drivers/media/video/gspca/konica.c

   1 /*
   2  * Driver for USB webcams based on Konica chipset. This
   3  * chipset is used in Intel YC76 camera.
   4  *
   5  * Copyright (C) 2010 Hans de Goede <hdegoede@redhat.com>
   6  *
   7  * Based on the usbvideo v4l1 konicawc driver which is:
   8  *
   9  * Copyright (C) 2002 Simon Evans <spse@secret.org.uk>
  10  *
  11  * The code for making gspca work with a webcam with 2 isoc endpoints was
  12  * taken from the benq gspca subdriver which is:
  13  *
  14  * Copyright (C) 2009 Jean-Francois Moine (http://moinejf.free.fr)
  15  *
  16  * This program is free software; you can redistribute it and/or modify
  17  * it under the terms of the GNU General Public License as published by
  18  * the Free Software Foundation; either version 2 of the License, or
  19  * any later version.
  20  *
  21  * This program is distributed in the hope that it will be useful,
  22  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  23  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  24  * GNU General Public License for more details.
  25  *
  26  * You should have received a copy of the GNU General Public License
  27  * along with this program; if not, write to the Free Software
  28  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  29  */
  30
  31 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  32
  33 #define MODULE_NAME "konica"
  34
  35 #include <linux/input.h>
  36 #include "gspca.h"
  37
  38 MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
  39 MODULE_DESCRIPTION("Konica chipset USB Camera Driver");
  40 MODULE_LICENSE("GPL");
  41
  42 #define WHITEBAL_REG   0x01
  43 #define BRIGHTNESS_REG 0x02
  44 #define SHARPNESS_REG  0x03
  45 #define CONTRAST_REG   0x04
  46 #define SATURATION_REG 0x05
  47
  48 /* specific webcam descriptor */
  49 struct sd {
  50         struct gspca_dev gspca_dev;     /* !! must be the first item */
  51         struct urb *last_data_urb;
  52         u8 snapshot_pressed;
  53         u8 brightness;
  54         u8 contrast;
  55         u8 saturation;
  56         u8 whitebal;
  57         u8 sharpness;
  58 };
  59
  60 /* V4L2 controls supported by the driver */
  61 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val);
  62 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val);
  63 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val);
  64 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val);
  65 static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val);
  66 static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val);
  67 static int sd_setwhitebal(struct gspca_dev *gspca_dev, __s32 val);
  68 static int sd_getwhitebal(struct gspca_dev *gspca_dev, __s32 *val);
  69 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val);
  70 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val);
  71
  72 static const struct ctrl sd_ctrls[] = {
  73 #define SD_BRIGHTNESS 0
  74         {
  75             {
  76                 .id      = V4L2_CID_BRIGHTNESS,
  77                 .type    = V4L2_CTRL_TYPE_INTEGER,
  78                 .name    = "Brightness",
  79                 .minimum = 0,
  80                 .maximum = 9,
  81                 .step = 1,
  82 #define BRIGHTNESS_DEFAULT 4
  83                 .default_value = BRIGHTNESS_DEFAULT,
  84                 .flags = 0,
  85             },
  86             .set = sd_setbrightness,
  87             .get = sd_getbrightness,
  88         },
  89 #define SD_CONTRAST 1
  90         {
  91             {
  92                 .id = V4L2_CID_CONTRAST,
  93                 .type = V4L2_CTRL_TYPE_INTEGER,
  94                 .name = "Contrast",
  95                 .minimum = 0,
  96                 .maximum = 9,
  97                 .step = 4,
  98 #define CONTRAST_DEFAULT 10
  99                 .default_value = CONTRAST_DEFAULT,
 100                 .flags = 0,
 101             },
 102             .set = sd_setcontrast,
 103             .get = sd_getcontrast,
