linux/drivers/hid/hid-core.c
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   1/*
   2 *  HID support for Linux
   3 *
   4 *  Copyright (c) 1999 Andreas Gal
   5 *  Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
   6 *  Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
   7 *  Copyright (c) 2006-2010 Jiri Kosina
   8 */
   9
  10/*
  11 * This program is free software; you can redistribute it and/or modify it
  12 * under the terms of the GNU General Public License as published by the Free
  13 * Software Foundation; either version 2 of the License, or (at your option)
  14 * any later version.
  15 */
  16
  17#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
  18
  19#include <linux/module.h>
  20#include <linux/slab.h>
  21#include <linux/init.h>
  22#include <linux/kernel.h>
  23#include <linux/list.h>
  24#include <linux/mm.h>
  25#include <linux/spinlock.h>
  26#include <asm/unaligned.h>
  27#include <asm/byteorder.h>
  28#include <linux/input.h>
  29#include <linux/wait.h>
  30#include <linux/vmalloc.h>
  31#include <linux/sched.h>
  32#include <linux/semaphore.h>
  33
  34#include <linux/hid.h>
  35#include <linux/hiddev.h>
  36#include <linux/hid-debug.h>
  37#include <linux/hidraw.h>
  38
  39#include "hid-ids.h"
  40
  41/*
  42 * Version Information
  43 */
  44
  45#define DRIVER_DESC "HID core driver"
  46#define DRIVER_LICENSE "GPL"
  47
  48int hid_debug = 0;
  49module_param_named(debug, hid_debug, int, 0600);
  50MODULE_PARM_DESC(debug, "toggle HID debugging messages");
  51EXPORT_SYMBOL_GPL(hid_debug);
  52
  53/*
  54 * Register a new report for a device.
  55 */
  56
  57struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
  58{
  59        struct hid_report_enum *report_enum = device->report_enum + type;
  60        struct hid_report *report;
  61
  62        if (report_enum->report_id_hash[id])
  63                return report_enum->report_id_hash[id];
  64
  65        report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
  66        if (!report)
  67                return NULL;
  68
  69        if (id != 0)
  70                report_enum->numbered = 1;
  71
  72        report->id = id;
  73        report->type = type;
  74        report->size = 0;
  75        report->device = device;
  76        report_enum->report_id_hash[id] = report;
  77
  78        list_add_tail(&report->list, &report_enum->report_list);
  79
  80        return report;
  81}
  82EXPORT_SYMBOL_GPL(hid_register_report);
  83
  84/*
  85 * Register a new field for this report.
  86 */
  87
  88static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  89{
  90        struct hid_field *field;
  91
  92        if (report->maxfield == HID_MAX_FIELDS) {
  93                hid_err(report->device, "too many fields in report\n");
  94                return NULL;
  95        }
  96
  97        field = kzalloc((sizeof(struct hid_field) +
  98                         usages * sizeof(struct hid_usage) +
  99                         values * sizeof(unsigned)), GFP_KERNEL);
 100        if (!field)
 101                return NULL;
 102
 103        field->index = report->maxfield++;
 104        report->field[field->index] = field;
 105        field->usage = (struct hid_usage *)(field + 1);
 106        field->value = (s32 *)(field->usage + usages);
 107        field->report = report;
 108
 109        return field;
 110}
 111
 112/*
 113 * Open a collection. The type/usage is pushed on the stack.
 114 */
 115
 116static int open_collection(struct hid_parser *parser, unsigned type)
 117{
 118        struct hid_collection *collection;
 119        unsigned usage;
 120
 121        usage = parser->local.usage[0];
 122
 123        if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 124                hid_err(parser->device, "collection stack overflow\n");
 125                return -1;
 126        }
 127
 128        if (parser->device->maxcollection == parser->device->collection_size) {
 129                collection = kmalloc(sizeof(struct hid_collection) *
 130                                parser->device->collection_size * 2, GFP_KERNEL);
 131                if (collection == NULL) {
 132                        hid_err(parser->device, "failed to reallocate collection array\n");
 133                        return -1;
 134                }
 135                memcpy(collection, parser->device->collection,
 136                        sizeof(struct hid_collection) *
 137                        parser->device->collection_size);
 138                memset(collection + parser->device->collection_size, 0,
 139                        sizeof(struct hid_collection) *
 140                        parser->device->collection_size);
 141                kfree(parser->device->collection);
 142                parser->device->collection = collection;
 143                parser->device->collection_size *= 2;
 144        }
 145
 146        parser->collection_stack[parser->collection_stack_ptr++] =
 147                parser->device->maxcollection;
 148
 149        collection = parser->device->collection +
 150                parser->device->maxcollection++;
 151        collection->type = type;
 152        collection->usage = usage;
 153        collection->level = parser->collection_stack_ptr - 1;
 154
 155        if (type == HID_COLLECTION_APPLICATION)
 156                parser->device->maxapplication++;
 157
 158        return 0;
 159}
 160
 161/*
 162 * Close a collection.
 163 */
 164
 165static int close_collection(struct hid_parser *parser)
 166{
 167        if (!parser->collection_stack_ptr) {
 168                hid_err(parser->device, "collection stack underflow\n");
 169                return -1;
 170        }
 171        parser->collection_stack_ptr--;
 172        return 0;
 173}
 174
 175/*
 176 * Climb up the stack, search for the specified collection type
 177 * and return the usage.
 178 */
 179
 180static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 181{
 182        struct hid_collection *collection = parser->device->collection;
 183        int n;
 184
 185        for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
 186                unsigned index = parser->collection_stack[n];
 187                if (collection[index].type == type)
 188                        return collection[index].usage;
 189        }
 190        return 0; /* we know nothing about this usage type */
 191}
 192
 193/*
 194 * Add a usage to the temporary parser table.
 195 */
 196
 197static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 198{
 199        if (parser->local.usage_index >= HID_MAX_USAGES) {
 200                hid_err(parser->device, "usage index exceeded\n");
 201                return -1;
 202        }
 203        parser->local.usage[parser->local.usage_index] = usage;
 204        parser->local.collection_index[parser->local.usage_index] =
 205                parser->collection_stack_ptr ?
 206                parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 207        parser->local.usage_index++;
 208        return 0;
 209}
 210
 211/*
 212 * Register a new field for this report.
