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 48 int hid_debug = 0; 49 module_param_named(debug, hid_debug, int, 0600); 50 MODULE_PARM_DESC(debug, "toggle HID debugging messages"); 51 EXPORT_SYMBOL_GPL(hid_debug); 52 53 static int hid_ignore_special_drivers = 0; 54 module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600); 55 MODULE_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 61 struct 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 } 88 EXPORT_SYMBOL_GPL(hid_register_report); 89 90 /* 91 * Register a new field for this report. 92 */ 93 94 static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values) 95 { 96 struct hid_field *field; 97 int i; 98 99 if (report->maxfield == HID_MAX_FIELDS) { 100 hid_err(report->device, "too many fields in report\n"); 101 return NULL; 102 } 103 104 field = kzalloc((sizeof(struct hid_field) + 105 usages * sizeof(struct hid_usage) + 106 values * sizeof(unsigned)), GFP_KERNEL); 107 if (!field) 108 return NULL; 109 110 field->index = report->maxfield++; 111 report->field[field->index] = field; 112 field->usage = (struct hid_usage *)(field + 1); 113 field->value = (s32 *)(field->usage + usages); 114 field->report = report; 115 116 for (i = 0; i < usages; i++) 117 field->usage[i].usage_index = i; 118 119 return field; 120 } 121 122 /* 123 * Open a collection. The type/usage is pushed on the stack. 124 */ 125 126 static int open_collection(struct hid_parser *parser, unsigned type) 127 { 128 struct hid_collection *collection; 129 unsigned usage; 130 131 usage = parser->local.usage[0]; 132 133 if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) { 134 hid_err(parser->device, "collection stack overflow\n"); 135 return -EINVAL; 136 } 137 138 if (parser->device->maxcollection == parser->device->collection_size) { 139 collection = kmalloc(sizeof(struct hid_collection) * 140 parser->device->collection_size * 2, GFP_KERNEL); 141 if (collection == NULL) { 142 hid_err(parser->device, "failed to reallocate collection array\n"); 143 return -ENOMEM; 144 } 145 memcpy(collection, parser->device->collection, 146 sizeof(struct hid_collection) * 147 parser->device->collection_size); 148 memset(collection + parser->device->collection_size, 0, 149 sizeof(struct hid_collection) * 150 parser->device->collection_size); 151 kfree(parser->device->collection); 152 parser->device->collection = collection; 153 parser->device->collection_size *= 2; 154 } 155 156 parser->collection_stack[parser->collection_stack_ptr++] = 157 parser->device->maxcollection; 158 159 collection = parser->device->collection + 160 parser->device->maxcollection++; 161 collection->type = type; 162 collection->usage = usage; 163 collection->level = parser->collection_stack_ptr - 1; 164 165 if (type == HID_COLLECTION_APPLICATION) 166 parser->device->maxapplication++; 167 168 return 0; 169 } 170 171 /* 172 * Close a collection. 173 */ 174 175 static int close_collection(struct hid_parser *parser) 176 { 177 if (!parser->collection_stack_ptr) { 178 hid_err(parser->device, "collection stack underflow\n"); 179 return -EINVAL; 180 } 181 parser->collection_stack_ptr--; 182 return 0; 183 } 184 185 /* 186 * Climb up the stack, search for the specified collection type 187 * and return the usage. 188 */ 189 190 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type) 191 { 192 struct hid_collection *collection = parser->device->collection; 193 int n; 194 195 for (n = parser->collection_stack_ptr - 1; n >= 0; n--) { 196 unsigned index = parser->collection_stack[n]; 197 if (collection[index].type == type) 198 return collection[index].usage; 199 } 200 return 0; /* we know nothing about this usage type */ 201 } 202 203 /* 204 * Add a usage to the temporary parser table. 205 */ 206 207 static int hid_add_usage(struct hid_parser *parser, unsigned usage) 208 { 209 if (parser->local.usage_index >= HID_MAX_USAGES) { 210 hid_err(parser->device, "usage index exceeded\n"); 211 return -1; 212 } 213 parser->local.usage[parser->local.usage_index] = usage; 214 parser->local.collection_index[parser->local.usage_index] = 215 parser->collection_stack_ptr ? 216 parser->collection_stack[parser->collection_stack_ptr - 1] : 0; 217 parser->local.usage_index++; 218 return 0; 219 } 220 221 /* 222 * Register a new field for this report. 223 */ 224 225 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags) 226 { 227 struct hid_report *report; 228 struct hid_field *field; 229 int usages; 230 unsigned offset; 231 int i; 232 233 report = hid_register_report(parser->device, report_type, parser->global.report_id); 234 if (!report) { 235 hid_err(parser->device, "hid_register_report failed\n"); 236 return -1; 237 } 238 239 /* Handle both signed and unsigned cases properly */ 240 if ((parser->global.logical_minimum < 0 && 241 parser->global.logical_maximum < 242 parser->global.logical_minimum) || 243 (parser->global.logical_minimum >= 0 && 244 (__u32)parser->global.logical_maximum < 245 (__u32)parser->global.logical_minimum)) { 246 dbg_hid("logical range invalid 0x%x 0x%x\n", 247 parser->global.logical_minimum, 248 parser->global.logical_maximum); 249 return -1; 250 } 251 252 offset = report->size; 253 report->size += parser->global.report_size * parser->global.report_count; 254 255 if (!parser->local.usage_index) /* Ignore padding fields */ 256 return 0; 257 258 usages = max_t(int, parser->local.usage_index, parser->global.report_count); 259 260 field = hid_register_field(report, usages, parser->global.report_count); 261 if (!field) 262 return 0; 263 264 field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL); 265 field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL); 266 field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION); 267 268 for (i = 0; i < usages; i++) { 269 int j = i; 270 /* Duplicate the last usage we parsed if we have excess values */ 271 if (i >= parser->local.usage_index) 272 j = parser->local.usage_index - 1; 273 field->usage[i].hid = parser->local.usage[j]; 274 field->usage[i].collection_index = 275 parser->local.collection_index[j]; 276 } 277 278 field->maxusage = usages; 279 field->flags = flags; 280 field->report_offset = offset; 281 field->report_type = report_type; 282 field->report_size = parser->global.report_size; 283 field->report_count = parser->global.report_count; 284 field->logical_minimum = parser->global.logical_minimum; 285 field->logical_maximum = parser->global.logical_maximum; 286 field->physical_minimum = parser->global.physical_minimum; 287 field->physical_maximum = parser->global.physical_maximum; 288 field->unit_exponent = parser->global.unit_exponent; 289 field->unit = parser->global.unit; 290 291 return 0; 292 } 293 294 /* 295 * Read data value from item. 296 */ 297 298 static u32 item_udata(struct hid_item *item) 299 { 300 switch (item->size) { 301 case 1: return item->data.u8; 302 case 2: return item->data.u16; 303 case 4: return item->data.u32; 304 } 305 return 0; 306 } 307 308 static s32 item_sdata(struct hid_item *item) 309 { 310 switch (item->size) { 311 case 1: return item->data.s8; 312 case 2: return item->data.s16; 313 case 4: return item->data.s32; 314 } 315 return 0; 316 } 317 318 /* 319 * Process a global item. 320 */ 321 322 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item) 323 { 324 __u32 raw_value; 325 switch (item->tag) { 326 case HID_GLOBAL_ITEM_TAG_PUSH: 327 328 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) { 329 hid_err(parser->device, "global environment stack overflow\n"); 330 return -1; 331 } 332 333 memcpy(parser->global_stack + parser->global_stack_ptr++, 334 &parser->global, sizeof(struct hid_global)); 335 return 0; 336 337 case HID_GLOBAL_ITEM_TAG_POP: 338 339 if (!parser->global_stack_ptr) { 340 hid_err(parser->device, "global environment stack underflow\n"); 341 return -1; 342 } 343 344 memcpy(&parser->global, parser->global_stack + 345 --parser->global_stack_ptr, sizeof(struct hid_global)); 346 return 0; 347 348 case HID_GLOBAL_ITEM_TAG_USAGE_PAGE: 349 parser->global.usage_page = item_udata(item); 350 return 0; 351 352 case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM: 353 parser->global.logical_minimum = item_sdata(item); 354 return 0; 355 356 case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM: 357 if (parser->global.logical_minimum < 0) 358 parser->global.logical_maximum = item_sdata(item); 359 else 360 parser->global.logical_maximum = item_udata(item); 361 return 0; 362 363 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM: 364 parser->global.physical_minimum = item_sdata(item); 365 return 0; 366 367 case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM: 368 if (parser->global.physical_minimum < 0) 369 parser->global.physical_maximum = item_sdata(item); 370 else 371 parser->global.physical_maximum = item_udata(item); 372 return 0; 373 374 case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT: 375 /* Units exponent negative numbers are given through a 376 * two's complement. 377 * See "6.2.2.7 Global Items" for more information. */ 378 raw_value = item_udata(item); 379 if (!(raw_value & 0xfffffff0)) 380 parser->global.unit_exponent = hid_snto32(raw_value, 4); 381 else 382 parser->global.unit_exponent = raw_value; 383 return 0; 384 385 case HID_GLOBAL_ITEM_TAG_UNIT: 386 parser->global.unit = item_udata(item); 387 return 0; 388 389 case HID_GLOBAL_ITEM_TAG_REPORT_SIZE: 390 parser->global.report_size = item_udata(item); 391 if (parser->global.report_size > 128) { 392 hid_err(parser->device, "invalid report_size %d\n", 393 parser->global.report_size); 394 return -1; 395 } 396 return 0; 397 398 case HID_GLOBAL_ITEM_TAG_REPORT_COUNT: 399 parser->global.report_count = item_udata(item); 400 if (parser->global.report_count > HID_MAX_USAGES) { 401 hid_err(parser->device, "invalid report_count %d\n", 402 parser->global.report_count); 403 return -1; 404 } 405 return 0; 406 407 case HID_GLOBAL_ITEM_TAG_REPORT_ID: 408 parser->global.report_id = item_udata(item); 409 if (parser->global.report_id == 0 || 410 parser->global.report_id >= HID_MAX_IDS) { 411 hid_err(parser->device, "report_id %u is invalid\n", 412 parser->global.report_id); 413 return -1; 414 } 415 return 0; 416 417 default: 418 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag); 419 return -1; 420 } 421 } 422 423 /* 424 * Process a local item. 425 */ 426 427 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item) 428 { 429 __u32 data; 430 unsigned n; 431 432 data = item_udata(item); 433 434 switch (item->tag) { 435 case HID_LOCAL_ITEM_TAG_DELIMITER: 436 437 if (data) { 438 /* 439 * We treat items before the first delimiter 440 * as global to all usage sets (branch 0). 