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
 251         sd->brightness  = BRIGHTNESS_DEFAULT;
 252         sd->contrast    = CONTRAST_DEFAULT;
 253         sd->saturation  = SATURATION_DEFAULT;
 254         sd->whitebal    = WHITEBAL_DEFAULT;
 255         sd->sharpness   = SHARPNESS_DEFAULT;
 256
 257         return 0;
 258 }
 259
 260 /* this function is called at probe and resume time */
 261 static int sd_init(struct gspca_dev *gspca_dev)
 262 {
 263         /* HDG not sure if these 2 reads are needed */
 264         reg_r(gspca_dev, 0, 0x10);
 265         PDEBUG(D_PROBE, "Reg 0x10 reads: %02x %02x",
 266                gspca_dev->usb_buf[0], gspca_dev->usb_buf[1]);
 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_w(gspca_dev, 0, 0x0d);
 271
 272         return 0;
 273 }
 274
 275 static int sd_start(struct gspca_dev *gspca_dev)
 276 {
 277         struct sd *sd = (struct sd *) gspca_dev;
 278         struct urb *urb;
 279         int i, n, packet_size;
 280         struct usb_host_interface *alt;
 281         struct usb_interface *intf;
 282
 283         intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
 284         alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
 285         if (!alt) {
 286                 pr_err("Couldn't get altsetting\n");
 287                 return -EIO;
 288         }
 289
 290         packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 291
 292         reg_w(gspca_dev, sd->brightness, BRIGHTNESS_REG);
 293         reg_w(gspca_dev, sd->whitebal, WHITEBAL_REG);
 294         reg_w(gspca_dev, sd->contrast, CONTRAST_REG);
 295         reg_w(gspca_dev, sd->saturation, SATURATION_REG);
 296         reg_w(gspca_dev, sd->sharpness, SHARPNESS_REG);
 297
 298         n = gspca_dev->cam.cam_mode[gspca_dev->curr_mode].priv;
 299         reg_w(gspca_dev, n, 0x08);
 300
 301         konica_stream_on(gspca_dev);
 302
 303         if (gspca_dev->usb_err)
 304                 return gspca_dev->usb_err;
 305
 306         /* create 4 URBs - 2 on endpoint 0x83 and 2 on 0x082 */
 307 #if MAX_NURBS < 4
 308 #error "Not enough URBs in the gspca table"
 309 #endif
 310 #define SD_NPKT 32
 311         for (n = 0; n < 4; n++) {
 312                 i = n & 1 ? 0 : 1;
 313                 packet_size =
 314                         le16_to_cpu(alt->endpoint[i].desc.wMaxPacketSize);
 315                 urb = usb_alloc_urb(SD_NPKT, GFP_KERNEL);
 316                 if (!urb) {
 317                         pr_err("usb_alloc_urb failed\n");
 318                         return -ENOMEM;
 319                 }
 320                 gspca_dev->urb[n] = urb;
 321                 urb->transfer_buffer = usb_alloc_coherent(gspca_dev->dev,
 322                                                 packet_size * SD_NPKT,
 323                                                 GFP_KERNEL,
 324                                                 &urb->transfer_dma);
 325                 if (urb->transfer_buffer == NULL) {
 326                         pr_err("usb_buffer_alloc failed\n");
 327                         return -ENOMEM;
 328                 }
 329
 330                 urb->dev = gspca_dev->dev;
 331                 urb->context = gspca_dev;
 332                 urb->transfer_buffer_length = packet_size * SD_NPKT;
 333                 urb->pipe = usb_rcvisocpipe(gspca_dev->dev,
 334                                         n & 1 ? 0x81 : 0x82);
 335                 urb->transfer_flags = URB_ISO_ASAP
 336                                         | URB_NO_TRANSFER_DMA_MAP;
 337                 urb->interval = 1;
 338                 urb->complete = sd_isoc_irq;
 339                 urb->number_of_packets = SD_NPKT;
 340                 for (i = 0; i < SD_NPKT; i++) {
 341                         urb->iso_frame_desc[i].length = packet_size;
 342                         urb->iso_frame_desc[i].offset = packet_size * i;
 343                 }
 344         }
 345
 346         return 0;
 347 }
 348
 349 static void sd_stopN(struct gspca_dev *gspca_dev)
 350 {
 351         struct sd *sd = (struct sd *) gspca_dev;
 352
 353         konica_stream_off(gspca_dev);
 354 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 355         /* Don't keep the button in the pressed state "forever" if it was
 356            pressed when streaming is stopped */
 357         if (sd->snapshot_pressed) {
 358                 input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
 359                 input_sync(gspca_dev->input_dev);
 360                 sd->snapshot_pressed = 0;
 361         }
 362 #endif
 363 }
 364
 365 /* reception of an URB */
 366 static void sd_isoc_irq(struct urb *urb)
 367 {
 368         struct gspca_dev *gspca_dev = (struct gspca_dev *) urb->context;