 213 */
 214
 215static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 216{
 217        struct hid_report *report;
 218        struct hid_field *field;
 219        int usages;
 220        unsigned offset;
 221        int i;
 222
 223        report = hid_register_report(parser->device, report_type, parser->global.report_id);
 224        if (!report) {
 225                hid_err(parser->device, "hid_register_report failed\n");
 226                return -1;
 227        }
 228
 229        if (parser->global.logical_maximum < parser->global.logical_minimum) {
 230                hid_err(parser->device, "logical range invalid %d %d\n",
 231                                parser->global.logical_minimum, parser->global.logical_maximum);
 232                return -1;
 233        }
 234
 235        offset = report->size;
 236        report->size += parser->global.report_size * parser->global.report_count;
 237
 238        if (!parser->local.usage_index) /* Ignore padding fields */
 239                return 0;
 240
 241        usages = max_t(int, parser->local.usage_index, parser->global.report_count);
 242
 243        field = hid_register_field(report, usages, parser->global.report_count);
 244        if (!field)
 245                return 0;
 246
 247        field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 248        field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 249        field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 250
 251        for (i = 0; i < usages; i++) {
 252                int j = i;
 253                /* Duplicate the last usage we parsed if we have excess values */
 254                if (i >= parser->local.usage_index)
 255                        j = parser->local.usage_index - 1;
 256                field->usage[i].hid = parser->local.usage[j];
 257                field->usage[i].collection_index =
 258                        parser->local.collection_index[j];
 259        }
 260
 261        field->maxusage = usages;
 262        field->flags = flags;
 263        field->report_offset = offset;
 264        field->report_type = report_type;
 265        field->report_size = parser->global.report_size;
 266        field->report_count = parser->global.report_count;
 267        field->logical_minimum = parser->global.logical_minimum;
 268        field->logical_maximum = parser->global.logical_maximum;
 269        field->physical_minimum = parser->global.physical_minimum;
 270        field->physical_maximum = parser->global.physical_maximum;
 271        field->unit_exponent = parser->global.unit_exponent;
 272        field->unit = parser->global.unit;
 273
 274        return 0;
 275}
 276
 277/*
 278 * Read data value from item.
 279 */
 280
 281static u32 item_udata(struct hid_item *item)
 282{
 283        switch (item->size) {
 284        case 1: return item->data.u8;
 285        case 2: return item->data.u16;
 286        case 4: return item->data.u32;
 287        }
 288        return 0;
 289}
 290
 291static s32 item_sdata(struct hid_item *item)
 292{
 293        switch (item->size) {
 294        case 1: return item->data.s8;
 295        case 2: return item->data.s16;
 296        case 4: return item->data.s32;
 297        }
 298        return 0;
 299}
 300
 301/*
 302 * Process a global item.
 303 */
 304
 305static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 306{
 307        switch (item->tag) {
 308        case HID_GLOBAL_ITEM_TAG_PUSH:
 309
 310                if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 311                        hid_err(parser->device, "global environment stack overflow\n");
 312                        return -1;
 313                }
 314
 315                memcpy(parser->global_stack + parser->global_stack_ptr++,
 316                        &parser->global, sizeof(struct hid_global));
 317                return 0;
 318
 319        case HID_GLOBAL_ITEM_TAG_POP:
 320
 321                if (!parser->global_stack_ptr) {
 322                        hid_err(parser->device, "global environment stack underflow\n");
 323                        return -1;
 324                }
 325
 326                memcpy(&parser->global, parser->global_stack +
 327                        --parser->global_stack_ptr, sizeof(struct hid_global));
 328                return 0;
 329
 330        case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 331                parser->global.usage_page = item_udata(item);
 332                return 0;
 333
 334        case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 335                parser->global.logical_minimum = item_sdata(item);
 336                return 0;
 337
 338        case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 339                if (parser->global.logical_minimum < 0)
 340                        parser->global.logical_maximum = item_sdata(item);
 341                else
 342                        parser->global.logical_maximum = item_udata(item);
 343                return 0;
 344
 345        case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 346                parser->global.physical_minimum = item_sdata(item);
 347                return 0;
 348
 349        case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 350                if (parser->global.physical_minimum < 0)
 351                        parser->global.physical_maximum = item_sdata(item);
 352                else
 353                        parser->global.physical_maximum = item_udata(item);
 354                return 0;
 355
 356        case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 357                parser->global.unit_exponent = item_sdata(item);
 358                return 0;
 359
 360        case HID_GLOBAL_ITEM_TAG_UNIT:
 361                parser->global.unit = item_udata(item);
 362                return 0;
 363
 364        case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 365                parser->global.report_size = item_udata(item);
 366                if (parser->global.report_size > 96) {
 367                        hid_err(parser->device, "invalid report_size %d\n",
 368                                        parser->global.report_size);
 369                        return -1;
 370                }
 371                return 0;
 372
 373        case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 374                parser->global.report_count = item_udata(item);
 375                if (parser->global.report_count > HID_MAX_USAGES) {
 376                        hid_err(parser->device, "invalid report_count %d\n",
 377                                        parser->global.report_count);
 378                        return -1;
 379                }
 380                return 0;
 381
 382        case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 383                parser->global.report_id = item_udata(item);
 384                if (parser->global.report_id == 0) {
 385                        hid_err(parser->device, "report_id 0 is invalid\n");
 386                        return -1;
 387                }
 388                return 0;
 389
 390        default:
 391                hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
 392                return -1;
 393        }
 394}
 395
 396/*
 397 * Process a local item.
 398 */
 399
 400static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 401{
 402        __u32 data;
 403        unsigned n;
 404
 405        data = item_udata(item);
 406
 407        switch (item->tag) {
 408        case HID_LOCAL_ITEM_TAG_DELIMITER:
 409
 410                if (data) {
 411                        /*
 412                         * We treat items before the first delimiter
 413                         * as global to all usage sets (branch 0).
 414                         * In the moment we process only these global
 415                         * items and the first delimiter set.
 416                         */
 417                        if (parser->local.delimiter_depth != 0) {
 418                                hid_err(parser->device, "nested delimiters\n");
 419                                return -1;
 420                        }
 421                        parser->local.delimiter_depth++;
 422                        parser->local.delimiter_branch++;
 423                } else {
 424                        if (parser->local.delimiter_depth < 1) {
 425                                hid_err(parser->device, "bogus close delimiter\n");
 426                                return -1;
 427                        }
 428                        parser->local.delimiter_depth--;
 429                }
 430                return 1;
 431
 432        case HID_LOCAL_ITEM_TAG_USAGE:
 433
 434                if (parser->local.delimiter_branch > 1) {
 435                        dbg_hid("alternative usage ignored\n");
 436                        return 0;
 437                }
 438
 439                if (item->size <= 2)
 440                        data = (parser->global.usage_page << 16) + data;
 441
 442                return hid_add_usage(parser, data);
 443
 444        case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 445
 446                if (parser->local.delimiter_branch > 1) {
 447                        dbg_hid("alternative usage ignored\n");
 448                        return 0;
 449                }
 450
 451                if (item->size <= 2)
 452                        data = (parser->global.usage_page << 16) + data;
 453
 454                parser->local.usage_minimum = data;
 455                return 0;
 456
 457        case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 458
 459                if (parser->local.delimiter_branch > 1) {
 460                        dbg_hid("alternative usage ignored\n");
 461                        return 0;
 462                }
 463
 464                if (item->size <= 2)
 465                        data = (parser->global.usage_page << 16) + data;
 466
 467                for (n = parser->local.usage_minimum; n <= data; n++)
 468                        if (hid_add_usage(parser, n)) {
 469                                dbg_hid("hid_add_usage failed\n");
 470                                return -1;
 471                        }
 472                return 0;
 473
 474        default:
 475
 476                dbg_hid("unknown local item tag 0x%x\n", item->tag);
 477                return 0;
 478        }
 479        return 0;
 480}
 481
 482/*
 483 * Process a main item.
