Version:  2.6.34 2.6.35 2.6.36 2.6.37 2.6.38 2.6.39 3.0 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14

Linux/drivers/hid/hid-core.c

  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 
 98         if (report->maxfield == HID_MAX_FIELDS) {
 99                 hid_err(report->device, "too many fields in report\n");
100                 return NULL;
101         }
102 
103         field = kzalloc((sizeof(struct hid_field) +
104                          usages * sizeof(struct hid_usage) +
105                          values * sizeof(unsigned)), GFP_KERNEL);
106         if (!field)
107                 return NULL;
108 
109         field->index = report->maxfield++;
110         report->field[field->index] = field;
111         field->usage = (struct hid_usage *)(field + 1);
112         field->value = (s32 *)(field->usage + usages);
113         field->report = report;
114 
115         return field;
116 }
117 
118 /*
119  * Open a collection. The type/usage is pushed on the stack.
120  */
121 
122 static int open_collection(struct hid_parser *parser, unsigned type)
123 {
124         struct hid_collection *collection;
125         unsigned usage;
126 
127         usage = parser->local.usage[0];
128 
129         if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
130                 hid_err(parser->device, "collection stack overflow\n");
131                 return -EINVAL;
132         }
133 
134         if (parser->device->maxcollection == parser->device->collection_size) {
135                 collection = kmalloc(sizeof(struct hid_collection) *
136                                 parser->device->collection_size * 2, GFP_KERNEL);
137                 if (collection == NULL) {
138                         hid_err(parser->device, "failed to reallocate collection array\n");
139                         return -ENOMEM;
140                 }
141                 memcpy(collection, parser->device->collection,
142                         sizeof(struct hid_collection) *
143                         parser->device->collection_size);
144                 memset(collection + parser->device->collection_size, 0,
145                         sizeof(struct hid_collection) *
146                         parser->device->collection_size);
147                 kfree(parser->device->collection);
148                 parser->device->collection = collection;
149                 parser->device->collection_size *= 2;
150         }
151 
152         parser->collection_stack[parser->collection_stack_ptr++] =
153                 parser->device->maxcollection;
154 
155         collection = parser->device->collection +
156                 parser->device->maxcollection++;
157         collection->type = type;
158         collection->usage = usage;
159         collection->level = parser->collection_stack_ptr - 1;
160 
161         if (type == HID_COLLECTION_APPLICATION)
162                 parser->device->maxapplication++;
163 
164         return 0;
165 }
166 
167 /*
168  * Close a collection.
169  */
170 
171 static int close_collection(struct hid_parser *parser)
172 {
173         if (!parser->collection_stack_ptr) {
174                 hid_err(parser->device, "collection stack underflow\n");
175                 return -EINVAL;
176         }
177         parser->collection_stack_ptr--;
178         return 0;
179 }
180 
181 /*
182  * Climb up the stack, search for the specified collection type
183  * and return the usage.
184  */
185 
186 static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
187 {
188         struct hid_collection *collection = parser->device->collection;
189         int n;
190 
191         for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
192                 unsigned index = parser->collection_stack[n];
193                 if (collection[index].type == type)
194                         return collection[index].usage;
195         }
196         return 0; /* we know nothing about this usage type */
197 }
198 
199 /*
200  * Add a usage to the temporary parser table.
201  */
202 
203 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
204 {
205         if (parser->local.usage_index >= HID_MAX_USAGES) {
206                 hid_err(parser->device, "usage index exceeded\n");
207                 return -1;
208         }
209         parser->local.usage[parser->local.usage_index] = usage;
210         parser->local.collection_index[parser->local.usage_index] =
211                 parser->collection_stack_ptr ?
212                 parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
213         parser->local.usage_index++;
214         return 0;
215 }
216 
217 /*
218  * Register a new field for this report.
