hid-core.c revision 4fa5a7f76cc7b6ac87f57741edd2b124851d119f
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 (id >= HID_MAX_IDS) 67 return NULL; 68 if (report_enum->report_id_hash[id]) 69 return report_enum->report_id_hash[id]; 70 71 report = kzalloc(sizeof(struct hid_report), GFP_KERNEL); 72 if (!report) 73 return NULL; 74 75 if (id != 0) 76 report_enum->numbered = 1; 77 78 report->id = id; 79 report->type = type; 80 report->size = 0; 81 report->device = device; 82 report_enum->report_id_hash[id] = report; 83 84 list_add_tail(&report->list, &report_enum->report_list); 85 86 return report; 87} 88EXPORT_SYMBOL_GPL(hid_register_report); 89 90/* 91 * Register a new field for this report. 92 */ 93 94static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) 95{ 96 struct hid_field *field; 97 98 if (report->maxfield == HID_MAX_FIELDS) { 99 hid_err(report->device, "too many fields in report\n"); 100 return NULL; 101 } 102 103 field = kzalloc((sizeof(struct hid_field) + 104 usages * sizeof(struct hid_usage) + 105 values * sizeof(unsigned)), GFP_KERNEL); 106 if (!field) 107 return NULL; 108 109 field->index = report->maxfield++; 110 report->field[field->index] = field; 111 field->usage = (struct hid_usage *)(field + 1); 112 field->value = (s32 *)(field->usage + usages); 113 field->report = report; 114 115 return field; 116} 117 118/* 119 * Open a collection. The type/usage is pushed on the stack. 120 */ 121 122static int open_collection(struct hid_parser *parser, unsigned type) 123{ 124 struct hid_collection *collection; 125 unsigned usage; 126 127 usage = parser->local.usage[0]; 128 129 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { 130 hid_err(parser->device, "collection stack overflow\n"); 131 return -EINVAL; 132 } 133 134 if (parser->device->maxcollection == parser->device->collection_size) { 135 collection = kmalloc(sizeof(struct hid_collection) * 136 parser->device->collection_size * 2, GFP_KERNEL); 137 if (collection == NULL) { 138 hid_err(parser->device, "failed to reallocate collection array\n"); 139 return -ENOMEM; 140 } 141 memcpy(collection, parser->device->collection, 142 sizeof(struct hid_collection) * 143 parser->device->collection_size); 144 memset(collection + parser->device->collection_size, 0, 145 sizeof(struct hid_collection) * 146 parser->device->collection_size); 147 kfree(parser->device->collection); 148 parser->device->collection = collection; 149 parser->device->collection_size *= 2; 150 } 151 152 parser->collection_stack[parser->collection_stack_ptr++] = 153 parser->device->maxcollection; 154 155 collection = parser->device->collection + 156 parser->device->maxcollection++; 157 collection->type = type; 158 collection->usage = usage; 159 collection->level = parser->collection_stack_ptr - 1; 160 161 if (type == HID_COLLECTION_APPLICATION) 162 parser->device->maxapplication++; 163 164 return 0; 165} 166 167/* 168 * Close a collection. 169 */ 170 171static int close_collection(struct hid_parser *parser) 172{ 173 if (!parser->collection_stack_ptr) { 174 hid_err(parser->device, "collection stack underflow\n"); 175 return -EINVAL; 176 } 177 parser->collection_stack_ptr--; 178 return 0; 179} 180 181/* 182 * Climb up the stack, search for the specified collection type 183 * and return the usage. 184 */ 185 186static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) 187{ 188 struct hid_collection *collection = parser->device->collection; 189 int n; 190 191 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { 192 unsigned index = parser->collection_stack[n]; 193 if (collection[index].type == type) 194 return collection[index].usage; 195 } 196 return 0; /* we know nothing about this usage type */ 197} 198 199/* 200 * Add a usage to the temporary parser table. 201 */ 202 203static int hid_add_usage(struct hid_parser *parser, unsigned usage) 204{ 205 if (parser->local.usage_index >= HID_MAX_USAGES) { 206 hid_err(parser->device, "usage index exceeded\n"); 207 return -1; 208 } 209 parser->local.usage[parser->local.usage_index] = usage; 210 parser->local.collection_index[parser->local.usage_index] = 211 parser->collection_stack_ptr ? 212 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; 213 parser->local.usage_index++; 214 return 0; 215} 216 217/* 218 * Register a new field for this report. 219 */ 220 221static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) 222{ 223 struct hid_report *report; 224 struct hid_field *field; 225 unsigned usages; 226 unsigned offset; 227 unsigned i; 228 229 report = hid_register_report(parser->device, report_type, parser->global.report_id); 230 if (!report) { 231 hid_err(parser->device, "hid_register_report failed\n"); 232 return -1; 233 } 234 235 /* Handle both signed and unsigned cases properly */ 236 if ((parser->global.logical_minimum < 0 && 237 parser->global.logical_maximum < 238 parser->global.logical_minimum) || 239 (parser->global.logical_minimum >= 0 && 240 (__u32)parser->global.logical_maximum < 241 (__u32)parser->global.logical_minimum)) { 242 dbg_hid("logical range invalid 0x%x 0x%x\n", 243 parser->global.logical_minimum, 244 parser->global.logical_maximum); 245 return -1; 246 } 247 248 offset = report->size; 249 report->size += parser->global.report_size * parser->global.report_count; 250 251 if (!parser->local.usage_index) /* Ignore padding fields */ 252 return 0; 253 254 usages = max_t(unsigned, parser->local.usage_index, 255 parser->global.report_count); 256 257 field = hid_register_field(report, usages, parser->global.report_count); 258 if (!field) 259 return 0; 260 261 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); 262 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); 263 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); 264 265 for (i = 0; i < usages; i++) { 266 unsigned j = i; 267 /* Duplicate the last usage we parsed if we have excess values */ 268 if (i >= parser->local.usage_index) 269 j = parser->local.usage_index - 1; 270 field->usage[i].hid = parser->local.usage[j]; 271 field->usage[i].collection_index = 272 parser->local.collection_index[j]; 273 field->usage[i].usage_index = i; 274 } 275 276 field->maxusage = usages; 277 field->flags = flags; 278 field->report_offset = offset; 279 field->report_type = report_type; 280 field->report_size = parser->global.report_size; 281 field->report_count = parser->global.report_count; 282 field->logical_minimum = parser->global.logical_minimum; 283 field->logical_maximum = parser->global.logical_maximum; 284 field->physical_minimum = parser->global.physical_minimum; 285 field->physical_maximum = parser->global.physical_maximum; 286 field->unit_exponent = parser->global.unit_exponent; 287 field->unit = parser->global.unit; 288 289 return 0; 290} 291 292/* 293 * Read data value from item. 294 */ 295 296static u32 item_udata(struct hid_item *item) 297{ 298 switch (item->size) { 299 case 1: return item->data.u8; 300 case 2: return item->data.u16; 301 case 4: return item->data.u32; 302 } 303 return 0; 304} 305 306static s32 item_sdata(struct hid_item *item) 307{ 308 switch (item->size) { 309 case 1: return item->data.s8; 310 case 2: return item->data.s16; 311 case 4: return item->data.s32; 312 } 313 return 0; 314} 315 316/* 317 * Process a global item. 318 */ 319 320static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) 321{ 322 __s32 raw_value; 323 switch (item->tag) { 324 case HID_GLOBAL_ITEM_TAG_PUSH: 325 326 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { 327 hid_err(parser->device, "global environment stack overflow\n"); 328 return -1; 329 } 330 331 memcpy(parser->global_stack + parser->global_stack_ptr++, 332 &parser->global, sizeof(struct hid_global)); 333 return 0; 334 335 case HID_GLOBAL_ITEM_TAG_POP: 336 337 if (!parser->global_stack_ptr) { 338 hid_err(parser->device, "global environment stack underflow\n"); 339 return -1; 340 } 341 342 memcpy(&parser->global, parser->global_stack + 343 --parser->global_stack_ptr, sizeof(struct hid_global)); 344 return 0; 345 346 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: 347 parser->global.usage_page = item_udata(item); 348 return 0; 349 350 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: 351 parser->global.logical_minimum = item_sdata(item); 352 return 0; 353 354 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: 355 if (parser->global.logical_minimum < 0) 356 parser->global.logical_maximum = item_sdata(item); 357 else 358 parser->global.logical_maximum = item_udata(item); 359 return 0; 360 361 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: 362 parser->global.physical_minimum = item_sdata(item); 363 return 0; 364 365 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: 366 if (parser->global.physical_minimum < 0) 367 parser->global.physical_maximum = item_sdata(item); 368 else 369 parser->global.physical_maximum = item_udata(item); 370 return 0; 371 372 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: 373 /* Many devices provide unit exponent as a two's complement 374 * nibble due to the common misunderstanding of HID 375 * specification 1.11, 6.2.2.7 Global Items. Attempt to handle 376 * both this and the standard encoding. */ 377 raw_value = item_sdata(item); 378 if (!(raw_value & 0xfffffff0)) 379 parser->global.unit_exponent = hid_snto32(raw_value, 4); 380 else 381 parser->global.unit_exponent = raw_value; 382 return 0; 383 384 case HID_GLOBAL_ITEM_TAG_UNIT: 385 parser->global.unit = item_udata(item); 386 return 0; 387 388 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: 389 parser->global.report_size = item_udata(item); 390 if (parser->global.report_size > 128) { 391 hid_err(parser->device, "invalid report_size %d\n", 392 parser->global.report_size); 393 return -1; 394 } 395 return 0; 396 397 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: 398 parser->global.report_count = item_udata(item); 399 if (parser->global.report_count > HID_MAX_USAGES) { 400 hid_err(parser->device, "invalid report_count %d\n", 401 parser->global.report_count); 402 return -1; 403 } 404 return 0; 405 406 case HID_GLOBAL_ITEM_TAG_REPORT_ID: 407 parser->global.report_id = item_udata(item); 408 if (parser->global.report_id == 0 || 409 parser->global.report_id >= HID_MAX_IDS) { 410 hid_err(parser->device, "report_id %u is invalid\n", 411 parser->global.report_id); 412 return -1; 413 } 414 return 0; 415 416 default: 417 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag); 418 return -1; 419 } 420} 421 422/* 423 * Process a local item. 424 */ 425 426static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) 427{ 428 __u32 data; 429 unsigned n; 430 431 data = item_udata(item); 432 433 switch (item->tag) { 434 case HID_LOCAL_ITEM_TAG_DELIMITER: 435 436 if (data) { 437 /* 438 * We treat items before the first delimiter 439 * as global to all usage sets (branch 0). 