kernel/drivers/net/irda/kingsun-sir.c

   1 /*****************************************************************************
   2 *
   3 * Filename:      kingsun-sir.c
   4 * Version:       0.1.1
   5 * Description:   Irda KingSun/DonShine USB Dongle
   6 * Status:        Experimental
   7 * Author:        Alex Villacís Lasso <a_villacis@palosanto.com>
   8 *
   9 *       Based on stir4200 and mcs7780 drivers, with (strange?) differences
  10 *
  11 *       This program is free software; you can redistribute it and/or modify
  12 *       it under the terms of the GNU General Public License as published by
  13 *       the Free Software Foundation; either version 2 of the License.
  14 *
  15 *       This program is distributed in the hope that it will be useful,
  16 *       but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 *       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 *       GNU General Public License for more details.
  19 *
  20 *       You should have received a copy of the GNU General Public License
  21 *       along with this program; if not, write to the Free Software
  22 *       Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  23 *
  24 *****************************************************************************/
  25
  26 /*
  27  * This is my current (2007-04-25) understanding of how this dongle is supposed
  28  * to work. This is based on reverse-engineering and examination of the packet
  29  * data sent and received by the WinXP driver using USBSnoopy. Feel free to
  30  * update here as more of this dongle is known:
  31  *
  32  * General: Unlike the other USB IrDA dongles, this particular dongle exposes,
  33  * not two bulk (in and out) endpoints, but two *interrupt* ones. This dongle,
  34  * like the bulk based ones (stir4200.c and mcs7780.c), requires polling in
  35  * order to receive data.
  36  * Transmission: Just like stir4200, this dongle uses a raw stream of data,
  37  * which needs to be wrapped and escaped in a similar way as in stir4200.c.
  38  * Reception: Poll-based, as in stir4200. Each read returns the contents of a
  39  * 8-byte buffer, of which the first byte (LSB) indicates the number of bytes
  40  * (1-7) of valid data contained within the remaining 7 bytes. For example, if
  41  * the buffer had the following contents:
  42  *  06 ff ff ff c0 01 04 aa
  43  * This means that (06) there are 6 bytes of valid data. The byte 0xaa at the
  44  * end is garbage (left over from a previous reception) and is discarded.
  45  * If a read returns an "impossible" value as the length of valid data (such as
  46  * 0x36) in the first byte, then the buffer is uninitialized (as is the case of
  47  * first plug-in) and its contents should be discarded. There is currently no
  48  * evidence that the top 5 bits of the 1st byte of the buffer can have values
  49  * other than 0 once reception begins.
  50  * Once valid bytes are collected, the assembled stream is a sequence of
  51  * wrapped IrDA frames that is unwrapped and unescaped as in stir4200.c.
  52  * BIG FAT WARNING: the dongle does *not* reset the RX buffer in any way after
  53  * a successful read from the host, which means that in absence of further
  54  * reception, repeated reads from the dongle will return the exact same
  55  * contents repeatedly. Attempts to be smart and cache a previous read seem
  56  * to result in corrupted packets, so this driver depends on the unwrap logic
  57  * to sort out any repeated reads.
  58  * Speed change: no commands observed so far to change speed, assumed fixed
  59  * 9600bps (SIR).