 104         },
 105 #define SD_SATURATION 2
 106         {
 107             {
 108                 .id     = V4L2_CID_SATURATION,
 109                 .type   = V4L2_CTRL_TYPE_INTEGER,
 110                 .name   = "Saturation",
 111                 .minimum = 0,
 112                 .maximum = 9,
 113                 .step   = 1,
 114 #define SATURATION_DEFAULT 4
 115                 .default_value = SATURATION_DEFAULT,
 116                 .flags = 0,
 117             },
 118             .set = sd_setsaturation,
 119             .get = sd_getsaturation,
 120         },
 121 #define SD_WHITEBAL 3
 122         {
 123             {
 124                 .id = V4L2_CID_WHITE_BALANCE_TEMPERATURE,
 125                 .type = V4L2_CTRL_TYPE_INTEGER,
 126                 .name = "White Balance",
 127                 .minimum = 0,
 128                 .maximum = 33,
 129                 .step = 1,
 130 #define WHITEBAL_DEFAULT 25
 131                 .default_value = WHITEBAL_DEFAULT,
 132                 .flags = 0,
 133             },
 134             .set = sd_setwhitebal,
 135             .get = sd_getwhitebal,
 136         },
 137 #define SD_SHARPNESS 4
 138         {
 139             {
 140                 .id = V4L2_CID_SHARPNESS,
 141                 .type = V4L2_CTRL_TYPE_INTEGER,
 142                 .name = "Sharpness",
 143                 .minimum = 0,
 144                 .maximum = 9,
 145                 .step = 1,
 146 #define SHARPNESS_DEFAULT 4
 147                 .default_value = SHARPNESS_DEFAULT,
 148                 .flags = 0,
 149             },
 150             .set = sd_setsharpness,
 151             .get = sd_getsharpness,
 152         },
 153 };
 154
 155 /* .priv is what goes to register 8 for this mode, known working values:
 156    0x00 -> 176x144, cropped
 157    0x01 -> 176x144, cropped
 158    0x02 -> 176x144, cropped
 159    0x03 -> 176x144, cropped
 160    0x04 -> 176x144, binned
 161    0x05 -> 320x240
 162    0x06 -> 320x240
 163    0x07 -> 160x120, cropped
 164    0x08 -> 160x120, cropped
 165    0x09 -> 160x120, binned (note has 136 lines)
 166    0x0a -> 160x120, binned (note has 136 lines)
 167    0x0b -> 160x120, cropped
 168 */
 169 static const struct v4l2_pix_format vga_mode[] = {
 170         {160, 120, V4L2_PIX_FMT_KONICA420, V4L2_FIELD_NONE,
 171                 .bytesperline = 160,
 172                 .sizeimage = 160 * 136 * 3 / 2 + 960,
 173                 .colorspace = V4L2_COLORSPACE_SRGB,
 174                 .priv = 0x0a},
 175         {176, 144, V4L2_PIX_FMT_KONICA420, V4L2_FIELD_NONE,
 176                 .bytesperline = 176,
 177                 .sizeimage = 176 * 144 * 3 / 2 + 960,
 178                 .colorspace = V4L2_COLORSPACE_SRGB,
 179                 .priv = 0x04},
 180         {320, 240, V4L2_PIX_FMT_KONICA420, V4L2_FIELD_NONE,
 181                 .bytesperline = 320,
 182                 .sizeimage = 320 * 240 * 3 / 2 + 960,
 183                 .colorspace = V4L2_COLORSPACE_SRGB,
 184                 .priv = 0x05},
 185 };
 186
 187 static void sd_isoc_irq(struct urb *urb);
 188
 189 static void reg_w(struct gspca_dev *gspca_dev, u16 value, u16 index)
 190 {
 191         struct usb_device *dev = gspca_dev->dev;
 192         int ret;
 193
 194         if (gspca_dev->usb_err < 0)
 195                 return;
 196         ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
 197                         0x02,
 198                         USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 199                         value,
 200                         index,
 201                         NULL,
 202                         0,
 203                         1000);
 204         if (ret < 0) {
 205                 pr_err("reg_w err %d\n", ret);
 206                 gspca_dev->usb_err = ret;
 207         }
 208 }
 209
 210 static void reg_r(struct gspca_dev *gspca_dev, u16 value, u16 index)
 211 {
 212         struct usb_device *dev = gspca_dev->dev;
 213         int ret;
