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) 2006-2012 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
  53static int hid_ignore_special_drivers = 0;
  54module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
  55MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");
  56
  57/*
  58 * Register a new report for a device.
  59 */
  60
  61struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
  62{
  63        struct hid_report_enum *report_enum = device->report_enum + type;
  64        struct hid_report *report;
  65
  66        if (report_enum->report_id_hash[id])
  67                return report_enum->report_id_hash[id];
  68
  69        report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
  70        if (!report)
  71                return NULL;
  72
  73        if (id != 0)
  74                report_enum->numbered = 1;
  75
  76        report->id = id;
  77        report->type = type;
  78        report->size = 0;
  79        report->device = device;
  80        report_enum->report_id_hash[id] = report;
  81
  82        list_add_tail(&report->list, &report_enum->report_list);
  83
  84        return report;
  85}
  86EXPORT_SYMBOL_GPL(hid_register_report);
  87
  88/*
  89 * Register a new field for this report.
  90 */
  91
  92static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
  93{
  94        struct hid_field *field;
  95
  96        if (report->maxfield == HID_MAX_FIELDS) {
  97                hid_err(report->device, "too many fields in report\n");
  98                return NULL;
  99        }
 100
 101        field = kzalloc((sizeof(struct hid_field) +
 102                         usages * sizeof(struct hid_usage) +
 103                         values * sizeof(unsigned)), GFP_KERNEL);
 104        if (!field)
 105                return NULL;
 106
 107        field->index = report->maxfield++;
 108        report->field[field->index] = field;
 109        field->usage = (struct hid_usage *)(field + 1);
 110        field->value = (s32 *)(field->usage + usages);
 111        field->report = report;
 112
 113        return field;
 114}
 115
 116/*
 117 * Open a collection. The type/usage is pushed on the stack.
 118 */
 119
 120static int open_collection(struct hid_parser *parser, unsigned type)
 121{
 122        struct hid_collection *collection;
 123        unsigned usage;
 124
 125        usage = parser->local.usage[0];
 126
 127        if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
 128                hid_err(parser->device, "collection stack overflow\n");
 129                return -1;
 130        }
 131
 132        if (parser->device->maxcollection == parser->device->collection_size) {
 133                collection = kmalloc(sizeof(struct hid_collection) *
 134                                parser->device->collection_size * 2, GFP_KERNEL);
 135                if (collection == NULL) {
 136                        hid_err(parser->device, "failed to reallocate collection array\n");
 137                        return -1;
 138                }
 139                memcpy(collection, parser->device->collection,
 140                        sizeof(struct hid_collection) *
 141                        parser->device->collection_size);
 142                memset(collection + parser->device->collection_size, 0,
 143                        sizeof(struct hid_collection) *
 144                        parser->device->collection_size);
 145                kfree(parser->device->collection);
 146                parser->device->collection = collection;
 147                parser->device->collection_size *= 2;
 148        }
 149
 150        parser->collection_stack[parser->collection_stack_ptr++] =
 151                parser->device->maxcollection;
 152
 153        collection = parser->device->collection +
 154                parser->device->maxcollection++;
 155        collection->type = type;
 156        collection->usage = usage;
 157        collection->level = parser->collection_stack_ptr - 1;
 158
 159        if (type == HID_COLLECTION_APPLICATION)
 160                parser->device->maxapplication++;
 161
 162        return 0;
 163}
 164
 165/*
 166 * Close a collection.
 167 */
 168
 169static int close_collection(struct hid_parser *parser)
 170{
 171        if (!parser->collection_stack_ptr) {
 172                hid_err(parser->device, "collection stack underflow\n");
 173                return -1;
 174        }
 175        parser->collection_stack_ptr--;
 176        return 0;
 177}
 178
 179/*
 180 * Climb up the stack, search for the specified collection type
 181 * and return the usage.
 182 */
 183
 184static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 185{
 186        struct hid_collection *collection = parser->device->collection;
 187        int n;
 188
 189        for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
 190                unsigned index = parser->collection_stack[n];
 191                if (collection[index].type == type)
 192                        return collection[index].usage;
 193        }
 194        return 0; /* we know nothing about this usage type */
 195}
 196
 197/*
 198 * Add a usage to the temporary parser table.
 199 */
 200
 201static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 202{
 203        if (parser->local.usage_index >= HID_MAX_USAGES) {
 204                hid_err(parser->device, "usage index exceeded\n");
 205                return -1;
 206        }
 207        parser->local.usage[parser->local.usage_index] = usage;
 208        parser->local.collection_index[parser->local.usage_index] =
 209                parser->collection_stack_ptr ?
 210                parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
 211        parser->local.usage_index++;
 212        return 0;
 213}
 214
 215/*
 216 * Register a new field for this report.
 217 */
 218
 219static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
 220{
 221        struct hid_report *report;
 222        struct hid_field *field;
 223        int usages;
 224        unsigned offset;
 225        int i;
 226
 227        report = hid_register_report(parser->device, report_type, parser->global.report_id);
 228        if (!report) {
 229                hid_err(parser->device, "hid_register_report failed\n");
 230                return -1;
 231        }
 232
 233        /* Handle both signed and unsigned cases properly */
 234        if ((parser->global.logical_minimum < 0 &&
 235                parser->global.logical_maximum <
 236                parser->global.logical_minimum) ||
 237                (parser->global.logical_minimum >= 0 &&
 238                (__u32)parser->global.logical_maximum <
 239                (__u32)parser->global.logical_minimum)) {
 240                dbg_hid("logical range invalid 0x%x 0x%x\n",
 241                        parser->global.logical_minimum,
 242                        parser->global.logical_maximum);
 243                return -1;
 244        }
 245
 246        offset = report->size;
 247        report->size += parser->global.report_size * parser->global.report_count;
 248
 249        if (!parser->local.usage_index) /* Ignore padding fields */
 250                return 0;
 251
 252        usages = max_t(int, parser->local.usage_index, parser->global.report_count);
 253
 254        field = hid_register_field(report, usages, parser->global.report_count);
 255        if (!field)
 256                return 0;
 257
 258        field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
 259        field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
 260        field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
 261
 262        for (i = 0; i < usages; i++) {
 263                int j = i;
 264                /* Duplicate the last usage we parsed if we have excess values */
 265                if (i >= parser->local.usage_index)
 266                        j = parser->local.usage_index - 1;
 267                field->usage[i].hid = parser->local.usage[j];
 268                field->usage[i].collection_index =
 269                        parser->local.collection_index[j];
 270        }
 271
 272        field->maxusage = usages;
 273        field->flags = flags;
 274        field->report_offset = offset;
 275        field->report_type = report_type;
 276        field->report_size = parser->global.report_size;
 277        field->report_count = parser->global.report_count;
 278        field->logical_minimum = parser->global.logical_minimum;
 279        field->logical_maximum = parser->global.logical_maximum;
 280        field->physical_minimum = parser->global.physical_minimum;
 281        field->physical_maximum = parser->global.physical_maximum;
 282        field->unit_exponent = parser->global.unit_exponent;
 283        field->unit = parser->global.unit;
 284
 285        return 0;
 286}
 287
 288/*
 289 * Read data value from item.
 290 */
 291
 292static u32 item_udata(struct hid_item *item)
 293{
 294        switch (item->size) {
 295        case 1: return item->data.u8;
 296        case 2: return item->data.u16;
 297        case 4: return item->data.u32;
 298        }
 299        return 0;
 300}
 301
 302static s32 item_sdata(struct hid_item *item)
 303{
 304        switch (item->size) {
 305        case 1: return item->data.s8;
 306        case 2: return item->data.s16;
 307        case 4: return item->data.s32;
 308        }
 309        return 0;
 310}
 311
 312/*
 313 * Process a global item.