  60  */
  61
  62 #include <linux/module.h>
  63 #include <linux/moduleparam.h>
  64 #include <linux/kernel.h>
  65 #include <linux/types.h>
  66 #include <linux/errno.h>
  67 #include <linux/slab.h>
  68 #include <linux/usb.h>
  69 #include <linux/device.h>
  70 #include <linux/crc32.h>
  71
  72 #include <asm/unaligned.h>
  73 #include <asm/byteorder.h>
  74 #include <asm/uaccess.h>
  75
  76 #include <net/irda/irda.h>
  77 #include <net/irda/wrapper.h>
  78 #include <net/irda/crc.h>
  79
  80 /*
  81  * According to lsusb, 0x07c0 is assigned to
  82  * "Code Mercenaries Hard- und Software GmbH"
  83  */
  84 #define KING_VENDOR_ID 0x07c0
  85 #define KING_PRODUCT_ID 0x4200
  86
  87 /* These are the currently known USB ids */
  88 static struct usb_device_id dongles[] = {
  89     /* KingSun Co,Ltd  IrDA/USB Bridge */
  90     { USB_DEVICE(KING_VENDOR_ID, KING_PRODUCT_ID) },
  91     { }
  92 };
  93
  94 MODULE_DEVICE_TABLE(usb, dongles);
  95
  96 #define KINGSUN_MTT 0x07
  97
  98 #define KINGSUN_FIFO_SIZE               4096
  99 #define KINGSUN_EP_IN                   0
 100 #define KINGSUN_EP_OUT                  1
 101
 102 struct kingsun_cb {
 103         struct usb_device *usbdev;      /* init: probe_irda */
 104         struct net_device *netdev;      /* network layer */
 105         struct irlap_cb   *irlap;       /* The link layer we are binded to */
 106
 107         struct qos_info   qos;
 108
 109         __u8              *in_buf;      /* receive buffer */
 110         __u8              *out_buf;     /* transmit buffer */
 111         __u8              max_rx;       /* max. atomic read from dongle
 112                                            (usually 8), also size of in_buf */
 113         __u8              max_tx;       /* max. atomic write to dongle
 114                                            (usually 8) */
 115
 116         iobuff_t          rx_buff;      /* receive unwrap state machine */
 117         spinlock_t lock;
 118         int receiving;
 119
 120         __u8 ep_in;
 121         __u8 ep_out;
 122
 123         struct urb       *tx_urb;
 124         struct urb       *rx_urb;
 125 };
 126
 127 /* Callback transmission routine */
 128 static void kingsun_send_irq(struct urb *urb)
 129 {
 130         struct kingsun_cb *kingsun = urb->context;
 131         struct net_device *netdev = kingsun->netdev;
 132
 133         /* in process of stopping, just drop data */
 134         if (!netif_running(kingsun->netdev)) {
 135                 dev_err(&kingsun->usbdev->dev,
 136                         "kingsun_send_irq: Network not running!\n");
 137                 return;
 138         }
 139
 140         /* unlink, shutdown, unplug, other nasties */
 141         if (urb->status != 0) {
 142                 dev_err(&kingsun->usbdev->dev,
 143                         "kingsun_send_irq: urb asynchronously failed - %d\n",
 144                         urb->status);
 145         }
 146         netif_wake_queue(netdev);
 147 }
 148
 149 /*
 150  * Called from net/core when new frame is available.
 151  */
 152 static netdev_tx_t kingsun_hard_xmit(struct sk_buff *skb,
 153                                            struct net_device *netdev)
 154 {
 155         struct kingsun_cb *kingsun;
 156         int wraplen;
 157         int ret = 0;
 158
 159         netif_stop_queue(netdev);
 160
 161         /* the IRDA wrapping routines don't deal with non linear skb */
 162         SKB_LINEAR_ASSERT(skb);
 163
 164         kingsun = netdev_priv(netdev);
 165
 166         spin_lock(&kingsun->lock);
 167
 168         /* Append data to the end of whatever data remains to be transmitted */
 169         wraplen = async_wrap_skb(skb,
 170                 kingsun->out_buf,
 171                 KINGSUN_FIFO_SIZE);
 172
 173         /* Calculate how much data can be transmitted in this urb */
 174         usb_fill_int_urb(kingsun->tx_urb, kingsun->usbdev,
 175                 usb_sndintpipe(kingsun->usbdev, kingsun->ep_out),
 176                 kingsun->out_buf, wraplen, kingsun_send_irq,
 177                 kingsun, 1);
 178
 179         if ((ret = usb_submit_urb(kingsun->tx_urb, GFP_ATOMIC))) {
 180                 dev_err(&kingsun->usbdev->dev,
 181                         "kingsun_hard_xmit: failed tx_urb submit: %d\n", ret);
