LXR linux/drivers/media/video/gspca/stv06xx/stv06xx.c

   1/*
   2 * Copyright (c) 2001 Jean-Fredric Clere, Nikolas Zimmermann, Georg Acher
   3 *                    Mark Cave-Ayland, Carlo E Prelz, Dick Streefland
   4 * Copyright (c) 2002, 2003 Tuukka Toivonen
   5 * Copyright (c) 2008 Erik Andrén
   6 *
   7 * This program is free software; you can redistribute it and/or modify
   8 * it under the terms of the GNU General Public License as published by
   9 * the Free Software Foundation; either version 2 of the License, or
  10 * (at your option) any later version.
  11 *
  12 * This program is distributed in the hope that it will be useful,
  13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 * GNU General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20 *
  21 * P/N 861037:      Sensor HDCS1000        ASIC STV0600
  22 * P/N 861050-0010: Sensor HDCS1000        ASIC STV0600
  23 * P/N 861050-0020: Sensor Photobit PB100  ASIC STV0600-1 - QuickCam Express
  24 * P/N 861055:      Sensor ST VV6410       ASIC STV0610   - LEGO cam
  25 * P/N 861075-0040: Sensor HDCS1000        ASIC
  26 * P/N 961179-0700: Sensor ST VV6410       ASIC STV0602   - Dexxa WebCam USB
  27 * P/N 861040-0000: Sensor ST VV6410       ASIC STV0610   - QuickCam Web
  28 */
  29
  30#include <linux/input.h>
  31#include "stv06xx_sensor.h"
  32
  33MODULE_AUTHOR("Erik Andrén");
  34MODULE_DESCRIPTION("STV06XX USB Camera Driver");
  35MODULE_LICENSE("GPL");
  36
  37static int dump_bridge;
  38static int dump_sensor;
  39
  40int stv06xx_write_bridge(struct sd *sd, u16 address, u16 i2c_data)
  41{
  42        int err;
  43        struct usb_device *udev = sd->gspca_dev.dev;
  44        __u8 *buf = sd->gspca_dev.usb_buf;
  45        u8 len = (i2c_data > 0xff) ? 2 : 1;
  46
  47        buf[0] = i2c_data & 0xff;
  48        buf[1] = (i2c_data >> 8) & 0xff;
  49
  50        err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
  51                              0x04, 0x40, address, 0, buf, len,
  52                              STV06XX_URB_MSG_TIMEOUT);
  53
  54        PDEBUG(D_CONF, "Written 0x%x to address 0x%x, status: %d",
  55               i2c_data, address, err);
  56
  57        return (err < 0) ? err : 0;
  58}
  59
  60int stv06xx_read_bridge(struct sd *sd, u16 address, u8 *i2c_data)
  61{
  62        int err;
  63        struct usb_device *udev = sd->gspca_dev.dev;
  64        __u8 *buf = sd->gspca_dev.usb_buf;
  65
  66        err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
  67                              0x04, 0xc0, address, 0, buf, 1,
  68                              STV06XX_URB_MSG_TIMEOUT);
  69
  70        *i2c_data = buf[0];
  71
  72        PDEBUG(D_CONF, "Reading 0x%x from address 0x%x, status %d",
  73               *i2c_data, address, err);
  74
  75        return (err < 0) ? err : 0;
  76}
  77
  78/* Wraps the normal write sensor bytes / words functions for writing a
  79   single value */
  80int stv06xx_write_sensor(struct sd *sd, u8 address, u16 value)
  81{
  82        if (sd->sensor->i2c_len == 2) {
  83                u16 data[2] = { address, value };
  84                return stv06xx_write_sensor_words(sd, data, 1);
  85        } else {
  86                u8 data[2] = { address, value };
  87                return stv06xx_write_sensor_bytes(sd, data, 1);
  88        }
  89}
  90
  91static int stv06xx_write_sensor_finish(struct sd *sd)
  92{
  93        int err = 0;
  94
  95        if (sd->bridge == BRIDGE_STV610) {
  96                struct usb_device *udev = sd->gspca_dev.dev;
  97                __u8 *buf = sd->gspca_dev.usb_buf;
  98
  99                buf[0] = 0;
 100                err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 101                                      0x04, 0x40, 0x1704, 0, buf, 1,
 102                                      STV06XX_URB_MSG_TIMEOUT);
 103        }
 104
 105        return (err < 0) ? err : 0;
 106}
 107