441 * In the moment we process only these global 442 * items and the first delimiter set. 443 */ 444 if (parser->local.delimiter_depth != 0) { 445 hid_err(parser->device, "nested delimiters\n"); 446 return -1; 447 } 448 parser->local.delimiter_depth++; 449 parser->local.delimiter_branch++; 450 } else { 451 if (parser->local.delimiter_depth < 1) { 452 hid_err(parser->device, "bogus close delimiter\n"); 453 return -1; 454 } 455 parser->local.delimiter_depth--; 456 } 457 return 0; 458 459 case HID_LOCAL_ITEM_TAG_USAGE: 460 461 if (parser->local.delimiter_branch > 1) { 462 dbg_hid("alternative usage ignored\n"); 463 return 0; 464 } 465 466 if (item->size <= 2) 467 data = (parser->global.usage_page << 16) + data; 468 469 return hid_add_usage(parser, data); 470 471 case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM: 472 473 if (parser->local.delimiter_branch > 1) { 474 dbg_hid("alternative usage ignored\n"); 475 return 0; 476 } 477 478 if (item->size <= 2) 479 data = (parser->global.usage_page << 16) + data; 480 481 parser->local.usage_minimum = data; 482 return 0; 483 484 case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM: 485 486 if (parser->local.delimiter_branch > 1) { 487 dbg_hid("alternative usage ignored\n"); 488 return 0; 489 } 490 491 if (item->size <= 2) 492 data = (parser->global.usage_page << 16) + data; 493 494 for (n = parser->local.usage_minimum; n <= data; n++) 495 if (hid_add_usage(parser, n)) { 496 dbg_hid("hid_add_usage failed\n"); 497 return -1; 498 } 499 return 0; 500 501 default: 502 503 dbg_hid("unknown local item tag 0x%x\n", item->tag); 504 return 0; 505 } 506 return 0; 507 } 508 509 /* 510 * Process a main item. 511 */ 512 513 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item) 514 { 515 __u32 data; 516 int ret; 517 518 data = item_udata(item); 519 520 switch (item->tag) { 521 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 522 ret = open_collection(parser, data & 0xff); 523 break; 524 case HID_MAIN_ITEM_TAG_END_COLLECTION: 525 ret = close_collection(parser); 526 break; 527 case HID_MAIN_ITEM_TAG_INPUT: 528 ret = hid_add_field(parser, HID_INPUT_REPORT, data); 529 break; 530 case HID_MAIN_ITEM_TAG_OUTPUT: 531 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data); 532 break; 533 case HID_MAIN_ITEM_TAG_FEATURE: 534 ret = hid_add_field(parser, HID_FEATURE_REPORT, data); 535 break; 536 default: 537 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag); 538 ret = 0; 539 } 540 541 memset(&parser->local, 0, sizeof(parser->local)); /* Reset the local parser environment */ 542 543 return ret; 544 } 545 546 /* 547 * Process a reserved item. 548 */ 549 550 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item) 551 { 552 dbg_hid("reserved item type, tag 0x%x\n", item->tag); 553 return 0; 554 } 555 556 /* 557 * Free a report and all registered fields. The field->usage and 558 * field->value table's are allocated behind the field, so we need 559 * only to free(field) itself. 560 */ 561 562 static void hid_free_report(struct hid_report *report) 563 { 564 unsigned n; 565 566 for (n = 0; n < report->maxfield; n++) 567 kfree(report->field[n]); 568 kfree(report); 569 } 570 571 /* 572 * Close report. This function returns the device 573 * state to the point prior to hid_open_report(). 574 */ 575 static void hid_close_report(struct hid_device *device) 576 { 577 unsigned i, j; 578 579 for (i = 0; i < HID_REPORT_TYPES; i++) { 580 struct hid_report_enum *report_enum = device->report_enum + i; 581 582 for (j = 0; j < HID_MAX_IDS; j++) { 583 struct hid_report *report = report_enum->report_id_hash[j]; 584 if (report) 585 hid_free_report(report); 586 } 587 memset(report_enum, 0, sizeof(*report_enum)); 588 INIT_LIST_HEAD(&report_enum->report_list); 589 } 590 591 kfree(device->rdesc); 592 device->rdesc = NULL; 593 device->rsize = 0; 594 595 kfree(device->collection); 596 device->collection = NULL; 597 device->collection_size = 0; 598 device->maxcollection = 0; 599 device->maxapplication = 0; 600 601 device->status &= ~HID_STAT_PARSED; 602 } 603 604 /* 605 * Free a device structure, all reports, and all fields. 606 */ 607 608 static void hid_device_release(struct device *dev) 609 { 610 struct hid_device *hid = container_of(dev, struct hid_device, dev); 611 612 hid_close_report(hid); 613 kfree(hid->dev_rdesc); 614 kfree(hid); 615 } 616 617 /* 618 * Fetch a report description item from the data stream. We support long 619 * items, though they are not used yet. 620 */ 621 622 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item) 623 { 624 u8 b; 625 626 if ((end - start) <= 0) 627 return NULL; 628 629 b = *start++; 630 631 item->type = (b >> 2) & 3; 632 item->tag = (b >> 4) & 15; 633 634 if (item->tag == HID_ITEM_TAG_LONG) { 635 636 item->format = HID_ITEM_FORMAT_LONG; 637 638 if ((end - start) < 2) 639 return NULL; 640 641 item->size = *start++; 642 item->tag = *start++; 643 644 if ((end - start) < item->size) 645 return NULL; 646 647 item->data.longdata = start; 648 start += item->size; 649 return start; 650 } 651 652 item->format = HID_ITEM_FORMAT_SHORT; 653 item->size = b & 3; 654 655 switch (item->size) { 656 case 0: 657 return start; 658 659 case 1: 660 if ((end - start) < 1) 661 return NULL; 662 item->data.u8 = *start++; 663 return start; 664 665 case 2: 666 if ((end - start) < 2) 667 return NULL; 668 item->data.u16 = get_unaligned_le16(start); 669 start = (__u8 *)((__le16 *)start + 1); 670 return start; 671 672 case 3: 673 item->size++; 674 if ((end - start) < 4) 675 return NULL; 676 item->data.u32 = get_unaligned_le32(start); 677 start = (__u8 *)((__le32 *)start + 1); 678 return start; 679 } 680 681 return NULL; 682 } 683 684 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage) 685 { 686 struct hid_device *hid = parser->device; 687 688 if (usage == HID_DG_CONTACTID) 689 hid->group = HID_GROUP_MULTITOUCH; 690 } 691 692 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage) 693 { 694 if (usage == 0xff0000c5 && parser->global.report_count == 256 && 695 parser->global.report_size == 8) 696 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8; 697 } 698 699 static void hid_scan_collection(struct hid_parser *parser, unsigned type) 700 { 701 struct hid_device *hid = parser->device; 702 703 if (((parser->global.usage_page << 16) == HID_UP_SENSOR) && 704 type == HID_COLLECTION_PHYSICAL) 705 hid->group = HID_GROUP_SENSOR_HUB; 706 } 707 708 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item) 709 { 710 __u32 data; 711 int i; 712 713 data = item_udata(item); 714 715 switch (item->tag) { 716 case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION: 717 hid_scan_collection(parser, data & 0xff); 718 break; 719 case HID_MAIN_ITEM_TAG_END_COLLECTION: 720 break; 721 case HID_MAIN_ITEM_TAG_INPUT: 722 for (i = 0; i < parser->local.usage_index; i++) 723 hid_scan_input_usage(parser, parser->local.usage[i]); 724 break; 725 case HID_MAIN_ITEM_TAG_OUTPUT: 726 break; 727 case HID_MAIN_ITEM_TAG_FEATURE: 728 for (i = 0; i < parser->local.usage_index; i++) 729 hid_scan_feature_usage(parser, parser->local.usage[i]); 730 break; 731 } 732 733 /* Reset the local parser environment */ 734 memset(&parser->local, 0, sizeof(parser->local)); 735 736 return 0; 737 } 738 739 /* 740 * Scan a report descriptor before the device is added to the bus. 741 * Sets device groups and other properties that determine what driver 742 * to load. 743 */ 744 static int hid_scan_report(struct hid_device *hid) 745 { 746 struct hid_parser *parser; 747 struct hid_item item; 748 __u8 *start = hid->dev_rdesc; 749 __u8 *end = start + hid->dev_rsize; 750 static int (*dispatch_type[])(struct hid_parser *parser, 751 struct hid_item *item) = { 752 hid_scan_main, 753 hid_parser_global, 754 hid_parser_local, 755 hid_parser_reserved 756 }; 757 758 parser = vzalloc(sizeof(struct hid_parser)); 759 if (!parser) 760 return -ENOMEM; 761 762 parser->device = hid; 763 hid->group = HID_GROUP_GENERIC; 764 765 /* 766 * The parsing is simpler than the one in hid_open_report() as we should 767 * be robust against hid errors. Those errors will be raised by 768 * hid_open_report() anyway. 769 */ 770 while ((start = fetch_item(start, end, &item)) != NULL) 771 dispatch_type[item.type](parser, &item); 772 773 /* 774 * Handle special flags set during scanning. 775 */ 776 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) && 777 (hid->group == HID_GROUP_MULTITOUCH)) 778 hid->group = HID_GROUP_MULTITOUCH_WIN_8; 779 780 vfree(parser); 781 return 0; 782 } 783 784 /** 785 * hid_parse_report - parse device report 786 * 787 * @device: hid device 788 * @start: report start 789 * @size: report size 790 * 791 * Allocate the device report as read by the bus driver. This function should 792 * only be called from parse() in ll drivers. 793 */ 794 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size) 795 { 796 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL); 797 if (!hid->dev_rdesc) 798 return -ENOMEM; 799 hid->dev_rsize = size; 800 return 0; 801 } 802 EXPORT_SYMBOL_GPL(hid_parse_report); 803 804 /** 805 * hid_open_report - open a driver-specific device report 806 * 807 * @device: hid device 808 * 809 * Parse a report description into a hid_device structure. Reports are 810 * enumerated, fields are attached to these reports. 811 * 0 returned on success, otherwise nonzero error value. 812 * 813 * This function (or the equivalent hid_parse() macro) should only be 814 * called from probe() in drivers, before starting the device. 815 */ 816 int hid_open_report(struct hid_device *device) 817 { 818 struct hid_parser *parser; 819 struct hid_item item; 820 unsigned int size; 821 __u8 *start; 822 __u8 *buf; 823 __u8 *end; 824 int ret; 825 static int (*dispatch_type[])(struct hid_parser *parser, 826 struct hid_item *item) = { 827 hid_parser_main, 828 hid_parser_global, 829 hid_parser_local, 830 hid_parser_reserved 831 }; 832 833 if (WARN_ON(device->status & HID_STAT_PARSED)) 834 return -EBUSY; 835 836 start = device->dev_rdesc; 837 if (WARN_ON(!start)) 838 return -ENODEV; 839 size = device->dev_rsize; 840 841 buf = kmemdup(start, size, GFP_KERNEL); 842 if (buf == NULL) 843 return -ENOMEM; 844 845 if (device->driver->report_fixup) 846 start = device->driver->report_fixup(device, buf, &size); 847 else 848 start = buf; 849 850 start = kmemdup(start, size, GFP_KERNEL); 851 kfree(buf); 852 if (start == NULL) 853 return -ENOMEM; 854 855 device->rdesc = start; 856 device->rsize = size; 857 858 parser = vzalloc(sizeof(struct hid_parser)); 859 if (!parser) { 860 ret = -ENOMEM; 861 goto err; 862 } 863 864 parser->device = device; 865 866 end = start + size; 867 868 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS, 869 sizeof(struct hid_collection), GFP_KERNEL); 870 if (!device->collection) { 871 ret = -ENOMEM; 872 goto err; 873 } 874 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS; 875 876 ret = -EINVAL; 877 while ((start = fetch_item(start, end, &item)) != NULL) { 878 879 if (item.format != HID_ITEM_FORMAT_SHORT) { 880 hid_err(device, "unexpected long global item\n"); 881 goto err; 882 } 883 884 if (dispatch_type[item.type](parser, &item)) { 885 hid_err(device, "item %u %u %u %u parsing failed\n", 886 item.format, (unsigned)item.size, 887 (unsigned)item.type, (unsigned)item.tag); 888 goto err; 889 } 890 891 if (start == end) { 892 if (parser->collection_stack_ptr) { 893 hid_err(device, "unbalanced collection at end of report description\n"); 894 goto err; 895 } 896 if (parser->local.delimiter_depth) { 897 hid_err(device, "unbalanced delimiter at end of report description\n"); 898 goto err; 899 } 900 vfree(parser); 901 device->status |= HID_STAT_PARSED; 902 return 0; 903 } 904 } 905 906 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start)); 907 err: 908 vfree(parser); 909 hid_close_report(device); 910 return ret; 911 } 912 EXPORT_SYMBOL_GPL(hid_open_report); 913 914 /* 915 * Convert a signed n-bit integer to signed 32-bit integer. Common 916 * cases are done through the compiler, the screwed things has to be 917 * done by hand. 918 */ 919 920 static s32 snto32(__u32 value, unsigned n) 921 { 922 switch (n) { 923 case 8: return ((__s8)value); 924 case 16: return ((__s16)value); 925 case 32: return ((__s32)value); 926 } 927 return value & (1 << (n - 1)) ? value | (-1 << n) : value; 928 } 929 930 s32 hid_snto32(__u32 value, unsigned n) 931 { 932 return snto32(value, n); 933 } 934 EXPORT_SYMBOL_GPL(hid_snto32); 935 936 /* 937 * Convert a signed 32-bit integer to a signed n-bit integer. 