440 * In the moment we process only these global 441 * items and the first delimiter set. 442 */ 443 if (parser->local.delimiter_depth != 0) { 444 hid_err(parser->device, "nested delimiters\n"); 445 return -1; 446 } 447 parser->local.delimiter_depth++; 448 parser->local.delimiter_branch++; 449 } else { 450 if (parser->local.delimiter_depth < 1) { 451 hid_err(parser->device, "bogus close delimiter\n"); 452 return -1; 453 } 454 parser->local.delimiter_depth--; 455 } 456 return 0; 457 458 case HID_LOCAL_ITEM_TAG_USAGE: 459 460 if (parser->local.delimiter_branch > 1) { 461 dbg_hid("alternative usage ignored\n"); 462 return 0; 463 } 464 465 if (item->size <= 2) 466 data = (parser->global.usage_page << 16) + data; 467 468 return hid_add_usage(parser, data); 469 470 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: 471 472 if (parser->local.delimiter_branch > 1) { 473 dbg_hid("alternative usage ignored\n"); 474 return 0; 475 } 476 477 if (item->size <= 2) 478 data = (parser->global.usage_page << 16) + data; 479 480 parser->local.usage_minimum = data; 481 return 0; 482 483 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: 484 485 if (parser->local.delimiter_branch > 1) { 486 dbg_hid("alternative usage ignored\n"); 487 return 0; 488 } 489 490 if (item->size <= 2) 491 data = (parser->global.usage_page << 16) + data; 492 493 for (n = parser->local.usage_minimum; n <= data; n++) 494 if (hid_add_usage(parser, n)) { 495 dbg_hid("hid_add_usage failed\n"); 496 return -1; 497 } 498 return 0; 499 500 default: 501 502 dbg_hid("unknown local item tag 0x%x\n", item->tag); 503 return 0; 504 } 505 return 0; 506} 507 508/* 509 * Process a main item. 510 */ 511 512static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) 513{ 514 __u32 data; 515 int ret; 516 517 data = item_udata(item); 518 519 switch (item->tag) { 520 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 521 ret = open_collection(parser, data & 0xff); 522 break; 523 case HID_MAIN_ITEM_TAG_END_COLLECTION: 524 ret = close_collection(parser); 525 break; 526 case HID_MAIN_ITEM_TAG_INPUT: 527 ret = hid_add_field(parser, HID_INPUT_REPORT, data); 528 break; 529 case HID_MAIN_ITEM_TAG_OUTPUT: 530 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); 531 break; 532 case HID_MAIN_ITEM_TAG_FEATURE: 533 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); 534 break; 535 default: 536 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag); 537 ret = 0; 538 } 539 540 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ 541 542 return ret; 543} 544 545/* 546 * Process a reserved item. 547 */ 548 549static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) 550{ 551 dbg_hid("reserved item type, tag 0x%x\n", item->tag); 552 return 0; 553} 554 555/* 556 * Free a report and all registered fields. The field->usage and 557 * field->value table's are allocated behind the field, so we need 558 * only to free(field) itself. 559 */ 560 561static void hid_free_report(struct hid_report *report) 562{ 563 unsigned n; 564 565 for (n = 0; n < report->maxfield; n++) 566 kfree(report->field[n]); 567 kfree(report); 568} 569 570/* 571 * Close report. This function returns the device 572 * state to the point prior to hid_open_report(). 573 */ 574static void hid_close_report(struct hid_device *device) 575{ 576 unsigned i, j; 577 578 for (i = 0; i < HID_REPORT_TYPES; i++) { 579 struct hid_report_enum *report_enum = device->report_enum + i; 580 581 for (j = 0; j < HID_MAX_IDS; j++) { 582 struct hid_report *report = report_enum->report_id_hash[j]; 583 if (report) 584 hid_free_report(report); 585 } 586 memset(report_enum, 0, sizeof(*report_enum)); 587 INIT_LIST_HEAD(&report_enum->report_list); 588 } 589 590 kfree(device->rdesc); 591 device->rdesc = NULL; 592 device->rsize = 0; 593 594 kfree(device->collection); 595 device->collection = NULL; 596 device->collection_size = 0; 597 device->maxcollection = 0; 598 device->maxapplication = 0; 599 600 device->status &= ~HID_STAT_PARSED; 601} 602 603/* 604 * Free a device structure, all reports, and all fields. 605 */ 606 607static void hid_device_release(struct device *dev) 608{ 609 struct hid_device *hid = container_of(dev, struct hid_device, dev); 610 611 hid_close_report(hid); 612 kfree(hid->dev_rdesc); 613 kfree(hid); 614} 615 616/* 617 * Fetch a report description item from the data stream. We support long 618 * items, though they are not used yet. 619 */ 620 621static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) 622{ 623 u8 b; 624 625 if ((end - start) <= 0) 626 return NULL; 627 628 b = *start++; 629 630 item->type = (b >> 2) & 3; 631 item->tag = (b >> 4) & 15; 632 633 if (item->tag == HID_ITEM_TAG_LONG) { 634 635 item->format = HID_ITEM_FORMAT_LONG; 636 637 if ((end - start) < 2) 638 return NULL; 639 640 item->size = *start++; 641 item->tag = *start++; 642 643 if ((end - start) < item->size) 644 return NULL; 645 646 item->data.longdata = start; 647 start += item->size; 648 return start; 649 } 650 651 item->format = HID_ITEM_FORMAT_SHORT; 652 item->size = b & 3; 653 654 switch (item->size) { 655 case 0: 656 return start; 657 658 case 1: 659 if ((end - start) < 1) 660 return NULL; 661 item->data.u8 = *start++; 662 return start; 663 664 case 2: 665 if ((end - start) < 2) 666 return NULL; 667 item->data.u16 = get_unaligned_le16(start); 668 start = (__u8 *)((__le16 *)start + 1); 669 return start; 670 671 case 3: 672 item->size++; 673 if ((end - start) < 4) 674 return NULL; 675 item->data.u32 = get_unaligned_le32(start); 676 start = (__u8 *)((__le32 *)start + 1); 677 return start; 678 } 679 680 return NULL; 681} 682 683static void hid_scan_input_usage(struct hid_parser *parser, u32 usage) 684{ 685 struct hid_device *hid = parser->device; 686 687 if (usage == HID_DG_CONTACTID) 688 hid->group = HID_GROUP_MULTITOUCH; 689} 690 691static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage) 692{ 693 if (usage == 0xff0000c5 && parser->global.report_count == 256 && 694 parser->global.report_size == 8) 695 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; 696} 697 698static void hid_scan_collection(struct hid_parser *parser, unsigned type) 699{ 700 struct hid_device *hid = parser->device; 701 702 if (((parser->global.usage_page << 16) == HID_UP_SENSOR) && 703 type == HID_COLLECTION_PHYSICAL) 704 hid->group = HID_GROUP_SENSOR_HUB; 705} 706 707static int hid_scan_main(struct hid_parser *parser, struct hid_item *item) 708{ 709 __u32 data; 710 int i; 711 712 data = item_udata(item); 713 714 switch (item->tag) { 715 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 716 hid_scan_collection(parser, data & 0xff); 717 break; 718 case HID_MAIN_ITEM_TAG_END_COLLECTION: 719 break; 720 case HID_MAIN_ITEM_TAG_INPUT: 721 for (i = 0; i < parser->local.usage_index; i++) 722 hid_scan_input_usage(parser, parser->local.usage[i]); 723 break; 724 case HID_MAIN_ITEM_TAG_OUTPUT: 725 break; 726 case HID_MAIN_ITEM_TAG_FEATURE: 727 for (i = 0; i < parser->local.usage_index; i++) 728 hid_scan_feature_usage(parser, parser->local.usage[i]); 729 break; 730 } 731 732 /* Reset the local parser environment */ 733 memset(&parser->local, 0, sizeof(parser->local)); 734 735 return 0; 736} 737 738/* 739 * Scan a report descriptor before the device is added to the bus. 740 * Sets device groups and other properties that determine what driver 741 * to load. 742 */ 743static int hid_scan_report(struct hid_device *hid) 744{ 745 struct hid_parser *parser; 746 struct hid_item item; 747 __u8 *start = hid->dev_rdesc; 748 __u8 *end = start + hid->dev_rsize; 749 static int (*dispatch_type[])(struct hid_parser *parser, 750 struct hid_item *item) = { 751 hid_scan_main, 752 hid_parser_global, 753 hid_parser_local, 754 hid_parser_reserved 755 }; 756 757 parser = vzalloc(sizeof(struct hid_parser)); 758 if (!parser) 759 return -ENOMEM; 760 761 parser->device = hid; 762 hid->group = HID_GROUP_GENERIC; 763 764 /* 765 * The parsing is simpler than the one in hid_open_report() as we should 766 * be robust against hid errors. Those errors will be raised by 767 * hid_open_report() anyway. 768 */ 769 while ((start = fetch_item(start, end, &item)) != NULL) 770 dispatch_type[item.type](parser, &item); 771 772 /* 773 * Handle special flags set during scanning. 774 */ 775 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) && 776 (hid->group == HID_GROUP_MULTITOUCH)) 777 hid->group = HID_GROUP_MULTITOUCH_WIN_8; 778 779 vfree(parser); 780 return 0; 781} 782 783/** 784 * hid_parse_report - parse device report 785 * 786 * @device: hid device 787 * @start: report start 788 * @size: report size 789 * 790 * Allocate the device report as read by the bus driver. This function should 791 * only be called from parse() in ll drivers. 792 */ 793int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size) 794{ 795 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL); 796 if (!hid->dev_rdesc) 797 return -ENOMEM; 798 hid->dev_rsize = size; 799 return 0; 800} 801EXPORT_SYMBOL_GPL(hid_parse_report); 802 803static const char * const hid_report_names[] = { 804 "HID_INPUT_REPORT", 805 "HID_OUTPUT_REPORT", 806 "HID_FEATURE_REPORT", 807}; 808/** 809 * hid_validate_values - validate existing device report's value indexes 810 * 811 * @device: hid device 812 * @type: which report type to examine 813 * @id: which report ID to examine (0 for first) 814 * @field_index: which report field to examine 815 * @report_counts: expected number of values 816 * 817 * Validate the number of values in a given field of a given report, after 818 * parsing. 819 */ 820struct hid_report *hid_validate_values(struct hid_device *hid, 821 unsigned int type, unsigned int id, 822 unsigned int field_index, 823 unsigned int report_counts) 824{ 825 struct hid_report *report; 826 827 if (type > HID_FEATURE_REPORT) { 828 hid_err(hid, "invalid HID report type %u\n", type); 829 return NULL; 830 } 831 832 if (id >= HID_MAX_IDS) { 833 hid_err(hid, "invalid HID report id %u\n", id); 834 return NULL; 835 } 836 837 /* 838 * Explicitly not using hid_get_report() here since it depends on 839 * ->numbered being checked, which may not always be the case when 840 * drivers go to access report values. 841 */ 842 report = hid->report_enum[type].report_id_hash[id]; 843 if (!report) { 844 hid_err(hid, "missing %s %u\n", hid_report_names[type], id); 845 return NULL; 846 } 847 if (report->maxfield <= field_index) { 848 hid_err(hid, "not enough fields in %s %u\n", 849 hid_report_names[type], id); 850 return NULL; 851 } 852 if (report->field[field_index]->report_count < report_counts) { 853 hid_err(hid, "not enough values in %s %u field %u\n", 854 hid_report_names[type], id, field_index); 855 return NULL; 856 } 857 return report; 858} 859EXPORT_SYMBOL_GPL(hid_validate_values); 860 861/** 862 * hid_open_report - open a driver-specific device report 863 * 864 * @device: hid device 865 * 866 * Parse a report description into a hid_device structure. Reports are 867 * enumerated, fields are attached to these reports. 868 * 0 returned on success, otherwise nonzero error value. 869 * 870 * This function (or the equivalent hid_parse() macro) should only be 871 * called from probe() in drivers, before starting the device. 