 484 */
 485
 486static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 487{
 488        __u32 data;
 489        int ret;
 490
 491        data = item_udata(item);
 492
 493        switch (item->tag) {
 494        case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 495                ret = open_collection(parser, data & 0xff);
 496                break;
 497        case HID_MAIN_ITEM_TAG_END_COLLECTION:
 498                ret = close_collection(parser);
 499                break;
 500        case HID_MAIN_ITEM_TAG_INPUT:
 501                ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 502                break;
 503        case HID_MAIN_ITEM_TAG_OUTPUT:
 504                ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 505                break;
 506        case HID_MAIN_ITEM_TAG_FEATURE:
 507                ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 508                break;
 509        default:
 510                hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
 511                ret = 0;
 512        }
 513
 514        memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 515
 516        return ret;
 517}
 518
 519/*
 520 * Process a reserved item.
 521 */
 522
 523static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 524{
 525        dbg_hid("reserved item type, tag 0x%x\n", item->tag);
 526        return 0;
 527}
 528
 529/*
 530 * Free a report and all registered fields. The field->usage and
 531 * field->value table's are allocated behind the field, so we need
 532 * only to free(field) itself.
 533 */
 534
 535static void hid_free_report(struct hid_report *report)
 536{
 537        unsigned n;
 538
 539        for (n = 0; n < report->maxfield; n++)
 540                kfree(report->field[n]);
 541        kfree(report);
 542}
 543
 544/*
 545 * Free a device structure, all reports, and all fields.
 546 */
 547
 548static void hid_device_release(struct device *dev)
 549{
 550        struct hid_device *device = container_of(dev, struct hid_device, dev);
 551        unsigned i, j;
 552
 553        for (i = 0; i < HID_REPORT_TYPES; i++) {
 554                struct hid_report_enum *report_enum = device->report_enum + i;
 555
 556                for (j = 0; j < 256; j++) {
 557                        struct hid_report *report = report_enum->report_id_hash[j];
 558                        if (report)
 559                                hid_free_report(report);
 560                }
 561        }
 562
 563        kfree(device->rdesc);
 564        kfree(device->collection);
 565        kfree(device);
 566}
 567
 568/*
 569 * Fetch a report description item from the data stream. We support long
 570 * items, though they are not used yet.
 571 */
 572
 573static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 574{
 575        u8 b;
 576
 577        if ((end - start) <= 0)
 578                return NULL;
 579
 580        b = *start++;
 581
 582        item->type = (b >> 2) & 3;
 583        item->tag  = (b >> 4) & 15;
 584
 585        if (item->tag == HID_ITEM_TAG_LONG) {
 586
 587                item->format = HID_ITEM_FORMAT_LONG;
 588
 589                if ((end - start) < 2)
 590                        return NULL;
 591
 592                item->size = *start++;
 593                item->tag  = *start++;
 594
 595                if ((end - start) < item->size)
 596                        return NULL;
 597
 598                item->data.longdata = start;
 599                start += item->size;
 600                return start;
 601        }
 602
 603        item->format = HID_ITEM_FORMAT_SHORT;
 604        item->size = b & 3;
 605
 606        switch (item->size) {
 607        case 0:
 608                return start;
 609
 610        case 1:
 611                if ((end - start) < 1)
 612                        return NULL;
 613                item->data.u8 = *start++;
 614                return start;
 615
 616        case 2:
 617                if ((end - start) < 2)
 618                        return NULL;
 619                item->data.u16 = get_unaligned_le16(start);
 620                start = (__u8 *)((__le16 *)start + 1);
 621                return start;
 622
 623        case 3:
 624                item->size++;
 625                if ((end - start) < 4)
 626                        return NULL;
 627                item->data.u32 = get_unaligned_le32(start);
 628                start = (__u8 *)((__le32 *)start + 1);
 629                return start;
 630        }
 631
 632        return NULL;
 633}
 634
 635/**
 636 * hid_parse_report - parse device report
 637 *
 638 * @device: hid device
 639 * @start: report start
 640 * @size: report size
 641 *
 642 * Parse a report description into a hid_device structure. Reports are
 643 * enumerated, fields are attached to these reports.
 644 * 0 returned on success, otherwise nonzero error value.
 645 */
 646int hid_parse_report(struct hid_device *device, __u8 *start,
 647                unsigned size)
 648{
 649        struct hid_parser *parser;
 650        struct hid_item item;
 651        __u8 *end;
 652        int ret;
 653        static int (*dispatch_type[])(struct hid_parser *parser,
 654                                      struct hid_item *item) = {
 655                hid_parser_main,
 656                hid_parser_global,
 657                hid_parser_local,
 658                hid_parser_reserved
 659        };
 660
 661        if (device->driver->report_fixup)
 662                start = device->driver->report_fixup(device, start, &size);
 663
 664        device->rdesc = kmemdup(start, size, GFP_KERNEL);
 665        if (device->rdesc == NULL)
 666                return -ENOMEM;
 667        device->rsize = size;
 668
 669        parser = vzalloc(sizeof(struct hid_parser));
 670        if (!parser) {
 671                ret = -ENOMEM;
 672                goto err;
 673        }
 674
 675        parser->device = device;
 676
 677        end = start + size;
 678        ret = -EINVAL;
 679        while ((start = fetch_item(start, end, &item)) != NULL) {
 680
 681                if (item.format != HID_ITEM_FORMAT_SHORT) {
 682                        hid_err(device, "unexpected long global item\n");
 683                        goto err;
 684                }
 685
 686                if (dispatch_type[item.type](parser, &item)) {
 687                        hid_err(device, "item %u %u %u %u parsing failed\n",
 688                                item.format, (unsigned)item.size,
 689                                (unsigned)item.type, (unsigned)item.tag);
 690                        goto err;
 691                }
 692
 693                if (start == end) {
 694                        if (parser->collection_stack_ptr) {
 695                                hid_err(device, "unbalanced collection at end of report description\n");
 696                                goto err;
 697                        }
 698                        if (parser->local.delimiter_depth) {
 699                                hid_err(device, "unbalanced delimiter at end of report description\n");
 700                                goto err;
 701                        }
 702                        vfree(parser);
 703                        return 0;
 704                }
 705        }
 706
 707        hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
 708err:
 709        vfree(parser);
 710        return ret;
 711}
 712EXPORT_SYMBOL_GPL(hid_parse_report);
 713
 714/*
 715 * Convert a signed n-bit integer to signed 32-bit integer. Common
 716 * cases are done through the compiler, the screwed things has to be
 717 * done by hand.
 718 */
 719
 720static s32 snto32(__u32 value, unsigned n)
 721{
 722        switch (n) {
 723        case 8:  return ((__s8)value);
 724        case 16: return ((__s16)value);
 725        case 32: return ((__s32)value);
 726        }
 727        return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 728}
 729
 730/*
 731 * Convert a signed 32-bit integer to a signed n-bit integer.
 732 */
 733
 734static u32 s32ton(__s32 value, unsigned n)
 735{
 736        s32 a = value >> (n - 1);
 737        if (a && a != -1)
 738                return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
 739        return value & ((1 << n) - 1);
 740}
 741
 742/*
 743 * Extract/implement a data field from/to a little endian report (bit array).
 744 *
 745 * Code sort-of follows HID spec:
 746 *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 747 *
 748 * While the USB HID spec allows unlimited length bit fields in "report
 749 * descriptors", most devices never use more than 16 bits.