219  */
220 
221 static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
222 {
223         struct hid_report *report;
224         struct hid_field *field;
225         unsigned usages;
226         unsigned offset;
227         unsigned i;
228 
229         report = hid_register_report(parser->device, report_type, parser->global.report_id);
230         if (!report) {
231                 hid_err(parser->device, "hid_register_report failed\n");
232                 return -1;
233         }
234 
235         /* Handle both signed and unsigned cases properly */
236         if ((parser->global.logical_minimum < 0 &&
237                 parser->global.logical_maximum <
238                 parser->global.logical_minimum) ||
239                 (parser->global.logical_minimum >= 0 &&
240                 (__u32)parser->global.logical_maximum <
241                 (__u32)parser->global.logical_minimum)) {
242                 dbg_hid("logical range invalid 0x%x 0x%x\n",
243                         parser->global.logical_minimum,
244                         parser->global.logical_maximum);
245                 return -1;
246         }
247 
248         offset = report->size;
249         report->size += parser->global.report_size * parser->global.report_count;
250 
251         if (!parser->local.usage_index) /* Ignore padding fields */
252                 return 0;
253 
254         usages = max_t(unsigned, parser->local.usage_index,
255                                  parser->global.report_count);
256 
257         field = hid_register_field(report, usages, parser->global.report_count);
258         if (!field)
259                 return 0;
260 
261         field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
262         field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
263         field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
264 
265         for (i = 0; i < usages; i++) {
266                 unsigned j = i;
267                 /* Duplicate the last usage we parsed if we have excess values */
268                 if (i >= parser->local.usage_index)
269                         j = parser->local.usage_index - 1;
270                 field->usage[i].hid = parser->local.usage[j];
271                 field->usage[i].collection_index =
272                         parser->local.collection_index[j];
273                 field->usage[i].usage_index = i;
274         }
275 
276         field->maxusage = usages;
277         field->flags = flags;
278         field->report_offset = offset;
279         field->report_type = report_type;
280         field->report_size = parser->global.report_size;
281         field->report_count = parser->global.report_count;
282         field->logical_minimum = parser->global.logical_minimum;
283         field->logical_maximum = parser->global.logical_maximum;
284         field->physical_minimum = parser->global.physical_minimum;
285         field->physical_maximum = parser->global.physical_maximum;
286         field->unit_exponent = parser->global.unit_exponent;
287         field->unit = parser->global.unit;
288 
289         return 0;
290 }
291 
292 /*
293  * Read data value from item.
294  */
295 
296 static u32 item_udata(struct hid_item *item)
297 {
298         switch (item->size) {
299         case 1: return item->data.u8;
300         case 2: return item->data.u16;
301         case 4: return item->data.u32;
302         }
303         return 0;
304 }
305 
306 static s32 item_sdata(struct hid_item *item)
307 {
308         switch (item->size) {
309         case 1: return item->data.s8;
310         case 2: return item->data.s16;
311         case 4: return item->data.s32;
312         }
313         return 0;
314 }
315 
316 /*
317  * Process a global item.
318  */
319 
320 static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
321 {
322         __s32 raw_value;
323         switch (item->tag) {
324         case HID_GLOBAL_ITEM_TAG_PUSH:
325 
326                 if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
327                         hid_err(parser->device, "global environment stack overflow\n");
328                         return -1;
329                 }
330 
331                 memcpy(parser->global_stack + parser->global_stack_ptr++,
332                         &parser->global, sizeof(struct hid_global));
333                 return 0;
334 
335         case HID_GLOBAL_ITEM_TAG_POP:
336 
337                 if (!parser->global_stack_ptr) {
338                         hid_err(parser->device, "global environment stack underflow\n");
339                         return -1;
340                 }
341 
342                 memcpy(&parser->global, parser->global_stack +
343                         --parser->global_stack_ptr, sizeof(struct hid_global));
344                 return 0;
345 
346         case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
347                 parser->global.usage_page = item_udata(item);
348                 return 0;
349 
350         case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
351                 parser->global.logical_minimum = item_sdata(item);
352                 return 0;
353 
354         case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
355                 if (parser->global.logical_minimum < 0)
356                         parser->global.logical_maximum = item_sdata(item);
357                 else
358                         parser->global.logical_maximum = item_udata(item);
359                 return 0;
360 
361         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
362                 parser->global.physical_minimum = item_sdata(item);
363                 return 0;
364 
365         case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
366                 if (parser->global.physical_minimum < 0)