 314 */
 315
 316static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 317{
 318        switch (item->tag) {
 319        case HID_GLOBAL_ITEM_TAG_PUSH:
 320
 321                if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
 322                        hid_err(parser->device, "global environment stack overflow\n");
 323                        return -1;
 324                }
 325
 326                memcpy(parser->global_stack + parser->global_stack_ptr++,
 327                        &parser->global, sizeof(struct hid_global));
 328                return 0;
 329
 330        case HID_GLOBAL_ITEM_TAG_POP:
 331
 332                if (!parser->global_stack_ptr) {
 333                        hid_err(parser->device, "global environment stack underflow\n");
 334                        return -1;
 335                }
 336
 337                memcpy(&parser->global, parser->global_stack +
 338                        --parser->global_stack_ptr, sizeof(struct hid_global));
 339                return 0;
 340
 341        case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
 342                parser->global.usage_page = item_udata(item);
 343                return 0;
 344
 345        case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
 346                parser->global.logical_minimum = item_sdata(item);
 347                return 0;
 348
 349        case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
 350                if (parser->global.logical_minimum < 0)
 351                        parser->global.logical_maximum = item_sdata(item);
 352                else
 353                        parser->global.logical_maximum = item_udata(item);
 354                return 0;
 355
 356        case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
 357                parser->global.physical_minimum = item_sdata(item);
 358                return 0;
 359
 360        case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
 361                if (parser->global.physical_minimum < 0)
 362                        parser->global.physical_maximum = item_sdata(item);
 363                else
 364                        parser->global.physical_maximum = item_udata(item);
 365                return 0;
 366
 367        case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
 368                parser->global.unit_exponent = item_sdata(item);
 369                return 0;
 370
 371        case HID_GLOBAL_ITEM_TAG_UNIT:
 372                parser->global.unit = item_udata(item);
 373                return 0;
 374
 375        case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 376                parser->global.report_size = item_udata(item);
 377                if (parser->global.report_size > 96) {
 378                        hid_err(parser->device, "invalid report_size %d\n",
 379                                        parser->global.report_size);
 380                        return -1;
 381                }
 382                return 0;
 383
 384        case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 385                parser->global.report_count = item_udata(item);
 386                if (parser->global.report_count > HID_MAX_USAGES) {
 387                        hid_err(parser->device, "invalid report_count %d\n",
 388                                        parser->global.report_count);
 389                        return -1;
 390                }
 391                return 0;
 392
 393        case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 394                parser->global.report_id = item_udata(item);
 395                if (parser->global.report_id == 0) {
 396                        hid_err(parser->device, "report_id 0 is invalid\n");
 397                        return -1;
 398                }
 399                return 0;
 400
 401        default:
 402                hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
 403                return -1;
 404        }
 405}
 406
 407/*
 408 * Process a local item.
 409 */
 410
 411static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 412{
 413        __u32 data;
 414        unsigned n;
 415
 416        data = item_udata(item);
 417
 418        switch (item->tag) {
 419        case HID_LOCAL_ITEM_TAG_DELIMITER:
 420
 421                if (data) {
 422                        /*
 423                         * We treat items before the first delimiter
 424                         * as global to all usage sets (branch 0).
 425                         * In the moment we process only these global
 426                         * items and the first delimiter set.
 427                         */
 428                        if (parser->local.delimiter_depth != 0) {
 429                                hid_err(parser->device, "nested delimiters\n");
 430                                return -1;
 431                        }
 432                        parser->local.delimiter_depth++;
 433                        parser->local.delimiter_branch++;
 434                } else {
 435                        if (parser->local.delimiter_depth < 1) {
 436                                hid_err(parser->device, "bogus close delimiter\n");
 437                                return -1;
 438                        }
 439                        parser->local.delimiter_depth--;
 440                }
 441                return 1;
 442
 443        case HID_LOCAL_ITEM_TAG_USAGE:
 444
 445                if (parser->local.delimiter_branch > 1) {
 446                        dbg_hid("alternative usage ignored\n");
 447                        return 0;
 448                }
 449
 450                if (item->size <= 2)
 451                        data = (parser->global.usage_page << 16) + data;
 452
 453                return hid_add_usage(parser, data);
 454
 455        case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 456
 457                if (parser->local.delimiter_branch > 1) {
 458                        dbg_hid("alternative usage ignored\n");
 459                        return 0;
 460                }
 461
 462                if (item->size <= 2)
 463                        data = (parser->global.usage_page << 16) + data;
 464
 465                parser->local.usage_minimum = data;
 466                return 0;
 467
 468        case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 469
 470                if (parser->local.delimiter_branch > 1) {
 471                        dbg_hid("alternative usage ignored\n");
 472                        return 0;
 473                }
 474
 475                if (item->size <= 2)
 476                        data = (parser->global.usage_page << 16) + data;
 477
 478                for (n = parser->local.usage_minimum; n <= data; n++)
 479                        if (hid_add_usage(parser, n)) {
 480                                dbg_hid("hid_add_usage failed\n");
 481                                return -1;
 482                        }
 483                return 0;
 484
 485        default:
 486
 487                dbg_hid("unknown local item tag 0x%x\n", item->tag);
 488                return 0;
 489        }
 490        return 0;
 491}
 492
 493/*
 494 * Process a main item.
 495 */
 496
 497static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 498{
 499        __u32 data;
 500        int ret;
 501
 502        data = item_udata(item);
 503
 504        switch (item->tag) {
 505        case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
 506                ret = open_collection(parser, data & 0xff);
 507                break;
 508        case HID_MAIN_ITEM_TAG_END_COLLECTION:
 509                ret = close_collection(parser);
 510                break;
 511        case HID_MAIN_ITEM_TAG_INPUT:
 512                ret = hid_add_field(parser, HID_INPUT_REPORT, data);
 513                break;
 514        case HID_MAIN_ITEM_TAG_OUTPUT:
 515                ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
 516                break;
 517        case HID_MAIN_ITEM_TAG_FEATURE:
 518                ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 519                break;
 520        default:
 521                hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
 522                ret = 0;
 523        }
 524
 525        memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
 526
 527        return ret;
 528}
 529
 530/*
 531 * Process a reserved item.
 532 */
 533
 534static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
 535{
 536        dbg_hid("reserved item type, tag 0x%x\n", item->tag);
 537        return 0;
 538}
 539
 540/*
 541 * Free a report and all registered fields. The field->usage and
 542 * field->value table's are allocated behind the field, so we need
 543 * only to free(field) itself.
 544 */
 545
 546static void hid_free_report(struct hid_report *report)
 547{
 548        unsigned n;
 549
 550        for (n = 0; n < report->maxfield; n++)
 551                kfree(report->field[n]);
 552        kfree(report);
 553}
 554
 555/*
 556 * Close report. This function returns the device
 557 * state to the point prior to hid_open_report().