 182                 switch (ret) {
 183                 case -ENODEV:
 184                 case -EPIPE:
 185                         break;
 186                 default:
 187                         netdev->stats.tx_errors++;
 188                         netif_start_queue(netdev);
 189                 }
 190         } else {
 191                 netdev->stats.tx_packets++;
 192                 netdev->stats.tx_bytes += skb->len;
 193         }
 194
 195         dev_kfree_skb(skb);
 196         spin_unlock(&kingsun->lock);
 197
 198         return NETDEV_TX_OK;
 199 }
 200
 201 /* Receive callback function */
 202 static void kingsun_rcv_irq(struct urb *urb)
 203 {
 204         struct kingsun_cb *kingsun = urb->context;
 205         int ret;
 206
 207         /* in process of stopping, just drop data */
 208         if (!netif_running(kingsun->netdev)) {
 209                 kingsun->receiving = 0;
 210                 return;
 211         }
 212
 213         /* unlink, shutdown, unplug, other nasties */
 214         if (urb->status != 0) {
 215                 dev_err(&kingsun->usbdev->dev,
 216                         "kingsun_rcv_irq: urb asynchronously failed - %d\n",
 217                         urb->status);
 218                 kingsun->receiving = 0;
 219                 return;
 220         }
 221
 222         if (urb->actual_length == kingsun->max_rx) {
 223                 __u8 *bytes = urb->transfer_buffer;
 224                 int i;
 225
 226                 /* The very first byte in the buffer indicates the length of
 227                    valid data in the read. This byte must be in the range
 228                    1..kingsun->max_rx -1 . Values outside this range indicate
 229                    an uninitialized Rx buffer when the dongle has just been
 230                    plugged in. */
 231                 if (bytes[0] >= 1 && bytes[0] < kingsun->max_rx) {
 232                         for (i = 1; i <= bytes[0]; i++) {
 233                                 async_unwrap_char(kingsun->netdev,
 234                                                   &kingsun->netdev->stats,
 235                                                   &kingsun->rx_buff, bytes[i]);
 236                         }
 237                         kingsun->receiving =
 238                                 (kingsun->rx_buff.state != OUTSIDE_FRAME)
 239                                 ? 1 : 0;
 240                 }
 241         } else if (urb->actual_length > 0) {
 242                 dev_err(&kingsun->usbdev->dev,
 243                         "%s(): Unexpected response length, expected %d got %d\n",
 244                         __func__, kingsun->max_rx, urb->actual_length);
 245         }
 246         /* This urb has already been filled in kingsun_net_open */
 247         ret = usb_submit_urb(urb, GFP_ATOMIC);
 248 }
 249
 250 /*
 251  * Function kingsun_net_open (dev)
 252  *
 253  *    Network device is taken up. Usually this is done by "ifconfig irda0 up"
 254  */
 255 static int kingsun_net_open(struct net_device *netdev)
 256 {
 257         struct kingsun_cb *kingsun = netdev_priv(netdev);
 258         int err = -ENOMEM;
 259         char hwname[16];
 260
 261         /* At this point, urbs are NULL, and skb is NULL (see kingsun_probe) */
 262         kingsun->receiving = 0;
 263
 264         /* Initialize for SIR to copy data directly into skb.  */
 265         kingsun->rx_buff.in_frame = FALSE;
 266         kingsun->rx_buff.state = OUTSIDE_FRAME;
 267         kingsun->rx_buff.truesize = IRDA_SKB_MAX_MTU;
 268         kingsun->rx_buff.skb = dev_alloc_skb(IRDA_SKB_MAX_MTU);
 269         if (!kingsun->rx_buff.skb)
 270                 goto free_mem;
 271
 272         skb_reserve(kingsun->rx_buff.skb, 1);
 273         kingsun->rx_buff.head = kingsun->rx_buff.skb->data;
 274
 275         kingsun->rx_urb = usb_alloc_urb(0, GFP_KERNEL);
 276         if (!kingsun->rx_urb)
 277                 goto free_mem;
 278
 279         kingsun->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
 280         if (!kingsun->tx_urb)
 281                 goto free_mem;
 282
 283         /*
 284          * Now that everything should be initialized properly,
 285          * Open new IrLAP layer instance to take care of us...