367                         parser->global.physical_maximum = item_sdata(item);
368                 else
369                         parser->global.physical_maximum = item_udata(item);
370                 return 0;
371 
372         case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
373                 /* Many devices provide unit exponent as a two's complement
374                  * nibble due to the common misunderstanding of HID
375                  * specification 1.11, 6.2.2.7 Global Items. Attempt to handle
376                  * both this and the standard encoding. */
377                 raw_value = item_sdata(item);
378                 if (!(raw_value & 0xfffffff0))
379                         parser->global.unit_exponent = hid_snto32(raw_value, 4);
380                 else
381                         parser->global.unit_exponent = raw_value;
382                 return 0;
383 
384         case HID_GLOBAL_ITEM_TAG_UNIT:
385                 parser->global.unit = item_udata(item);
386                 return 0;
387 
388         case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
389                 parser->global.report_size = item_udata(item);
390                 if (parser->global.report_size > 128) {
391                         hid_err(parser->device, "invalid report_size %d\n",
392                                         parser->global.report_size);
393                         return -1;
394                 }
395                 return 0;
396 
397         case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
398                 parser->global.report_count = item_udata(item);
399                 if (parser->global.report_count > HID_MAX_USAGES) {
400                         hid_err(parser->device, "invalid report_count %d\n",
401                                         parser->global.report_count);
402                         return -1;
403                 }
404                 return 0;
405 
406         case HID_GLOBAL_ITEM_TAG_REPORT_ID:
407                 parser->global.report_id = item_udata(item);
408                 if (parser->global.report_id == 0 ||
409                     parser->global.report_id >= HID_MAX_IDS) {
410                         hid_err(parser->device, "report_id %u is invalid\n",
411                                 parser->global.report_id);
412                         return -1;
413                 }
414                 return 0;
415 
416         default:
417                 hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
418                 return -1;
419         }
420 }
421 
422 /*
423  * Process a local item.
424  */
425 
426 static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
427 {
428         __u32 data;
429         unsigned n;
430 
431         data = item_udata(item);
432 
433         switch (item->tag) {
434         case HID_LOCAL_ITEM_TAG_DELIMITER:
435 
436                 if (data) {
437                         /*
438                          * We treat items before the first delimiter
439                          * as global to all usage sets (branch 0).
440                          * In the moment we process only these global
441                          * items and the first delimiter set.
442                          */
443                         if (parser->local.delimiter_depth != 0) {
444                                 hid_err(parser->device, "nested delimiters\n");
445                                 return -1;
446                         }
447                         parser->local.delimiter_depth++;
448                         parser->local.delimiter_branch++;
449                 } else {
450                         if (parser->local.delimiter_depth < 1) {
451                                 hid_err(parser->device, "bogus close delimiter\n");
452                                 return -1;
453                         }
454                         parser->local.delimiter_depth--;
455                 }
456                 return 0;
457 
458         case HID_LOCAL_ITEM_TAG_USAGE:
459 
460                 if (parser->local.delimiter_branch > 1) {
461                         dbg_hid("alternative usage ignored\n");
462                         return 0;
463                 }
464 
465                 if (item->size <= 2)
466                         data = (parser->global.usage_page << 16) + data;
467 
468                 return hid_add_usage(parser, data);
469 
470         case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
471 
472                 if (parser->local.delimiter_branch > 1) {
473                         dbg_hid("alternative usage ignored\n");
474                         return 0;
475                 }
476 
477                 if (item->size <= 2)
478                         data = (parser->global.usage_page << 16) + data;
479 
480                 parser->local.usage_minimum = data;
481                 return 0;
482 
483         case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
484 
485                 if (parser->local.delimiter_branch > 1) {
486                         dbg_hid("alternative usage ignored\n");
487                         return 0;
488                 }
489 
490                 if (item->size <= 2)
491                         data = (parser->global.usage_page << 16) + data;
492 
493                 for (n = parser->local.usage_minimum; n <= data; n++)
494                         if (hid_add_usage(parser, n)) {
495                                 dbg_hid("hid_add_usage failed\n");
496                                 return -1;
497                         }
498                 return 0;
499 
500         default:
501 
502                 dbg_hid("unknown local item tag 0x%x\n", item->tag);
503                 return 0;
504         }
505         return 0;
506 }
507 
508 /*
509  * Process a main item.