938 */ 939 940 static u32 s32ton(__s32 value, unsigned n) 941 { 942 s32 a = value >> (n - 1); 943 if (a && a != -1) 944 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1; 945 return value & ((1 << n) - 1); 946 } 947 948 /* 949 * Extract/implement a data field from/to a little endian report (bit array). 950 * 951 * Code sort-of follows HID spec: 952 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf 953 * 954 * While the USB HID spec allows unlimited length bit fields in "report 955 * descriptors", most devices never use more than 16 bits. 956 * One model of UPS is claimed to report "LINEV" as a 32-bit field. 957 * Search linux-kernel and linux-usb-devel archives for "hid-core extract". 958 */ 959 960 static __u32 extract(const struct hid_device *hid, __u8 *report, 961 unsigned offset, unsigned n) 962 { 963 u64 x; 964 965 if (n > 32) 966 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n", 967 n, current->comm); 968 969 report += offset >> 3; /* adjust byte index */ 970 offset &= 7; /* now only need bit offset into one byte */ 971 x = get_unaligned_le64(report); 972 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */ 973 return (u32) x; 974 } 975 976 /* 977 * "implement" : set bits in a little endian bit stream. 978 * Same concepts as "extract" (see comments above). 979 * The data mangled in the bit stream remains in little endian 980 * order the whole time. It make more sense to talk about 981 * endianness of register values by considering a register 982 * a "cached" copy of the little endiad bit stream. 983 */ 984 static void implement(const struct hid_device *hid, __u8 *report, 985 unsigned offset, unsigned n, __u32 value) 986 { 987 u64 x; 988 u64 m = (1ULL << n) - 1; 989 990 if (n > 32) 991 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n", 992 __func__, n, current->comm); 993 994 if (value > m) 995 hid_warn(hid, "%s() called with too large value %d! (%s)\n", 996 __func__, value, current->comm); 997 WARN_ON(value > m); 998 value &= m; 999 1000 report += offset >> 3; 1001 offset &= 7; 1002 1003 x = get_unaligned_le64(report); 1004 x &= ~(m << offset); 1005 x |= ((u64)value) << offset; 1006 put_unaligned_le64(x, report); 1007 } 1008 1009 /* 1010 * Search an array for a value. 1011 */ 1012 1013 static int search(__s32 *array, __s32 value, unsigned n) 1014 { 1015 while (n--) { 1016 if (*array++ == value) 1017 return 0; 1018 } 1019 return -1; 1020 } 1021 1022 /** 1023 * hid_match_report - check if driver's raw_event should be called 1024 * 1025 * @hid: hid device 1026 * @report_type: type to match against 1027 * 1028 * compare hid->driver->report_table->report_type to report->type 1029 */ 1030 static int hid_match_report(struct hid_device *hid, struct hid_report *report) 1031 { 1032 const struct hid_report_id *id = hid->driver->report_table; 1033 1034 if (!id) /* NULL means all */ 1035 return 1; 1036 1037 for (; id->report_type != HID_TERMINATOR; id++) 1038 if (id->report_type == HID_ANY_ID || 1039 id->report_type == report->type) 1040 return 1; 1041 return 0; 1042 } 1043 1044 /** 1045 * hid_match_usage - check if driver's event should be called 1046 * 1047 * @hid: hid device 1048 * @usage: usage to match against 1049 * 1050 * compare hid->driver->usage_table->usage_{type,code} to 1051 * usage->usage_{type,code} 1052 */ 1053 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage) 1054 { 1055 const struct hid_usage_id *id = hid->driver->usage_table; 1056 1057 if (!id) /* NULL means all */ 1058 return 1; 1059 1060 for (; id->usage_type != HID_ANY_ID - 1; id++) 1061 if ((id->usage_hid == HID_ANY_ID || 1062 id->usage_hid == usage->hid) && 1063 (id->usage_type == HID_ANY_ID || 1064 id->usage_type == usage->type) && 1065 (id->usage_code == HID_ANY_ID || 1066 id->usage_code == usage->code)) 1067 return 1; 1068 return 0; 1069 } 1070 1071 static void hid_process_event(struct hid_device *hid, struct hid_field *field, 1072 struct hid_usage *usage, __s32 value, int interrupt) 1073 { 1074 struct hid_driver *hdrv = hid->driver; 1075 int ret; 1076 1077 if (!list_empty(&hid->debug_list)) 1078 hid_dump_input(hid, usage, value); 1079 1080 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) { 1081 ret = hdrv->event(hid, field, usage, value); 1082 if (ret != 0) { 1083 if (ret < 0) 1084 hid_err(hid, "%s's event failed with %d\n", 1085 hdrv->name, ret); 1086 return; 1087 } 1088 } 1089 1090 if (hid->claimed & HID_CLAIMED_INPUT) 1091 hidinput_hid_event(hid, field, usage, value); 1092 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event) 1093 hid->hiddev_hid_event(hid, field, usage, value); 1094 } 1095 1096 /* 1097 * Analyse a received field, and fetch the data from it. The field 1098 * content is stored for next report processing (we do differential 1099 * reporting to the layer). 1100 */ 1101 1102 static void hid_input_field(struct hid_device *hid, struct hid_field *field, 1103 __u8 *data, int interrupt) 1104 { 1105 unsigned n; 1106 unsigned count = field->report_count; 1107 unsigned offset = field->report_offset; 1108 unsigned size = field->report_size; 1109 __s32 min = field->logical_minimum; 1110 __s32 max = field->logical_maximum; 1111 __s32 *value; 1112 1113 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC); 1114 if (!value) 1115 return; 1116 1117 for (n = 0; n < count; n++) { 1118 1119 value[n] = min < 0 ? 1120 snto32(extract(hid, data, offset + n * size, size), 1121 size) : 1122 extract(hid, data, offset + n * size, size); 1123 1124 /* Ignore report if ErrorRollOver */ 1125 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) && 1126 value[n] >= min && value[n] <= max && 1127 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1) 1128 goto exit; 1129 } 1130 1131 for (n = 0; n < count; n++) { 1132 1133 if (HID_MAIN_ITEM_VARIABLE & field->flags) { 1134 hid_process_event(hid, field, &field->usage[n], value[n], interrupt); 1135 continue; 1136 } 1137 1138 if (field->value[n] >= min && field->value[n] <= max 1139 && field->usage[field->value[n] - min].hid 1140 && search(value, field->value[n], count)) 1141 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt); 1142 1143 if (value[n] >= min && value[n] <= max 1144 && field->usage[value[n] - min].hid 1145 && search(field->value, value[n], count)) 1146 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt); 1147 } 1148 1149 memcpy(field->value, value, count * sizeof(__s32)); 1150 exit: 1151 kfree(value); 1152 } 1153 1154 /* 1155 * Output the field into the report. 1156 */ 1157 1158 static void hid_output_field(const struct hid_device *hid, 1159 struct hid_field *field, __u8 *data) 1160 { 1161 unsigned count = field->report_count; 1162 unsigned offset = field->report_offset; 1163 unsigned size = field->report_size; 1164 unsigned n; 1165 1166 for (n = 0; n < count; n++) { 1167 if (field->logical_minimum < 0) /* signed values */ 1168 implement(hid, data, offset + n * size, size, 1169 s32ton(field->value[n], size)); 1170 else /* unsigned values */ 1171 implement(hid, data, offset + n * size, size, 1172 field->value[n]); 1173 } 1174 } 1175 1176 /* 1177 * Create a report. 'data' has to be allocated using 1178 * hid_alloc_report_buf() so that it has proper size. 1179 */ 1180 1181 void hid_output_report(struct hid_report *report, __u8 *data) 1182 { 1183 unsigned n; 1184 1185 if (report->id > 0) 1186 *data++ = report->id; 1187 1188 memset(data, 0, ((report->size - 1) >> 3) + 1); 1189 for (n = 0; n < report->maxfield; n++) 1190 hid_output_field(report->device, report->field[n], data); 1191 } 1192 EXPORT_SYMBOL_GPL(hid_output_report); 1193 1194 /* 1195 * Allocator for buffer that is going to be passed to hid_output_report() 1196 */ 1197 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags) 1198 { 1199 /* 1200 * 7 extra bytes are necessary to achieve proper functionality 1201 * of implement() working on 8 byte chunks 1202 */ 1203 1204 int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7; 1205 1206 return kmalloc(len, flags); 1207 } 1208 EXPORT_SYMBOL_GPL(hid_alloc_report_buf); 1209 1210 /* 1211 * Set a field value. The report this field belongs to has to be 1212 * created and transferred to the device, to set this value in the 1213 * device. 