872 */ 873int hid_open_report(struct hid_device *device) 874{ 875 struct hid_parser *parser; 876 struct hid_item item; 877 unsigned int size; 878 __u8 *start; 879 __u8 *buf; 880 __u8 *end; 881 int ret; 882 static int (*dispatch_type[])(struct hid_parser *parser, 883 struct hid_item *item) = { 884 hid_parser_main, 885 hid_parser_global, 886 hid_parser_local, 887 hid_parser_reserved 888 }; 889 890 if (WARN_ON(device->status & HID_STAT_PARSED)) 891 return -EBUSY; 892 893 start = device->dev_rdesc; 894 if (WARN_ON(!start)) 895 return -ENODEV; 896 size = device->dev_rsize; 897 898 buf = kmemdup(start, size, GFP_KERNEL); 899 if (buf == NULL) 900 return -ENOMEM; 901 902 if (device->driver->report_fixup) 903 start = device->driver->report_fixup(device, buf, &size); 904 else 905 start = buf; 906 907 start = kmemdup(start, size, GFP_KERNEL); 908 kfree(buf); 909 if (start == NULL) 910 return -ENOMEM; 911 912 device->rdesc = start; 913 device->rsize = size; 914 915 parser = vzalloc(sizeof(struct hid_parser)); 916 if (!parser) { 917 ret = -ENOMEM; 918 goto err; 919 } 920 921 parser->device = device; 922 923 end = start + size; 924 925 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, 926 sizeof(struct hid_collection), GFP_KERNEL); 927 if (!device->collection) { 928 ret = -ENOMEM; 929 goto err; 930 } 931 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS; 932 933 ret = -EINVAL; 934 while ((start = fetch_item(start, end, &item)) != NULL) { 935 936 if (item.format != HID_ITEM_FORMAT_SHORT) { 937 hid_err(device, "unexpected long global item\n"); 938 goto err; 939 } 940 941 if (dispatch_type[item.type](parser, &item)) { 942 hid_err(device, "item %u %u %u %u parsing failed\n", 943 item.format, (unsigned)item.size, 944 (unsigned)item.type, (unsigned)item.tag); 945 goto err; 946 } 947 948 if (start == end) { 949 if (parser->collection_stack_ptr) { 950 hid_err(device, "unbalanced collection at end of report description\n"); 951 goto err; 952 } 953 if (parser->local.delimiter_depth) { 954 hid_err(device, "unbalanced delimiter at end of report description\n"); 955 goto err; 956 } 957 vfree(parser); 958 device->status |= HID_STAT_PARSED; 959 return 0; 960 } 961 } 962 963 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start)); 964err: 965 vfree(parser); 966 hid_close_report(device); 967 return ret; 968} 969EXPORT_SYMBOL_GPL(hid_open_report); 970 971/* 972 * Convert a signed n-bit integer to signed 32-bit integer. Common 973 * cases are done through the compiler, the screwed things has to be 974 * done by hand. 975 */ 976 977static s32 snto32(__u32 value, unsigned n) 978{ 979 switch (n) { 980 case 8: return ((__s8)value); 981 case 16: return ((__s16)value); 982 case 32: return ((__s32)value); 983 } 984 return value & (1 << (n - 1)) ? value | (-1 << n) : value; 985} 986 987s32 hid_snto32(__u32 value, unsigned n) 988{ 989 return snto32(value, n); 990} 991EXPORT_SYMBOL_GPL(hid_snto32); 992 993/* 994 * Convert a signed 32-bit integer to a signed n-bit integer. 995 */ 996 997static u32 s32ton(__s32 value, unsigned n) 998{ 999 s32 a = value >> (n - 1); 1000 if (a && a != -1) 1001 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; 1002 return value & ((1 << n) - 1); 1003} 1004 1005/* 1006 * Extract/implement a data field from/to a little endian report (bit array). 1007 * 1008 * Code sort-of follows HID spec: 1009 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf 1010 * 1011 * While the USB HID spec allows unlimited length bit fields in "report 1012 * descriptors", most devices never use more than 16 bits. 1013 * One model of UPS is claimed to report "LINEV" as a 32-bit field. 1014 * Search linux-kernel and linux-usb-devel archives for "hid-core extract". 1015 */ 1016 1017static __u32 extract(const struct hid_device *hid, __u8 *report, 1018 unsigned offset, unsigned n) 1019{ 1020 u64 x; 1021 1022 if (n > 32) 1023 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n", 1024 n, current->comm); 1025 1026 report += offset >> 3; /* adjust byte index */ 1027 offset &= 7; /* now only need bit offset into one byte */ 1028 x = get_unaligned_le64(report); 1029 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ 1030 return (u32) x; 1031} 1032 1033/* 1034 * "implement" : set bits in a little endian bit stream. 1035 * Same concepts as "extract" (see comments above). 1036 * The data mangled in the bit stream remains in little endian 1037 * order the whole time. It make more sense to talk about 1038 * endianness of register values by considering a register 1039 * a "cached" copy of the little endiad bit stream. 1040 */ 1041static void implement(const struct hid_device *hid, __u8 *report, 1042 unsigned offset, unsigned n, __u32 value) 1043{ 1044 u64 x; 1045 u64 m = (1ULL << n) - 1; 1046 1047 if (n > 32) 1048 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n", 1049 __func__, n, current->comm); 1050 1051 if (value > m) 1052 hid_warn(hid, "%s() called with too large value %d! (%s)\n", 1053 __func__, value, current->comm); 1054 WARN_ON(value > m); 1055 value &= m; 1056 1057 report += offset >> 3; 1058 offset &= 7; 1059 1060 x = get_unaligned_le64(report); 1061 x &= ~(m << offset); 1062 x |= ((u64)value) << offset; 1063 put_unaligned_le64(x, report); 1064} 1065 1066/* 1067 * Search an array for a value. 1068 */ 1069 1070static int search(__s32 *array, __s32 value, unsigned n) 1071{ 1072 while (n--) { 1073 if (*array++ == value) 1074 return 0; 1075 } 1076 return -1; 1077} 1078 1079/** 1080 * hid_match_report - check if driver's raw_event should be called 1081 * 1082 * @hid: hid device 1083 * @report_type: type to match against 1084 * 1085 * compare hid->driver->report_table->report_type to report->type 1086 */ 1087static int hid_match_report(struct hid_device *hid, struct hid_report *report) 1088{ 1089 const struct hid_report_id *id = hid->driver->report_table; 1090 1091 if (!id) /* NULL means all */ 1092 return 1; 1093 1094 for (; id->report_type != HID_TERMINATOR; id++) 1095 if (id->report_type == HID_ANY_ID || 1096 id->report_type == report->type) 1097 return 1; 1098 return 0; 1099} 1100 1101/** 1102 * hid_match_usage - check if driver's event should be called 1103 * 1104 * @hid: hid device 1105 * @usage: usage to match against 1106 * 1107 * compare hid->driver->usage_table->usage_{type,code} to 1108 * usage->usage_{type,code} 1109 */ 1110static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) 1111{ 1112 const struct hid_usage_id *id = hid->driver->usage_table; 1113 1114 if (!id) /* NULL means all */ 1115 return 1; 1116 1117 for (; id->usage_type != HID_ANY_ID - 1; id++) 1118 if ((id->usage_hid == HID_ANY_ID || 1119 id->usage_hid == usage->hid) && 1120 (id->usage_type == HID_ANY_ID || 1121 id->usage_type == usage->type) && 1122 (id->usage_code == HID_ANY_ID || 1123 id->usage_code == usage->code)) 1124 return 1; 1125 return 0; 1126} 1127 1128static void hid_process_event(struct hid_device *hid, struct hid_field *field, 1129 struct hid_usage *usage, __s32 value, int interrupt) 1130{ 1131 struct hid_driver *hdrv = hid->driver; 1132 int ret; 1133 1134 if (!list_empty(&hid->debug_list)) 1135 hid_dump_input(hid, usage, value); 1136 1137 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { 1138 ret = hdrv->event(hid, field, usage, value); 1139 if (ret != 0) { 1140 if (ret < 0) 1141 hid_err(hid, "%s's event failed with %d\n", 1142 hdrv->name, ret); 1143 return; 1144 } 1145 } 1146 1147 if (hid->claimed & HID_CLAIMED_INPUT) 1148 hidinput_hid_event(hid, field, usage, value); 1149 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) 1150 hid->hiddev_hid_event(hid, field, usage, value); 1151} 1152 1153/* 1154 * Analyse a received field, and fetch the data from it. The field 1155 * content is stored for next report processing (we do differential 1156 * reporting to the layer). 1157 */ 1158 1159static void hid_input_field(struct hid_device *hid, struct hid_field *field, 1160 __u8 *data, int interrupt) 1161{ 1162 unsigned n; 1163 unsigned count = field->report_count; 1164 unsigned offset = field->report_offset; 1165 unsigned size = field->report_size; 1166 __s32 min = field->logical_minimum; 1167 __s32 max = field->logical_maximum; 1168 __s32 *value; 1169 1170 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC); 1171 if (!value) 1172 return; 1173 1174 for (n = 0; n < count; n++) { 1175 1176 value[n] = min < 0 ? 1177 snto32(extract(hid, data, offset + n * size, size), 1178 size) : 1179 extract(hid, data, offset + n * size, size); 1180 1181 /* Ignore report if ErrorRollOver */ 1182 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) && 1183 value[n] >= min && value[n] <= max && 1184 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) 1185 goto exit; 1186 } 1187 1188 for (n = 0; n < count; n++) { 1189 1190 if (HID_MAIN_ITEM_VARIABLE & field->flags) { 1191 hid_process_event(hid, field, &field->usage[n], value[n], interrupt); 1192 continue; 1193 } 1194 1195 if (field->value[n] >= min && field->value[n] <= max 1196 && field->usage[field->value[n] - min].hid 1197 && search(value, field->value[n], count)) 1198 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); 1199 1200 if (value[n] >= min && value[n] <= max 1201 && field->usage[value[n] - min].hid 1202 && search(field->value, value[n], count)) 1203 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); 1204 } 1205 1206 memcpy(field->value, value, count * sizeof(__s32)); 1207exit: 1208 kfree(value); 1209} 1210 1211/* 1212 * Output the field into the report. 1213 */ 1214 1215static void hid_output_field(const struct hid_device *hid, 1216 struct hid_field *field, __u8 *data) 1217{ 1218 unsigned count = field->report_count; 1219 unsigned offset = field->report_offset; 1220 unsigned size = field->report_size; 1221 unsigned n; 1222 1223 for (n = 0; n < count; n++) { 1224 if (field->logical_minimum < 0) /* signed values */ 1225 implement(hid, data, offset + n * size, size, 1226 s32ton(field->value[n], size)); 1227 else /* unsigned values */ 1228 implement(hid, data, offset + n * size, size, 1229 field->value[n]); 1230 } 1231} 1232 1233/* 1234 * Create a report. 'data' has to be allocated using 1235 * hid_alloc_report_buf() so that it has proper size. 1236 */ 1237 1238void hid_output_report(struct hid_report *report, __u8 *data) 1239{ 1240 unsigned n; 1241 1242 if (report->id > 0) 1243 *data++ = report->id; 1244 1245 memset(data, 0, ((report->size - 1) >> 3) + 1); 1246 for (n = 0; n < report->maxfield; n++) 1247 hid_output_field(report->device, report->field[n], data); 1248} 1249EXPORT_SYMBOL_GPL(hid_output_report); 1250 1251static int hid_report_len(struct hid_report *report) 1252{ 1253 return ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7; 1254} 1255 1256/* 1257 * Allocator for buffer that is going to be passed to hid_output_report() 1258 */ 1259u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags) 1260{ 1261 /* 1262 * 7 extra bytes are necessary to achieve proper functionality 1263 * of implement() working on 8 byte chunks 1264 */ 1265 1266 int len = hid_report_len(report); 1267 1268 return kmalloc(len, flags); 1269} 1270EXPORT_SYMBOL_GPL(hid_alloc_report_buf); 1271 1272/* 1273 * Set a field value. The report this field belongs to has to be 1274 * created and transferred to the device, to set this value in the 1275 * device. 