510  */
511 
512 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
513 {
514         __u32 data;
515         int ret;
516 
517         data = item_udata(item);
518 
519         switch (item->tag) {
520         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
521                 ret = open_collection(parser, data & 0xff);
522                 break;
523         case HID_MAIN_ITEM_TAG_END_COLLECTION:
524                 ret = close_collection(parser);
525                 break;
526         case HID_MAIN_ITEM_TAG_INPUT:
527                 ret = hid_add_field(parser, HID_INPUT_REPORT, data);
528                 break;
529         case HID_MAIN_ITEM_TAG_OUTPUT:
530                 ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
531                 break;
532         case HID_MAIN_ITEM_TAG_FEATURE:
533                 ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
534                 break;
535         default:
536                 hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
537                 ret = 0;
538         }
539 
540         memset(&parser->local, 0, sizeof(parser->local));       /* Reset the local parser environment */
541 
542         return ret;
543 }
544 
545 /*
546  * Process a reserved item.
547  */
548 
549 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
550 {
551         dbg_hid("reserved item type, tag 0x%x\n", item->tag);
552         return 0;
553 }
554 
555 /*
556  * Free a report and all registered fields. The field->usage and
557  * field->value table's are allocated behind the field, so we need
558  * only to free(field) itself.
559  */
560 
561 static void hid_free_report(struct hid_report *report)
562 {
563         unsigned n;
564 
565         for (n = 0; n < report->maxfield; n++)
566                 kfree(report->field[n]);
567         kfree(report);
568 }
569 
570 /*
571  * Close report. This function returns the device
572  * state to the point prior to hid_open_report().
573  */
574 static void hid_close_report(struct hid_device *device)
575 {
576         unsigned i, j;
577 
578         for (i = 0; i < HID_REPORT_TYPES; i++) {
579                 struct hid_report_enum *report_enum = device->report_enum + i;
580 
581                 for (j = 0; j < HID_MAX_IDS; j++) {
582                         struct hid_report *report = report_enum->report_id_hash[j];
583                         if (report)
584                                 hid_free_report(report);
585                 }
586                 memset(report_enum, 0, sizeof(*report_enum));
587                 INIT_LIST_HEAD(&report_enum->report_list);
588         }
589 
590         kfree(device->rdesc);
591         device->rdesc = NULL;
592         device->rsize = 0;
593 
594         kfree(device->collection);
595         device->collection = NULL;
596         device->collection_size = 0;
597         device->maxcollection = 0;
598         device->maxapplication = 0;
599 
600         device->status &= ~HID_STAT_PARSED;
601 }
602 
603 /*
604  * Free a device structure, all reports, and all fields.
605  */
606 
607 static void hid_device_release(struct device *dev)
608 {
609         struct hid_device *hid = container_of(dev, struct hid_device, dev);
610 
611         hid_close_report(hid);
612         kfree(hid->dev_rdesc);
613         kfree(hid);
614 }
615 
616 /*
617  * Fetch a report description item from the data stream. We support long
618  * items, though they are not used yet.