 369         struct sd *sd = (struct sd *) gspca_dev;
 370         struct urb *data_urb, *status_urb;
 371         u8 *data;
 372         int i, st;
 373
 374         PDEBUG(D_PACK, "sd isoc irq");
 375         if (!gspca_dev->streaming)
 376                 return;
 377
 378         if (urb->status != 0) {
 379                 if (urb->status == -ESHUTDOWN)
 380                         return;         /* disconnection */
 381 #ifdef CONFIG_PM
 382                 if (gspca_dev->frozen)
 383                         return;
 384 #endif
 385                 PDEBUG(D_ERR, "urb status: %d", urb->status);
 386                 st = usb_submit_urb(urb, GFP_ATOMIC);
 387                 if (st < 0)
 388                         pr_err("resubmit urb error %d\n", st);
 389                 return;
 390         }
 391
 392         /* if this is a data URB (ep 0x82), wait */
 393         if (urb->transfer_buffer_length > 32) {
 394                 sd->last_data_urb = urb;
 395                 return;
 396         }
 397
 398         status_urb = urb;
 399         data_urb   = sd->last_data_urb;
 400         sd->last_data_urb = NULL;
 401
 402         if (!data_urb || data_urb->start_frame != status_urb->start_frame) {
 403                 PDEBUG(D_ERR|D_PACK, "lost sync on frames");
 404                 goto resubmit;
 405         }
 406
 407         if (data_urb->number_of_packets != status_urb->number_of_packets) {
 408                 PDEBUG(D_ERR|D_PACK,
 409                        "no packets does not match, data: %d, status: %d",
 410                        data_urb->number_of_packets,
 411                        status_urb->number_of_packets);
 412                 goto resubmit;
 413         }
 414
 415         for (i = 0; i < status_urb->number_of_packets; i++) {
 416                 if (data_urb->iso_frame_desc[i].status ||
 417                     status_urb->iso_frame_desc[i].status) {
 418                         PDEBUG(D_ERR|D_PACK,
 419                                "pkt %d data-status %d, status-status %d", i,
 420                                data_urb->iso_frame_desc[i].status,
 421                                status_urb->iso_frame_desc[i].status);
 422                         gspca_dev->last_packet_type = DISCARD_PACKET;
 423                         continue;
 424                 }
 425
 426                 if (status_urb->iso_frame_desc[i].actual_length != 1) {
 427                         PDEBUG(D_ERR|D_PACK,
 428                                "bad status packet length %d",
 429                                status_urb->iso_frame_desc[i].actual_length);
 430                         gspca_dev->last_packet_type = DISCARD_PACKET;
 431                         continue;
 432                 }
 433
 434                 st = *((u8 *)status_urb->transfer_buffer
 435                                 + status_urb->iso_frame_desc[i].offset);
 436
 437                 data = (u8 *)data_urb->transfer_buffer
 438                                 + data_urb->iso_frame_desc[i].offset;
 439
 440                 /* st: 0x80-0xff: frame start with frame number (ie 0-7f)
 441                  * otherwise:
 442                  * bit 0 0: keep packet
 443                  *       1: drop packet (padding data)
 444                  *
 445                  * bit 4 0 button not clicked
 446                  *       1 button clicked
 447                  * button is used to `take a picture' (in software)
 448                  */
 449                 if (st & 0x80) {
 450                         gspca_frame_add(gspca_dev, LAST_PACKET, NULL, 0);
 451                         gspca_frame_add(gspca_dev, FIRST_PACKET, NULL, 0);
 452                 } else {
 453 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 454                         u8 button_state = st & 0x40 ? 1 : 0;
 455                         if (sd->snapshot_pressed != button_state) {
 456                                 input_report_key(gspca_dev->input_dev,
 457                                                  KEY_CAMERA,
 458                                                  button_state);
 459                                 input_sync(gspca_dev->input_dev);
 460                                 sd->snapshot_pressed = button_state;
 461                         }
 462 #endif
 463                         if (st & 0x01)
 464                                 continue;
 465                 }
 466                 gspca_frame_add(gspca_dev, INTER_PACKET, data,
 467                                 data_urb->iso_frame_desc[i].actual_length);
 468         }
 469
 470 resubmit:
 471         if (data_urb) {
 472                 st = usb_submit_urb(data_urb, GFP_ATOMIC);
 473                 if (st < 0)
 474                         PDEBUG(D_ERR|D_PACK,