 108int stv06xx_write_sensor_bytes(struct sd *sd, const u8 *data, u8 len)
 109{
 110        int err, i, j;
 111        struct usb_device *udev = sd->gspca_dev.dev;
 112        __u8 *buf = sd->gspca_dev.usb_buf;
 113
 114        PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len);
 115        for (i = 0; i < len;) {
 116                /* Build the command buffer */
 117                memset(buf, 0, I2C_BUFFER_LENGTH);
 118                for (j = 0; j < I2C_MAX_BYTES && i < len; j++, i++) {
 119                        buf[j] = data[2*i];
 120                        buf[0x10 + j] = data[2*i+1];
 121                        PDEBUG(D_CONF, "I2C: Writing 0x%02x to reg 0x%02x",
 122                        data[2*i+1], data[2*i]);
 123                }
 124                buf[0x20] = sd->sensor->i2c_addr;
 125                buf[0x21] = j - 1; /* Number of commands to send - 1 */
 126                buf[0x22] = I2C_WRITE_CMD;
 127                err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 128                                      0x04, 0x40, 0x0400, 0, buf,
 129                                      I2C_BUFFER_LENGTH,
 130                                      STV06XX_URB_MSG_TIMEOUT);
 131                if (err < 0)
 132                        return err;
 133        }
 134        return stv06xx_write_sensor_finish(sd);
 135}
 136
 137int stv06xx_write_sensor_words(struct sd *sd, const u16 *data, u8 len)
 138{
 139        int err, i, j;
 140        struct usb_device *udev = sd->gspca_dev.dev;
 141        __u8 *buf = sd->gspca_dev.usb_buf;
 142
 143        PDEBUG(D_CONF, "I2C: Command buffer contains %d entries", len);
 144
 145        for (i = 0; i < len;) {
 146                /* Build the command buffer */
 147                memset(buf, 0, I2C_BUFFER_LENGTH);
 148                for (j = 0; j < I2C_MAX_WORDS && i < len; j++, i++) {
 149                        buf[j] = data[2*i];
 150                        buf[0x10 + j * 2] = data[2*i+1];
 151                        buf[0x10 + j * 2 + 1] = data[2*i+1] >> 8;
 152                        PDEBUG(D_CONF, "I2C: Writing 0x%04x to reg 0x%02x",
 153                                data[2*i+1], data[2*i]);
 154                }
 155                buf[0x20] = sd->sensor->i2c_addr;
 156                buf[0x21] = j - 1; /* Number of commands to send - 1 */
 157                buf[0x22] = I2C_WRITE_CMD;
 158                err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 159                                0x04, 0x40, 0x0400, 0, buf,
 160                                I2C_BUFFER_LENGTH,
 161                                STV06XX_URB_MSG_TIMEOUT);
 162                if (err < 0)
 163                        return err;
 164        }
 165        return stv06xx_write_sensor_finish(sd);
 166}
 167
 168int stv06xx_read_sensor(struct sd *sd, const u8 address, u16 *value)
 169{
 170        int err;
 171        struct usb_device *udev = sd->gspca_dev.dev;
 172        __u8 *buf = sd->gspca_dev.usb_buf;
 173
 174        err = stv06xx_write_bridge(sd, STV_I2C_FLUSH, sd->sensor->i2c_flush);
 175        if (err < 0)
 176                return err;
 177
 178        /* Clear mem */
 179        memset(buf, 0, I2C_BUFFER_LENGTH);
 180
 181        buf[0] = address;
 182        buf[0x20] = sd->sensor->i2c_addr;
 183        buf[0x21] = 0;
 184
 185        /* Read I2C register */
 186        buf[0x22] = I2C_READ_CMD;
 187
 188        err = usb_control_msg(udev, usb_sndctrlpipe(udev, 0),
 189                              0x04, 0x40, 0x1400, 0, buf, I2C_BUFFER_LENGTH,
 190                              STV06XX_URB_MSG_TIMEOUT);
 191        if (err < 0) {
 192                err("I2C: Read error writing address: %d", err);
 193                return err;
 194        }
 195
 196        err = usb_control_msg(udev, usb_rcvctrlpipe(udev, 0),
 197                              0x04, 0xc0, 0x1410, 0, buf, sd->sensor->i2c_len,