 750 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 751 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 752 */
 753
 754static __u32 extract(const struct hid_device *hid, __u8 *report,
 755                     unsigned offset, unsigned n)
 756{
 757        u64 x;
 758
 759        if (n > 32)
 760                hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
 761                         n, current->comm);
 762
 763        report += offset >> 3;  /* adjust byte index */
 764        offset &= 7;            /* now only need bit offset into one byte */
 765        x = get_unaligned_le64(report);
 766        x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
 767        return (u32) x;
 768}
 769
 770/*
 771 * "implement" : set bits in a little endian bit stream.
 772 * Same concepts as "extract" (see comments above).
 773 * The data mangled in the bit stream remains in little endian
 774 * order the whole time. It make more sense to talk about
 775 * endianness of register values by considering a register
 776 * a "cached" copy of the little endiad bit stream.
 777 */
 778static void implement(const struct hid_device *hid, __u8 *report,
 779                      unsigned offset, unsigned n, __u32 value)
 780{
 781        u64 x;
 782        u64 m = (1ULL << n) - 1;
 783
 784        if (n > 32)
 785                hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
 786                         __func__, n, current->comm);
 787
 788        if (value > m)
 789                hid_warn(hid, "%s() called with too large value %d! (%s)\n",
 790                         __func__, value, current->comm);
 791        WARN_ON(value > m);
 792        value &= m;
 793
 794        report += offset >> 3;
 795        offset &= 7;
 796
 797        x = get_unaligned_le64(report);
 798        x &= ~(m << offset);
 799        x |= ((u64)value) << offset;
 800        put_unaligned_le64(x, report);
 801}
 802
 803/*
 804 * Search an array for a value.
 805 */
 806
 807static int search(__s32 *array, __s32 value, unsigned n)
 808{
 809        while (n--) {
 810                if (*array++ == value)
 811                        return 0;
 812        }
 813        return -1;
 814}
 815
 816/**
 817 * hid_match_report - check if driver's raw_event should be called
 818 *
 819 * @hid: hid device
 820 * @report_type: type to match against
 821 *
 822 * compare hid->driver->report_table->report_type to report->type
 823 */
 824static int hid_match_report(struct hid_device *hid, struct hid_report *report)
 825{
 826        const struct hid_report_id *id = hid->driver->report_table;
 827
 828        if (!id) /* NULL means all */
 829                return 1;
 830
 831        for (; id->report_type != HID_TERMINATOR; id++)
 832                if (id->report_type == HID_ANY_ID ||
 833                                id->report_type == report->type)
 834                        return 1;
 835        return 0;
 836}
 837
 838/**
 839 * hid_match_usage - check if driver's event should be called
 840 *
 841 * @hid: hid device
 842 * @usage: usage to match against
 843 *
 844 * compare hid->driver->usage_table->usage_{type,code} to
 845 * usage->usage_{type,code}
 846 */
 847static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
 848{
 849        const struct hid_usage_id *id = hid->driver->usage_table;
 850
 851        if (!id) /* NULL means all */
 852                return 1;
 853
 854        for (; id->usage_type != HID_ANY_ID - 1; id++)
 855                if ((id->usage_hid == HID_ANY_ID ||
 856                                id->usage_hid == usage->hid) &&
 857                                (id->usage_type == HID_ANY_ID ||
 858                                id->usage_type == usage->type) &&
 859                                (id->usage_code == HID_ANY_ID ||
 860                                 id->usage_code == usage->code))
 861                        return 1;
 862        return 0;
 863}
 864
 865static void hid_process_event(struct hid_device *hid, struct hid_field *field,
 866                struct hid_usage *usage, __s32 value, int interrupt)
 867{
 868        struct hid_driver *hdrv = hid->driver;
 869        int ret;
 870
 871        hid_dump_input(hid, usage, value);
 872
 873        if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
 874                ret = hdrv->event(hid, field, usage, value);
 875                if (ret != 0) {
 876                        if (ret < 0)
 877                                hid_err(hid, "%s's event failed with %d\n",
 878                                                hdrv->name, ret);
 879                        return;
 880                }
 881        }
 882
 883        if (hid->claimed & HID_CLAIMED_INPUT)
 884                hidinput_hid_event(hid, field, usage, value);
 885        if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
 886                hid->hiddev_hid_event(hid, field, usage, value);
 887}
 888
 889/*
 890 * Analyse a received field, and fetch the data from it. The field
 891 * content is stored for next report processing (we do differential
 892 * reporting to the layer).
 893 */
 894
 895static void hid_input_field(struct hid_device *hid, struct hid_field *field,
 896                            __u8 *data, int interrupt)
 897{
 898        unsigned n;
 899        unsigned count = field->report_count;
 900        unsigned offset = field->report_offset;
 901        unsigned size = field->report_size;
 902        __s32 min = field->logical_minimum;
 903        __s32 max = field->logical_maximum;
 904        __s32 *value;
 905
 906        value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
 907        if (!value)
 908                return;
 909
 910        for (n = 0; n < count; n++) {
 911
 912                value[n] = min < 0 ?
 913                        snto32(extract(hid, data, offset + n * size, size),
 914                               size) :
 915                        extract(hid, data, offset + n * size, size);
 916
 917                /* Ignore report if ErrorRollOver */
 918                if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
 919                    value[n] >= min && value[n] <= max &&
 920                    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
 921                        goto exit;
 922        }
 923
 924        for (n = 0; n < count; n++) {
 925
 926                if (HID_MAIN_ITEM_VARIABLE & field->flags) {
 927                        hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
 928                        continue;
 929                }
 930
 931                if (field->value[n] >= min && field->value[n] <= max
 932                        && field->usage[field->value[n] - min].hid
 933                        && search(value, field->value[n], count))
 934                                hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
 935
 936                if (value[n] >= min && value[n] <= max
 937                        && field->usage[value[n] - min].hid
 938                        && search(field->value, value[n], count))
 939                                hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
 940        }
 941
 942        memcpy(field->value, value, count * sizeof(__s32));
 943exit:
 944        kfree(value);
 945}
 946
 947/*
 948 * Output the field into the report.
 949 */
 950
 951static void hid_output_field(const struct hid_device *hid,
 952                             struct hid_field *field, __u8 *data)
 953{
 954        unsigned count = field->report_count;
 955        unsigned offset = field->report_offset;
 956        unsigned size = field->report_size;
 957        unsigned n;
 958
 959        for (n = 0; n < count; n++) {
 960                if (field->logical_minimum < 0) /* signed values */
 961                        implement(hid, data, offset + n * size, size,
 962                                  s32ton(field->value[n], size));
 963                else                            /* unsigned values */
 964                        implement(hid, data, offset + n * size, size,
 965                                  field->value[n]);
 966        }
 967}
 968
 969/*
 970 * Create a report.
 971 */
 972
 973void hid_output_report(struct hid_report *report, __u8 *data)
 974{
 975        unsigned n;
 976
 977        if (report->id > 0)
 978                *data++ = report->id;
 979
 980        memset(data, 0, ((report->size - 1) >> 3) + 1);
 981        for (n = 0; n < report->maxfield; n++)
 982                hid_output_field(report->device, report->field[n], data);
 983}
 984EXPORT_SYMBOL_GPL(hid_output_report);
 985
 986/*
 987 * Set a field value. The report this field belongs to has to be
 988 * created and transferred to the device, to set this value in the
 989 * device.