1276 */ 1277 1278int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) 1279{ 1280 unsigned size; 1281 1282 if (!field) 1283 return -1; 1284 1285 size = field->report_size; 1286 1287 hid_dump_input(field->report->device, field->usage + offset, value); 1288 1289 if (offset >= field->report_count) { 1290 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n", 1291 offset, field->report_count); 1292 return -1; 1293 } 1294 if (field->logical_minimum < 0) { 1295 if (value != snto32(s32ton(value, size), size)) { 1296 hid_err(field->report->device, "value %d is out of range\n", value); 1297 return -1; 1298 } 1299 } 1300 field->value[offset] = value; 1301 return 0; 1302} 1303EXPORT_SYMBOL_GPL(hid_set_field); 1304 1305static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, 1306 const u8 *data) 1307{ 1308 struct hid_report *report; 1309 unsigned int n = 0; /* Normally report number is 0 */ 1310 1311 /* Device uses numbered reports, data[0] is report number */ 1312 if (report_enum->numbered) 1313 n = *data; 1314 1315 report = report_enum->report_id_hash[n]; 1316 if (report == NULL) 1317 dbg_hid("undefined report_id %u received\n", n); 1318 1319 return report; 1320} 1321 1322/* 1323 * Implement a generic .request() callback, using .raw_request() 1324 * DO NOT USE in hid drivers directly, but through hid_hw_request instead. 1325 */ 1326void __hid_request(struct hid_device *hid, struct hid_report *report, 1327 int reqtype) 1328{ 1329 char *buf; 1330 int ret; 1331 int len; 1332 1333 if (!hid->ll_driver->raw_request) 1334 return; 1335 1336 buf = hid_alloc_report_buf(report, GFP_KERNEL); 1337 if (!buf) 1338 return; 1339 1340 len = hid_report_len(report); 1341 1342 if (reqtype == HID_REQ_SET_REPORT) 1343 hid_output_report(report, buf); 1344 1345 ret = hid->ll_driver->raw_request(hid, report->id, buf, len, 1346 report->type, reqtype); 1347 if (ret < 0) { 1348 dbg_hid("unable to complete request: %d\n", ret); 1349 goto out; 1350 } 1351 1352 if (reqtype == HID_REQ_GET_REPORT) 1353 hid_input_report(hid, report->type, buf, ret, 0); 1354 1355out: 1356 kfree(buf); 1357} 1358EXPORT_SYMBOL_GPL(__hid_request); 1359 1360int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, 1361 int interrupt) 1362{ 1363 struct hid_report_enum *report_enum = hid->report_enum + type; 1364 struct hid_report *report; 1365 struct hid_driver *hdrv; 1366 unsigned int a; 1367 int rsize, csize = size; 1368 u8 *cdata = data; 1369 int ret = 0; 1370 1371 report = hid_get_report(report_enum, data); 1372 if (!report) 1373 goto out; 1374 1375 if (report_enum->numbered) { 1376 cdata++; 1377 csize--; 1378 } 1379 1380 rsize = ((report->size - 1) >> 3) + 1; 1381 1382 if (rsize > HID_MAX_BUFFER_SIZE) 1383 rsize = HID_MAX_BUFFER_SIZE; 1384 1385 if (csize < rsize) { 1386 dbg_hid("report %d is too short, (%d < %d)\n", report->id, 1387 csize, rsize); 1388 memset(cdata + csize, 0, rsize - csize); 1389 } 1390 1391 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) 1392 hid->hiddev_report_event(hid, report); 1393 if (hid->claimed & HID_CLAIMED_HIDRAW) { 1394 ret = hidraw_report_event(hid, data, size); 1395 if (ret) 1396 goto out; 1397 } 1398 1399 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) { 1400 for (a = 0; a < report->maxfield; a++) 1401 hid_input_field(hid, report->field[a], cdata, interrupt); 1402 hdrv = hid->driver; 1403 if (hdrv && hdrv->report) 1404 hdrv->report(hid, report); 1405 } 1406 1407 if (hid->claimed & HID_CLAIMED_INPUT) 1408 hidinput_report_event(hid, report); 1409out: 1410 return ret; 1411} 1412EXPORT_SYMBOL_GPL(hid_report_raw_event); 1413 1414/** 1415 * hid_input_report - report data from lower layer (usb, bt...) 1416 * 1417 * @hid: hid device 1418 * @type: HID report type (HID_*_REPORT) 1419 * @data: report contents 1420 * @size: size of data parameter 1421 * @interrupt: distinguish between interrupt and control transfers 1422 * 1423 * This is data entry for lower layers. 1424 */ 1425int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) 1426{ 1427 struct hid_report_enum *report_enum; 1428 struct hid_driver *hdrv; 1429 struct hid_report *report; 1430 int ret = 0; 1431 1432 if (!hid) 1433 return -ENODEV; 1434 1435 if (down_trylock(&hid->driver_input_lock)) 1436 return -EBUSY; 1437 1438 if (!hid->driver) { 1439 ret = -ENODEV; 1440 goto unlock; 1441 } 1442 report_enum = hid->report_enum + type; 1443 hdrv = hid->driver; 1444 1445 if (!size) { 1446 dbg_hid("empty report\n"); 1447 ret = -1; 1448 goto unlock; 1449 } 1450 1451 /* Avoid unnecessary overhead if debugfs is disabled */ 1452 if (!list_empty(&hid->debug_list)) 1453 hid_dump_report(hid, type, data, size); 1454 1455 report = hid_get_report(report_enum, data); 1456 1457 if (!report) { 1458 ret = -1; 1459 goto unlock; 1460 } 1461 1462 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { 1463 ret = hdrv->raw_event(hid, report, data, size); 1464 if (ret < 0) 1465 goto unlock; 1466 } 1467 1468 ret = hid_report_raw_event(hid, type, data, size, interrupt); 1469 1470unlock: 1471 up(&hid->driver_input_lock); 1472 return ret; 1473} 1474EXPORT_SYMBOL_GPL(hid_input_report); 1475 1476static bool hid_match_one_id(struct hid_device *hdev, 1477 const struct hid_device_id *id) 1478{ 1479 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) && 1480 (id->group == HID_GROUP_ANY || id->group == hdev->group) && 1481 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && 1482 (id->product == HID_ANY_ID || id->product == hdev->product); 1483} 1484 1485const struct hid_device_id *hid_match_id(struct hid_device *hdev, 1486 const struct hid_device_id *id) 1487{ 1488 for (; id->bus; id++) 1489 if (hid_match_one_id(hdev, id)) 1490 return id; 1491 1492 return NULL; 1493} 1494 1495static const struct hid_device_id hid_hiddev_list[] = { 1496 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, 1497 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, 1498 { } 1499}; 1500 1501static bool hid_hiddev(struct hid_device *hdev) 1502{ 1503 return !!hid_match_id(hdev, hid_hiddev_list); 1504} 1505 1506 1507static ssize_t 1508read_report_descriptor(struct file *filp, struct kobject *kobj, 1509 struct bin_attribute *attr, 1510 char *buf, loff_t off, size_t count) 1511{ 1512 struct device *dev = container_of(kobj, struct device, kobj); 1513 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1514 1515 if (off >= hdev->rsize) 1516 return 0; 1517 1518 if (off + count > hdev->rsize) 1519 count = hdev->rsize - off; 1520 1521 memcpy(buf, hdev->rdesc + off, count); 1522 1523 return count; 1524} 1525 1526static struct bin_attribute dev_bin_attr_report_desc = { 1527 .attr = { .name = "report_descriptor", .mode = 0444 }, 1528 .read = read_report_descriptor, 1529 .size = HID_MAX_DESCRIPTOR_SIZE, 1530}; 1531 1532int hid_connect(struct hid_device *hdev, unsigned int connect_mask) 1533{ 1534 static const char *types[] = { "Device", "Pointer", "Mouse", "Device", 1535 "Joystick", "Gamepad", "Keyboard", "Keypad", 1536 "Multi-Axis Controller" 1537 }; 1538 const char *type, *bus; 1539 char buf[64]; 1540 unsigned int i; 1541 int len; 1542 int ret; 1543 1544 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE) 1545 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV); 1546 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE) 1547 connect_mask |= HID_CONNECT_HIDINPUT_FORCE; 1548 if (hdev->bus != BUS_USB) 1549 connect_mask &= ~HID_CONNECT_HIDDEV; 1550 if (hid_hiddev(hdev)) 1551 connect_mask |= HID_CONNECT_HIDDEV_FORCE; 1552 1553 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, 1554 connect_mask & HID_CONNECT_HIDINPUT_FORCE)) 1555 hdev->claimed |= HID_CLAIMED_INPUT; 1556 1557 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && 1558 !hdev->hiddev_connect(hdev, 1559 connect_mask & HID_CONNECT_HIDDEV_FORCE)) 1560 hdev->claimed |= HID_CLAIMED_HIDDEV; 1561 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) 1562 hdev->claimed |= HID_CLAIMED_HIDRAW; 1563 1564 /* Drivers with the ->raw_event callback set are not required to connect 1565 * to any other listener. */ 1566 if (!hdev->claimed && !hdev->driver->raw_event) { 1567 hid_err(hdev, "device has no listeners, quitting\n"); 1568 return -ENODEV; 1569 } 1570 1571 if ((hdev->claimed & HID_CLAIMED_INPUT) && 1572 (connect_mask & HID_CONNECT_FF) && hdev->ff_init) 1573 hdev->ff_init(hdev); 1574 1575 len = 0; 1576 if (hdev->claimed & HID_CLAIMED_INPUT) 1577 len += sprintf(buf + len, "input"); 1578 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1579 len += sprintf(buf + len, "%shiddev%d", len ? "," : "", 1580 hdev->minor); 1581 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1582 len += sprintf(buf + len, "%shidraw%d", len ? "," : "", 1583 ((struct hidraw *)hdev->hidraw)->minor); 1584 1585 type = "Device"; 1586 for (i = 0; i < hdev->maxcollection; i++) { 1587 struct hid_collection *col = &hdev->collection[i]; 1588 if (col->type == HID_COLLECTION_APPLICATION && 1589 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && 1590 (col->usage & 0xffff) < ARRAY_SIZE(types)) { 1591 type = types[col->usage & 0xffff]; 1592 break; 1593 } 1594 } 1595 1596 switch (hdev->bus) { 1597 case BUS_USB: 1598 bus = "USB"; 1599 break; 1600 case BUS_BLUETOOTH: 1601 bus = "BLUETOOTH"; 1602 break; 1603 default: 1604 bus = "<UNKNOWN>"; 1605 } 1606 1607 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc); 1608 if (ret) 1609 hid_warn(hdev, 1610 "can't create sysfs report descriptor attribute err: %d\n", ret); 1611 1612 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n", 1613 buf, bus, hdev->version >> 8, hdev->version & 0xff, 1614 type, hdev->name, hdev->phys); 1615 1616 return 0; 1617} 1618EXPORT_SYMBOL_GPL(hid_connect); 1619 1620void hid_disconnect(struct hid_device *hdev) 1621{ 1622 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc); 1623 if (hdev->claimed & HID_CLAIMED_INPUT) 1624 hidinput_disconnect(hdev); 1625 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1626 hdev->hiddev_disconnect(hdev); 1627 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1628 hidraw_disconnect(hdev); 1629} 1630EXPORT_SYMBOL_GPL(hid_disconnect); 1631 1632/* 1633 * A list of devices for which there is a specialized driver on HID bus. 1634 * 1635 * Please note that for multitouch devices (driven by hid-multitouch driver), 1636 * there is a proper autodetection and autoloading in place (based on presence 1637 * of HID_DG_CONTACTID), so those devices don't need to be added to this list, 1638 * as we are doing the right thing in hid_scan_usage(). 1639 * 1640 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type 1641 * physical is found inside a usage page of type sensor, hid-sensor-hub will be 1642 * used as a driver. See hid_scan_report(). 