 558 */
 559static void hid_close_report(struct hid_device *device)
 560{
 561        unsigned i, j;
 562
 563        for (i = 0; i < HID_REPORT_TYPES; i++) {
 564                struct hid_report_enum *report_enum = device->report_enum + i;
 565
 566                for (j = 0; j < 256; j++) {
 567                        struct hid_report *report = report_enum->report_id_hash[j];
 568                        if (report)
 569                                hid_free_report(report);
 570                }
 571                memset(report_enum, 0, sizeof(*report_enum));
 572                INIT_LIST_HEAD(&report_enum->report_list);
 573        }
 574
 575        kfree(device->rdesc);
 576        device->rdesc = NULL;
 577        device->rsize = 0;
 578
 579        kfree(device->collection);
 580        device->collection = NULL;
 581        device->collection_size = 0;
 582        device->maxcollection = 0;
 583        device->maxapplication = 0;
 584
 585        device->status &= ~HID_STAT_PARSED;
 586}
 587
 588/*
 589 * Free a device structure, all reports, and all fields.
 590 */
 591
 592static void hid_device_release(struct device *dev)
 593{
 594        struct hid_device *hid = container_of(dev, struct hid_device, dev);
 595
 596        hid_close_report(hid);
 597        kfree(hid->dev_rdesc);
 598        kfree(hid);
 599}
 600
 601/*
 602 * Fetch a report description item from the data stream. We support long
 603 * items, though they are not used yet.
 604 */
 605
 606static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
 607{
 608        u8 b;
 609
 610        if ((end - start) <= 0)
 611                return NULL;
 612
 613        b = *start++;
 614
 615        item->type = (b >> 2) & 3;
 616        item->tag  = (b >> 4) & 15;
 617
 618        if (item->tag == HID_ITEM_TAG_LONG) {
 619
 620                item->format = HID_ITEM_FORMAT_LONG;
 621
 622                if ((end - start) < 2)
 623                        return NULL;
 624
 625                item->size = *start++;
 626                item->tag  = *start++;
 627
 628                if ((end - start) < item->size)
 629                        return NULL;
 630
 631                item->data.longdata = start;
 632                start += item->size;
 633                return start;
 634        }
 635
 636        item->format = HID_ITEM_FORMAT_SHORT;
 637        item->size = b & 3;
 638
 639        switch (item->size) {
 640        case 0:
 641                return start;
 642
 643        case 1:
 644                if ((end - start) < 1)
 645                        return NULL;
 646                item->data.u8 = *start++;
 647                return start;
 648
 649        case 2:
 650                if ((end - start) < 2)
 651                        return NULL;
 652                item->data.u16 = get_unaligned_le16(start);
 653                start = (__u8 *)((__le16 *)start + 1);
 654                return start;
 655
 656        case 3:
 657                item->size++;
 658                if ((end - start) < 4)
 659                        return NULL;
 660                item->data.u32 = get_unaligned_le32(start);
 661                start = (__u8 *)((__le32 *)start + 1);
 662                return start;
 663        }
 664
 665        return NULL;
 666}
 667
 668static void hid_scan_usage(struct hid_device *hid, u32 usage)
 669{
 670        if (usage == HID_DG_CONTACTID)
 671                hid->group = HID_GROUP_MULTITOUCH;
 672}
 673
 674/*
 675 * Scan a report descriptor before the device is added to the bus.
 676 * Sets device groups and other properties that determine what driver
 677 * to load.
 678 */
 679static int hid_scan_report(struct hid_device *hid)
 680{
 681        unsigned int page = 0, delim = 0;
 682        __u8 *start = hid->dev_rdesc;
 683        __u8 *end = start + hid->dev_rsize;
 684        unsigned int u, u_min = 0, u_max = 0;
 685        struct hid_item item;
 686
 687        hid->group = HID_GROUP_GENERIC;
 688        while ((start = fetch_item(start, end, &item)) != NULL) {
 689                if (item.format != HID_ITEM_FORMAT_SHORT)
 690                        return -EINVAL;
 691                if (item.type == HID_ITEM_TYPE_GLOBAL) {
 692                        if (item.tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE)
 693                                page = item_udata(&item) << 16;
 694                } else if (item.type == HID_ITEM_TYPE_LOCAL) {
 695                        if (delim > 1)
 696                                break;
 697                        u = item_udata(&item);
 698                        if (item.size <= 2)
 699                                u += page;
 700                        switch (item.tag) {
 701                        case HID_LOCAL_ITEM_TAG_DELIMITER:
 702                                delim += !!u;
 703                                break;
 704                        case HID_LOCAL_ITEM_TAG_USAGE:
 705                                hid_scan_usage(hid, u);
 706                                break;
 707                        case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
 708                                u_min = u;
 709                                break;
 710                        case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
 711                                u_max = u;
 712                                for (u = u_min; u <= u_max; u++)
 713                                        hid_scan_usage(hid, u);
 714                                break;
 715                        }
 716                }
 717        }
 718
 719        return 0;
 720}
 721
 722/**
 723 * hid_parse_report - parse device report
 724 *
 725 * @device: hid device
 726 * @start: report start
 727 * @size: report size
 728 *
 729 * Allocate the device report as read by the bus driver. This function should
 730 * only be called from parse() in ll drivers.
 731 */
 732int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
 733{
 734        hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
 735        if (!hid->dev_rdesc)
 736                return -ENOMEM;
 737        hid->dev_rsize = size;
 738        return 0;
 739}
 740EXPORT_SYMBOL_GPL(hid_parse_report);
 741
 742/**
 743 * hid_open_report - open a driver-specific device report
 744 *
 745 * @device: hid device
 746 *
 747 * Parse a report description into a hid_device structure. Reports are
 748 * enumerated, fields are attached to these reports.
 749 * 0 returned on success, otherwise nonzero error value.
 750 *
 751 * This function (or the equivalent hid_parse() macro) should only be
 752 * called from probe() in drivers, before starting the device.
 753 */
 754int hid_open_report(struct hid_device *device)
 755{
 756        struct hid_parser *parser;
 757        struct hid_item item;
 758        unsigned int size;
 759        __u8 *start;
 760        __u8 *end;
 761        int ret;
 762        static int (*dispatch_type[])(struct hid_parser *parser,
 763                                      struct hid_item *item) = {
 764                hid_parser_main,
 765                hid_parser_global,
 766                hid_parser_local,
 767                hid_parser_reserved
 768        };
 769
 770        if (WARN_ON(device->status & HID_STAT_PARSED))
 771                return -EBUSY;
 772
 773        start = device->dev_rdesc;
 774        if (WARN_ON(!start))
 775                return -ENODEV;
 776        size = device->dev_rsize;
 777
 778        if (device->driver->report_fixup)
 779                start = device->driver->report_fixup(device, start, &size);
 780
 781        device->rdesc = kmemdup(start, size, GFP_KERNEL);
 782        if (device->rdesc == NULL)
 783                return -ENOMEM;
 784        device->rsize = size;
 785
 786        parser = vzalloc(sizeof(struct hid_parser));
 787        if (!parser) {
 788                ret = -ENOMEM;
 789                goto err;
 790        }
 791
 792        parser->device = device;
 793
 794        end = start + size;
 795
 796        device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
 797                                     sizeof(struct hid_collection), GFP_KERNEL);
 798        if (!device->collection) {
 799                ret = -ENOMEM;
 800                goto err;
 801        }
 802        device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
 803
 804        ret = -EINVAL;
 805        while ((start = fetch_item(start, end, &item)) != NULL) {
 806
 807                if (item.format != HID_ITEM_FORMAT_SHORT) {
 808                        hid_err(device, "unexpected long global item\n");
 809                        goto err;
 810                }
 811
 812                if (dispatch_type[item.type](parser, &item)) {
 813                        hid_err(device, "item %u %u %u %u parsing failed\n",
 814                                item.format, (unsigned)item.size,
 815                                (unsigned)item.type, (unsigned)item.tag);
 816                        goto err;
 817                }
 818
 819                if (start == end) {
 820                        if (parser->collection_stack_ptr) {
 821                                hid_err(device, "unbalanced collection at end of report description\n");
 822                                goto err;
 823                        }
 824                        if (parser->local.delimiter_depth) {
 825                                hid_err(device, "unbalanced delimiter at end of report description\n");
 826                                goto err;
 827                        }
 828                        vfree(parser);
 829                        device->status |= HID_STAT_PARSED;
 830                        return 0;
 831                }
 832        }
 833
 834        hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
 835err:
 836        vfree(parser);
 837        hid_close_report(device);
 838        return ret;
 839}
 840EXPORT_SYMBOL_GPL(hid_open_report);
 841
 842/*
 843 * Convert a signed n-bit integer to signed 32-bit integer. Common
 844 * cases are done through the compiler, the screwed things has to be
 845 * done by hand.