 214
 215         if (gspca_dev->usb_err < 0)
 216                 return;
 217         ret = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 218                         0x03,
 219                         USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_DEVICE,
 220                         value,
 221                         index,
 222                         gspca_dev->usb_buf,
 223                         2,
 224                         1000);
 225         if (ret < 0) {
 226                 pr_err("reg_w err %d\n", ret);
 227                 gspca_dev->usb_err = ret;
 228         }
 229 }
 230
 231 static void konica_stream_on(struct gspca_dev *gspca_dev)
 232 {
 233         reg_w(gspca_dev, 1, 0x0b);
 234 }
 235
 236 static void konica_stream_off(struct gspca_dev *gspca_dev)
 237 {
 238         reg_w(gspca_dev, 0, 0x0b);
 239 }
 240
 241 /* this function is called at probe time */
 242 static int sd_config(struct gspca_dev *gspca_dev,
 243                         const struct usb_device_id *id)
 244 {
 245         struct sd *sd = (struct sd *) gspca_dev;
 246
 247         gspca_dev->cam.cam_mode = vga_mode;
 248         gspca_dev->cam.nmodes = ARRAY_SIZE(vga_mode);
 249         gspca_dev->cam.no_urb_create = 1;
 250         /* The highest alt setting has an isoc packetsize of 0, so we
 251            don't want to use it */
 252         gspca_dev->nbalt--;
 253
 254         sd->brightness  = BRIGHTNESS_DEFAULT;
 255         sd->contrast    = CONTRAST_DEFAULT;
 256         sd->saturation  = SATURATION_DEFAULT;
 257         sd->whitebal    = WHITEBAL_DEFAULT;
 258         sd->sharpness   = SHARPNESS_DEFAULT;
 259
 260         return 0;
 261 }
 262
 263 /* this function is called at probe and resume time */
 264 static int sd_init(struct gspca_dev *gspca_dev)
 265 {
 266         /* HDG not sure if these 2 reads are needed */
 267         reg_r(gspca_dev, 0, 0x10);
 268         PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x",
 269                gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);
 270         reg_r(gspca_dev, 0, 0x10);
 271         PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x",
 272                gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);
 273         reg_w(gspca_dev, 0, 0x0d);
 274
 275         return 0;
 276 }
 277
 278 static int sd_start(struct gspca_dev *gspca_dev)
 279 {
 280         struct sd *sd = (struct sd *) gspca_dev;
 281         struct urb *urb;
 282         int i, n, packet_size;
 283         struct usb_host_interface *alt;
 284         struct usb_interface *intf;
 285
 286         intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
 287         alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
 288         if (!alt) {
 289                 pr_err("Couldn't get altsetting\n");
 290                 return -EIO;
 291         }
 292
 293         packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 294
 295         reg_w(gspca_dev, sd->brightness, BRIGHTNESS_REG);
 296         reg_w(gspca_dev, sd->whitebal, WHITEBAL_REG);
 297         reg_w(gspca_dev, sd->contrast, CONTRAST_REG);
 298         reg_w(gspca_dev, sd->saturation, SATURATION_REG);
 299         reg_w(gspca_dev, sd->sharpness, SHARPNESS_REG);
 300
 301         n = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
 302         reg_w(gspca_dev, n, 0x08);
 303
 304         konica_stream_on(gspca_dev);
 305
 306         if (gspca_dev->usb_err)
 307                 return gspca_dev->usb_err;
 308
 309         /* create 4 URBs - 2 on endpoint 0x83 and 2 on 0x082 */
 310 #if MAX_NURBS < 4
 311 #error "Not enough URBs in the gspca table"
 312 #endif
 313 #define SD_NPKT 32
 314         for (n = 0; n < 4; n++) {
 315                 i = n & 1 ? 0 : 1;
 316                 packet_size =
 317                         le16_to_cpu(alt->endpoint[i].desc.wMaxPacketSize);
 318                 urb = usb_alloc_urb(SD_NPKT, GFP_KERNEL);
 319                 if (!urb) {