1643 */ 1644static const struct hid_device_id hid_have_special_driver[] = { 1645 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, 1646 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, 1647 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) }, 1648 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) }, 1649 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) }, 1650 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, 1651 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, 1652 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, 1653 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, 1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, 1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, 1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, 1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, 1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, 1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1673 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) }, 1674 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) }, 1675 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) }, 1676 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, 1677 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) }, 1678 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, 1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, 1680 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, 1681 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1682 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1683 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1684 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1685 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1686 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1687 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1688 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1689 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1690 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 1691 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 1692 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 1693 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 1694 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 1695 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 1696 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 1697 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 1698 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 1699 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) }, 1700 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) }, 1701 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) }, 1702 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) }, 1703 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) }, 1704 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) }, 1705 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) }, 1706 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) }, 1707 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) }, 1708 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) }, 1709 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) }, 1710 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) }, 1711 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, 1712 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, 1713 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, 1714 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, 1715 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, 1716 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, 1717 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) }, 1718 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) }, 1719 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) }, 1720 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, 1721 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, 1722 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, 1723 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) }, 1724 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) }, 1725 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1726 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1727 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) }, 1728 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, 1729 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) }, 1730 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) }, 1731 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, 1732 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, 1733 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, 1734 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) }, 1735 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, 1736 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) }, 1737 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, 1738 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, 1739 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, 1740 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, 1741 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) }, 1742 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, 1743 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, 1744 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) }, 1745 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, 1746 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) }, 1747 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) }, 1748 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) }, 1749 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, 1750 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, 1751 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, 1752 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, 1753 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, 1754 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, 1755 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, 1756 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, 1757 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, 1758 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, 1759 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) }, 1760 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, 1761 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) }, 1762 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) }, 1763 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) }, 1764 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) }, 1765 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, 1766 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, 1767 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, 1768 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) }, 1769 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, 1770 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) }, 1771 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) }, 1772 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, 1773 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) }, 1774 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) }, 1775 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, 1776 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, 1777 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) }, 1778#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD) 1779 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) }, 1780#endif 1781 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, 1782 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, 1783 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, 1784 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, 1785 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) }, 1786 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, 1787 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, 1788 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, 1789 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, 1790 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, 1791 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, 1792 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, 1793 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, 1794 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, 1795 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, 1796 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, 1797 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, 1798 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, 1799 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) }, 1800 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, 1801 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, 1802 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) }, 1803 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) }, 1804 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) }, 1805 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, 1806 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) }, 1807#if IS_ENABLED(CONFIG_HID_LOGITECH_DJ) 1808 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) }, 1809 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) }, 1810#endif 1811 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) }, 1812 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, 1813 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, 1814 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, 1815 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, 1816 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, 1817 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) }, 1818 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, 1819 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, 1820 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) }, 1821 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, 1822 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, 1823 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) }, 1824 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, 1825 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, 1826 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, 1827 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) }, 1828 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) }, 1829 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) }, 1830 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) }, 1831 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) }, 1832 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) }, 1833 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) }, 1834 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) }, 1835 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) }, 1836 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) }, 1837 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) }, 1838 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) }, 1839 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) }, 1840 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) }, 1841 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) }, 1842 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) }, 1843 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) }, 