 846 */
 847
 848static s32 snto32(__u32 value, unsigned n)
 849{
 850        switch (n) {
 851        case 8:  return ((__s8)value);
 852        case 16: return ((__s16)value);
 853        case 32: return ((__s32)value);
 854        }
 855        return value & (1 << (n - 1)) ? value | (-1 << n) : value;
 856}
 857
 858/*
 859 * Convert a signed 32-bit integer to a signed n-bit integer.
 860 */
 861
 862static u32 s32ton(__s32 value, unsigned n)
 863{
 864        s32 a = value >> (n - 1);
 865        if (a && a != -1)
 866                return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
 867        return value & ((1 << n) - 1);
 868}
 869
 870/*
 871 * Extract/implement a data field from/to a little endian report (bit array).
 872 *
 873 * Code sort-of follows HID spec:
 874 *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 875 *
 876 * While the USB HID spec allows unlimited length bit fields in "report
 877 * descriptors", most devices never use more than 16 bits.
 878 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 879 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 880 */
 881
 882static __u32 extract(const struct hid_device *hid, __u8 *report,
 883                     unsigned offset, unsigned n)
 884{
 885        u64 x;
 886
 887        if (n > 32)
 888                hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
 889                         n, current->comm);
 890
 891        report += offset >> 3;  /* adjust byte index */
 892        offset &= 7;            /* now only need bit offset into one byte */
 893        x = get_unaligned_le64(report);
 894        x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
 895        return (u32) x;
 896}
 897
 898/*
 899 * "implement" : set bits in a little endian bit stream.
 900 * Same concepts as "extract" (see comments above).
 901 * The data mangled in the bit stream remains in little endian
 902 * order the whole time. It make more sense to talk about
 903 * endianness of register values by considering a register
 904 * a "cached" copy of the little endiad bit stream.
 905 */
 906static void implement(const struct hid_device *hid, __u8 *report,
 907                      unsigned offset, unsigned n, __u32 value)
 908{
 909        u64 x;
 910        u64 m = (1ULL << n) - 1;
 911
 912        if (n > 32)
 913                hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
 914                         __func__, n, current->comm);
 915
 916        if (value > m)
 917                hid_warn(hid, "%s() called with too large value %d! (%s)\n",
 918                         __func__, value, current->comm);
 919        WARN_ON(value > m);
 920        value &= m;
 921
 922        report += offset >> 3;
 923        offset &= 7;
 924
 925        x = get_unaligned_le64(report);
 926        x &= ~(m << offset);
 927        x |= ((u64)value) << offset;
 928        put_unaligned_le64(x, report);
 929}
 930
 931/*
 932 * Search an array for a value.
 933 */
 934
 935static int search(__s32 *array, __s32 value, unsigned n)
 936{
 937        while (n--) {
 938                if (*array++ == value)
 939                        return 0;
 940        }
 941        return -1;
 942}
 943
 944/**
 945 * hid_match_report - check if driver's raw_event should be called
 946 *
 947 * @hid: hid device
 948 * @report_type: type to match against
 949 *
 950 * compare hid->driver->report_table->report_type to report->type
 951 */
 952static int hid_match_report(struct hid_device *hid, struct hid_report *report)
 953{
 954        const struct hid_report_id *id = hid->driver->report_table;
 955
 956        if (!id) /* NULL means all */
 957                return 1;
 958
 959        for (; id->report_type != HID_TERMINATOR; id++)
 960                if (id->report_type == HID_ANY_ID ||
 961                                id->report_type == report->type)
 962                        return 1;
 963        return 0;
 964}
 965
 966/**
 967 * hid_match_usage - check if driver's event should be called
 968 *
 969 * @hid: hid device
 970 * @usage: usage to match against
 971 *
 972 * compare hid->driver->usage_table->usage_{type,code} to
 973 * usage->usage_{type,code}
 974 */
 975static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
 976{
 977        const struct hid_usage_id *id = hid->driver->usage_table;
 978
 979        if (!id) /* NULL means all */
 980                return 1;
 981
 982        for (; id->usage_type != HID_ANY_ID - 1; id++)
 983                if ((id->usage_hid == HID_ANY_ID ||
 984                                id->usage_hid == usage->hid) &&
 985                                (id->usage_type == HID_ANY_ID ||
 986                                id->usage_type == usage->type) &&
 987                                (id->usage_code == HID_ANY_ID ||
 988                                 id->usage_code == usage->code))
 989                        return 1;
 990        return 0;
 991}
 992
 993static void hid_process_event(struct hid_device *hid, struct hid_field *field,
 994                struct hid_usage *usage, __s32 value, int interrupt)
 995{
 996        struct hid_driver *hdrv = hid->driver;
 997        int ret;
 998
 999        if (!list_empty(&hid->debug_list))
1000                hid_dump_input(hid, usage, value);
1001
1002        if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1003                ret = hdrv->event(hid, field, usage, value);
1004                if (ret != 0) {
1005                        if (ret < 0)
1006                                hid_err(hid, "%s's event failed with %d\n",
1007                                                hdrv->name, ret);
1008                        return;
1009                }
1010        }
1011
1012        if (hid->claimed & HID_CLAIMED_INPUT)
1013                hidinput_hid_event(hid, field, usage, value);
1014        if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1015                hid->hiddev_hid_event(hid, field, usage, value);
1016}
1017
1018/*
1019 * Analyse a received field, and fetch the data from it. The field
1020 * content is stored for next report processing (we do differential
1021 * reporting to the layer).
1022 */
1023
1024static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1025                            __u8 *data, int interrupt)
1026{
1027        unsigned n;
1028        unsigned count = field->report_count;
1029        unsigned offset = field->report_offset;
1030        unsigned size = field->report_size;
1031        __s32 min = field->logical_minimum;
1032        __s32 max = field->logical_maximum;
1033        __s32 *value;
1034
1035        value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1036        if (!value)
1037                return;
1038
1039        for (n = 0; n < count; n++) {
1040
1041                value[n] = min < 0 ?
1042                        snto32(extract(hid, data, offset + n * size, size),
1043                               size) :
1044                        extract(hid, data, offset + n * size, size);
1045
1046                /* Ignore report if ErrorRollOver */
1047                if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1048                    value[n] >= min && value[n] <= max &&
1049                    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1050                        goto exit;
1051        }
1052
1053        for (n = 0; n < count; n++) {
1054
1055                if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1056                        hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1057                        continue;
1058                }
1059
1060                if (field->value[n] >= min && field->value[n] <= max
1061                        && field->usage[field->value[n] - min].hid
1062                        && search(value, field->value[n], count))
1063                                hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1064
1065                if (value[n] >= min && value[n] <= max
1066                        && field->usage[value[n] - min].hid
1067                        && search(field->value, value[n], count))
1068                                hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1069        }
1070
1071        memcpy(field->value, value, count * sizeof(__s32));
1072exit:
1073        kfree(value);
1074}
1075
1076/*
1077 * Output the field into the report.