 475                                "usb_submit_urb(data_urb) ret %d", st);
 476         }
 477         st = usb_submit_urb(status_urb, GFP_ATOMIC);
 478         if (st < 0)
 479                 pr_err("usb_submit_urb(status_urb) ret %d\n", st);
 480 }
 481
 482 static int sd_setbrightness(struct gspca_dev *gspca_dev, __s32 val)
 483 {
 484         struct sd *sd = (struct sd *) gspca_dev;
 485
 486         sd->brightness = val;
 487         if (gspca_dev->streaming) {
 488                 konica_stream_off(gspca_dev);
 489                 reg_w(gspca_dev, sd->brightness, BRIGHTNESS_REG);
 490                 konica_stream_on(gspca_dev);
 491         }
 492
 493         return 0;
 494 }
 495
 496 static int sd_getbrightness(struct gspca_dev *gspca_dev, __s32 *val)
 497 {
 498         struct sd *sd = (struct sd *) gspca_dev;
 499
 500         *val = sd->brightness;
 501
 502         return 0;
 503 }
 504
 505 static int sd_setcontrast(struct gspca_dev *gspca_dev, __s32 val)
 506 {
 507         struct sd *sd = (struct sd *) gspca_dev;
 508
 509         sd->contrast = val;
 510         if (gspca_dev->streaming) {
 511                 konica_stream_off(gspca_dev);
 512                 reg_w(gspca_dev, sd->contrast, CONTRAST_REG);
 513                 konica_stream_on(gspca_dev);
 514         }
 515
 516         return 0;
 517 }
 518
 519 static int sd_getcontrast(struct gspca_dev *gspca_dev, __s32 *val)
 520 {
 521         struct sd *sd = (struct sd *) gspca_dev;
 522
 523         *val = sd->contrast;
 524
 525         return 0;
 526 }
 527
 528 static int sd_setsaturation(struct gspca_dev *gspca_dev, __s32 val)
 529 {
 530         struct sd *sd = (struct sd *) gspca_dev;
 531
 532         sd->saturation = val;
 533         if (gspca_dev->streaming) {
 534                 konica_stream_off(gspca_dev);
 535                 reg_w(gspca_dev, sd->saturation, SATURATION_REG);
 536                 konica_stream_on(gspca_dev);
 537         }
 538         return 0;
 539 }
 540
 541 static int sd_getsaturation(struct gspca_dev *gspca_dev, __s32 *val)
 542 {
 543         struct sd *sd = (struct sd *) gspca_dev;
 544
 545         *val = sd->saturation;
 546
 547         return 0;
 548 }
 549
 550 static int sd_setwhitebal(struct gspca_dev *gspca_dev, __s32 val)
 551 {
 552         struct sd *sd = (struct sd *) gspca_dev;
 553
 554         sd->whitebal = val;
 555         if (gspca_dev->streaming) {
 556                 konica_stream_off(gspca_dev);
 557                 reg_w(gspca_dev, sd->whitebal, WHITEBAL_REG);
 558                 konica_stream_on(gspca_dev);
 559         }
 560         return 0;
 561 }
 562
 563 static int sd_getwhitebal(struct gspca_dev *gspca_dev, __s32 *val)
 564 {
 565         struct sd *sd = (struct sd *) gspca_dev;
 566
 567         *val = sd->whitebal;
 568
 569         return 0;
 570 }
 571
 572 static int sd_setsharpness(struct gspca_dev *gspca_dev, __s32 val)
 573 {
 574         struct sd *sd = (struct sd *) gspca_dev;
 575
 576         sd->sharpness = val;
 577         if (gspca_dev->streaming) {
 578                 konica_stream_off(gspca_dev);
 579                 reg_w(gspca_dev, sd->sharpness, SHARPNESS_REG);
 580                 konica_stream_on(gspca_dev);
 581         }
 582         return 0;
 583 }
 584
 585 static int sd_getsharpness(struct gspca_dev *gspca_dev, __s32 *val)
 586 {
 587         struct sd *sd = (struct sd *) gspca_dev;
 588
 589         *val = sd->sharpness;
 590
 591         return 0;
 592 }
 593
 594 /* sub-driver description */
 595 static const struct sd_desc sd_desc = {
 596         .name = MODULE_NAME,
 597         .ctrls = sd_ctrls,
 598         .nctrls = ARRAY_SIZE(sd_ctrls),
 599         .config = sd_config,
 600         .init = sd_init,
 601         .start = sd_start,
 602         .stopN = sd_stopN,
 603 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 604         .other_input = 1,
 605 #endif
 606 };
 607
 608 /* -- module initialisation -- */
 609 static const struct usb_device_id device_table[] = {
 610         {USB_DEVICE(0x04c8, 0x0720)}, /* Intel YC 76 */
 611         {}
 612 };
 613 MODULE_DEVICE_TABLE(usb, device_table);
 614
 615 /* -- device connect -- */
 616 static int sd_probe(struct usb_interface *intf,
 617                         const struct usb_device_id *id)
 618 {
 619         return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 620                                 THIS_MODULE);
 621 }
 622
 623 static struct usb_driver sd_driver = {
 624         .name = MODULE_NAME,
 625         .id_table = device_table,
 626         .probe = sd_probe,
 627         .disconnect = gspca_disconnect,
 628 #ifdef CONFIG_PM
 629         .suspend = gspca_suspend,
 630         .resume = gspca_resume,
 631 #endif
 632 };
 633
 634 module_usb_driver(sd_driver);