 990 */
 991
 992int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
 993{
 994        unsigned size = field->report_size;
 995
 996        hid_dump_input(field->report->device, field->usage + offset, value);
 997
 998        if (offset >= field->report_count) {
 999                hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1000                                offset, field->report_count);
1001                return -1;
1002        }
1003        if (field->logical_minimum < 0) {
1004                if (value != snto32(s32ton(value, size), size)) {
1005                        hid_err(field->report->device, "value %d is out of range\n", value);
1006                        return -1;
1007                }
1008        }
1009        field->value[offset] = value;
1010        return 0;
1011}
1012EXPORT_SYMBOL_GPL(hid_set_field);
1013
1014static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1015                const u8 *data)
1016{
1017        struct hid_report *report;
1018        unsigned int n = 0;     /* Normally report number is 0 */
1019
1020        /* Device uses numbered reports, data[0] is report number */
1021        if (report_enum->numbered)
1022                n = *data;
1023
1024        report = report_enum->report_id_hash[n];
1025        if (report == NULL)
1026                dbg_hid("undefined report_id %u received\n", n);
1027
1028        return report;
1029}
1030
1031void hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1032                int interrupt)
1033{
1034        struct hid_report_enum *report_enum = hid->report_enum + type;
1035        struct hid_report *report;
1036        unsigned int a;
1037        int rsize, csize = size;
1038        u8 *cdata = data;
1039
1040        report = hid_get_report(report_enum, data);
1041        if (!report)
1042                return;
1043
1044        if (report_enum->numbered) {
1045                cdata++;
1046                csize--;
1047        }
1048
1049        rsize = ((report->size - 1) >> 3) + 1;
1050
1051        if (rsize > HID_MAX_BUFFER_SIZE)
1052                rsize = HID_MAX_BUFFER_SIZE;
1053
1054        if (csize < rsize) {
1055                dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1056                                csize, rsize);
1057                memset(cdata + csize, 0, rsize - csize);
1058        }
1059
1060        if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1061                hid->hiddev_report_event(hid, report);
1062        if (hid->claimed & HID_CLAIMED_HIDRAW)
1063                hidraw_report_event(hid, data, size);
1064
1065        for (a = 0; a < report->maxfield; a++)
1066                hid_input_field(hid, report->field[a], cdata, interrupt);
1067
1068        if (hid->claimed & HID_CLAIMED_INPUT)
1069                hidinput_report_event(hid, report);
1070}
1071EXPORT_SYMBOL_GPL(hid_report_raw_event);
1072
1073/**
1074 * hid_input_report - report data from lower layer (usb, bt...)
1075 *
1076 * @hid: hid device
1077 * @type: HID report type (HID_*_REPORT)
1078 * @data: report contents
1079 * @size: size of data parameter
1080 * @interrupt: distinguish between interrupt and control transfers
1081 *
1082 * This is data entry for lower layers.
1083 */
1084int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1085{
1086        struct hid_report_enum *report_enum;
1087        struct hid_driver *hdrv;
1088        struct hid_report *report;
1089        char *buf;
1090        unsigned int i;
1091        int ret = 0;
1092
1093        if (!hid)
1094                return -ENODEV;
1095
1096        if (down_trylock(&hid->driver_lock))
1097                return -EBUSY;
1098
1099        if (!hid->driver) {
1100                ret = -ENODEV;
1101                goto unlock;
1102        }
1103        report_enum = hid->report_enum + type;
1104        hdrv = hid->driver;
1105
1106        if (!size) {
1107                dbg_hid("empty report\n");
1108                ret = -1;
1109                goto unlock;
1110        }
1111
1112        buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1113
1114        if (!buf)
1115                goto nomem;
1116
1117        /* dump the report */
1118        snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1119                        "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1120        hid_debug_event(hid, buf);
1121
1122        for (i = 0; i < size; i++) {
1123                snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1124                                " %02x", data[i]);
1125                hid_debug_event(hid, buf);
1126        }
1127        hid_debug_event(hid, "\n");
1128        kfree(buf);
1129
1130nomem:
1131        report = hid_get_report(report_enum, data);
1132
1133        if (!report) {
1134                ret = -1;
1135                goto unlock;
1136        }
1137
1138        if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1139                ret = hdrv->raw_event(hid, report, data, size);
1140                if (ret != 0) {
1141                        ret = ret < 0 ? ret : 0;
1142                        goto unlock;
1143                }
1144        }
1145
1146        hid_report_raw_event(hid, type, data, size, interrupt);
1147
1148unlock:
1149        up(&hid->driver_lock);
1150        return ret;
1151}
1152EXPORT_SYMBOL_GPL(hid_input_report);
1153
1154static bool hid_match_one_id(struct hid_device *hdev,
1155                const struct hid_device_id *id)
1156{
1157        return id->bus == hdev->bus &&
1158                (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1159                (id->product == HID_ANY_ID || id->product == hdev->product);
1160}
1161
1162const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1163                const struct hid_device_id *id)
1164{
1165        for (; id->bus; id++)
1166                if (hid_match_one_id(hdev, id))
1167                        return id;
1168
1169        return NULL;
1170}
1171
1172static const struct hid_device_id hid_hiddev_list[] = {
1173        { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1174        { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1175        { }
1176};
1177
1178static bool hid_hiddev(struct hid_device *hdev)
1179{
1180        return !!hid_match_id(hdev, hid_hiddev_list);
1181}
1182
1183
1184static ssize_t
1185read_report_descriptor(struct file *filp, struct kobject *kobj,
1186                struct bin_attribute *attr,
1187                char *buf, loff_t off, size_t count)
1188{
1189        struct device *dev = container_of(kobj, struct device, kobj);
1190        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1191
1192        if (off >= hdev->rsize)
1193                return 0;
1194
1195        if (off + count > hdev->rsize)
1196                count = hdev->rsize - off;
1197
1198        memcpy(buf, hdev->rdesc + off, count);
1199
1200        return count;
1201}
1202
1203static struct bin_attribute dev_bin_attr_report_desc = {
1204        .attr = { .name = "report_descriptor", .mode = 0444 },
1205        .read = read_report_descriptor,
1206        .size = HID_MAX_DESCRIPTOR_SIZE,
1207};
1208
1209int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1210{
1211        static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1212                "Joystick", "Gamepad", "Keyboard", "Keypad",
1213                "Multi-Axis Controller"
1214        };
1215        const char *type, *bus;
1216        char buf[64];
1217        unsigned int i;
1218        int len;
1219        int ret;
1220
1221        if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1222                connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1223        if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1224                connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1225        if (hdev->bus != BUS_USB)
1226                connect_mask &= ~HID_CONNECT_HIDDEV;
1227        if (hid_hiddev(hdev))
1228                connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1229
1230        if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1231                                connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1232                hdev->claimed |= HID_CLAIMED_INPUT;
1233        if (hdev->quirks & HID_QUIRK_MULTITOUCH) {
1234                /* this device should be handled by hid-multitouch, skip it */
1235                hdev->quirks &= ~HID_QUIRK_MULTITOUCH;
1236                return -ENODEV;
1237        }
1238
1239        if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1240                        !hdev->hiddev_connect(hdev,
1241                                connect_mask & HID_CONNECT_HIDDEV_FORCE))
1242                hdev->claimed |= HID_CLAIMED_HIDDEV;
1243        if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1244                hdev->claimed |= HID_CLAIMED_HIDRAW;
1245
1246        if (!hdev->claimed) {
1247                hid_err(hdev, "claimed by neither input, hiddev nor hidraw\n");
1248                return -ENODEV;
1249        }
1250
1251        if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1252                        (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1253                hdev->ff_init(hdev);
1254
1255        len = 0;
1256        if (hdev->claimed & HID_CLAIMED_INPUT)
1257                len += sprintf(buf + len, "input");
1258        if (hdev->claimed & HID_CLAIMED_HIDDEV)
1259                len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1260                                hdev->minor);
1261        if (hdev->claimed & HID_CLAIMED_HIDRAW)
1262                len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1263                                ((struct hidraw *)hdev->hidraw)->minor);
1264
1265        type = "Device";
1266        for (i = 0; i < hdev->maxcollection; i++) {
1267                struct hid_collection *col = &hdev->collection[i];
1268                if (col->type == HID_COLLECTION_APPLICATION &&
1269                   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1270                   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1271                        type = types[col->usage & 0xffff];
1272                        break;
1273                }
1274        }
1275
1276        switch (hdev->bus) {
1277        case BUS_USB:
1278                bus = "USB";
1279                break;
1280        case BUS_BLUETOOTH:
1281                bus = "BLUETOOTH";
1282                break;
1283        default:
1284                bus = "<UNKNOWN>";
1285        }
1286
1287        ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1288        if (ret)
1289                hid_warn(hdev,
1290                         "can't create sysfs report descriptor attribute err: %d\n", ret);
1291
1292        hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1293                 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1294                 type, hdev->name, hdev->phys);
1295
1296        return 0;
1297}
1298EXPORT_SYMBOL_GPL(hid_connect);
1299
1300void hid_disconnect(struct hid_device *hdev)
1301{
1302        device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1303        if (hdev->claimed & HID_CLAIMED_INPUT)
1304                hidinput_disconnect(hdev);
1305        if (hdev->claimed & HID_CLAIMED_HIDDEV)
1306                hdev->hiddev_disconnect(hdev);
1307        if (hdev->claimed & HID_CLAIMED_HIDRAW)
1308                hidraw_disconnect(hdev);
1309}
1310EXPORT_SYMBOL_GPL(hid_disconnect);
1311
1312/* a list of devices for which there is a specialized driver on HID bus */
1313static const struct hid_device_id hid_have_special_driver[] = {
1314        { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
1315        { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M2256) },
1316        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1317        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1318        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1319        { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1320        { HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR, USB_DEVICE_ID_ACTIONSTAR_1011) },
1321        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1322        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1323        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1324        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1325        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1326        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1327        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1328        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1329        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1330        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1331        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1332        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1333        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1334        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1335        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1336        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1337        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1338        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1339        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1340        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1341        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1342        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1343        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1344        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1345        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1346        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1347        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1348        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1349        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1350        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1351        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1352        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1353        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1354        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1355        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1356        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1357        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1358        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1359        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1360        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1361        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1362        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1363        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1364        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1365        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1366        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1367        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1368        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1369        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1370        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1371        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1372        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1373        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1374        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1375        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1376        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1377        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1378        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1379        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1380        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1381        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1382        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1383        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1384        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1385        { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