1078 */
1079
1080static void hid_output_field(const struct hid_device *hid,
1081                             struct hid_field *field, __u8 *data)
1082{
1083        unsigned count = field->report_count;
1084        unsigned offset = field->report_offset;
1085        unsigned size = field->report_size;
1086        unsigned n;
1087
1088        for (n = 0; n < count; n++) {
1089                if (field->logical_minimum < 0) /* signed values */
1090                        implement(hid, data, offset + n * size, size,
1091                                  s32ton(field->value[n], size));
1092                else                            /* unsigned values */
1093                        implement(hid, data, offset + n * size, size,
1094                                  field->value[n]);
1095        }
1096}
1097
1098/*
1099 * Create a report.
1100 */
1101
1102void hid_output_report(struct hid_report *report, __u8 *data)
1103{
1104        unsigned n;
1105
1106        if (report->id > 0)
1107                *data++ = report->id;
1108
1109        memset(data, 0, ((report->size - 1) >> 3) + 1);
1110        for (n = 0; n < report->maxfield; n++)
1111                hid_output_field(report->device, report->field[n], data);
1112}
1113EXPORT_SYMBOL_GPL(hid_output_report);
1114
1115/*
1116 * Set a field value. The report this field belongs to has to be
1117 * created and transferred to the device, to set this value in the
1118 * device.
1119 */
1120
1121int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1122{
1123        unsigned size = field->report_size;
1124
1125        hid_dump_input(field->report->device, field->usage + offset, value);
1126
1127        if (offset >= field->report_count) {
1128                hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1129                                offset, field->report_count);
1130                return -1;
1131        }
1132        if (field->logical_minimum < 0) {
1133                if (value != snto32(s32ton(value, size), size)) {
1134                        hid_err(field->report->device, "value %d is out of range\n", value);
1135                        return -1;
1136                }
1137        }
1138        field->value[offset] = value;
1139        return 0;
1140}
1141EXPORT_SYMBOL_GPL(hid_set_field);
1142
1143static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1144                const u8 *data)
1145{
1146        struct hid_report *report;
1147        unsigned int n = 0;     /* Normally report number is 0 */
1148
1149        /* Device uses numbered reports, data[0] is report number */
1150        if (report_enum->numbered)
1151                n = *data;
1152
1153        report = report_enum->report_id_hash[n];
1154        if (report == NULL)
1155                dbg_hid("undefined report_id %u received\n", n);
1156
1157        return report;
1158}
1159
1160int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1161                int interrupt)
1162{
1163        struct hid_report_enum *report_enum = hid->report_enum + type;
1164        struct hid_report *report;
1165        unsigned int a;
1166        int rsize, csize = size;
1167        u8 *cdata = data;
1168        int ret = 0;
1169
1170        report = hid_get_report(report_enum, data);
1171        if (!report)
1172                goto out;
1173
1174        if (report_enum->numbered) {
1175                cdata++;
1176                csize--;
1177        }
1178
1179        rsize = ((report->size - 1) >> 3) + 1;
1180
1181        if (rsize > HID_MAX_BUFFER_SIZE)
1182                rsize = HID_MAX_BUFFER_SIZE;
1183
1184        if (csize < rsize) {
1185                dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1186                                csize, rsize);
1187                memset(cdata + csize, 0, rsize - csize);
1188        }
1189
1190        if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1191                hid->hiddev_report_event(hid, report);
1192        if (hid->claimed & HID_CLAIMED_HIDRAW) {
1193                ret = hidraw_report_event(hid, data, size);
1194                if (ret)
1195                        goto out;
1196        }
1197
1198        if (hid->claimed != HID_CLAIMED_HIDRAW) {
1199                for (a = 0; a < report->maxfield; a++)
1200                        hid_input_field(hid, report->field[a], cdata, interrupt);
1201        }
1202
1203        if (hid->claimed & HID_CLAIMED_INPUT)
1204                hidinput_report_event(hid, report);
1205out:
1206        return ret;
1207}
1208EXPORT_SYMBOL_GPL(hid_report_raw_event);
1209
1210/**
1211 * hid_input_report - report data from lower layer (usb, bt...)
1212 *
1213 * @hid: hid device
1214 * @type: HID report type (HID_*_REPORT)
1215 * @data: report contents
1216 * @size: size of data parameter
1217 * @interrupt: distinguish between interrupt and control transfers
1218 *
1219 * This is data entry for lower layers.
1220 */
1221int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1222{
1223        struct hid_report_enum *report_enum;
1224        struct hid_driver *hdrv;
1225        struct hid_report *report;
1226        char *buf;
1227        unsigned int i;
1228        int ret = 0;
1229
1230        if (!hid)
1231                return -ENODEV;
1232
1233        if (down_trylock(&hid->driver_lock))
1234                return -EBUSY;
1235
1236        if (!hid->driver) {
1237                ret = -ENODEV;
1238                goto unlock;
1239        }
1240        report_enum = hid->report_enum + type;
1241        hdrv = hid->driver;
1242
1243        if (!size) {
1244                dbg_hid("empty report\n");
1245                ret = -1;
1246                goto unlock;
1247        }
1248
1249        /* Avoid unnecessary overhead if debugfs is disabled */
1250        if (list_empty(&hid->debug_list))
1251                goto nomem;
1252
1253        buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
1254
1255        if (!buf)
1256                goto nomem;
1257
1258        /* dump the report */
1259        snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1260                        "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
1261        hid_debug_event(hid, buf);
1262
1263        for (i = 0; i < size; i++) {
1264                snprintf(buf, HID_DEBUG_BUFSIZE - 1,
1265                                " %02x", data[i]);
1266                hid_debug_event(hid, buf);
1267        }
1268        hid_debug_event(hid, "\n");
1269        kfree(buf);
1270
1271nomem:
1272        report = hid_get_report(report_enum, data);
1273
1274        if (!report) {
1275                ret = -1;
1276                goto unlock;
1277        }
1278
1279        if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1280                ret = hdrv->raw_event(hid, report, data, size);
1281                if (ret != 0) {
1282                        ret = ret < 0 ? ret : 0;
1283                        goto unlock;
1284                }
1285        }
1286
1287        ret = hid_report_raw_event(hid, type, data, size, interrupt);
1288
1289unlock:
1290        up(&hid->driver_lock);
1291        return ret;
1292}
1293EXPORT_SYMBOL_GPL(hid_input_report);
1294
1295static bool hid_match_one_id(struct hid_device *hdev,
1296                const struct hid_device_id *id)
1297{
1298        return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1299                (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1300                (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1301                (id->product == HID_ANY_ID || id->product == hdev->product);
1302}
1303
1304const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1305                const struct hid_device_id *id)
1306{
1307        for (; id->bus; id++)
1308                if (hid_match_one_id(hdev, id))
1309                        return id;
1310
1311        return NULL;
1312}
1313
1314static const struct hid_device_id hid_hiddev_list[] = {
1315        { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1316        { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1317        { }
1318};
1319
1320static bool hid_hiddev(struct hid_device *hdev)
1321{
1322        return !!hid_match_id(hdev, hid_hiddev_list);
1323}
1324
1325
1326static ssize_t
1327read_report_descriptor(struct file *filp, struct kobject *kobj,
1328                struct bin_attribute *attr,
1329                char *buf, loff_t off, size_t count)
1330{
1331        struct device *dev = container_of(kobj, struct device, kobj);
1332        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1333
1334        if (off >= hdev->rsize)
1335                return 0;
1336
1337        if (off + count > hdev->rsize)
1338                count = hdev->rsize - off;
1339
1340        memcpy(buf, hdev->rdesc + off, count);
1341
1342        return count;
1343}
1344
1345static struct bin_attribute dev_bin_attr_report_desc = {
1346        .attr = { .name = "report_descriptor", .mode = 0444 },
1347        .read = read_report_descriptor,
1348        .size = HID_MAX_DESCRIPTOR_SIZE,
1349};
1350
1351int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1352{
1353        static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1354                "Joystick", "Gamepad", "Keyboard", "Keypad",
1355                "Multi-Axis Controller"
1356        };
1357        const char *type, *bus;
1358        char buf[64];
1359        unsigned int i;
1360        int len;
1361        int ret;
1362
1363        if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1364                connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1365        if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1366                connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1367        if (hdev->bus != BUS_USB)
1368                connect_mask &= ~HID_CONNECT_HIDDEV;
1369        if (hid_hiddev(hdev))
1370                connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1371
1372        if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1373                                connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1374                hdev->claimed |= HID_CLAIMED_INPUT;
1375
1376        if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1377                        !hdev->hiddev_connect(hdev,
1378                                connect_mask & HID_CONNECT_HIDDEV_FORCE))
1379                hdev->claimed |= HID_CLAIMED_HIDDEV;
1380        if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1381                hdev->claimed |= HID_CLAIMED_HIDRAW;
1382
1383        /* Drivers with the ->raw_event callback set are not required to connect
1384         * to any other listener. */
1385        if (!hdev->claimed && !hdev->driver->raw_event) {
1386                hid_err(hdev, "device has no listeners, quitting\n");
1387                return -ENODEV;
1388        }
1389
1390        if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1391                        (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1392                hdev->ff_init(hdev);
1393
1394        len = 0;
1395        if (hdev->claimed & HID_CLAIMED_INPUT)
1396                len += sprintf(buf + len, "input");
1397        if (hdev->claimed & HID_CLAIMED_HIDDEV)
1398                len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1399                                hdev->minor);
1400        if (hdev->claimed & HID_CLAIMED_HIDRAW)
1401                len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1402                                ((struct hidraw *)hdev->hidraw)->minor);
1403
1404        type = "Device";
1405        for (i = 0; i < hdev->maxcollection; i++) {
1406                struct hid_collection *col = &hdev->collection[i];
1407                if (col->type == HID_COLLECTION_APPLICATION &&
1408                   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1409                   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1410                        type = types[col->usage & 0xffff];
1411                        break;
1412                }
1413        }
1414
1415        switch (hdev->bus) {
1416        case BUS_USB:
1417                bus = "USB";
1418                break;
1419        case BUS_BLUETOOTH:
1420                bus = "BLUETOOTH";
1421                break;
1422        default:
1423                bus = "<UNKNOWN>";
1424        }
1425
1426        ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1427        if (ret)
1428                hid_warn(hdev,
1429                         "can't create sysfs report descriptor attribute err: %d\n", ret);
1430
1431        hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1432                 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1433                 type, hdev->name, hdev->phys);
1434
1435        return 0;
1436}
1437EXPORT_SYMBOL_GPL(hid_connect);
1438
1439void hid_disconnect(struct hid_device *hdev)
1440{
1441        device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1442        if (hdev->claimed & HID_CLAIMED_INPUT)
1443                hidinput_disconnect(hdev);
1444        if (hdev->claimed & HID_CLAIMED_HIDDEV)
1445                hdev->hiddev_disconnect(hdev);
1446        if (hdev->claimed & HID_CLAIMED_HIDRAW)
1447                hidraw_disconnect(hdev);
1448}
1449EXPORT_SYMBOL_GPL(hid_disconnect);
1450
1451/* a list of devices for which there is a specialized driver on HID bus */
1452static const struct hid_device_id hid_have_special_driver[] = {
1453        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1454        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1455        { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1456        { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1457        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