1844 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) }, 1845 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) }, 1846 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, 1847 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, 1848 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) }, 1849#if IS_ENABLED(CONFIG_HID_ROCCAT) 1850 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) }, 1851 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) }, 1852 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) }, 1853 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, 1854 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) }, 1855 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) }, 1856 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) }, 1857 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) }, 1858 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) }, 1859 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) }, 1860 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, 1861 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) }, 1862 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) }, 1863 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) }, 1864 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) }, 1865 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) }, 1866#endif 1867 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) }, 1868 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, 1869 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) }, 1870 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) }, 1871 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) }, 1872 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) }, 1873 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) }, 1874 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1875 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) }, 1876 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1877 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) }, 1878 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) }, 1879 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, 1880 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) }, 1881 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) }, 1882 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 1883 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) }, 1884 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, 1885 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, 1886 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) }, 1887 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) }, 1888 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, 1889 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) }, 1890 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, 1891 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) }, 1892 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, 1893 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, 1894 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, 1895 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) }, 1896 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, 1897 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) }, 1898 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) }, 1899 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) }, 1900 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) }, 1901 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) }, 1902 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) }, 1903 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) }, 1904 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, 1905 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) }, 1906 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) }, 1907 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) }, 1908 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) }, 1909 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) }, 1910 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, 1911 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) }, 1912 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) }, 1913 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) }, 1914 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) }, 1915 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) }, 1916 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) }, 1917 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) }, 1918 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) }, 1919 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) }, 1920 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, 1921 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, 1922 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, 1923 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) }, 1924 1925 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, 1926 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, 1927 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, 1928 { } 1929}; 1930 1931struct hid_dynid { 1932 struct list_head list; 1933 struct hid_device_id id; 1934}; 1935 1936/** 1937 * store_new_id - add a new HID device ID to this driver and re-probe devices 1938 * @driver: target device driver 1939 * @buf: buffer for scanning device ID data 1940 * @count: input size 1941 * 1942 * Adds a new dynamic hid device ID to this driver, 1943 * and causes the driver to probe for all devices again. 1944 */ 1945static ssize_t store_new_id(struct device_driver *drv, const char *buf, 1946 size_t count) 1947{ 1948 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1949 struct hid_dynid *dynid; 1950 __u32 bus, vendor, product; 1951 unsigned long driver_data = 0; 1952 int ret; 1953 1954 ret = sscanf(buf, "%x %x %x %lx", 1955 &bus, &vendor, &product, &driver_data); 1956 if (ret < 3) 1957 return -EINVAL; 1958 1959 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); 1960 if (!dynid) 1961 return -ENOMEM; 1962 1963 dynid->id.bus = bus; 1964 dynid->id.group = HID_GROUP_ANY; 1965 dynid->id.vendor = vendor; 1966 dynid->id.product = product; 1967 dynid->id.driver_data = driver_data; 1968 1969 spin_lock(&hdrv->dyn_lock); 1970 list_add_tail(&dynid->list, &hdrv->dyn_list); 1971 spin_unlock(&hdrv->dyn_lock); 1972 1973 ret = driver_attach(&hdrv->driver); 1974 1975 return ret ? : count; 1976} 1977static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); 1978 1979static void hid_free_dynids(struct hid_driver *hdrv) 1980{ 1981 struct hid_dynid *dynid, *n; 1982 1983 spin_lock(&hdrv->dyn_lock); 1984 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { 1985 list_del(&dynid->list); 1986 kfree(dynid); 1987 } 1988 spin_unlock(&hdrv->dyn_lock); 1989} 1990 1991static const struct hid_device_id *hid_match_device(struct hid_device *hdev, 1992 struct hid_driver *hdrv) 1993{ 1994 struct hid_dynid *dynid; 1995 1996 spin_lock(&hdrv->dyn_lock); 1997 list_for_each_entry(dynid, &hdrv->dyn_list, list) { 1998 if (hid_match_one_id(hdev, &dynid->id)) { 1999 spin_unlock(&hdrv->dyn_lock); 2000 return &dynid->id; 2001 } 2002 } 2003 spin_unlock(&hdrv->dyn_lock); 2004 2005 return hid_match_id(hdev, hdrv->id_table); 2006} 2007 2008static int hid_bus_match(struct device *dev, struct device_driver *drv) 2009{ 2010 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 2011 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2012 2013 return hid_match_device(hdev, hdrv) != NULL; 2014} 2015 2016static int hid_device_probe(struct device *dev) 2017{ 2018 struct hid_driver *hdrv = container_of(dev->driver, 2019 struct hid_driver, driver); 2020 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2021 const struct hid_device_id *id; 2022 int ret = 0; 2023 2024 if (down_interruptible(&hdev->driver_lock)) 2025 return -EINTR; 2026 if (down_interruptible(&hdev->driver_input_lock)) { 2027 ret = -EINTR; 2028 goto unlock_driver_lock; 2029 } 2030 hdev->io_started = false; 2031 2032 if (!hdev->driver) { 2033 id = hid_match_device(hdev, hdrv); 2034 if (id == NULL) { 2035 ret = -ENODEV; 2036 goto unlock; 2037 } 2038 2039 hdev->driver = hdrv; 2040 if (hdrv->probe) { 2041 ret = hdrv->probe(hdev, id); 2042 } else { /* default probe */ 2043 ret = hid_open_report(hdev); 2044 if (!ret) 2045 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 2046 } 2047 if (ret) { 2048 hid_close_report(hdev); 2049 hdev->driver = NULL; 2050 } 2051 } 2052unlock: 2053 if (!hdev->io_started) 2054 up(&hdev->driver_input_lock); 2055unlock_driver_lock: 2056 up(&hdev->driver_lock); 2057 return ret; 2058} 2059 2060static int hid_device_remove(struct device *dev) 2061{ 2062 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2063 struct hid_driver *hdrv; 2064 int ret = 0; 2065 2066 if (down_interruptible(&hdev->driver_lock)) 2067 return -EINTR; 2068 if (down_interruptible(&hdev->driver_input_lock)) { 2069 ret = -EINTR; 2070 goto unlock_driver_lock; 2071 } 2072 hdev->io_started = false; 2073 2074 hdrv = hdev->driver; 2075 if (hdrv) { 2076 if (hdrv->remove) 2077 hdrv->remove(hdev); 2078 else /* default remove */ 2079 hid_hw_stop(hdev); 2080 hid_close_report(hdev); 2081 hdev->driver = NULL; 2082 } 2083 2084 if (!hdev->io_started) 2085 up(&hdev->driver_input_lock); 2086unlock_driver_lock: 2087 up(&hdev->driver_lock); 2088 return ret; 2089} 2090 2091static ssize_t modalias_show(struct device *dev, struct device_attribute *a, 2092 char *buf) 2093{ 2094 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2095 int len; 2096 2097 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n", 2098 hdev->bus, hdev->group, hdev->vendor, hdev->product); 2099 2100 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; 2101} 2102static DEVICE_ATTR_RO(modalias); 2103 2104static struct attribute *hid_dev_attrs[] = { 2105 &dev_attr_modalias.attr, 2106 NULL, 2107}; 2108ATTRIBUTE_GROUPS(hid_dev); 2109 2110static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) 2111{ 2112 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2113 2114 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", 2115 hdev->bus, hdev->vendor, hdev->product)) 2116 return -ENOMEM; 2117 2118 if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) 2119 return -ENOMEM; 2120 2121 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) 2122 return -ENOMEM; 2123 2124 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) 2125 return -ENOMEM; 2126 2127 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X", 2128 hdev->bus, hdev->group, hdev->vendor, hdev->product)) 2129 return -ENOMEM; 2130 2131 return 0; 2132} 2133 2134static struct bus_type hid_bus_type = { 2135 .name = "hid", 2136 .dev_groups = hid_dev_groups, 2137 .match = hid_bus_match, 2138 .probe = hid_device_probe, 2139 .remove = hid_device_remove, 2140 .uevent = hid_uevent, 2141}; 2142 2143/* a list of devices that shouldn't be handled by HID core at all */ 2144static const struct hid_device_id hid_ignore_list[] = { 2145 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, 2146 