 320                         pr_err("usb_alloc_urb failed\n");
 321                         return -ENOMEM;
 322                 }
 323                 gspca_dev->urb[n] = urb;
 324                 urb->transfer_buffer = usb_alloc_coherent(gspca_dev->dev,
 325                                                 packet_size * SD_NPKT,
 326                                                 GFP_KERNEL,
 327                                                 &urb->transfer_dma);
 328                 if (urb->transfer_buffer == NULL) {
 329                         pr_err("usb_buffer_alloc failed\n");
 330                         return -ENOMEM;
 331                 }
 332
 333                 urb->dev = gspca_dev->dev;
 334                 urb->context = gspca_dev;
 335                 urb->transfer_buffer_length = packet_size * SD_NPKT;
 336                 urb->pipe = usb_rcvisocpipe(gspca_dev->dev,
 337                                         n & 1 ? 0x81 : 0x82);
 338                 urb->transfer_flags = URB_ISO_ASAP
 339                                         | URB_NO_TRANSFER_DMA_MAP;
 340                 urb->interval = 1;
 341                 urb->complete = sd_isoc_irq;
 342                 urb->number_of_packets = SD_NPKT;
 343                 for (i = 0; i < SD_NPKT; i++) {
 344                         urb->iso_frame_desc[i].length = packet_size;
 345                         urb->iso_frame_desc[i].offset = packet_size * i;
 346                 }
 347         }
 348
 349         return 0;
 350 }
 351
 352 static void sd_stopN(struct gspca_dev *gspca_dev)
 353 {
 354         struct sd *sd = (struct sd *) gspca_dev;
 355
 356         konica_stream_off(gspca_dev);
 357 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 358         /* Don't keep the button in the pressed state "forever" if it was
 359            pressed when streaming is stopped */
 360         if (sd->snapshot_pressed) {
 361                 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
 362                 input_sync(gspca_dev->input_dev);
 363                 sd->snapshot_pressed = 0;
 364         }
 365 #endif
 366 }
 367
 368 /* reception of an URB */
 369 static void sd_isoc_irq(struct urb *urb)
 370 {
 371         struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;
 372         struct sd *sd = (struct sd *) gspca_dev;
 373         struct urb *data_urb, *status_urb;
 374         u8 *data;
 375         int i, st;
 376
 377         PDEBUG(D_PACK, "sd isoc irq");
 378         if (!gspca_dev->streaming)
 379                 return;
 380
 381         if (urb->status != 0) {
 382                 if (urb->status == -ESHUTDOWN)
 383                         return;         /* disconnection */
 384 #ifdef CONFIG_PM
 385                 if (gspca_dev->frozen)
 386                         return;
 387 #endif
 388                 PDEBUG(D_ERR, "urb status: %d", urb->status);
 389                 st = usb_submit_urb(urb, GFP_ATOMIC);
 390                 if (st < 0)
 391                         pr_err("resubmit urb error %d\n", st);
 392                 return;
 393         }
 394
 395         /* if this is a data URB (ep 0x82), wait */
 396         if (urb->transfer_buffer_length > 32) {
 397                 sd->last_data_urb = urb;
 398                 return;
 399         }
 400
 401         status_urb = urb;
 402         data_urb   = sd->last_data_urb;
 403         sd->last_data_urb = NULL;
 404
 405         if (!data_urb || data_urb->start_frame != status_urb->start_frame) {
 406                 PDEBUG(D_ERR|D_PACK, "lost sync on frames");
 407                 goto resubmit;
 408         }
 409
 410         if (data_urb->number_of_packets != status_urb->number_of_packets) {
 411                 PDEBUG(D_ERR|D_PACK,
 412                        "no packets does not match, data: %d, status: %d",
 413                        data_urb->number_of_packets,
 414                        status_urb->number_of_packets);
 415                 goto resubmit;
 416         }
 417