1386        { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) },
1387        { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1388        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1389        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1390        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
1391        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH) },
1392        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1) },
1393        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6) },
1394        { HID_USB_DEVICE(USB_VENDOR_ID_CANDO, USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) },
1395        { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1396        { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1397        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1398        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1399        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1400        { HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) },
1401        { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1402        { HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, USB_DEVICE_ID_CVTOUCH_SCREEN) },
1403        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1404        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1405        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1406        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1407        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
1408        { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1409        { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1410        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
1411        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
1412        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
1413        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
1414        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
1415        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
1416        { HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
1417        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1418        { HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2515) },
1419        { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1420        { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1421        { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1422        { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1423        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) },
1424        { HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, USB_DEVICE_ID_GOODTOUCH_000f) },
1425        { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1426        { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1427        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1428        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1429        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1430        { HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
1431        { HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
1432        { HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM, USB_DEVICE_ID_IDEACOM_IDC6650) },
1433        { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1434        { HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, USB_DEVICE_ID_ILITEK_MULTITOUCH) },
1435        { HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, USB_DEVICE_ID_IRTOUCH_INFRARED_USB) },
1436        { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1437        { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1438        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1439        { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1440        { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1441        { HID_USB_DEVICE(USB_VENDOR_ID_LG, USB_DEVICE_ID_LG_MULTITOUCH) },
1442        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1443        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1444        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1445        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1446        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1447        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1448        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1449        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1450        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1451        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1452        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1453        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1454        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1455        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1456        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1457        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1458        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1459        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1460        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1461        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1462        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1463        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1464        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1465        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1466        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1467        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1468        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1469        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1470        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1471        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1472        { HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, USB_DEVICE_ID_CRYSTALTOUCH) },
1473        { HID_USB_DEVICE(USB_VENDOR_ID_LUMIO, USB_DEVICE_ID_CRYSTALTOUCH_DUAL) },
1474        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1475        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1476        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1477        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1478        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1479        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1480        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1481        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1482        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1483        { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1484        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1485        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1486        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1487        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1488        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1489        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1490        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1491        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1492        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1493        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1494        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1495        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1496        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1497        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1498        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1499        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1500        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1501        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1502        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1503        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1504        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1505        { HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_PCI) },
1506        { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1507        { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
1508        { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
1509        { HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
1510        { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1511        { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
1512        { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
1513        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1514        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1515        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1516        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1517        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1518        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1519        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1520        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1521        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1522        { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1523        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1524        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1525        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1526        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1527        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
1528        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_MTP_STM) },
1529        { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX, USB_DEVICE_ID_MTP_SITRONIX) },
1530        { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1531        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1532        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1533        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1534        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1535        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1536        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1537        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1538        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1539        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1540        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1541        { HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) },
1542        { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1543        { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) },
1544        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1545        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1546        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1547        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1548        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1549        { HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) },
1550        { HID_USB_DEVICE(USB_VENDOR_ID_UNITEC, USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) },
1551        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1552        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1553        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1554        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1555        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1556        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1557        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1558        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1559        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1560        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1561        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1562        { HID_USB_DEVICE(USB_VENDOR_ID_XAT, USB_DEVICE_ID_XAT_CSR) },
1563        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX) },
1564        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX) },
1565        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR) },
1566        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX1) },
1567        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX1) },
1568        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR1) },
1569        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX2) },
1570        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX2) },
1571        { HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR2) },
1572        { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1573        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1574        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1575        { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1576
1577        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1578        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1579        { }
1580};
1581
1582struct hid_dynid {
1583        struct list_head list;
1584        struct hid_device_id id;
1585};
1586
1587/**
1588 * store_new_id - add a new HID device ID to this driver and re-probe devices
1589 * @driver: target device driver
1590 * @buf: buffer for scanning device ID data
1591 * @count: input size
1592 *
1593 * Adds a new dynamic hid device ID to this driver,
1594 * and causes the driver to probe for all devices again.