1458        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1459        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1460        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1461        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1462        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1463        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1464        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1465        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1466        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1467        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1468        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1469        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1470        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1471        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1472        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1473        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1474        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1475        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1476        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1477        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1478        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1479        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1480        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1481        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1482        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1483        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1484        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1485        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1486        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1487        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1488        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1489        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1490        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1491        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1492        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1493        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1494        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1495        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1496        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1497        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1498        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1499        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1500        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1501        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1502        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1503        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1504        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1505        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1506        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1507        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1508        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1509        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1510        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1511        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1512        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1513        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1514        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1515        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1516        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1517        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1518        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1519        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1520        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1521        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1522        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1523        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1524        { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1525        { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1526        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1527        { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1528        { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1529        { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1530        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1531        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1532        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1533        { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1534        { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1535        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1536        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1537        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1538        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1539        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1540        { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1541        { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1542        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1543        { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1544        { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1545        { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1546        { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1547        { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1548        { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1549        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1550        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1551        { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1552        { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1553        { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1554        { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1555        { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1556        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1557        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1558        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1559        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1560        { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1561        { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1562#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1563        { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1564#endif
1565        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1566        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1567        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1568        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1569        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1570        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1571        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1572        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1573        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1574        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1575        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1576        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1577        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1578        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1579        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1580        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1581        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1582        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1583        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1584        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1585        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1586        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1587        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1588        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1589#if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1590        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1591        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1592#endif
1593        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1594        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1595        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1596        { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1597        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1598        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1599        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1600        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1601        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1602        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1603        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1604        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1605        { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1606        { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1607        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1608        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1609        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1610        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1611        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1612        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1613        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1614        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1615        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1616        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1617        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1618        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1619        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1620        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1621        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1622        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1623        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1624        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1625        { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1626        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1627        { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1628        { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1629        { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1630        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1631        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1632        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1633        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1634        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1635        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1636        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1637        { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1638        { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1639        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1640        { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1641        { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1642        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1643        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1644        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1645        { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1646        { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1647        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1648        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1649        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1650        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1651        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1652        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1653        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1654        { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1655        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1656        { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1657        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1658        { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1659        { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1660        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1661        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1662        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1663        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1664        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1665        { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1666        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1667        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1668        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1669        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1670        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1671        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1672        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1673        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1674        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1675        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1676        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1677        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1678        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1679        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1680        { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1681        { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1682        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1683        { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1684        { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1685
1686        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1687        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1688        { }
1689};
1690
1691struct hid_dynid {
1692        struct list_head list;
1693        struct hid_device_id id;
1694};
1695
1696/**
1697 * store_new_id - add a new HID device ID to this driver and re-probe devices
1698 * @driver: target device driver
1699 * @buf: buffer for scanning device ID data
1700 * @count: input size
1701 *
1702 * Adds a new dynamic hid device ID to this driver,
1703 * and causes the driver to probe for all devices again.