 286          */
 287         sprintf(hwname, "usb#%d", kingsun->usbdev->devnum);
 288         kingsun->irlap = irlap_open(netdev, &kingsun->qos, hwname);
 289         if (!kingsun->irlap) {
 290                 dev_err(&kingsun->usbdev->dev, "irlap_open failed\n");
 291                 goto free_mem;
 292         }
 293
 294         /* Start first reception */
 295         usb_fill_int_urb(kingsun->rx_urb, kingsun->usbdev,
 296                           usb_rcvintpipe(kingsun->usbdev, kingsun->ep_in),
 297                           kingsun->in_buf, kingsun->max_rx,
 298                           kingsun_rcv_irq, kingsun, 1);
 299         kingsun->rx_urb->status = 0;
 300         err = usb_submit_urb(kingsun->rx_urb, GFP_KERNEL);
 301         if (err) {
 302                 dev_err(&kingsun->usbdev->dev,
 303                         "first urb-submit failed: %d\n", err);
 304                 goto close_irlap;
 305         }
 306
 307         netif_start_queue(netdev);
 308
 309         /* Situation at this point:
 310            - all work buffers allocated
 311            - urbs allocated and ready to fill
 312            - max rx packet known (in max_rx)
 313            - unwrap state machine initialized, in state outside of any frame
 314            - receive request in progress
 315            - IrLAP layer started, about to hand over packets to send
 316          */
 317
 318         return 0;
 319
 320  close_irlap:
 321         irlap_close(kingsun->irlap);
 322  free_mem:
 323         if (kingsun->tx_urb) {
 324                 usb_free_urb(kingsun->tx_urb);
 325                 kingsun->tx_urb = NULL;
 326         }
 327         if (kingsun->rx_urb) {
 328                 usb_free_urb(kingsun->rx_urb);
 329                 kingsun->rx_urb = NULL;
 330         }
 331         if (kingsun->rx_buff.skb) {
 332                 kfree_skb(kingsun->rx_buff.skb);
 333                 kingsun->rx_buff.skb = NULL;
 334                 kingsun->rx_buff.head = NULL;
 335         }
 336         return err;
 337 }
 338
 339 /*
 340  * Function kingsun_net_close (kingsun)
 341  *
 342  *    Network device is taken down. Usually this is done by
 343  *    "ifconfig irda0 down"
 344  */
 345 static int kingsun_net_close(struct net_device *netdev)
 346 {
 347         struct kingsun_cb *kingsun = netdev_priv(netdev);
 348
 349         /* Stop transmit processing */
 350         netif_stop_queue(netdev);
 351
 352         /* Mop up receive && transmit urb's */
 353         usb_kill_urb(kingsun->tx_urb);
 354         usb_kill_urb(kingsun->rx_urb);
 355
 356         usb_free_urb(kingsun->tx_urb);
 357         usb_free_urb(kingsun->rx_urb);
 358
 359         kingsun->tx_urb = NULL;
 360         kingsun->rx_urb = NULL;
 361
 362         kfree_skb(kingsun->rx_buff.skb);
 363         kingsun->rx_buff.skb = NULL;
 364         kingsun->rx_buff.head = NULL;
 365         kingsun->rx_buff.in_frame = FALSE;
 366         kingsun->rx_buff.state = OUTSIDE_FRAME;
 367         kingsun->receiving = 0;
 368
 369         /* Stop and remove instance of IrLAP */
 370         if (kingsun->irlap)
 371                 irlap_close(kingsun->irlap);
 372
 373         kingsun->irlap = NULL;
 374
 375         return 0;
 376 }
 377
 378 /*
 379  * IOCTLs : Extra out-of-band network commands...
 380  */
 381 static int kingsun_net_ioctl(struct net_device *netdev, struct ifreq *rq,
 382                              int cmd)
 383 {
 384         struct if_irda_req *irq = (struct if_irda_req *) rq;
 385         struct kingsun_cb *kingsun = netdev_priv(netdev);
 386         int ret = 0;
 387
 388         switch (cmd) {
 389         case SIOCSBANDWIDTH: /* Set bandwidth */
 390                 if (!capable(CAP_NET_ADMIN))
 391                         return -EPERM;
 392
 393                 /* Check if the device is still there */
 394                 if (netif_device_present(kingsun->netdev))
 395                         /* No observed commands for speed change */
 396                         ret = -EOPNOTSUPP;
 397                 break;
 398
 399         case SIOCSMEDIABUSY: /* Set media busy */
 400                 if (!capable(CAP_NET_ADMIN))
 401                         return -EPERM;
 402
 403                 /* Check if the IrDA stack is still there */
 404                 if (netif_running(kingsun->netdev))
 405                         irda_device_set_media_busy(kingsun->netdev, TRUE);
 406                 break;
 407
 408         case SIOCGRECEIVING:
 409                 /* Only approximately true */
 410                 irq->ifr_receiving = kingsun->receiving;
 411                 break;
 412
 413         default:
 414                 ret = -EOPNOTSUPP;
 415         }
 416
 417         return ret;
 418 }
 419
 420 static const struct net_device_ops kingsun_ops = {
 421         .ndo_start_xmit      = kingsun_hard_xmit,
 422         .ndo_open            = kingsun_net_open,
 423         .ndo_stop            = kingsun_net_close,
 424         .ndo_do_ioctl        = kingsun_net_ioctl,
 425 };
 426
 427 /*
 428  * This routine is called by the USB subsystem for each new device
 429  * in the system. We need to check if the device is ours, and in
 430  * this case start handling it.