619  */
620 
621 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
622 {
623         u8 b;
624 
625         if ((end - start) <= 0)
626                 return NULL;
627 
628         b = *start++;
629 
630         item->type = (b >> 2) & 3;
631         item->tag  = (b >> 4) & 15;
632 
633         if (item->tag == HID_ITEM_TAG_LONG) {
634 
635                 item->format = HID_ITEM_FORMAT_LONG;
636 
637                 if ((end - start) < 2)
638                         return NULL;
639 
640                 item->size = *start++;
641                 item->tag  = *start++;
642 
643                 if ((end - start) < item->size)
644                         return NULL;
645 
646                 item->data.longdata = start;
647                 start += item->size;
648                 return start;
649         }
650 
651         item->format = HID_ITEM_FORMAT_SHORT;
652         item->size = b & 3;
653 
654         switch (item->size) {
655         case 0:
656                 return start;
657 
658         case 1:
659                 if ((end - start) < 1)
660                         return NULL;
661                 item->data.u8 = *start++;
662                 return start;
663 
664         case 2:
665                 if ((end - start) < 2)
666                         return NULL;
667                 item->data.u16 = get_unaligned_le16(start);
668                 start = (__u8 *)((__le16 *)start + 1);
669                 return start;
670 
671         case 3:
672                 item->size++;
673                 if ((end - start) < 4)
674                         return NULL;
675                 item->data.u32 = get_unaligned_le32(start);
676                 start = (__u8 *)((__le32 *)start + 1);
677                 return start;
678         }
679 
680         return NULL;
681 }
682 
683 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
684 {
685         struct hid_device *hid = parser->device;
686 
687         if (usage == HID_DG_CONTACTID)
688                 hid->group = HID_GROUP_MULTITOUCH;
689 }
690 
691 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
692 {
693         if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
694             parser->global.report_size == 8)
695                 parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
696 }
697 
698 static void hid_scan_collection(struct hid_parser *parser, unsigned type)
699 {
700         struct hid_device *hid = parser->device;
701 
702         if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
703             type == HID_COLLECTION_PHYSICAL)
704                 hid->group = HID_GROUP_SENSOR_HUB;
705 }
706 
707 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
708 {
709         __u32 data;
710         int i;
711 
712         data = item_udata(item);
713 
714         switch (item->tag) {
715         case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
716                 hid_scan_collection(parser, data & 0xff);
717                 break;
718         case HID_MAIN_ITEM_TAG_END_COLLECTION:
719                 break;
720         case HID_MAIN_ITEM_TAG_INPUT:
721                 for (i = 0; i < parser->local.usage_index; i++)
722                         hid_scan_input_usage(parser, parser->local.usage[i]);
723                 break;
724         case HID_MAIN_ITEM_TAG_OUTPUT:
725                 break;
726         case HID_MAIN_ITEM_TAG_FEATURE:
727                 for (i = 0; i < parser->local.usage_index; i++)
728                         hid_scan_feature_usage(parser, parser->local.usage[i]);
729                 break;
730         }
731 
732         /* Reset the local parser environment */
733         memset(&parser->local, 0, sizeof(parser->local));
734 
735         return 0;
736 }
737 
738 /*
739  * Scan a report descriptor before the device is added to the bus.
740  * Sets device groups and other properties that determine what driver
741  * to load.
742  */
743 static int hid_scan_report(struct hid_device *hid)
744 {
745         struct hid_parser *parser;
746         struct hid_item item;
747         __u8 *start = hid->dev_rdesc;
748         __u8 *end = start + hid->dev_rsize;
749         static int (*dispatch_type[])(struct hid_parser *parser,
750                                       struct hid_item *item) = {
751                 hid_scan_main,
752                 hid_parser_global,
753                 hid_parser_local,
754                 hid_parser_reserved
755         };
756 
757         parser = vzalloc(sizeof(struct hid_parser));
758         if (!parser)
759                 return -ENOMEM;
760 
761         parser->device = hid;
762         hid->group = HID_GROUP_GENERIC;
763 
764         /*
765          * The parsing is simpler than the one in hid_open_report() as we should
766          * be robust against hid errors. Those errors will be raised by
767          * hid_open_report() anyway.
768          */
769         while ((start = fetch_item(start, end, &item)) != NULL)
770                 dispatch_type[item.type](parser, &item);
771 
772         /*
773          * Handle special flags set during scanning.
774          */
775         if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
776             (hid->group == HID_GROUP_MULTITOUCH))
777                 hid->group = HID_GROUP_MULTITOUCH_WIN_8;
778 
779         vfree(parser);
780         return 0;
781 }
782 
783 /**
784  * hid_parse_report - parse device report
785  *
786  * @device: hid device
787  * @start: report start
788  * @size: report size
789  *
790  * Allocate the device report as read by the bus driver. This function should
791  * only be called from parse() in ll drivers.