 418         for (i = 0; i < status_urb->number_of_packets; i++) {
 419                 if (data_urb->iso_frame_desc[i].status ||
 420                     status_urb->iso_frame_desc[i].status) {
 421                         PDEBUG(D_ERR|D_PACK,
 422                                "pkt %d data-status %d, status-status %d", i,
 423                                data_urb->iso_frame_desc[i].status,
 424                                status_urb->iso_frame_desc[i].status);
 425                         gspca_dev->last_packet_type = DISCARD_PACKET;
 426                         continue;
 427                 }
 428
 429                 if (status_urb->iso_frame_desc[i].actual_length != 1) {
 430                         PDEBUG(D_ERR|D_PACK,
 431                                "bad status packet length %d",
 432                                status_urb->iso_frame_desc[i].actual_length);
 433                         gspca_dev->last_packet_type = DISCARD_PACKET;
 434                         continue;
 435                 }
 436
 437                 st = *((u8 *)status_urb->transfer_buffer
 438                                 + status_urb->iso_frame_desc[i].offset);
 439
 440                 data = (u8 *)data_urb->transfer_buffer
 441                                 + data_urb->iso_frame_desc[i].offset;
 442
 443                 /* st: 0x80-0xff: frame start with frame number (ie 0-7f)
 444                  * otherwise:
 445                  * bit 0 0: keep packet
 446                  *       1: drop packet (padding data)
 447                  *
 448                  * bit 4 0 button not clicked
 449                  *       1 button clicked
 450                  * button is used to `take a picture' (in software)
 451                  */
 452                 if (st & 0x80) {
 453                         gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
 454                         gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
 455                 } else {
 456 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 457                         u8 button_state = st & 0x40 ? 1 : 0;
 458                         if (sd->snapshot_pressed != button_state) {
 459                                 input_report_key(gspca_dev->input_dev,
 460                                                  KEY_CAMERA,
 461                                                  button_state);
 462                                 input_sync(gspca_dev->input_dev);
 463                                 sd->snapshot_pressed = button_state;
 464                         }
 465 #endif
 466                         if (st & 0x01)
 467                                 continue;
 468                 }
 469                 gspca_frame_add(gspca_dev, INTER_PACKET, data,
 470                                 data_urb->iso_frame_desc[i].actual_length);
 471         }
 472
 473 resubmit:
 474         if (data_urb) {
 475                 st = usb_submit_urb(data_urb, GFP_ATOMIC);
 476                 if (st < 0)
 477                         PDEBUG(D_ERR|D_PACK,
 478                                "usb_submit_urb(data_urb) ret %d", st);
 479         }
 480         st = usb_submit_urb(status_urb, GFP_ATOMIC);
 481         if (st < 0)
 482                 pr_err("usb_submit_urb(status_urb) ret %d\n", st);
 483 }
 484
 485 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 486 {
 487         struct sd *sd = (struct sd *) gspca_dev;
 488
 489         sd->brightness = val;
 490         if (gspca_dev->streaming) {
 491                 konica_stream_off(gspca_dev);
 492                 reg_w(gspca_dev, sd->brightness, BRIGHTNESS_REG);
 493                 konica_stream_on(gspca_dev);
 494         }
 495
 496         return 0;
 497 }
 498
 499 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 500 {
 501         struct sd *sd = (struct sd *) gspca_dev;
 502
 503         *val = sd->brightness;
 504
 505         return 0;
 506 }
 507
 508 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 509 {