 198                              STV06XX_URB_MSG_TIMEOUT);
 199        if (sd->sensor->i2c_len == 2)
 200                *value = buf[0] | (buf[1] << 8);
 201        else
 202                *value = buf[0];
 203
 204        PDEBUG(D_CONF, "I2C: Read 0x%x from address 0x%x, status: %d",
 205               *value, address, err);
 206
 207        return (err < 0) ? err : 0;
 208}
 209
 210/* Dumps all bridge registers */
 211static void stv06xx_dump_bridge(struct sd *sd)
 212{
 213        int i;
 214        u8 data, buf;
 215
 216        info("Dumping all stv06xx bridge registers");
 217        for (i = 0x1400; i < 0x160f; i++) {
 218                stv06xx_read_bridge(sd, i, &data);
 219
 220                info("Read 0x%x from address 0x%x", data, i);
 221        }
 222
 223        info("Testing stv06xx bridge registers for writability");
 224        for (i = 0x1400; i < 0x160f; i++) {
 225                stv06xx_read_bridge(sd, i, &data);
 226                buf = data;
 227
 228                stv06xx_write_bridge(sd, i, 0xff);
 229                stv06xx_read_bridge(sd, i, &data);
 230                if (data == 0xff)
 231                        info("Register 0x%x is read/write", i);
 232                else if (data != buf)
 233                        info("Register 0x%x is read/write,"
 234                             " but only partially", i);
 235                else
 236                        info("Register 0x%x is read-only", i);
 237
 238                stv06xx_write_bridge(sd, i, buf);
 239        }
 240}
 241
 242/* this function is called at probe and resume time */
 243static int stv06xx_init(struct gspca_dev *gspca_dev)
 244{
 245        struct sd *sd = (struct sd *) gspca_dev;
 246        int err;
 247
 248        PDEBUG(D_PROBE, "Initializing camera");
 249
 250        /* Let the usb init settle for a bit
 251           before performing the initialization */
 252        msleep(250);
 253
 254        err = sd->sensor->init(sd);
 255
 256        if (dump_sensor && sd->sensor->dump)
 257                sd->sensor->dump(sd);
 258
 259        return (err < 0) ? err : 0;
 260}
 261
 262/* Start the camera */
 263static int stv06xx_start(struct gspca_dev *gspca_dev)
 264{
 265        struct sd *sd = (struct sd *) gspca_dev;
 266        struct usb_host_interface *alt;
 267        struct usb_interface *intf;
 268        int err, packet_size;
 269
 270        intf = usb_ifnum_to_if(sd->gspca_dev.dev, sd->gspca_dev.iface);
 271        alt = usb_altnum_to_altsetting(intf, sd->gspca_dev.alt);
 272        if (!alt) {
 273                PDEBUG(D_ERR, "Couldn't get altsetting");
 274                return -EIO;
 275        }
 276
 277        packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 278        err = stv06xx_write_bridge(sd, STV_ISO_SIZE_L, packet_size);
 279        if (err < 0)
 280                return err;
 281
 282        /* Prepare the sensor for start */
 283        err = sd->sensor->start(sd);
 284        if (err < 0)
 285                goto out;
 286
 287        /* Start isochronous streaming */
 288        err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 1);
 289
 290out:
 291        if (err < 0)
 292                PDEBUG(D_STREAM, "Starting stream failed");
 293        else
 294                PDEBUG(D_STREAM, "Started streaming");
 295
 296        return (err < 0) ? err : 0;
 297}
 298
 299static int stv06xx_isoc_init(struct gspca_dev *gspca_dev)
 300{
 301        struct usb_host_interface *alt;
 302        struct sd *sd = (struct sd *) gspca_dev;
 303
 304        /* Start isoc bandwidth "negotiation" at max isoc bandwidth */
 305        alt = &gspca_dev->dev->config->intf_cache[0]->altsetting[1];
 306        alt->endpoint[0].desc.wMaxPacketSize =
 307                cpu_to_le16(sd->sensor->max_packet_size[gspca_dev->curr_mode]);
 308
 309        return 0;
 310}
 311
 312static int stv06xx_isoc_nego(struct gspca_dev *gspca_dev)
 313{
 314        int ret, packet_size, min_packet_size;