1595 */
1596static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1597                size_t count)
1598{
1599        struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1600        struct hid_dynid *dynid;
1601        __u32 bus, vendor, product;
1602        unsigned long driver_data = 0;
1603        int ret;
1604
1605        ret = sscanf(buf, "%x %x %x %lx",
1606                        &bus, &vendor, &product, &driver_data);
1607        if (ret < 3)
1608                return -EINVAL;
1609
1610        dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1611        if (!dynid)
1612                return -ENOMEM;
1613
1614        dynid->id.bus = bus;
1615        dynid->id.vendor = vendor;
1616        dynid->id.product = product;
1617        dynid->id.driver_data = driver_data;
1618
1619        spin_lock(&hdrv->dyn_lock);
1620        list_add_tail(&dynid->list, &hdrv->dyn_list);
1621        spin_unlock(&hdrv->dyn_lock);
1622
1623        ret = 0;
1624        if (get_driver(&hdrv->driver)) {
1625                ret = driver_attach(&hdrv->driver);
1626                put_driver(&hdrv->driver);
1627        }
1628
1629        return ret ? : count;
1630}
1631static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1632
1633static void hid_free_dynids(struct hid_driver *hdrv)
1634{
1635        struct hid_dynid *dynid, *n;
1636
1637        spin_lock(&hdrv->dyn_lock);
1638        list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1639                list_del(&dynid->list);
1640                kfree(dynid);
1641        }
1642        spin_unlock(&hdrv->dyn_lock);
1643}
1644
1645static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1646                struct hid_driver *hdrv)
1647{
1648        struct hid_dynid *dynid;
1649
1650        spin_lock(&hdrv->dyn_lock);
1651        list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1652                if (hid_match_one_id(hdev, &dynid->id)) {
1653                        spin_unlock(&hdrv->dyn_lock);
1654                        return &dynid->id;
1655                }
1656        }
1657        spin_unlock(&hdrv->dyn_lock);
1658
1659        return hid_match_id(hdev, hdrv->id_table);
1660}
1661
1662static int hid_bus_match(struct device *dev, struct device_driver *drv)
1663{
1664        struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1665        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1666
1667        if (!hid_match_device(hdev, hdrv))
1668                return 0;
1669
1670        /* generic wants all that don't have specialized driver */
1671        if (!strncmp(hdrv->name, "generic-", 8))
1672                return !hid_match_id(hdev, hid_have_special_driver);
1673
1674        return 1;
1675}
1676
1677static int hid_device_probe(struct device *dev)
1678{
1679        struct hid_driver *hdrv = container_of(dev->driver,
1680                        struct hid_driver, driver);
1681        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1682        const struct hid_device_id *id;
1683        int ret = 0;
1684
1685        if (down_interruptible(&hdev->driver_lock))
1686                return -EINTR;
1687
1688        if (!hdev->driver) {
1689                id = hid_match_device(hdev, hdrv);
1690                if (id == NULL) {
1691                        ret = -ENODEV;
1692                        goto unlock;
1693                }
1694
1695                hdev->driver = hdrv;
1696                if (hdrv->probe) {
1697                        ret = hdrv->probe(hdev, id);
1698                } else { /* default probe */
1699                        ret = hid_parse(hdev);
1700                        if (!ret)
1701                                ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1702                }
1703                if (ret)
1704                        hdev->driver = NULL;
1705        }
1706unlock:
1707        up(&hdev->driver_lock);
1708        return ret;
1709}
1710
1711static int hid_device_remove(struct device *dev)
1712{
1713        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1714        struct hid_driver *hdrv;
1715
1716        if (down_interruptible(&hdev->driver_lock))
1717                return -EINTR;
1718
1719        hdrv = hdev->driver;
1720        if (hdrv) {
1721                if (hdrv->remove)
1722                        hdrv->remove(hdev);
1723                else /* default remove */
1724                        hid_hw_stop(hdev);
1725                hdev->driver = NULL;
1726        }
1727
1728        up(&hdev->driver_lock);
1729        return 0;
1730}
1731
1732static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1733{
1734        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1735
1736        if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1737                        hdev->bus, hdev->vendor, hdev->product))
1738                return -ENOMEM;
1739
1740        if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1741                return -ENOMEM;
1742
1743        if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1744                return -ENOMEM;
1745
1746        if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1747                return -ENOMEM;
1748
1749        if (add_uevent_var(env, "MODALIAS=hid:b%04Xv%08Xp%08X",
1750                        hdev->bus, hdev->vendor, hdev->product))
1751                return -ENOMEM;
1752
1753        return 0;
1754}
1755
1756static struct bus_type hid_bus_type = {
1757        .name           = "hid",
1758        .match          = hid_bus_match,
1759        .probe          = hid_device_probe,
1760        .remove         = hid_device_remove,
1761        .uevent         = hid_uevent,
1762};
1763
1764/* a list of devices that shouldn't be handled by HID core at all */
1765static const struct hid_device_id hid_ignore_list[] = {
1766        { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1767        { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1768        { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1769        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1770        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1771        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1772        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1773        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1774        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1775        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1776        { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1777        { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1778        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1779        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1780        { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1781        { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1782        { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1783        { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1784        { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1785        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1786        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1787        { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1788        { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1789        { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1790        { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1791        { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
1792        { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1793        { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1794        { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1795        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1796        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1797        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1798        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1799        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1800        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1801        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1802        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1803        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1804        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1805        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1806        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1807        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1808        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1809        { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1810        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1811        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1812        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1813        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1814        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1815        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1816        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1817        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1818        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1819        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1820        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1821        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1822        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1823        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1824        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1825        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1826        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1827        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1828        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1829        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1830        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1831        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1832        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1833        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1834        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1835        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1836        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1837        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1838        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1839        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1840        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1841        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1842        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1843        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1844        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1845        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1846        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1847        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1848        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1849        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1850        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1851        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1852        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1853        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1854        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1855        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1856        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1857        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1858        { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1859        { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1860        { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1861        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1862        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1863        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1864        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
1865        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1866        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
1867        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1868        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
1869        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
1870        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
1871        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
1872        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
1873        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
1874        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1875        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1876        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1877        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
1878        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
1879        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
1880        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
1881        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
1882        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
1883        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
1884        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
1885        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
1886        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
1887        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
1888        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
1889        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
1890        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
1891        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
1892        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
1893        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
1894        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
1895        { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
1896        { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
1897        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
1898        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
1899        { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
1900        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
1901        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
1902        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
1903        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
1904        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
1905        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
1906        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
1907        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
1908        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
1909        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
1910        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
1911        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
1912        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
1913        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
1914        { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
1915        { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
1916        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
1917        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
1918        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
1919        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
1920        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
1921        { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
1922        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
1923        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
1924        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
1925        { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
1926        { }
1927};
1928
1929/**
1930 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
1931 *
1932 * There are composite devices for which we want to ignore only a certain
1933 * interface. This is a list of devices for which only the mouse interface will
1934 * be ignored. This allows a dedicated driver to take care of the interface.