1704 */
1705static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1706                size_t count)
1707{
1708        struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1709        struct hid_dynid *dynid;
1710        __u32 bus, vendor, product;
1711        unsigned long driver_data = 0;
1712        int ret;
1713
1714        ret = sscanf(buf, "%x %x %x %lx",
1715                        &bus, &vendor, &product, &driver_data);
1716        if (ret < 3)
1717                return -EINVAL;
1718
1719        dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1720        if (!dynid)
1721                return -ENOMEM;
1722
1723        dynid->id.bus = bus;
1724        dynid->id.group = HID_GROUP_ANY;
1725        dynid->id.vendor = vendor;
1726        dynid->id.product = product;
1727        dynid->id.driver_data = driver_data;
1728
1729        spin_lock(&hdrv->dyn_lock);
1730        list_add_tail(&dynid->list, &hdrv->dyn_list);
1731        spin_unlock(&hdrv->dyn_lock);
1732
1733        ret = driver_attach(&hdrv->driver);
1734
1735        return ret ? : count;
1736}
1737static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1738
1739static void hid_free_dynids(struct hid_driver *hdrv)
1740{
1741        struct hid_dynid *dynid, *n;
1742
1743        spin_lock(&hdrv->dyn_lock);
1744        list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1745                list_del(&dynid->list);
1746                kfree(dynid);
1747        }
1748        spin_unlock(&hdrv->dyn_lock);
1749}
1750
1751static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1752                struct hid_driver *hdrv)
1753{
1754        struct hid_dynid *dynid;
1755
1756        spin_lock(&hdrv->dyn_lock);
1757        list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1758                if (hid_match_one_id(hdev, &dynid->id)) {
1759                        spin_unlock(&hdrv->dyn_lock);
1760                        return &dynid->id;
1761                }
1762        }
1763        spin_unlock(&hdrv->dyn_lock);
1764
1765        return hid_match_id(hdev, hdrv->id_table);
1766}
1767
1768static int hid_bus_match(struct device *dev, struct device_driver *drv)
1769{
1770        struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1771        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1772
1773        return hid_match_device(hdev, hdrv) != NULL;
1774}
1775
1776static int hid_device_probe(struct device *dev)
1777{
1778        struct hid_driver *hdrv = container_of(dev->driver,
1779                        struct hid_driver, driver);
1780        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1781        const struct hid_device_id *id;
1782        int ret = 0;
1783
1784        if (down_interruptible(&hdev->driver_lock))
1785                return -EINTR;
1786
1787        if (!hdev->driver) {
1788                id = hid_match_device(hdev, hdrv);
1789                if (id == NULL) {
1790                        ret = -ENODEV;
1791                        goto unlock;
1792                }
1793
1794                hdev->driver = hdrv;
1795                if (hdrv->probe) {
1796                        ret = hdrv->probe(hdev, id);
1797                } else { /* default probe */
1798                        ret = hid_open_report(hdev);
1799                        if (!ret)
1800                                ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
1801                }
1802                if (ret) {
1803                        hid_close_report(hdev);
1804                        hdev->driver = NULL;
1805                }
1806        }
1807unlock:
1808        up(&hdev->driver_lock);
1809        return ret;
1810}
1811
1812static int hid_device_remove(struct device *dev)
1813{
1814        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1815        struct hid_driver *hdrv;
1816
1817        if (down_interruptible(&hdev->driver_lock))
1818                return -EINTR;
1819
1820        hdrv = hdev->driver;
1821        if (hdrv) {
1822                if (hdrv->remove)
1823                        hdrv->remove(hdev);
1824                else /* default remove */
1825                        hid_hw_stop(hdev);
1826                hid_close_report(hdev);
1827                hdev->driver = NULL;
1828        }
1829
1830        up(&hdev->driver_lock);
1831        return 0;
1832}
1833
1834static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
1835                             char *buf)
1836{
1837        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1838        int len;
1839
1840        len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
1841                       hdev->bus, hdev->group, hdev->vendor, hdev->product);
1842
1843        return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
1844}
1845
1846static struct device_attribute hid_dev_attrs[] = {
1847        __ATTR_RO(modalias),
1848        __ATTR_NULL,
1849};
1850
1851static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
1852{
1853        struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1854
1855        if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
1856                        hdev->bus, hdev->vendor, hdev->product))
1857                return -ENOMEM;
1858
1859        if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
1860                return -ENOMEM;
1861
1862        if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
1863                return -ENOMEM;
1864
1865        if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
1866                return -ENOMEM;
1867
1868        if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
1869                           hdev->bus, hdev->group, hdev->vendor, hdev->product))
1870                return -ENOMEM;
1871
1872        return 0;
1873}
1874
1875static struct bus_type hid_bus_type = {
1876        .name           = "hid",
1877        .dev_attrs      = hid_dev_attrs,
1878        .match          = hid_bus_match,
1879        .probe          = hid_device_probe,
1880        .remove         = hid_device_remove,
1881        .uevent         = hid_uevent,
1882};
1883
1884/* a list of devices that shouldn't be handled by HID core at all */
1885static const struct hid_device_id hid_ignore_list[] = {
1886        { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
1887        { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
1888        { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
1889        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
1890        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
1891        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
1892        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
1893        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
1894        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
1895        { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
1896        { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
1897        { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
1898        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
1899        { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
1900        { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
1901        { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
1902        { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
1903        { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
1904        { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
1905        { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
1906        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
1907        { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
1908        { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
1909        { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
1910        { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
1911        { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
1912        { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
1913        { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
1914        { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
1915        { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
1916        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
1917        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
1918        { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
1919        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
1920        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
1921        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
1922        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
1923        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
1924        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
1925        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
1926        { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
1927        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
1928        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
1929        { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
1930        { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
1931        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
1932        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
1933        { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
1934        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
1935        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
1936        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
1937        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
1938        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
1939        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
1940        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
1941        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
1942        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
1943        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
1944        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
1945        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
1946        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
1947        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
1948        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
1949        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
1950        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
1951        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
1952        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
1953        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
1954        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
1955        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
1956        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
1957        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
1958        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
1959        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
1960        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
1961        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
1962        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
1963        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
1964        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
1965        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
1966        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
1967        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
1968        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
1969        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
1970        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
1971        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
1972        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
1973        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
1974        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
1975        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
1976        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
1977        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
1978        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
1979        { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
1980        { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
1981        { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
1982        { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
1983        { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
1984        { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
1985        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
1986        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
1987        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
1988        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
1989        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
1990        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
1991        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
1992        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
1993        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
1994        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
1995        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
1996        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
1997        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
1998        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
1999        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2000        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2001        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2002        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2003        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2004        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2005        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2006        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2007        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2008        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2009        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2010        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2011        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2012        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2013        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2014        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2015        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2016        { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2017        { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2018        { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2019        { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2020        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2021        { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2022        { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2023        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2024        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2025        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2026        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2027        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2028        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2029        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2030        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2031        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2032        { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2033        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2034        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2035        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2036        { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2037        { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2038        { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2039#if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2040        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2041        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2042        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2043        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2044        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2045        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2046        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2047        { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2048#endif
2049        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2050        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2051        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2052        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2053        { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2054        { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2055        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2056        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2057        { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2058        { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2059        { }
2060};
2061
2062/**
2063 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2064 *
2065 * There are composite devices for which we want to ignore only a certain
2066 * interface. This is a list of devices for which only the mouse interface will
2067 * be ignored. This allows a dedicated driver to take care of the interface.
2068 */
2069static const struct hid_device_id hid_mouse_ignore_list[] = {
2070        /* appletouch driver */
2071        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2072        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2073        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2074        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2075        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2076        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2077        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2078        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2079        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2080        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2081        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2082        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2083        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2084        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2085        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2086        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2087        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2088        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2089        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2090        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2091        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2092        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2093        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2094        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2095        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2096        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2097        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2098        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2099        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2100        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2101        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2102        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2103        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2104        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2105        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2106        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2107        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2108        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2109        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2110        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2111        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2112        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2113        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2114        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2115        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2116        { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2117        { }
2118};
2119
2120static bool hid_ignore(struct hid_device *hdev)
2121{
2122        switch (hdev->vendor) {
2123        case USB_VENDOR_ID_CODEMERCS:
2124                /* ignore all Code Mercenaries IOWarrior devices */
2125                if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2126                                hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2127                        return true;
2128                break;
2129        case USB_VENDOR_ID_LOGITECH:
2130                if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2131                                hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2132                        return true;
2133                /*
2134                 * The Keene FM transmitter USB device has the same USB ID as
2135                 * the Logitech AudioHub Speaker, but it should ignore the hid.