792  */
793 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
794 {
795         hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
796         if (!hid->dev_rdesc)
797                 return -ENOMEM;
798         hid->dev_rsize = size;
799         return 0;
800 }
801 EXPORT_SYMBOL_GPL(hid_parse_report);
802 
803 static const char * const hid_report_names[] = {
804         "HID_INPUT_REPORT",
805         "HID_OUTPUT_REPORT",
806         "HID_FEATURE_REPORT",
807 };
808 /**
809  * hid_validate_values - validate existing device report's value indexes
810  *
811  * @device: hid device
812  * @type: which report type to examine
813  * @id: which report ID to examine (0 for first)
814  * @field_index: which report field to examine
815  * @report_counts: expected number of values
816  *
817  * Validate the number of values in a given field of a given report, after
818  * parsing.
819  */
820 struct hid_report *hid_validate_values(struct hid_device *hid,
821                                        unsigned int type, unsigned int id,
822                                        unsigned int field_index,
823                                        unsigned int report_counts)
824 {
825         struct hid_report *report;
826 
827         if (type > HID_FEATURE_REPORT) {
828                 hid_err(hid, "invalid HID report type %u\n", type);
829                 return NULL;
830         }
831 
832         if (id >= HID_MAX_IDS) {
833                 hid_err(hid, "invalid HID report id %u\n", id);
834                 return NULL;
835         }
836 
837         /*
838          * Explicitly not using hid_get_report() here since it depends on
839          * ->numbered being checked, which may not always be the case when
840          * drivers go to access report values.
841          */
842         report = hid->report_enum[type].report_id_hash[id];
843         if (!report) {
844                 hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
845                 return NULL;
846         }
847         if (report->maxfield <= field_index) {
848                 hid_err(hid, "not enough fields in %s %u\n",
849                         hid_report_names[type], id);
850                 return NULL;
851         }
852         if (report->field[field_index]->report_count < report_counts) {
853                 hid_err(hid, "not enough values in %s %u field %u\n",
854                         hid_report_names[type], id, field_index);
855                 return NULL;
856         }
857         return report;
858 }
859 EXPORT_SYMBOL_GPL(hid_validate_values);
860 
861 /**
862  * hid_open_report - open a driver-specific device report
863  *
864  * @device: hid device
865  *
866  * Parse a report description into a hid_device structure. Reports are
867  * enumerated, fields are attached to these reports.
868  * 0 returned on success, otherwise nonzero error value.
869  *
870  * This function (or the equivalent hid_parse() macro) should only be
871  * called from probe() in drivers, before starting the device.
872  */
873 int hid_open_report(struct hid_device *device)
874 {
875         struct hid_parser *parser;
876         struct hid_item item;
877         unsigned int size;
878         __u8 *start;
879         __u8 *buf;
880         __u8 *end;
881         int ret;
882         static int (*dispatch_type[])(struct hid_parser *parser,
883                                       struct hid_item *item) = {
884                 hid_parser_main,
885                 hid_parser_global,
886                 hid_parser_local,
887                 hid_parser_reserved
888         };
889 
890         if (WARN_ON(device->status & HID_STAT_PARSED))
891                 return -EBUSY;
892 
893         start = device->dev_rdesc;
894         if (WARN_ON(!start))
895                 return -ENODEV;
896         size = device->dev_rsize;
897 
898         buf = kmemdup(start, size, GFP_KERNEL);
899         if (buf == NULL)
900                 return -ENOMEM;
901 
902         if (device->driver->report_fixup)
903                 start = device->driver->report_fixup(device, buf, &size);
904         else
905                 start = buf;
906 
907         start = kmemdup(start, size, GFP_KERNEL);
908         kfree(buf);
909         if (start == NULL)
910                 return -ENOMEM;
911 
912         device->rdesc = start;
913         device->rsize = size;
914 
915         parser = vzalloc(sizeof(struct hid_parser));
916         if (!parser) {
917                 ret = -ENOMEM;