 431  */
 432 static int kingsun_probe(struct usb_interface *intf,
 433                       const struct usb_device_id *id)
 434 {
 435         struct usb_host_interface *interface;
 436         struct usb_endpoint_descriptor *endpoint;
 437
 438         struct usb_device *dev = interface_to_usbdev(intf);
 439         struct kingsun_cb *kingsun = NULL;
 440         struct net_device *net = NULL;
 441         int ret = -ENOMEM;
 442         int pipe, maxp_in, maxp_out;
 443         __u8 ep_in;
 444         __u8 ep_out;
 445
 446         /* Check that there really are two interrupt endpoints.
 447            Check based on the one in drivers/usb/input/usbmouse.c
 448          */
 449         interface = intf->cur_altsetting;
 450         if (interface->desc.bNumEndpoints != 2) {
 451                 dev_err(&intf->dev,
 452                         "kingsun-sir: expected 2 endpoints, found %d\n",
 453                         interface->desc.bNumEndpoints);
 454                 return -ENODEV;
 455         }
 456         endpoint = &interface->endpoint[KINGSUN_EP_IN].desc;
 457         if (!usb_endpoint_is_int_in(endpoint)) {
 458                 dev_err(&intf->dev,
 459                         "kingsun-sir: endpoint 0 is not interrupt IN\n");
 460                 return -ENODEV;
 461         }
 462
 463         ep_in = endpoint->bEndpointAddress;
 464         pipe = usb_rcvintpipe(dev, ep_in);
 465         maxp_in = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
 466         if (maxp_in > 255 || maxp_in <= 1) {
 467                 dev_err(&intf->dev,
 468                         "endpoint 0 has max packet size %d not in range\n",
 469                         maxp_in);
 470                 return -ENODEV;
 471         }
 472
 473         endpoint = &interface->endpoint[KINGSUN_EP_OUT].desc;
 474         if (!usb_endpoint_is_int_out(endpoint)) {
 475                 dev_err(&intf->dev,
 476                         "kingsun-sir: endpoint 1 is not interrupt OUT\n");
 477                 return -ENODEV;
 478         }
 479
 480         ep_out = endpoint->bEndpointAddress;
 481         pipe = usb_sndintpipe(dev, ep_out);
 482         maxp_out = usb_maxpacket(dev, pipe, usb_pipeout(pipe));
 483
 484         /* Allocate network device container. */
 485         net = alloc_irdadev(sizeof(*kingsun));
 486         if(!net)
 487                 goto err_out1;
 488
 489         SET_NETDEV_DEV(net, &intf->dev);
 490         kingsun = netdev_priv(net);
 491         kingsun->irlap = NULL;
 492         kingsun->tx_urb = NULL;
 493         kingsun->rx_urb = NULL;
 494         kingsun->ep_in = ep_in;
 495         kingsun->ep_out = ep_out;
 496         kingsun->in_buf = NULL;
 497         kingsun->out_buf = NULL;
 498         kingsun->max_rx = (__u8)maxp_in;
 499         kingsun->max_tx = (__u8)maxp_out;
 500         kingsun->netdev = net;
 501         kingsun->usbdev = dev;
 502         kingsun->rx_buff.in_frame = FALSE;
 503         kingsun->rx_buff.state = OUTSIDE_FRAME;
 504         kingsun->rx_buff.skb = NULL;
 505         kingsun->receiving = 0;
 506         spin_lock_init(&kingsun->lock);
 507
 508         /* Allocate input buffer */
 509         kingsun->in_buf = kmalloc(kingsun->max_rx, GFP_KERNEL);
 510         if (!kingsun->in_buf)
 511                 goto free_mem;
 512
 513         /* Allocate output buffer */
 514         kingsun->out_buf = kmalloc(KINGSUN_FIFO_SIZE, GFP_KERNEL);
 515         if (!kingsun->out_buf)
 516                 goto free_mem;
 517
 518         printk(KERN_INFO "KingSun/DonShine IRDA/USB found at address %d, "
 519                 "Vendor: %x, Product: %x\n",
 520                dev->devnum, le16_to_cpu(dev->descriptor.idVendor),
 521                le16_to_cpu(dev->descriptor.idProduct));