1935 */
1936static const struct hid_device_id hid_mouse_ignore_list[] = {
1937        /* appletouch driver */
1938        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1939        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1940        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1941        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1942        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1943        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1944        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1945        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1946        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1947        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1948        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1949        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1950        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1951        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1952        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1953        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1954        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1955        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1956        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1957        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1958        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1959        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1960        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1961        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1962        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1963        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1964        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1965        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1966        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1967        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1968        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1969        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1970        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1971        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1972        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1973        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1974        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1975        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1976        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1977        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1978        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1979        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1980        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1981        { }
1982};
1983
1984static bool hid_ignore(struct hid_device *hdev)
1985{
1986        switch (hdev->vendor) {
1987        case USB_VENDOR_ID_CODEMERCS:
1988                /* ignore all Code Mercenaries IOWarrior devices */
1989                if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
1990                                hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
1991                        return true;
1992                break;
1993        case USB_VENDOR_ID_LOGITECH:
1994                if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
1995                                hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
1996                        return true;
1997                break;
1998        case USB_VENDOR_ID_SOUNDGRAPH:
1999                if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2000                    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2001                        return true;
2002                break;
2003        case USB_VENDOR_ID_HANWANG:
2004                if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2005                    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2006                        return true;
2007                break;
2008        case USB_VENDOR_ID_JESS:
2009                if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2010                                hdev->type == HID_TYPE_USBNONE)
2011                        return true;
2012        break;
2013        }
2014
2015        if (hdev->type == HID_TYPE_USBMOUSE &&
2016                        hid_match_id(hdev, hid_mouse_ignore_list))
2017                return true;
2018
2019        return !!hid_match_id(hdev, hid_ignore_list);
2020}
2021
2022int hid_add_device(struct hid_device *hdev)
2023{
2024        static atomic_t id = ATOMIC_INIT(0);
2025        int ret;
2026
2027        if (WARN_ON(hdev->status & HID_STAT_ADDED))
2028                return -EBUSY;
2029
2030        /* we need to kill them here, otherwise they will stay allocated to
2031         * wait for coming driver */
2032        if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
2033            && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
2034                return -ENODEV;
2035
2036        /* XXX hack, any other cleaner solution after the driver core
2037         * is converted to allow more than 20 bytes as the device name? */
2038        dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2039                     hdev->vendor, hdev->product, atomic_inc_return(&id));
2040
2041        hid_debug_register(hdev, dev_name(&hdev->dev));
2042        ret = device_add(&hdev->dev);
2043        if (!ret)
2044                hdev->status |= HID_STAT_ADDED;
2045        else
2046                hid_debug_unregister(hdev);
2047
2048        return ret;
2049}
2050EXPORT_SYMBOL_GPL(hid_add_device);
2051
2052/**
2053 * hid_allocate_device - allocate new hid device descriptor
2054 *
2055 * Allocate and initialize hid device, so that hid_destroy_device might be
2056 * used to free it.
2057 *
2058 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2059 * error value.
2060 */
2061struct hid_device *hid_allocate_device(void)
2062{
2063        struct hid_device *hdev;
2064        unsigned int i;
2065        int ret = -ENOMEM;
2066
2067        hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2068        if (hdev == NULL)
2069                return ERR_PTR(ret);
2070
2071        device_initialize(&hdev->dev);
2072        hdev->dev.release = hid_device_release;
2073        hdev->dev.bus = &hid_bus_type;
2074
2075        hdev->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
2076                        sizeof(struct hid_collection), GFP_KERNEL);
2077        if (hdev->collection == NULL)
2078                goto err;
2079        hdev->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
2080
2081        for (i = 0; i < HID_REPORT_TYPES; i++)
2082                INIT_LIST_HEAD(&hdev->report_enum[i].report_list);
2083
2084        init_waitqueue_head(&hdev->debug_wait);
2085        INIT_LIST_HEAD(&hdev->debug_list);
2086        sema_init(&hdev->driver_lock, 1);
2087
2088        return hdev;
2089err:
2090        put_device(&hdev->dev);
2091        return ERR_PTR(ret);
2092}
2093EXPORT_SYMBOL_GPL(hid_allocate_device);
2094
2095static void hid_remove_device(struct hid_device *hdev)
2096{
2097        if (hdev->status & HID_STAT_ADDED) {
2098                device_del(&hdev->dev);
2099                hid_debug_unregister(hdev);
2100                hdev->status &= ~HID_STAT_ADDED;
2101        }
2102}
2103
2104/**
2105 * hid_destroy_device - free previously allocated device
2106 *
2107 * @hdev: hid device
2108 *
2109 * If you allocate hid_device through hid_allocate_device, you should ever
2110 * free by this function.
2111 */
2112void hid_destroy_device(struct hid_device *hdev)
2113{
2114        hid_remove_device(hdev);
2115        put_device(&hdev->dev);
2116}
2117EXPORT_SYMBOL_GPL(hid_destroy_device);
2118
2119int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2120                const char *mod_name)
2121{
2122        int ret;
2123
2124        hdrv->driver.name = hdrv->name;
2125        hdrv->driver.bus = &hid_bus_type;
2126        hdrv->driver.owner = owner;
2127        hdrv->driver.mod_name = mod_name;
2128
2129        INIT_LIST_HEAD(&hdrv->dyn_list);
2130        spin_lock_init(&hdrv->dyn_lock);
2131
2132        ret = driver_register(&hdrv->driver);
2133        if (ret)
2134                return ret;
2135
2136        ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2137        if (ret)
2138                driver_unregister(&hdrv->driver);
2139
2140        return ret;
2141}
2142EXPORT_SYMBOL_GPL(__hid_register_driver);
2143
2144void hid_unregister_driver(struct hid_driver *hdrv)
2145{
2146        driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2147        driver_unregister(&hdrv->driver);
2148        hid_free_dynids(hdrv);
2149}
2150EXPORT_SYMBOL_GPL(hid_unregister_driver);
2151
2152int hid_check_keys_pressed(struct hid_device *hid)
2153{
2154        struct hid_input *hidinput;
2155        int i;
2156
2157        if (!(hid->claimed & HID_CLAIMED_INPUT))
2158                return 0;
2159
2160        list_for_each_entry(hidinput, &hid->inputs, list) {
2161                for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2162                        if (hidinput->input->key[i])
2163                                return 1;
2164        }
2165
2166        return 0;
2167}
2168
2169EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2170
2171static int __init hid_init(void)
2172{
2173        int ret;
2174
2175        if (hid_debug)
2176                pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2177                        "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2178
2179        ret = bus_register(&hid_bus_type);
2180        if (ret) {
2181                pr_err("can't register hid bus\n");
2182                goto err;
2183        }
2184
2185        ret = hidraw_init();
2186        if (ret)
2187                goto err_bus;
2188
2189        hid_debug_init();
2190
2191        return 0;
2192err_bus:
2193        bus_unregister(&hid_bus_type);
2194err:
2195        return ret;
2196}
2197
2198static void __exit hid_exit(void)
2199{
2200        hid_debug_exit();
2201        hidraw_exit();
2202        bus_unregister(&hid_bus_type);
2203}
2204
2205module_init(hid_init);
2206module_exit(hid_exit);
2207
2208MODULE_AUTHOR("Andreas Gal");
2209MODULE_AUTHOR("Vojtech Pavlik");
2210MODULE_AUTHOR("Jiri Kosina");
2211MODULE_LICENSE(DRIVER_LICENSE);
2212
2213