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, 2147 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, 2148 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, 2149 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, 2150 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, 2151 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, 2152 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, 2153 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, 2154 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, 2155 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, 2156 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, 2157 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)}, 2158 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)}, 2159 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, 2160 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) }, 2161 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, 2162 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, 2163 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, 2164 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, 2165 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, 2166 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, 2167 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, 2168 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, 2169 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, 2170 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) }, 2171 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) }, 2172 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, 2173 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) }, 2174 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) }, 2175 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, 2176 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, 2177 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, 2178 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, 2179 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, 2180 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, 2181 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, 2182 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, 2183 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, 2184 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, 2185 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, 2186 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, 2187 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, 2188 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, 2189 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, 2190 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, 2191 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, 2192 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) }, 2193 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, 2194 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, 2195 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, 2196 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, 2197 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, 2198 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, 2199 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, 2200 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, 2201 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, 2202 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, 2203 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, 2204 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, 2205 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, 2206 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, 2207 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, 2208 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, 2209 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, 2210 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, 2211 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, 2212 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, 2213 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, 2214 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, 2215 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, 2216 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, 2217 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, 2218 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, 2219 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, 2220 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, 2221 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, 2222 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, 2223 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, 2224 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, 2225 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, 2226 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, 2227 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, 2228 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, 2229 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, 2230 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, 2231 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, 2232 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, 2233 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, 2234 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, 2235 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, 2236 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, 2237 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, 2238 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, 2239 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, 2240 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) }, 2241 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) }, 2242 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, 2243 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, 2244 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, 2245 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) }, 2246 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, 2247 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) }, 2248 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, 2249 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) }, 2250 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, 2251 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) }, 2252 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) }, 2253 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) }, 2254 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) }, 2255 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) }, 2256 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) }, 2257 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, 2258 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, 2259 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, 2260 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) }, 2261 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) }, 2262 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) }, 2263 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, 2264 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, 2265 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) }, 2266 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, 2267 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, 2268 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, 2269 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, 2270 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, 2271 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) }, 2272 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) }, 2273 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) }, 2274 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) }, 2275 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) }, 2276 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) }, 2277 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) }, 2278 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) }, 2279 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, 2280 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, 2281 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, 2282 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, 2283 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, 2284 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, 2285 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, 2286 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, 2287 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, 2288 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, 2289 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, 2290 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, 2291 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, 2292 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, 2293 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, 2294 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, 2295 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, 2296 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, 2297 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, 2298 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) }, 2299 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, 2300#if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE) 2301 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) }, 2302 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) }, 2303 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) }, 2304 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) }, 2305 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) }, 2306 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) }, 2307 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) }, 2308 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) }, 2309#endif 2310 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, 2311 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, 2312 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, 2313 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, 2314 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, 2315 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, 2316 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, 2317 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, 2318 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, 2319 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, 2320 { } 2321}; 2322 2323/** 2324 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer 2325 * 2326 * There are composite devices for which we want to ignore only a certain 2327 * interface. This is a list of devices for which only the mouse interface will 2328 * be ignored. This allows a dedicated driver to take care of the interface. 