1214 */ 1215 1216 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value) 1217 { 1218 unsigned size; 1219 1220 if (!field) 1221 return -1; 1222 1223 size = field->report_size; 1224 1225 hid_dump_input(field->report->device, field->usage + offset, value); 1226 1227 if (offset >= field->report_count) { 1228 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n", 1229 offset, field->report_count); 1230 return -1; 1231 } 1232 if (field->logical_minimum < 0) { 1233 if (value != snto32(s32ton(value, size), size)) { 1234 hid_err(field->report->device, "value %d is out of range\n", value); 1235 return -1; 1236 } 1237 } 1238 field->value[offset] = value; 1239 return 0; 1240 } 1241 EXPORT_SYMBOL_GPL(hid_set_field); 1242 1243 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum, 1244 const u8 *data) 1245 { 1246 struct hid_report *report; 1247 unsigned int n = 0; /* Normally report number is 0 */ 1248 1249 /* Device uses numbered reports, data[0] is report number */ 1250 if (report_enum->numbered) 1251 n = *data; 1252 1253 report = report_enum->report_id_hash[n]; 1254 if (report == NULL) 1255 dbg_hid("undefined report_id %u received\n", n); 1256 1257 return report; 1258 } 1259 1260 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size, 1261 int interrupt) 1262 { 1263 struct hid_report_enum *report_enum = hid->report_enum + type; 1264 struct hid_report *report; 1265 struct hid_driver *hdrv; 1266 unsigned int a; 1267 int rsize, csize = size; 1268 u8 *cdata = data; 1269 int ret = 0; 1270 1271 report = hid_get_report(report_enum, data); 1272 if (!report) 1273 goto out; 1274 1275 if (report_enum->numbered) { 1276 cdata++; 1277 csize--; 1278 } 1279 1280 rsize = ((report->size - 1) >> 3) + 1; 1281 1282 if (rsize > HID_MAX_BUFFER_SIZE) 1283 rsize = HID_MAX_BUFFER_SIZE; 1284 1285 if (csize < rsize) { 1286 dbg_hid("report %d is too short, (%d < %d)\n", report->id, 1287 csize, rsize); 1288 memset(cdata + csize, 0, rsize - csize); 1289 } 1290 1291 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event) 1292 hid->hiddev_report_event(hid, report); 1293 if (hid->claimed & HID_CLAIMED_HIDRAW) { 1294 ret = hidraw_report_event(hid, data, size); 1295 if (ret) 1296 goto out; 1297 } 1298 1299 if (hid->claimed != HID_CLAIMED_HIDRAW) { 1300 for (a = 0; a < report->maxfield; a++) 1301 hid_input_field(hid, report->field[a], cdata, interrupt); 1302 hdrv = hid->driver; 1303 if (hdrv && hdrv->report) 1304 hdrv->report(hid, report); 1305 } 1306 1307 if (hid->claimed & HID_CLAIMED_INPUT) 1308 hidinput_report_event(hid, report); 1309 out: 1310 return ret; 1311 } 1312 EXPORT_SYMBOL_GPL(hid_report_raw_event); 1313 1314 /** 1315 * hid_input_report - report data from lower layer (usb, bt...) 1316 * 1317 * @hid: hid device 1318 * @type: HID report type (HID_*_REPORT) 1319 * @data: report contents 1320 * @size: size of data parameter 1321 * @interrupt: distinguish between interrupt and control transfers 1322 * 1323 * This is data entry for lower layers. 1324 */ 1325 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt) 1326 { 1327 struct hid_report_enum *report_enum; 1328 struct hid_driver *hdrv; 1329 struct hid_report *report; 1330 int ret = 0; 1331 1332 if (!hid) 1333 return -ENODEV; 1334 1335 if (down_trylock(&hid->driver_input_lock)) 1336 return -EBUSY; 1337 1338 if (!hid->driver) { 1339 ret = -ENODEV; 1340 goto unlock; 1341 } 1342 report_enum = hid->report_enum + type; 1343 hdrv = hid->driver; 1344 1345 if (!size) { 1346 dbg_hid("empty report\n"); 1347 ret = -1; 1348 goto unlock; 1349 } 1350 1351 /* Avoid unnecessary overhead if debugfs is disabled */ 1352 if (!list_empty(&hid->debug_list)) 1353 hid_dump_report(hid, type, data, size); 1354 1355 report = hid_get_report(report_enum, data); 1356 1357 if (!report) { 1358 ret = -1; 1359 goto unlock; 1360 } 1361 1362 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) { 1363 ret = hdrv->raw_event(hid, report, data, size); 1364 if (ret < 0) { 1365 ret = ret < 0 ? ret : 0; 1366 goto unlock; 1367 } 1368 } 1369 1370 ret = hid_report_raw_event(hid, type, data, size, interrupt); 1371 1372 unlock: 1373 up(&hid->driver_input_lock); 1374 return ret; 1375 } 1376 EXPORT_SYMBOL_GPL(hid_input_report); 1377 1378 static bool hid_match_one_id(struct hid_device *hdev, 1379 const struct hid_device_id *id) 1380 { 1381 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) && 1382 (id->group == HID_GROUP_ANY || id->group == hdev->group) && 1383 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) && 1384 (id->product == HID_ANY_ID || id->product == hdev->product); 1385 } 1386 1387 const struct hid_device_id *hid_match_id(struct hid_device *hdev, 1388 const struct hid_device_id *id) 1389 { 1390 for (; id->bus; id++) 1391 if (hid_match_one_id(hdev, id)) 1392 return id; 1393 1394 return NULL; 1395 } 1396 1397 static const struct hid_device_id hid_hiddev_list[] = { 1398 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) }, 1399 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) }, 1400 { } 1401 }; 1402 1403 static bool hid_hiddev(struct hid_device *hdev) 1404 { 1405 return !!hid_match_id(hdev, hid_hiddev_list); 1406 } 1407 1408 1409 static ssize_t 1410 read_report_descriptor(struct file *filp, struct kobject *kobj, 1411 struct bin_attribute *attr, 1412 char *buf, loff_t off, size_t count) 1413 { 1414 struct device *dev = container_of(kobj, struct device, kobj); 1415 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1416 1417 if (off >= hdev->rsize) 1418 return 0; 1419 1420 if (off + count > hdev->rsize) 1421 count = hdev->rsize - off; 1422 1423 memcpy(buf, hdev->rdesc + off, count); 1424 1425 return count; 1426 } 1427 1428 static struct bin_attribute dev_bin_attr_report_desc = { 1429 .attr = { .name = "report_descriptor", .mode = 0444 }, 1430 .read = read_report_descriptor, 1431 .size = HID_MAX_DESCRIPTOR_SIZE, 1432 }; 1433 1434 int hid_connect(struct hid_device *hdev, unsigned int connect_mask) 1435 { 1436 static const char *types[] = { "Device", "Pointer", "Mouse", "Device", 1437 "Joystick", "Gamepad", "Keyboard", "Keypad", 1438 "Multi-Axis Controller" 1439 }; 1440 const char *type, *bus; 1441 char buf[64]; 1442 unsigned int i; 1443 int len; 1444 int ret; 1445 1446 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE) 1447 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV); 1448 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE) 1449 connect_mask |= HID_CONNECT_HIDINPUT_FORCE; 1450 if (hdev->bus != BUS_USB) 1451 connect_mask &= ~HID_CONNECT_HIDDEV; 1452 if (hid_hiddev(hdev)) 1453 connect_mask |= HID_CONNECT_HIDDEV_FORCE; 1454 1455 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev, 1456 connect_mask & HID_CONNECT_HIDINPUT_FORCE)) 1457 hdev->claimed |= HID_CLAIMED_INPUT; 1458 1459 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect && 1460 !hdev->hiddev_connect(hdev, 1461 connect_mask & HID_CONNECT_HIDDEV_FORCE)) 1462 hdev->claimed |= HID_CLAIMED_HIDDEV; 1463 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev)) 1464 hdev->claimed |= HID_CLAIMED_HIDRAW; 1465 1466 /* Drivers with the ->raw_event callback set are not required to connect 1467 * to any other listener. */ 1468 if (!hdev->claimed && !hdev->driver->raw_event) { 1469 hid_err(hdev, "device has no listeners, quitting\n"); 1470 return -ENODEV; 1471 } 1472 1473 if ((hdev->claimed & HID_CLAIMED_INPUT) && 1474 (connect_mask & HID_CONNECT_FF) && hdev->ff_init) 1475 hdev->ff_init(hdev); 1476 1477 len = 0; 1478 if (hdev->claimed & HID_CLAIMED_INPUT) 1479 len += sprintf(buf + len, "input"); 1480 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1481 len += sprintf(buf + len, "%shiddev%d", len ? "," : "", 1482 hdev->minor); 1483 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1484 len += sprintf(buf + len, "%shidraw%d", len ? "," : "", 1485 ((struct hidraw *)hdev->hidraw)->minor); 1486 1487 type = "Device"; 1488 for (i = 0; i < hdev->maxcollection; i++) { 1489 struct hid_collection *col = &hdev->collection[i]; 1490 if (col->type == HID_COLLECTION_APPLICATION && 1491 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK && 1492 (col->usage & 0xffff) < ARRAY_SIZE(types)) { 1493 type = types[col->usage & 0xffff]; 1494 break; 1495 } 1496 } 1497 1498 switch (hdev->bus) { 1499 case BUS_USB: 1500 bus = "USB"; 1501 break; 1502 case BUS_BLUETOOTH: 1503 bus = "BLUETOOTH"; 1504 break; 1505 default: 1506 bus = "<UNKNOWN>"; 1507 } 1508 1509 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc); 1510 if (ret) 1511 hid_warn(hdev, 1512 "can't create sysfs report descriptor attribute err: %d\n", ret); 1513 1514 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n", 1515 buf, bus, hdev->version >> 8, hdev->version & 0xff, 1516 type, hdev->name, hdev->phys); 1517 1518 return 0; 1519 } 1520 EXPORT_SYMBOL_GPL(hid_connect); 1521 1522 void hid_disconnect(struct hid_device *hdev) 1523 { 1524 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc); 1525 if (hdev->claimed & HID_CLAIMED_INPUT) 1526 hidinput_disconnect(hdev); 1527 if (hdev->claimed & HID_CLAIMED_HIDDEV) 1528 hdev->hiddev_disconnect(hdev); 1529 if (hdev->claimed & HID_CLAIMED_HIDRAW) 1530 hidraw_disconnect(hdev); 1531 } 1532 EXPORT_SYMBOL_GPL(hid_disconnect); 1533 1534 /* 1535 * A list of devices for which there is a specialized driver on HID bus. 1536 * 1537 * Please note that for multitouch devices (driven by hid-multitouch driver), 1538 * there is a proper autodetection and autoloading in place (based on presence 1539 * of HID_DG_CONTACTID), so those devices don't need to be added to this list, 1540 * as we are doing the right thing in hid_scan_usage(). 1541 * 1542 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type 1543 * physical is found inside a usage page of type sensor, hid-sensor-hub will be 1544 * used as a driver. See hid_scan_report(). 1545 */ 1546 static const struct hid_device_id hid_have_special_driver[] = { 1547 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) }, 1548 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) }, 1549 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) }, 1550 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) }, 1551 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) }, 1552 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) }, 1553 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) }, 1554 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 1555 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 1556 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 1557 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 1558 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 1559 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 1560 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 1561 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 1562 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 1563 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 1564 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 1565 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) }, 1566 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) }, 1567 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) }, 1568 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) }, 1569 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) }, 1570 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) }, 1571 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 1572 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 1573 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 1574 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) }, 1575 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) }, 1576 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) }, 1577 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) }, 1578 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) }, 1579 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) }, 1580 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) }, 1581 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) }, 1582 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 1583 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 