 510         struct sd *sd = (struct sd *) gspca_dev;
 511
 512         sd->contrast = val;
 513         if (gspca_dev->streaming) {
 514                 konica_stream_off(gspca_dev);
 515                 reg_w(gspca_dev, sd->contrast, CONTRAST_REG);
 516                 konica_stream_on(gspca_dev);
 517         }
 518
 519         return 0;
 520 }
 521
 522 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 523 {
 524         struct sd *sd = (struct sd *) gspca_dev;
 525
 526         *val = sd->contrast;
 527
 528         return 0;
 529 }
 530
 531 static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val)
 532 {
 533         struct sd *sd = (struct sd *) gspca_dev;
 534
 535         sd->saturation = val;
 536         if (gspca_dev->streaming) {
 537                 konica_stream_off(gspca_dev);
 538                 reg_w(gspca_dev, sd->saturation, SATURATION_REG);
 539                 konica_stream_on(gspca_dev);
 540         }
 541         return 0;
 542 }
 543
 544 static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val)
 545 {
 546         struct sd *sd = (struct sd *) gspca_dev;
 547
 548         *val = sd->saturation;
 549
 550         return 0;
 551 }
 552
 553 static int sd_setwhitebal(struct gspca_dev *gspca_dev, __s32 val)
 554 {
 555         struct sd *sd = (struct sd *) gspca_dev;
 556
 557         sd->whitebal = val;
 558         if (gspca_dev->streaming) {
 559                 konica_stream_off(gspca_dev);
 560                 reg_w(gspca_dev, sd->whitebal, WHITEBAL_REG);
 561                 konica_stream_on(gspca_dev);
 562         }
 563         return 0;
 564 }
 565
 566 static int sd_getwhitebal(struct gspca_dev *gspca_dev, __s32 *val)
 567 {
 568         struct sd *sd = (struct sd *) gspca_dev;
 569
 570         *val = sd->whitebal;
 571
 572         return 0;
 573 }
 574
 575 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
 576 {
 577         struct sd *sd = (struct sd *) gspca_dev;
 578
 579         sd->sharpness = val;
 580         if (gspca_dev->streaming) {
 581                 konica_stream_off(gspca_dev);
 582                 reg_w(gspca_dev, sd->sharpness, SHARPNESS_REG);
 583                 konica_stream_on(gspca_dev);
 584         }
 585         return 0;
 586 }
 587
 588 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
 589 {
 590         struct sd *sd = (struct sd *) gspca_dev;
 591
 592         *val = sd->sharpness;
 593
 594         return 0;
 595 }
 596
 597 /* sub-driver description */
 598 static const struct sd_desc sd_desc = {
 599         .name = MODULE_NAME,
 600         .ctrls = sd_ctrls,
 601         .nctrls = ARRAY_SIZE(sd_ctrls),
 602         .config = sd_config,
 603         .init = sd_init,
 604         .start = sd_start,
 605         .stopN = sd_stopN,
 606 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 607         .other_input = 1,
 608 #endif
 609 };
 610
 611 /* -- module initialisation -- */
 612 static const struct usb_device_id device_table[] = {
 613         {USB_DEVICE(0x04c8, 0x0720)}, /* Intel YC 76 */
 614         {}
 615 };
 616 MODULE_DEVICE_TABLE(usb, device_table);
 617
 618 /* -- device connect -- */
 619 static int sd_probe(struct usb_interface *intf,
 620                         const struct usb_device_id *id)
 621 {
 622         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 623                                 THIS_MODULE);
 624 }
 625
 626 static struct usb_driver sd_driver = {
 627         .name = MODULE_NAME,
 628         .id_table = device_table,
 629         .probe = sd_probe,
 630         .disconnect = gspca_disconnect,
 631 #ifdef CONFIG_PM
 632         .suspend = gspca_suspend,
 633         .resume = gspca_resume,
 634 #endif
 635 };
 636
 637 /* -- module insert / remove -- */
 638 static int __init sd_mod_init(void)
 639 {
 640         return usb_register(&sd_driver);
 641 }
 642 static void __exit sd_mod_exit(void)
 643 {
 644         usb_deregister(&sd_driver);
 645 }
 646
 647 module_init(sd_mod_init);
 648 module_exit(sd_mod_exit);