2136                 * Check if the name is that of the Keene device.
2137                 * For reference: the name of the AudioHub is
2138                 * "HOLTEK  AudioHub Speaker".
2139                 */
2140                if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2141                        !strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
2142                                return true;
2143                break;
2144        case USB_VENDOR_ID_SOUNDGRAPH:
2145                if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2146                    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2147                        return true;
2148                break;
2149        case USB_VENDOR_ID_HANWANG:
2150                if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2151                    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2152                        return true;
2153                break;
2154        case USB_VENDOR_ID_JESS:
2155                if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2156                                hdev->type == HID_TYPE_USBNONE)
2157                        return true;
2158        break;
2159        }
2160
2161        if (hdev->type == HID_TYPE_USBMOUSE &&
2162                        hid_match_id(hdev, hid_mouse_ignore_list))
2163                return true;
2164
2165        return !!hid_match_id(hdev, hid_ignore_list);
2166}
2167
2168int hid_add_device(struct hid_device *hdev)
2169{
2170        static atomic_t id = ATOMIC_INIT(0);
2171        int ret;
2172
2173        if (WARN_ON(hdev->status & HID_STAT_ADDED))
2174                return -EBUSY;
2175
2176        /* we need to kill them here, otherwise they will stay allocated to
2177         * wait for coming driver */
2178        if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
2179            && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
2180                return -ENODEV;
2181
2182        /*
2183         * Read the device report descriptor once and use as template
2184         * for the driver-specific modifications.
2185         */
2186        ret = hdev->ll_driver->parse(hdev);
2187        if (ret)
2188                return ret;
2189        if (!hdev->dev_rdesc)
2190                return -ENODEV;
2191
2192        /*
2193         * Scan generic devices for group information
2194         */
2195        if (hid_ignore_special_drivers ||
2196            !hid_match_id(hdev, hid_have_special_driver)) {
2197                ret = hid_scan_report(hdev);
2198                if (ret)
2199                        hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2200        }
2201
2202        /* XXX hack, any other cleaner solution after the driver core
2203         * is converted to allow more than 20 bytes as the device name? */
2204        dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2205                     hdev->vendor, hdev->product, atomic_inc_return(&id));
2206
2207        hid_debug_register(hdev, dev_name(&hdev->dev));
2208        ret = device_add(&hdev->dev);
2209        if (!ret)
2210                hdev->status |= HID_STAT_ADDED;
2211        else
2212                hid_debug_unregister(hdev);
2213
2214        return ret;
2215}
2216EXPORT_SYMBOL_GPL(hid_add_device);
2217
2218/**
2219 * hid_allocate_device - allocate new hid device descriptor
2220 *
2221 * Allocate and initialize hid device, so that hid_destroy_device might be
2222 * used to free it.
2223 *
2224 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2225 * error value.
2226 */
2227struct hid_device *hid_allocate_device(void)
2228{
2229        struct hid_device *hdev;
2230        int ret = -ENOMEM;
2231
2232        hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2233        if (hdev == NULL)
2234                return ERR_PTR(ret);
2235
2236        device_initialize(&hdev->dev);
2237        hdev->dev.release = hid_device_release;
2238        hdev->dev.bus = &hid_bus_type;
2239
2240        hid_close_report(hdev);
2241
2242        init_waitqueue_head(&hdev->debug_wait);
2243        INIT_LIST_HEAD(&hdev->debug_list);
2244        sema_init(&hdev->driver_lock, 1);
2245
2246        return hdev;
2247}
2248EXPORT_SYMBOL_GPL(hid_allocate_device);
2249
2250static void hid_remove_device(struct hid_device *hdev)
2251{
2252        if (hdev->status & HID_STAT_ADDED) {
2253                device_del(&hdev->dev);
2254                hid_debug_unregister(hdev);
2255                hdev->status &= ~HID_STAT_ADDED;
2256        }
2257        kfree(hdev->dev_rdesc);
2258        hdev->dev_rdesc = NULL;
2259        hdev->dev_rsize = 0;
2260}
2261
2262/**
2263 * hid_destroy_device - free previously allocated device
2264 *
2265 * @hdev: hid device
2266 *
2267 * If you allocate hid_device through hid_allocate_device, you should ever
2268 * free by this function.
2269 */
2270void hid_destroy_device(struct hid_device *hdev)
2271{
2272        hid_remove_device(hdev);
2273        put_device(&hdev->dev);
2274}
2275EXPORT_SYMBOL_GPL(hid_destroy_device);
2276
2277int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2278                const char *mod_name)
2279{
2280        int ret;
2281
2282        hdrv->driver.name = hdrv->name;
2283        hdrv->driver.bus = &hid_bus_type;
2284        hdrv->driver.owner = owner;
2285        hdrv->driver.mod_name = mod_name;
2286
2287        INIT_LIST_HEAD(&hdrv->dyn_list);
2288        spin_lock_init(&hdrv->dyn_lock);
2289
2290        ret = driver_register(&hdrv->driver);
2291        if (ret)
2292                return ret;
2293
2294        ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2295        if (ret)
2296                driver_unregister(&hdrv->driver);
2297
2298        return ret;
2299}
2300EXPORT_SYMBOL_GPL(__hid_register_driver);
2301
2302void hid_unregister_driver(struct hid_driver *hdrv)
2303{
2304        driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2305        driver_unregister(&hdrv->driver);
2306        hid_free_dynids(hdrv);
2307}
2308EXPORT_SYMBOL_GPL(hid_unregister_driver);
2309
2310int hid_check_keys_pressed(struct hid_device *hid)
2311{
2312        struct hid_input *hidinput;
2313        int i;
2314
2315        if (!(hid->claimed & HID_CLAIMED_INPUT))
2316                return 0;
2317
2318        list_for_each_entry(hidinput, &hid->inputs, list) {
2319                for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2320                        if (hidinput->input->key[i])
2321                                return 1;
2322        }
2323
2324        return 0;
2325}
2326
2327EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2328
2329static int __init hid_init(void)
2330{
2331        int ret;
2332
2333        if (hid_debug)
2334                pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2335                        "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2336
2337        ret = bus_register(&hid_bus_type);
2338        if (ret) {
2339                pr_err("can't register hid bus\n");
2340                goto err;
2341        }
2342
2343        ret = hidraw_init();
2344        if (ret)
2345                goto err_bus;
2346
2347        hid_debug_init();
2348
2349        return 0;
2350err_bus:
2351        bus_unregister(&hid_bus_type);
2352err:
2353        return ret;
2354}
2355
2356static void __exit hid_exit(void)
2357{
2358        hid_debug_exit();
2359        hidraw_exit();
2360        bus_unregister(&hid_bus_type);
2361}
2362
2363module_init(hid_init);
2364module_exit(hid_exit);
2365
2366MODULE_AUTHOR("Andreas Gal");
2367MODULE_AUTHOR("Vojtech Pavlik");
2368MODULE_AUTHOR("Jiri Kosina");
2369MODULE_LICENSE(DRIVER_LICENSE);
2370
2371
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