1584 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 1585 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 1586 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 1587 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 1588 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 1589 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 1590 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 1591 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 1592 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 1593 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 1594 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 1595 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 1596 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 1597 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 1598 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 1599 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 1600 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) }, 1601 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) }, 1602 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) }, 1603 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) }, 1604 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) }, 1605 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) }, 1606 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) }, 1607 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) }, 1608 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) }, 1609 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) }, 1610 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) }, 1611 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) }, 1612 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, 1613 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, 1614 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, 1615 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, 1616 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, 1617 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, 1618 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) }, 1619 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) }, 1620 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) }, 1621 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) }, 1622 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) }, 1623 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) }, 1624 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) }, 1625 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) }, 1626 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 1627 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 1628 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) }, 1629 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) }, 1630 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) }, 1631 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) }, 1632 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, 1633 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, 1634 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, 1635 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) }, 1636 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) }, 1637 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) }, 1638 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, 1639 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, 1640 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, 1641 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, 1642 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) }, 1643 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) }, 1644 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) }, 1645 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) }, 1646 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) }, 1647 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) }, 1648 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) }, 1649 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) }, 1650 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, 1651 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) }, 1652 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) }, 1653 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) }, 1654 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) }, 1655 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) }, 1656 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) }, 1657 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) }, 1658 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) }, 1659 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) }, 1660 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) }, 1661 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) }, 1662 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) }, 1663 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) }, 1664 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) }, 1665 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) }, 1666 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) }, 1667 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) }, 1668 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) }, 1669 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) }, 1670 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) }, 1671 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) }, 1672 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) }, 1673 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) }, 1674 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) }, 1675 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD) 1676 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) }, 1677 #endif 1678 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) }, 1679 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) }, 1680 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) }, 1681 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) }, 1682 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) }, 1683 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) }, 1684 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) }, 1685 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) }, 1686 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) }, 1687 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) }, 1688 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) }, 1689 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) }, 1690 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) }, 1691 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) }, 1692 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) }, 1693 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) }, 1694 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) }, 1695 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) }, 1696 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) }, 1697 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) }, 1698 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) }, 1699 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) }, 1700 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) }, 1701 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) }, 1702 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) }, 1703 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ) 1704 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) }, 1705 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) }, 1706 #endif 1707 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) }, 1708 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, 1709 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, 1710 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, 1711 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, 1712 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, 1713 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) }, 1714 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, 1715 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, 1716 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) }, 1717 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, 1718 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) }, 1719 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) }, 1720 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) }, 1721 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) }, 1722 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) }, 1723 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) }, 1724 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) }, 1725 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) }, 1726 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) }, 1727 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) }, 1728 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) }, 1729 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) }, 1730 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) }, 1731 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) }, 1732 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) }, 1733 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) }, 1734 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) }, 1735 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) }, 1736 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) }, 1737 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) }, 1738 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) }, 1739 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) }, 1740 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) }, 1741 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) }, 1742 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) }, 1743 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, 1744 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) }, 1745 #if IS_ENABLED(CONFIG_HID_ROCCAT) 1746 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, 1747 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) }, 1748 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) }, 1749 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) }, 1750 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) }, 1751 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) }, 1752 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) }, 1753 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) }, 1754 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) }, 1755 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) }, 1756 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) }, 1757 #endif 1758 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) }, 1759 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, 1760 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) }, 1761 