 315        struct usb_host_interface *alt;
 316        struct sd *sd = (struct sd *) gspca_dev;
 317
 318        alt = &gspca_dev->dev->config->intf_cache[0]->altsetting[1];
 319        packet_size = le16_to_cpu(alt->endpoint[0].desc.wMaxPacketSize);
 320        min_packet_size = sd->sensor->min_packet_size[gspca_dev->curr_mode];
 321        if (packet_size <= min_packet_size)
 322                return -EIO;
 323
 324        packet_size -= 100;
 325        if (packet_size < min_packet_size)
 326                packet_size = min_packet_size;
 327        alt->endpoint[0].desc.wMaxPacketSize = cpu_to_le16(packet_size);
 328
 329        ret = usb_set_interface(gspca_dev->dev, gspca_dev->iface, 1);
 330        if (ret < 0)
 331                PDEBUG(D_ERR|D_STREAM, "set alt 1 err %d", ret);
 332
 333        return ret;
 334}
 335
 336static void stv06xx_stopN(struct gspca_dev *gspca_dev)
 337{
 338        int err;
 339        struct sd *sd = (struct sd *) gspca_dev;
 340
 341        /* stop ISO-streaming */
 342        err = stv06xx_write_bridge(sd, STV_ISO_ENABLE, 0);
 343        if (err < 0)
 344                goto out;
 345
 346        err = sd->sensor->stop(sd);
 347
 348out:
 349        if (err < 0)
 350                PDEBUG(D_STREAM, "Failed to stop stream");
 351        else
 352                PDEBUG(D_STREAM, "Stopped streaming");
 353}
 354
 355/*
 356 * Analyse an USB packet of the data stream and store it appropriately.
 357 * Each packet contains an integral number of chunks. Each chunk has
 358 * 2-bytes identification, followed by 2-bytes that describe the chunk
 359 * length. Known/guessed chunk identifications are:
 360 * 8001/8005/C001/C005 - Begin new frame
 361 * 8002/8006/C002/C006 - End frame
 362 * 0200/4200           - Contains actual image data, bayer or compressed
 363 * 0005                - 11 bytes of unknown data
 364 * 0100                - 2 bytes of unknown data
 365 * The 0005 and 0100 chunks seem to appear only in compressed stream.
 366 */
 367static void stv06xx_pkt_scan(struct gspca_dev *gspca_dev,
 368                        u8 *data,                       /* isoc packet */
 369                        int len)                        /* iso packet length */
 370{
 371        struct sd *sd = (struct sd *) gspca_dev;
 372
 373        PDEBUG(D_PACK, "Packet of length %d arrived", len);
 374
 375        /* A packet may contain several frames
 376           loop until the whole packet is reached */
 377        while (len) {
 378                int id, chunk_len;
 379
 380                if (len < 4) {
 381                        PDEBUG(D_PACK, "Packet is smaller than 4 bytes");
 382                        return;
 383                }
 384
 385                /* Capture the id */
 386                id = (data[0] << 8) | data[1];
 387
 388                /* Capture the chunk length */
 389                chunk_len = (data[2] << 8) | data[3];
 390                PDEBUG(D_PACK, "Chunk id: %x, length: %d", id, chunk_len);
 391
 392                data += 4;
 393                len -= 4;
 394
 395                if (len < chunk_len) {
 396                        PDEBUG(D_ERR, "URB packet length is smaller"
 397                                " than the specified chunk length");
 398                        gspca_dev->last_packet_type = DISCARD_PACKET;
 399                        return;
 400                }
 401
 402                /* First byte seem to be 02=data 2nd byte is unknown??? */
 403                if (sd->bridge == BRIDGE_ST6422 && (id & 0xff00) == 0x0200)
 404                        goto frame_data;
 405
 406                switch (id) {
 407                case 0x0200:
 408                case 0x4200:
 409frame_data:
 410                        PDEBUG(D_PACK, "Frame data packet detected");
 411
 412                        if (sd->to_skip) {
 413                                int skip = (sd->to_skip < chunk_len) ?