918                 goto err;
919         }
920 
921         parser->device = device;
922 
923         end = start + size;
924 
925         device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
926                                      sizeof(struct hid_collection), GFP_KERNEL);
927         if (!device->collection) {
928                 ret = -ENOMEM;
929                 goto err;
930         }
931         device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
932 
933         ret = -EINVAL;
934         while ((start = fetch_item(start, end, &item)) != NULL) {
935 
936                 if (item.format != HID_ITEM_FORMAT_SHORT) {
937                         hid_err(device, "unexpected long global item\n");
938                         goto err;
939                 }
940 
941                 if (dispatch_type[item.type](parser, &item)) {
942                         hid_err(device, "item %u %u %u %u parsing failed\n",
943                                 item.format, (unsigned)item.size,
944                                 (unsigned)item.type, (unsigned)item.tag);
945                         goto err;
946                 }
947 
948                 if (start == end) {
949                         if (parser->collection_stack_ptr) {
950                                 hid_err(device, "unbalanced collection at end of report description\n");
951                                 goto err;
952                         }
953                         if (parser->local.delimiter_depth) {
954                                 hid_err(device, "unbalanced delimiter at end of report description\n");
955                                 goto err;
956                         }
957                         vfree(parser);
958                         device->status |= HID_STAT_PARSED;
959                         return 0;
960                 }
961         }
962 
963         hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
964 err:
965         vfree(parser);
966         hid_close_report(device);
967         return ret;
968 }
969 EXPORT_SYMBOL_GPL(hid_open_report);
970 
971 /*
972  * Convert a signed n-bit integer to signed 32-bit integer. Common
973  * cases are done through the compiler, the screwed things has to be
974  * done by hand.
975  */
976 
977 static s32 snto32(__u32 value, unsigned n)
978 {
979         switch (n) {
980         case 8:  return ((__s8)value);
981         case 16: return ((__s16)value);
982         case 32: return ((__s32)value);
983         }
984         return value & (1 << (n - 1)) ? value | (-1 << n) : value;
985 }
986 
987 s32 hid_snto32(__u32 value, unsigned n)
988 {
989         return snto32(value, n);
990 }
991 EXPORT_SYMBOL_GPL(hid_snto32);
992 
993 /*
994  * Convert a signed 32-bit integer to a signed n-bit integer.
995  */
996 
997 static u32 s32ton(__s32 value, unsigned n)
998 {
999         s32 a = value >> (n - 1);
1000         if (a && a != -1)
1001                 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1002         return value & ((1 << n) - 1);
1003 }
1004 
1005 /*
1006  * Extract/implement a data field from/to a little endian report (bit array).
1007  *
1008  * Code sort-of follows HID spec:
1009  *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
1010  *
1011  * While the USB HID spec allows unlimited length bit fields in "report
1012  * descriptors", most devices never use more than 16 bits.
1013  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1014  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1015  */
1016 
1017 static __u32 extract(const struct hid_device *hid, __u8 *report,
1018                      unsigned offset, unsigned n)
1019 {
1020         u64 x;
1021 
1022         if (n > 32)
1023                 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
1024                          n, current->comm);
1025 
1026         report += offset >> 3;  /* adjust byte index */
1027         offset &= 7;            /* now only need bit offset into one byte */
1028         x = get_unaligned_le64(report);
1029         x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
1030         return (u32) x;
1031 }
1032 
1033 /*
1034  * "implement" : set bits in a little endian bit stream.
1035  * Same concepts as "extract" (see comments above).
1036  * The data mangled in the bit stream remains in little endian
1037  * order the whole time. It make more sense to talk about
1038  * endianness of register values by considering a register
1039  * a "cached" copy of the little endiad bit stream.