 522
 523         /* Initialize QoS for this device */
 524         irda_init_max_qos_capabilies(&kingsun->qos);
 525
 526         /* That's the Rx capability. */
 527         kingsun->qos.baud_rate.bits       &= IR_9600;
 528         kingsun->qos.min_turn_time.bits   &= KINGSUN_MTT;
 529         irda_qos_bits_to_value(&kingsun->qos);
 530
 531         /* Override the network functions we need to use */
 532         net->netdev_ops = &kingsun_ops;
 533
 534         ret = register_netdev(net);
 535         if (ret != 0)
 536                 goto free_mem;
 537
 538         dev_info(&net->dev, "IrDA: Registered KingSun/DonShine device %s\n",
 539                  net->name);
 540
 541         usb_set_intfdata(intf, kingsun);
 542
 543         /* Situation at this point:
 544            - all work buffers allocated
 545            - urbs not allocated, set to NULL
 546            - max rx packet known (in max_rx)
 547            - unwrap state machine (partially) initialized, but skb == NULL
 548          */
 549
 550         return 0;
 551
 552 free_mem:
 553         kfree(kingsun->out_buf);
 554         kfree(kingsun->in_buf);
 555         free_netdev(net);
 556 err_out1:
 557         return ret;
 558 }
 559
 560 /*
 561  * The current device is removed, the USB layer tell us to shut it down...
 562  */
 563 static void kingsun_disconnect(struct usb_interface *intf)
 564 {
 565         struct kingsun_cb *kingsun = usb_get_intfdata(intf);
 566
 567         if (!kingsun)
 568                 return;
 569
 570         unregister_netdev(kingsun->netdev);
 571
 572         /* Mop up receive && transmit urb's */
 573         if (kingsun->tx_urb != NULL) {
 574                 usb_kill_urb(kingsun->tx_urb);
 575                 usb_free_urb(kingsun->tx_urb);
 576                 kingsun->tx_urb = NULL;
 577         }
 578         if (kingsun->rx_urb != NULL) {
 579                 usb_kill_urb(kingsun->rx_urb);
 580                 usb_free_urb(kingsun->rx_urb);
 581                 kingsun->rx_urb = NULL;
 582         }
 583
 584         kfree(kingsun->out_buf);
 585         kfree(kingsun->in_buf);
 586         free_netdev(kingsun->netdev);
 587
 588         usb_set_intfdata(intf, NULL);
 589 }
 590
 591 #ifdef CONFIG_PM
 592 /* USB suspend, so power off the transmitter/receiver */
 593 static int kingsun_suspend(struct usb_interface *intf, pm_message_t message)
 594 {
 595         struct kingsun_cb *kingsun = usb_get_intfdata(intf);
 596
 597         netif_device_detach(kingsun->netdev);
 598         if (kingsun->tx_urb != NULL) usb_kill_urb(kingsun->tx_urb);
 599         if (kingsun->rx_urb != NULL) usb_kill_urb(kingsun->rx_urb);
 600         return 0;
 601 }
 602
 603 /* Coming out of suspend, so reset hardware */
 604 static int kingsun_resume(struct usb_interface *intf)
 605 {
 606         struct kingsun_cb *kingsun = usb_get_intfdata(intf);
 607
 608         if (kingsun->rx_urb != NULL)
 609                 usb_submit_urb(kingsun->rx_urb, GFP_KERNEL);
 610         netif_device_attach(kingsun->netdev);
 611
 612         return 0;
 613 }
 614 #endif
 615
 616 /*
 617  * USB device callbacks
 618  */
 619 static struct usb_driver irda_driver = {
 620         .name           = "kingsun-sir",
 621         .probe          = kingsun_probe,
 622         .disconnect     = kingsun_disconnect,
 623         .id_table       = dongles,
 624 #ifdef CONFIG_PM
 625         .suspend        = kingsun_suspend,
 626         .resume         = kingsun_resume,
 627 #endif
 628 };
 629
 630 module_usb_driver(irda_driver);
 631
 632 MODULE_AUTHOR("Alex Villacís Lasso <a_villacis@palosanto.com>");
 633 MODULE_DESCRIPTION("IrDA-USB Dongle Driver for KingSun/DonShine");
 634 MODULE_LICENSE("GPL");