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) }, 1762 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) }, 1763 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) }, 1764 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) }, 1765 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1766 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) }, 1767 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, 1768 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) }, 1769 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) }, 1770 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) }, 1771 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) }, 1772 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) }, 1773 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) }, 1774 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) }, 1775 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) }, 1776 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) }, 1777 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) }, 1778 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) }, 1779 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) }, 1780 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) }, 1781 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) }, 1782 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) }, 1783 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) }, 1784 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) }, 1785 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) }, 1786 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) }, 1787 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) }, 1788 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) }, 1789 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) }, 1790 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) }, 1791 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) }, 1792 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) }, 1793 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) }, 1794 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) }, 1795 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) }, 1796 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) }, 1797 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) }, 1798 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) }, 1799 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) }, 1800 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) }, 1801 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) }, 1802 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) }, 1803 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) }, 1804 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) }, 1805 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) }, 1806 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) }, 1807 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) }, 1808 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) }, 1809 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) }, 1810 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) }, 1811 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) }, 1812 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) }, 1813 1814 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) }, 1815 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) }, 1816 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) }, 1817 { } 1818 }; 1819 1820 struct hid_dynid { 1821 struct list_head list; 1822 struct hid_device_id id; 1823 }; 1824 1825 /** 1826 * store_new_id - add a new HID device ID to this driver and re-probe devices 1827 * @driver: target device driver 1828 * @buf: buffer for scanning device ID data 1829 * @count: input size 1830 * 1831 * Adds a new dynamic hid device ID to this driver, 1832 * and causes the driver to probe for all devices again. 1833 */ 1834 static ssize_t store_new_id(struct device_driver *drv, const char *buf, 1835 size_t count) 1836 { 1837 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1838 struct hid_dynid *dynid; 1839 __u32 bus, vendor, product; 1840 unsigned long driver_data = 0; 1841 int ret; 1842 1843 ret = sscanf(buf, "%x %x %x %lx", 1844 &bus, &vendor, &product, &driver_data); 1845 if (ret < 3) 1846 return -EINVAL; 1847 1848 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL); 1849 if (!dynid) 1850 return -ENOMEM; 1851 1852 dynid->id.bus = bus; 1853 dynid->id.group = HID_GROUP_ANY; 1854 dynid->id.vendor = vendor; 1855 dynid->id.product = product; 1856 dynid->id.driver_data = driver_data; 1857 1858 spin_lock(&hdrv->dyn_lock); 1859 list_add_tail(&dynid->list, &hdrv->dyn_list); 1860 spin_unlock(&hdrv->dyn_lock); 1861 1862 ret = driver_attach(&hdrv->driver); 1863 1864 return ret ? : count; 1865 } 1866 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id); 1867 1868 static void hid_free_dynids(struct hid_driver *hdrv) 1869 { 1870 struct hid_dynid *dynid, *n; 1871 1872 spin_lock(&hdrv->dyn_lock); 1873 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) { 1874 list_del(&dynid->list); 1875 kfree(dynid); 1876 } 1877 spin_unlock(&hdrv->dyn_lock); 1878 } 1879 1880 static const struct hid_device_id *hid_match_device(struct hid_device *hdev, 1881 struct hid_driver *hdrv) 1882 { 1883 struct hid_dynid *dynid; 1884 1885 spin_lock(&hdrv->dyn_lock); 1886 list_for_each_entry(dynid, &hdrv->dyn_list, list) { 1887 if (hid_match_one_id(hdev, &dynid->id)) { 1888 spin_unlock(&hdrv->dyn_lock); 1889 return &dynid->id; 1890 } 1891 } 1892 spin_unlock(&hdrv->dyn_lock); 1893 1894 return hid_match_id(hdev, hdrv->id_table); 1895 } 1896 1897 static int hid_bus_match(struct device *dev, struct device_driver *drv) 1898 { 1899 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver); 1900 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1901 1902 return hid_match_device(hdev, hdrv) != NULL; 1903 } 1904 1905 static int hid_device_probe(struct device *dev) 1906 { 1907 struct hid_driver *hdrv = container_of(dev->driver, 1908 struct hid_driver, driver); 1909 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1910 const struct hid_device_id *id; 1911 int ret = 0; 1912 1913 if (down_interruptible(&hdev->driver_lock)) 1914 return -EINTR; 1915 if (down_interruptible(&hdev->driver_input_lock)) { 1916 ret = -EINTR; 1917 goto unlock_driver_lock; 1918 } 1919 hdev->io_started = false; 1920 1921 if (!hdev->driver) { 1922 id = hid_match_device(hdev, hdrv); 1923 if (id == NULL) { 1924 ret = -ENODEV; 1925 goto unlock; 1926 } 1927 1928 hdev->driver = hdrv; 1929 if (hdrv->probe) { 1930 ret = hdrv->probe(hdev, id); 1931 } else { /* default probe */ 1932 ret = hid_open_report(hdev); 1933 if (!ret) 1934 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); 1935 } 1936 if (ret) { 1937 hid_close_report(hdev); 1938 hdev->driver = NULL; 1939 } 1940 } 1941 unlock: 1942 if (!hdev->io_started) 1943 up(&hdev->driver_input_lock); 1944 unlock_driver_lock: 1945 up(&hdev->driver_lock); 1946 return ret; 1947 } 1948 1949 static int hid_device_remove(struct device *dev) 1950 { 1951 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1952 struct hid_driver *hdrv; 1953 int ret = 0; 1954 1955 if (down_interruptible(&hdev->driver_lock)) 1956 return -EINTR; 1957 if (down_interruptible(&hdev->driver_input_lock)) { 1958 ret = -EINTR; 1959 goto unlock_driver_lock; 1960 } 1961 hdev->io_started = false; 1962 1963 hdrv = hdev->driver; 1964 if (hdrv) { 1965 if (hdrv->remove) 1966 hdrv->remove(hdev); 1967 else /* default remove */ 1968 hid_hw_stop(hdev); 1969 hid_close_report(hdev); 1970 hdev->driver = NULL; 1971 } 1972 1973 if (!hdev->io_started) 1974 up(&hdev->driver_input_lock); 1975 unlock_driver_lock: 1976 up(&hdev->driver_lock); 1977 return ret; 1978 } 1979 1980 static ssize_t modalias_show(struct device *dev, struct device_attribute *a, 1981 char *buf) 1982 { 1983 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 1984 int len; 1985 1986 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n", 1987 hdev->bus, hdev->group, hdev->vendor, hdev->product); 1988 1989 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; 1990 } 1991 static DEVICE_ATTR_RO(modalias); 1992 1993 static struct attribute *hid_dev_attrs[] = { 1994 &dev_attr_modalias.attr, 1995 NULL, 1996 }; 1997 ATTRIBUTE_GROUPS(hid_dev); 1998 1999 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env) 2000 { 2001 struct hid_device *hdev = container_of(dev, struct hid_device, dev); 2002 2003 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X", 2004 hdev->bus, hdev->vendor, hdev->product)) 2005 return -ENOMEM; 2006 2007 if (add_uevent_var(env, "HID_NAME=%s", hdev->name)) 2008 return -ENOMEM; 2009 2010 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys)) 2011 return -ENOMEM; 2012 2013 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq)) 2014 return -ENOMEM; 2015 2016 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X", 2017 hdev->bus, hdev->group, hdev->vendor, hdev->product)) 2018 return -ENOMEM; 2019 2020 return 0; 2021 } 2022 2023 static struct bus_type hid_bus_type = { 2024 .name = "hid", 2025 .dev_groups = hid_dev_groups, 2026 .match = hid_bus_match, 2027 .probe = hid_device_probe, 2028 .remove = hid_device_remove, 2029 .uevent = hid_uevent, 2030 }; 2031 2032 /* a list of devices that shouldn't be handled by HID core at all */ 2033 static const struct hid_device_id hid_ignore_list[] = { 2034 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) }, 2035 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) }, 2036 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) }, 2037 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) }, 2038 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) }, 2039 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) }, 2040 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) }, 2041 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) }, 2042 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) }, 2043 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) }, 2044 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) }, 2045 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) }, 2046 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)}, 2047 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)}, 2048 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, 2049 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) }, 2050 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, 2051 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, 2052 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, 2053 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) }, 2054 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) }, 2055 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) }, 2056 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) }, 2057 