struct sk_buff *skb2;
546
547                 skb2 = skb_copy_expand(skb, DM_TX_OVERHEAD, 0, flags);
548                 dev_kfree_skb_any(skb);
549                 skb = skb2;
550                 if (!skb)
551                         return NULL;
552         }
553
554         __skb_push(skb, DM_TX_OVERHEAD);
555
556         /* usbnet adds padding if length is a multiple of packet size
557            if so, adjust length value in header */
558         if ((skb->len % dev->maxpacket) == 0)
559                 len++;
560
561         skb->data[0] = len;
562         skb->data[1] = len >> 8;
563
564         return skb;
565 }
566
567 static void dm9601_status(struct usbnet *dev, struct urb *urb)
568 {
569         int link;
570         u8 *buf;
571
572         /* format:
573            b0: net status
574            b1: tx status 1
575            b2: tx status 2
576            b3: rx status
577            b4: rx overflow
578            b5: rx count
579            b6: tx count
580            b7: gpr
581         */
582
583         if (urb->actual_length < 8)
584                 return;
585
586         buf = urb->transfer_buffer;
587
588         link = !!(buf[0] & 0x40);
589         if (netif_carrier_ok(dev->net) != link) {
590                 if (link) {
591                         netif_carrier_on(dev->net);
592                         usbnet_defer_kevent (dev, EVENT_LINK_RESET);
593                 }
594                 else
595                         netif_carrier_off(dev->net);
596                 netdev_dbg(dev->net, "Link Status is: %d\n", link);
597         }
598 }
599
600 static int dm9601_link_reset(struct usbnet *dev)
601 {
602         struct ethtool_cmd ecmd;
603
604         mii_check_media(&dev->mii, 1, 1);
605         mii_ethtool_gset(&dev->mii, &ecmd);
606
607         netdev_dbg(dev->net, "link_reset() speed: %d duplex: %d\n",
608                    ecmd.speed, ecmd.duplex);
609
610         return 0;
611 }
612
613 static const struct driver_info dm9601_info = {
614         .description    = "Davicom DM9601 USB Ethernet",
615         .flags          = FLAG_ETHER | FLAG_LINK_INTR,
616         .bind           = dm9601_bind,
617         .rx_fixup       = dm9601_rx_fixup,
618         .tx_fixup       = dm9601_tx_fixup,
619         .status         = dm9601_status,
620         .link_reset     = dm9601_link_reset,
621         .reset          = dm9601_link_reset,
622 };
623
624 static const struct usb_device_id products[] = {
625         {
626          USB_DEVICE(0x07aa, 0x9601),    /* Corega FEther USB-TXC */
627          .driver_info = (unsigned long)&dm9601_info,
628          },
629         {
630          USB_DEVICE(0x0a46, 0x9601),    /* Davicom USB-100 */
631          .driver_info = (unsigned long)&dm9601_info,
632          },
633         {
634          USB_DEVICE(0x0a46, 0x6688),    /* ZT6688 USB NIC */
635          .driver_info = (unsigned long)&dm9601_info,
636          },
637         {
638          USB_DEVICE(0x0a46, 0x0268),    /* ShanTou ST268 USB NIC */
639          .driver_info = (unsigned long)&dm9601_info,
640          },
641         {
642          USB_DEVICE(0x0a46, 0x8515),    /* ADMtek ADM8515 USB NIC */
643          .driver_info = (unsigned long)&dm9601_info,
644          },
645         {
646         USB_DEVICE(0x0a47, 0x9601),     /* Hirose USB-100 */
647         .driver_info = (unsigned long)&dm9601_info,
648          },
649         {
650         USB_DEVICE(0x0fe6, 0x8101),     /* DM9601 USB to Fast Ethernet Adapter */
651         .driver_info = (unsigned long)&dm9601_info,
652          },
653         {
654          USB_DEVICE(0x0a46, 0x9000),    /* DM9000E */
655          .driver_info = (unsigned long)&dm9601_info,
656          },
657         {},                     // END
658 };
659
660 MODULE_DEVICE_TABLE(usb, products);
661
662 static struct usb_driver dm9601_driver = {
663         .name = "dm9601",
664         .id_table = products,
665         .probe = usbnet_probe,
666         .disconnect = usbnet_disconnect,
667         .suspend = usbnet_suspend,
668         .resume = usbnet_resume,
669 };
670
671 static int __init dm9601_init(void)
672 {
673         return usb_register(&dm9601_driver);
674 }
675
676 static void __exit dm9601_exit(void)
677 {
678         usb_deregister(&dm9601_driver);
679 }
680
681 module_init(dm9601_init);
682 module_exit(dm9601_exit);
683
684 MODULE_AUTHOR("Peter Korsgaard <jacmet@sunsite.dk>");
685 MODULE_DESCRIPTION("Davicom DM9601 USB 1.1 ethernet devices");
686 MODULE_LICENSE("GPL");