 414                                            sd->to_skip : chunk_len;
 415                                data += skip;
 416                                len -= skip;
 417                                chunk_len -= skip;
 418                                sd->to_skip -= skip;
 419                        }
 420
 421                        gspca_frame_add(gspca_dev, INTER_PACKET,
 422                                        data, chunk_len);
 423                        break;
 424
 425                case 0x8001:
 426                case 0x8005:
 427                case 0xc001:
 428                case 0xc005:
 429                        PDEBUG(D_PACK, "Starting new frame");
 430
 431                        /* Create a new frame, chunk length should be zero */
 432                        gspca_frame_add(gspca_dev, FIRST_PACKET,
 433                                        NULL, 0);
 434
 435                        if (sd->bridge == BRIDGE_ST6422)
 436                                sd->to_skip = gspca_dev->width * 4;
 437
 438                        if (chunk_len)
 439                                PDEBUG(D_ERR, "Chunk length is "
 440                                              "non-zero on a SOF");
 441                        break;
 442
 443                case 0x8002:
 444                case 0x8006:
 445                case 0xc002:
 446                        PDEBUG(D_PACK, "End of frame detected");
 447
 448                        /* Complete the last frame (if any) */
 449                        gspca_frame_add(gspca_dev, LAST_PACKET,
 450                                        NULL, 0);
 451
 452                        if (chunk_len)
 453                                PDEBUG(D_ERR, "Chunk length is "
 454                                              "non-zero on a EOF");
 455                        break;
 456
 457                case 0x0005:
 458                        PDEBUG(D_PACK, "Chunk 0x005 detected");
 459                        /* Unknown chunk with 11 bytes of data,
 460                           occurs just before end of each frame
 461                           in compressed mode */
 462                        break;
 463
 464                case 0x0100:
 465                        PDEBUG(D_PACK, "Chunk 0x0100 detected");
 466                        /* Unknown chunk with 2 bytes of data,
 467                           occurs 2-3 times per USB interrupt */
 468                        break;
 469                case 0x42ff:
 470                        PDEBUG(D_PACK, "Chunk 0x42ff detected");
 471                        /* Special chunk seen sometimes on the ST6422 */
 472                        break;
 473                default:
 474                        PDEBUG(D_PACK, "Unknown chunk 0x%04x detected", id);
 475                        /* Unknown chunk */
 476                }
 477                data    += chunk_len;
 478                len     -= chunk_len;
 479        }
 480}
 481
 482#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 483static int sd_int_pkt_scan(struct gspca_dev *gspca_dev,
 484                        u8 *data,               /* interrupt packet data */
 485                        int len)                /* interrupt packet length */
 486{
 487        int ret = -EINVAL;
 488
 489        if (len == 1 && data[0] == 0x80) {
 490                input_report_key(gspca_dev->input_dev, KEY_CAMERA, 1);
 491                input_sync(gspca_dev->input_dev);
 492                ret = 0;
 493        }
 494
 495        if (len == 1 && data[0] == 0x88) {
 496                input_report_key(gspca_dev->input_dev, KEY_CAMERA, 0);
 497                input_sync(gspca_dev->input_dev);
 498                ret = 0;
 499        }
 500
 501        return ret;
 502}
 503#endif
 504
 505static int stv06xx_config(struct gspca_dev *gspca_dev,
 506                          const struct usb_device_id *id);
 507
 508/* sub-driver description */
 509static const struct sd_desc sd_desc = {
 510        .name = MODULE_NAME,
 511        .config = stv06xx_config,