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) }, 2058 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) }, 2059 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) }, 2060 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) }, 2061 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) }, 2062 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) }, 2063 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) }, 2064 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) }, 2065 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) }, 2066 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) }, 2067 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) }, 2068 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) }, 2069 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) }, 2070 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) }, 2071 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) }, 2072 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) }, 2073 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) }, 2074 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) }, 2075 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) }, 2076 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) }, 2077 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) }, 2078 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) }, 2079 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) }, 2080 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) }, 2081 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) }, 2082 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) }, 2083 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) }, 2084 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) }, 2085 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) }, 2086 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) }, 2087 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) }, 2088 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) }, 2089 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) }, 2090 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) }, 2091 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) }, 2092 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) }, 2093 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) }, 2094 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) }, 2095 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) }, 2096 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) }, 2097 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) }, 2098 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) }, 2099 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) }, 2100 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) }, 2101 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) }, 2102 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) }, 2103 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) }, 2104 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) }, 2105 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) }, 2106 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) }, 2107 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) }, 2108 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) }, 2109 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) }, 2110 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) }, 2111 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) }, 2112 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) }, 2113 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) }, 2114 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) }, 2115 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) }, 2116 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) }, 2117 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) }, 2118 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) }, 2119 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) }, 2120 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) }, 2121 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) }, 2122 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) }, 2123 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) }, 2124 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) }, 2125 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) }, 2126 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) }, 2127 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) }, 2128 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) }, 2129 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) }, 2130 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) }, 2131 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) }, 2132 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) }, 2133 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) }, 2134 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) }, 2135 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) }, 2136 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) }, 2137 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) }, 2138 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) }, 2139 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) }, 2140 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) }, 2141 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) }, 2142 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) }, 2143 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) }, 2144 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) }, 2145 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) }, 2146 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) }, 2147 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) }, 2148 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) }, 2149 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) }, 2150 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) }, 2151 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) }, 2152 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) }, 2153 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) }, 2154 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) }, 2155 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) }, 2156 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) }, 2157 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) }, 2158 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) }, 2159 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) }, 2160 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) }, 2161 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) }, 2162 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) }, 2163 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) }, 2164 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) }, 2165 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) }, 2166 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) }, 2167 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) }, 2168 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) }, 2169 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) }, 2170 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) }, 2171 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) }, 2172 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) }, 2173 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) }, 2174 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) }, 2175 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) }, 2176 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) }, 2177 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) }, 2178 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) }, 2179 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) }, 2180 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) }, 2181 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) }, 2182 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) }, 2183 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) }, 2184 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) }, 2185 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) }, 2186 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) }, 2187 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) }, 2188 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) }, 2189 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE) 2190 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) }, 2191 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) }, 2192 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) }, 2193 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) }, 2194 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) }, 2195 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) }, 2196 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) }, 2197 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) }, 2198 #endif 2199 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) }, 2200 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) }, 2201 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) }, 2202 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) }, 2203 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) }, 2204 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) }, 2205 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) }, 2206 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) }, 2207 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) }, 2208 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) }, 2209 { } 2210 }; 2211 2212 /** 2213 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer 2214 * 2215 * There are composite devices for which we want to ignore only a certain 2216 * interface. This is a list of devices for which only the mouse interface will 2217 * be ignored. This allows a dedicated driver to take care of the interface. 