2329 */ 2330static const struct hid_device_id hid_mouse_ignore_list[] = { 2331 /* appletouch driver */ 2332 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 2333 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 2334 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 2335 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 2336 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 2337 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 2338 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 2339 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 2340 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 2341 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 2342 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 2343 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 2344 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 2345 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 2346 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 2347 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 2348 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 2349 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 2350 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 2351 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 2352 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 2353 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 2354 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 2355 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 2356 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 2357 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 2358 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 2359 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 2360 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 2361 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 2362 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 2363 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 2364 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) }, 2365 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) }, 2366 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) }, 2367 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) }, 2368 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) }, 2369 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) }, 2370 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) }, 2371 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) }, 2372 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) }, 2373 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, 2374 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, 2375 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, 2376 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, 2377 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, 2378 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, 2379 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) }, 2380 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) }, 2381 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) }, 2382 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 2383 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 2384 { } 2385}; 2386 2387bool hid_ignore(struct hid_device *hdev) 2388{ 2389 if (hdev->quirks & HID_QUIRK_NO_IGNORE) 2390 return false; 2391 if (hdev->quirks & HID_QUIRK_IGNORE) 2392 return true; 2393 2394 switch (hdev->vendor) { 2395 case USB_VENDOR_ID_CODEMERCS: 2396 /* ignore all Code Mercenaries IOWarrior devices */ 2397 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && 2398 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) 2399 return true; 2400 break; 2401 case USB_VENDOR_ID_LOGITECH: 2402 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && 2403 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) 2404 return true; 2405 /* 2406 * The Keene FM transmitter USB device has the same USB ID as 2407 * the Logitech AudioHub Speaker, but it should ignore the hid. 2408 * Check if the name is that of the Keene device. 2409 * For reference: the name of the AudioHub is 2410 * "HOLTEK AudioHub Speaker". 2411 */ 2412 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB && 2413 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio ")) 2414 return true; 2415 break; 2416 case USB_VENDOR_ID_SOUNDGRAPH: 2417 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST && 2418 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST) 2419 return true; 2420 break; 2421 case USB_VENDOR_ID_HANWANG: 2422 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST && 2423 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST) 2424 return true; 2425 break; 2426 case USB_VENDOR_ID_JESS: 2427 if (hdev->product == USB_DEVICE_ID_JESS_YUREX && 2428 hdev->type == HID_TYPE_USBNONE) 2429 return true; 2430 break; 2431 case USB_VENDOR_ID_VELLEMAN: 2432 /* These are not HID devices. They are handled by comedi. */ 2433 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST && 2434 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) || 2435 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST && 2436 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST)) 2437 return true; 2438 break; 2439 case USB_VENDOR_ID_ATMEL_V_USB: 2440 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and 2441 * it has the same USB ID as many Atmel V-USB devices. This 2442 * usb radio is handled by radio-ma901.c driver so we want 2443 * ignore the hid. Check the name, bus, product and ignore 2444 * if we have MA901 usb radio. 2445 */ 2446 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB && 2447 hdev->bus == BUS_USB && 2448 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0) 2449 return true; 2450 break; 2451 } 2452 2453 if (hdev->type == HID_TYPE_USBMOUSE && 2454 hid_match_id(hdev, hid_mouse_ignore_list)) 2455 return true; 2456 2457 return !!hid_match_id(hdev, hid_ignore_list); 2458} 2459EXPORT_SYMBOL_GPL(hid_ignore); 2460 2461int hid_add_device(struct hid_device *hdev) 2462{ 2463 static atomic_t id = ATOMIC_INIT(0); 2464 int ret; 2465 2466 if (WARN_ON(hdev->status & HID_STAT_ADDED)) 2467 return -EBUSY; 2468 2469 /* we need to kill them here, otherwise they will stay allocated to 2470 * wait for coming driver */ 2471 if (hid_ignore(hdev)) 2472 return -ENODEV; 2473 2474 /* 2475 * Read the device report descriptor once and use as template 2476 * for the driver-specific modifications. 2477 */ 2478 ret = hdev->ll_driver->parse(hdev); 2479 if (ret) 2480 return ret; 2481 if (!hdev->dev_rdesc) 2482 return -ENODEV; 2483 2484 /* 2485 * Scan generic devices for group information 2486 */ 2487 if (hid_ignore_special_drivers || 2488 !hid_match_id(hdev, hid_have_special_driver)) { 2489 ret = hid_scan_report(hdev); 2490 if (ret) 2491 hid_warn(hdev, "bad device descriptor (%d)\n", ret); 2492 } 2493 2494 /* XXX hack, any other cleaner solution after the driver core 2495 * is converted to allow more than 20 bytes as the device name? */ 2496 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, 2497 hdev->vendor, hdev->product, atomic_inc_return(&id)); 2498 2499 hid_debug_register(hdev, dev_name(&hdev->dev)); 2500 ret = device_add(&hdev->dev); 2501 if (!ret) 2502 hdev->status |= HID_STAT_ADDED; 2503 else 2504 hid_debug_unregister(hdev); 2505 2506 return ret; 2507} 2508EXPORT_SYMBOL_GPL(hid_add_device); 2509 2510/** 2511 * hid_allocate_device - allocate new hid device descriptor 2512 * 2513 * Allocate and initialize hid device, so that hid_destroy_device might be 2514 * used to free it. 2515 * 2516 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded 2517 * error value. 2518 */ 2519struct hid_device *hid_allocate_device(void) 2520{ 2521 struct hid_device *hdev; 2522 int ret = -ENOMEM; 2523 2524 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); 2525 if (hdev == NULL) 2526 return ERR_PTR(ret); 2527 2528 device_initialize(&hdev->dev); 2529 hdev->dev.release = hid_device_release; 2530 hdev->dev.bus = &hid_bus_type; 2531 2532 hid_close_report(hdev); 2533 2534 init_waitqueue_head(&hdev->debug_wait); 2535 INIT_LIST_HEAD(&hdev->debug_list); 2536 spin_lock_init(&hdev->debug_list_lock); 2537 sema_init(&hdev->driver_lock, 1); 2538 sema_init(&hdev->driver_input_lock, 1); 2539 2540 return hdev; 2541} 2542EXPORT_SYMBOL_GPL(hid_allocate_device); 2543 2544static void hid_remove_device(struct hid_device *hdev) 2545{ 2546 if (hdev->status & HID_STAT_ADDED) { 2547 device_del(&hdev->dev); 2548 hid_debug_unregister(hdev); 2549 hdev->status &= ~HID_STAT_ADDED; 2550 } 2551 kfree(hdev->dev_rdesc); 2552 hdev->dev_rdesc = NULL; 2553 hdev->dev_rsize = 0; 2554} 2555 2556/** 2557 * hid_destroy_device - free previously allocated device 2558 * 2559 * @hdev: hid device 2560 * 2561 * If you allocate hid_device through hid_allocate_device, you should ever 2562 * free by this function. 2563 */ 2564void hid_destroy_device(struct hid_device *hdev) 2565{ 2566 hid_remove_device(hdev); 2567 put_device(&hdev->dev); 2568} 2569EXPORT_SYMBOL_GPL(hid_destroy_device); 2570 2571int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, 2572 const char *mod_name) 2573{ 2574 int ret; 2575 2576 hdrv->driver.name = hdrv->name; 2577 hdrv->driver.bus = &hid_bus_type; 2578 hdrv->driver.owner = owner; 2579 hdrv->driver.mod_name = mod_name; 2580 2581 INIT_LIST_HEAD(&hdrv->dyn_list); 2582 spin_lock_init(&hdrv->dyn_lock); 2583 2584 ret = driver_register(&hdrv->driver); 2585 if (ret) 2586 return ret; 2587 2588 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); 2589 if (ret) 2590 driver_unregister(&hdrv->driver); 2591 2592 return ret; 2593} 2594EXPORT_SYMBOL_GPL(__hid_register_driver); 2595 2596void hid_unregister_driver(struct hid_driver *hdrv) 2597{ 2598 driver_remove_file(&hdrv->driver, &driver_attr_new_id); 2599 driver_unregister(&hdrv->driver); 2600 hid_free_dynids(hdrv); 2601} 2602EXPORT_SYMBOL_GPL(hid_unregister_driver); 2603 2604int hid_check_keys_pressed(struct hid_device *hid) 2605{ 2606 struct hid_input *hidinput; 2607 int i; 2608 2609 if (!(hid->claimed & HID_CLAIMED_INPUT)) 2610 return 0; 2611 2612 list_for_each_entry(hidinput, &hid->inputs, list) { 2613 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) 2614 if (hidinput->input->key[i]) 2615 return 1; 2616 } 2617 2618 return 0; 2619} 2620 2621EXPORT_SYMBOL_GPL(hid_check_keys_pressed); 2622 2623static int __init hid_init(void) 2624{ 2625 int ret; 2626 2627 if (hid_debug) 2628 pr_warn("hid_debug is now used solely for parser and driver debugging.\n" 2629 "debugfs is now used for inspecting the device (report descriptor, reports)\n"); 2630 2631 ret = bus_register(&hid_bus_type); 2632 if (ret) { 2633 pr_err("can't register hid bus\n"); 2634 goto err; 2635 } 2636 2637 ret = hidraw_init(); 2638 if (ret) 2639 goto err_bus; 2640 2641 hid_debug_init(); 2642 2643 return 0; 2644err_bus: 2645 bus_unregister(&hid_bus_type); 2646err: 2647 return ret; 2648} 2649 2650static void __exit hid_exit(void) 2651{ 2652 hid_debug_exit(); 2653 hidraw_exit(); 2654 bus_unregister(&hid_bus_type); 2655} 2656 2657module_init(hid_init); 2658module_exit(hid_exit); 2659 2660MODULE_AUTHOR("Andreas Gal"); 2661MODULE_AUTHOR("Vojtech Pavlik"); 2662MODULE_AUTHOR("Jiri Kosina"); 2663MODULE_LICENSE(DRIVER_LICENSE); 2664 2665