 512        .init = stv06xx_init,
 513        .start = stv06xx_start,
 514        .stopN = stv06xx_stopN,
 515        .pkt_scan = stv06xx_pkt_scan,
 516        .isoc_init = stv06xx_isoc_init,
 517        .isoc_nego = stv06xx_isoc_nego,
 518#if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
 519        .int_pkt_scan = sd_int_pkt_scan,
 520#endif
 521};
 522
 523/* This function is called at probe time */
 524static int stv06xx_config(struct gspca_dev *gspca_dev,
 525                          const struct usb_device_id *id)
 526{
 527        struct sd *sd = (struct sd *) gspca_dev;
 528        struct cam *cam;
 529
 530        PDEBUG(D_PROBE, "Configuring camera");
 531
 532        cam = &gspca_dev->cam;
 533        sd->desc = sd_desc;
 534        sd->bridge = id->driver_info;
 535        gspca_dev->sd_desc = &sd->desc;
 536
 537        if (dump_bridge)
 538                stv06xx_dump_bridge(sd);
 539
 540        sd->sensor = &stv06xx_sensor_st6422;
 541        if (!sd->sensor->probe(sd))
 542                return 0;
 543
 544        sd->sensor = &stv06xx_sensor_vv6410;
 545        if (!sd->sensor->probe(sd))
 546                return 0;
 547
 548        sd->sensor = &stv06xx_sensor_hdcs1x00;
 549        if (!sd->sensor->probe(sd))
 550                return 0;
 551
 552        sd->sensor = &stv06xx_sensor_hdcs1020;
 553        if (!sd->sensor->probe(sd))
 554                return 0;
 555
 556        sd->sensor = &stv06xx_sensor_pb0100;
 557        if (!sd->sensor->probe(sd))
 558                return 0;
 559
 560        sd->sensor = NULL;
 561        return -ENODEV;
 562}
 563
 564
 565
 566/* -- module initialisation -- */
 567static const struct usb_device_id device_table[] = {
 568        /* QuickCam Express */
 569        {USB_DEVICE(0x046d, 0x0840), .driver_info = BRIDGE_STV600 },
 570        /* LEGO cam / QuickCam Web */
 571        {USB_DEVICE(0x046d, 0x0850), .driver_info = BRIDGE_STV610 },
 572        /* Dexxa WebCam USB */
 573        {USB_DEVICE(0x046d, 0x0870), .driver_info = BRIDGE_STV602 },
 574        /* QuickCam Messenger */
 575        {USB_DEVICE(0x046D, 0x08F0), .driver_info = BRIDGE_ST6422 },
 576        /* QuickCam Communicate */
 577        {USB_DEVICE(0x046D, 0x08F5), .driver_info = BRIDGE_ST6422 },
 578        /* QuickCam Messenger (new) */
 579        {USB_DEVICE(0x046D, 0x08F6), .driver_info = BRIDGE_ST6422 },
 580        {}
 581};
 582MODULE_DEVICE_TABLE(usb, device_table);
 583
 584/* -- device connect -- */
 585static int sd_probe(struct usb_interface *intf,
 586                        const struct usb_device_id *id)
 587{
 588        PDEBUG(D_PROBE, "Probing for a stv06xx device");
 589        return gspca_dev_probe(intf, id, &sd_desc, sizeof(struct sd),
 590                               THIS_MODULE);
 591}
 592
 593static void sd_disconnect(struct usb_interface *intf)
 594{
 595        struct gspca_dev *gspca_dev = usb_get_intfdata(intf);
 596        struct sd *sd = (struct sd *) gspca_dev;
 597        PDEBUG(D_PROBE, "Disconnecting the stv06xx device");
 598
 599        if (sd->sensor->disconnect)
 600                sd->sensor->disconnect(sd);
 601        gspca_disconnect(intf);
 602}
 603
 604static struct usb_driver sd_driver = {
 605        .name = MODULE_NAME,
 606        .id_table = device_table,
 607        .probe = sd_probe,
 608        .disconnect = sd_disconnect,
 609#ifdef CONFIG_PM
 610        .suspend = gspca_suspend,
 611        .resume = gspca_resume,
 612#endif
 613};
 614
 615/* -- module insert / remove -- */
 616static int __init sd_mod_init(void)
 617{
 618        return usb_register(&sd_driver);
 619}
 620static void __exit sd_mod_exit(void)
 621{
 622        usb_deregister(&sd_driver);
 623}
 624
 625module_init(sd_mod_init);
 626module_exit(sd_mod_exit);
 627
 628module_param(dump_bridge, bool, S_IRUGO | S_IWUSR);
 629MODULE_PARM_DESC(dump_bridge, "Dumps all usb bridge registers at startup");
 630
 631module_param(dump_sensor, bool, S_IRUGO | S_IWUSR);
 632MODULE_PARM_DESC(dump_sensor, "Dumps all sensor registers at startup");
 633