2218 */ 2219 static const struct hid_device_id hid_mouse_ignore_list[] = { 2220 /* appletouch driver */ 2221 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) }, 2222 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) }, 2223 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) }, 2224 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) }, 2225 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) }, 2226 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) }, 2227 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) }, 2228 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) }, 2229 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) }, 2230 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) }, 2231 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) }, 2232 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) }, 2233 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) }, 2234 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) }, 2235 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) }, 2236 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) }, 2237 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) }, 2238 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) }, 2239 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) }, 2240 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) }, 2241 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) }, 2242 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) }, 2243 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) }, 2244 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) }, 2245 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) }, 2246 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) }, 2247 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) }, 2248 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) }, 2249 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) }, 2250 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) }, 2251 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) }, 2252 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) }, 2253 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) }, 2254 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) }, 2255 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) }, 2256 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) }, 2257 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) }, 2258 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) }, 2259 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) }, 2260 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) }, 2261 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) }, 2262 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) }, 2263 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) }, 2264 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) }, 2265 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) }, 2266 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) }, 2267 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) }, 2268 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) }, 2269 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) }, 2270 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) }, 2271 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) }, 2272 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) }, 2273 { } 2274 }; 2275 2276 bool hid_ignore(struct hid_device *hdev) 2277 { 2278 if (hdev->quirks & HID_QUIRK_NO_IGNORE) 2279 return false; 2280 if (hdev->quirks & HID_QUIRK_IGNORE) 2281 return true; 2282 2283 switch (hdev->vendor) { 2284 case USB_VENDOR_ID_CODEMERCS: 2285 /* ignore all Code Mercenaries IOWarrior devices */ 2286 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST && 2287 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST) 2288 return true; 2289 break; 2290 case USB_VENDOR_ID_LOGITECH: 2291 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST && 2292 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST) 2293 return true; 2294 /* 2295 * The Keene FM transmitter USB device has the same USB ID as 2296 * the Logitech AudioHub Speaker, but it should ignore the hid. 2297 * Check if the name is that of the Keene device. 2298 * For reference: the name of the AudioHub is 2299 * "HOLTEK AudioHub Speaker". 2300 */ 2301 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB && 2302 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio ")) 2303 return true; 2304 break; 2305 case USB_VENDOR_ID_SOUNDGRAPH: 2306 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST && 2307 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST) 2308 return true; 2309 break; 2310 case USB_VENDOR_ID_HANWANG: 2311 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST && 2312 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST) 2313 return true; 2314 break; 2315 case USB_VENDOR_ID_JESS: 2316 if (hdev->product == USB_DEVICE_ID_JESS_YUREX && 2317 hdev->type == HID_TYPE_USBNONE) 2318 return true; 2319 break; 2320 case USB_VENDOR_ID_DWAV: 2321 /* These are handled by usbtouchscreen. hdev->type is probably 2322 * HID_TYPE_USBNONE, but we say !HID_TYPE_USBMOUSE to match 2323 * usbtouchscreen. */ 2324 if ((hdev->product == USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER || 2325 hdev->product == USB_DEVICE_ID_DWAV_TOUCHCONTROLLER) && 2326 hdev->type != HID_TYPE_USBMOUSE) 2327 return true; 2328 break; 2329 case USB_VENDOR_ID_VELLEMAN: 2330 /* These are not HID devices. They are handled by comedi. */ 2331 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST && 2332 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) || 2333 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST && 2334 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST)) 2335 return true; 2336 break; 2337 case USB_VENDOR_ID_ATMEL_V_USB: 2338 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and 2339 * it has the same USB ID as many Atmel V-USB devices. This 2340 * usb radio is handled by radio-ma901.c driver so we want 2341 * ignore the hid. Check the name, bus, product and ignore 2342 * if we have MA901 usb radio. 2343 */ 2344 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB && 2345 hdev->bus == BUS_USB && 2346 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0) 2347 return true; 2348 break; 2349 } 2350 2351 if (hdev->type == HID_TYPE_USBMOUSE && 2352 hid_match_id(hdev, hid_mouse_ignore_list)) 2353 return true; 2354 2355 return !!hid_match_id(hdev, hid_ignore_list); 2356 } 2357 EXPORT_SYMBOL_GPL(hid_ignore); 2358 2359 int hid_add_device(struct hid_device *hdev) 2360 { 2361 static atomic_t id = ATOMIC_INIT(0); 2362 int ret; 2363 2364 if (WARN_ON(hdev->status & HID_STAT_ADDED)) 2365 return -EBUSY; 2366 2367 /* we need to kill them here, otherwise they will stay allocated to 2368 * wait for coming driver */ 2369 if (hid_ignore(hdev)) 2370 return -ENODEV; 2371 2372 /* 2373 * Read the device report descriptor once and use as template 2374 * for the driver-specific modifications. 2375 */ 2376 ret = hdev->ll_driver->parse(hdev); 2377 if (ret) 2378 return ret; 2379 if (!hdev->dev_rdesc) 2380 return -ENODEV; 2381 2382 /* 2383 * Scan generic devices for group information 2384 */ 2385 if (hid_ignore_special_drivers || 2386 !hid_match_id(hdev, hid_have_special_driver)) { 2387 ret = hid_scan_report(hdev); 2388 if (ret) 2389 hid_warn(hdev, "bad device descriptor (%d)\n", ret); 2390 } 2391 2392 /* XXX hack, any other cleaner solution after the driver core 2393 * is converted to allow more than 20 bytes as the device name? */ 2394 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, 2395 hdev->vendor, hdev->product, atomic_inc_return(&id)); 2396 2397 hid_debug_register(hdev, dev_name(&hdev->dev)); 2398 ret = device_add(&hdev->dev); 2399 if (!ret) 2400 hdev->status |= HID_STAT_ADDED; 2401 else 2402 hid_debug_unregister(hdev); 2403 2404 return ret; 2405 } 2406 EXPORT_SYMBOL_GPL(hid_add_device); 2407 2408 /** 2409 * hid_allocate_device - allocate new hid device descriptor 2410 * 2411 * Allocate and initialize hid device, so that hid_destroy_device might be 2412 * used to free it. 2413 * 2414 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded 2415 * error value. 2416 */ 2417 struct hid_device *hid_allocate_device(void) 2418 { 2419 struct hid_device *hdev; 2420 int ret = -ENOMEM; 2421 2422 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL); 2423 if (hdev == NULL) 2424 return ERR_PTR(ret); 2425 2426 device_initialize(&hdev->dev); 2427 hdev->dev.release = hid_device_release; 2428 hdev->dev.bus = &hid_bus_type; 2429 2430 hid_close_report(hdev); 2431 2432 init_waitqueue_head(&hdev->debug_wait); 2433 INIT_LIST_HEAD(&hdev->debug_list); 2434 spin_lock_init(&hdev->debug_list_lock); 2435 sema_init(&hdev->driver_lock, 1); 2436 sema_init(&hdev->driver_input_lock, 1); 2437 2438 return hdev; 2439 } 2440 EXPORT_SYMBOL_GPL(hid_allocate_device); 2441 2442 static void hid_remove_device(struct hid_device *hdev) 2443 { 2444 if (hdev->status & HID_STAT_ADDED) { 2445 device_del(&hdev->dev); 2446 hid_debug_unregister(hdev); 2447 hdev->status &= ~HID_STAT_ADDED; 2448 } 2449 kfree(hdev->dev_rdesc); 2450 hdev->dev_rdesc = NULL; 2451 hdev->dev_rsize = 0; 2452 } 2453 2454 /** 2455 * hid_destroy_device - free previously allocated device 2456 * 2457 * @hdev: hid device 2458 * 2459 * If you allocate hid_device through hid_allocate_device, you should ever 2460 * free by this function. 2461 */ 2462 void hid_destroy_device(struct hid_device *hdev) 2463 { 2464 hid_remove_device(hdev); 2465 put_device(&hdev->dev); 2466 } 2467 EXPORT_SYMBOL_GPL(hid_destroy_device); 2468 2469 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner, 2470 const char *mod_name) 2471 { 2472 int ret; 2473 2474 hdrv->driver.name = hdrv->name; 2475 hdrv->driver.bus = &hid_bus_type; 2476 hdrv->driver.owner = owner; 2477 hdrv->driver.mod_name = mod_name; 2478 2479 INIT_LIST_HEAD(&hdrv->dyn_list); 2480 spin_lock_init(&hdrv->dyn_lock); 2481 2482 ret = driver_register(&hdrv->driver); 2483 if (ret) 2484 return ret; 2485 2486 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id); 2487 if (ret) 2488 driver_unregister(&hdrv->driver); 2489 2490 return ret; 2491 } 2492 EXPORT_SYMBOL_GPL(__hid_register_driver); 2493 2494 void hid_unregister_driver(struct hid_driver *hdrv) 2495 { 2496 driver_remove_file(&hdrv->driver, &driver_attr_new_id); 2497 driver_unregister(&hdrv->driver); 2498 hid_free_dynids(hdrv); 2499 } 2500 EXPORT_SYMBOL_GPL(hid_unregister_driver); 2501 2502 int hid_check_keys_pressed(struct hid_device *hid) 2503 { 2504 struct hid_input *hidinput; 2505 int i; 2506 2507 if (!(hid->claimed & HID_CLAIMED_INPUT)) 2508 return 0; 2509 2510 list_for_each_entry(hidinput, &hid->inputs, list) { 2511 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++) 2512 if (hidinput->input->key[i]) 2513 return 1; 2514 } 2515 2516 return 0; 2517 } 2518 2519 EXPORT_SYMBOL_GPL(hid_check_keys_pressed); 2520 2521 static int __init hid_init(void) 2522 { 2523 int ret; 2524 2525 if (hid_debug) 2526 pr_warn("hid_debug is now used solely for parser and driver debugging.\n" 2527 "debugfs is now used for inspecting the device (report descriptor, reports)\n"); 2528 2529 ret = bus_register(&hid_bus_type); 2530 if (ret) { 2531 pr_err("can't register hid bus\n"); 2532 goto err; 2533 } 2534 2535 ret = hidraw_init(); 2536 if (ret) 2537 goto err_bus; 2538 2539 hid_debug_init(); 2540 2541 return 0; 2542 err_bus: 2543 bus_unregister(&hid_bus_type); 2544 err: 2545 return ret; 2546 } 2547 2548 static void __exit hid_exit(void) 2549 { 2550 hid_debug_exit(); 2551 hidraw_exit(); 2552 bus_unregister(&hid_bus_type); 2553 } 2554 2555 module_init(hid_init); 2556 module_exit(hid_exit); 2557 2558 MODULE_AUTHOR("Andreas Gal"); 2559 MODULE_AUTHOR("Vojtech Pavlik"); 2560 MODULE_AUTHOR("Jiri Kosina"); 2561 MODULE_LICENSE(DRIVER_LICENSE); 2562 2563