1040  */
1041 static void implement(const struct hid_device *hid, __u8 *report,
1042                       unsigned offset, unsigned n, __u32 value)
1043 {
1044         u64 x;
1045         u64 m = (1ULL << n) - 1;
1046 
1047         if (n > 32)
1048                 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1049                          __func__, n, current->comm);
1050 
1051         if (value > m)
1052                 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
1053                          __func__, value, current->comm);
1054         WARN_ON(value > m);
1055         value &= m;
1056 
1057         report += offset >> 3;
1058         offset &= 7;
1059 
1060         x = get_unaligned_le64(report);
1061         x &= ~(m << offset);
1062         x |= ((u64)value) << offset;
1063         put_unaligned_le64(x, report);
1064 }
1065 
1066 /*
1067  * Search an array for a value.
1068  */
1069 
1070 static int search(__s32 *array, __s32 value, unsigned n)
1071 {
1072         while (n--) {
1073                 if (*array++ == value)
1074                         return 0;
1075         }
1076         return -1;
1077 }
1078 
1079 /**
1080  * hid_match_report - check if driver's raw_event should be called
1081  *
1082  * @hid: hid device
1083  * @report_type: type to match against
1084  *
1085  * compare hid->driver->report_table->report_type to report->type
1086  */
1087 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1088 {
1089         const struct hid_report_id *id = hid->driver->report_table;
1090 
1091         if (!id) /* NULL means all */
1092                 return 1;
1093 
1094         for (; id->report_type != HID_TERMINATOR; id++)
1095                 if (id->report_type == HID_ANY_ID ||
1096                                 id->report_type == report->type)
1097                         return 1;
1098         return 0;
1099 }
1100 
1101 /**
1102  * hid_match_usage - check if driver's event should be called
1103  *
1104  * @hid: hid device
1105  * @usage: usage to match against
1106  *
1107  * compare hid->driver->usage_table->usage_{type,code} to
1108  * usage->usage_{type,code}
1109  */
1110 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1111 {
1112         const struct hid_usage_id *id = hid->driver->usage_table;
1113 
1114         if (!id) /* NULL means all */
1115                 return 1;
1116 
1117         for (; id->usage_type != HID_ANY_ID - 1; id++)
1118                 if ((id->usage_hid == HID_ANY_ID ||
1119                                 id->usage_hid == usage->hid) &&
1120                                 (id->usage_type == HID_ANY_ID ||
1121                                 id->usage_type == usage->type) &&
1122                                 (id->usage_code == HID_ANY_ID ||
1123                                  id->usage_code == usage->code))
1124                         return 1;
1125         return 0;
1126 }
1127 
1128 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1129                 struct hid_usage *usage, __s32 value, int interrupt)
1130 {
1131         struct hid_driver *hdrv = hid->driver;
1132         int ret;
1133 
1134         if (!list_empty(&hid->debug_list))
1135                 hid_dump_input(hid, usage, value);
1136 
1137         if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1138                 ret = hdrv->event(hid, field, usage, value);
1139                 if (ret != 0) {
1140                         if (ret < 0)
1141                                 hid_err(hid, "%s's event failed with %d\n",
1142                                                 hdrv->name, ret);
1143                         return;
1144                 }
1145         }
1146 
1147         if (hid->claimed & HID_CLAIMED_INPUT)
1148                 hidinput_hid_event(hid, field, usage, value);
1149         if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1150                 hid->hiddev_hid_event(hid, field, usage, value);
1151 }
1152 
1153 /*
1154  * Analyse a received field, and fetch the data from it. The field
1155  * content is stored for next report processing (we do differential
1156  * reporting to the layer).
1157  */
1158 
1159 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1160                             __u8 *data, int interrupt)
1161 {
1162         unsigned n;
1163         unsigned count = field->report_count;
1164         unsigned offset = field->report_offset;
1165         unsigned size = field->report_size;
1166         __s32 min = field->logical_minimum;
1167         __s32 max = field->logical_maximum;
1168         __s32 *value;
1169 
1170         value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1171         if (!value)
1172                 return;
1173 
1174         for (n = 0; n < count; n++) {
1175 
1176                 value[n] = min < 0 ?
1177                         snto32(extract(hid, data, offset + n * size, size),
1178                                size) :
1179                         extract(hid, data, offset + n * size, size);
1180 
1181                 /* Ignore report if ErrorRollOver */
1182                 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1183                     value[n] >= min && value[n] <= max &&
1184                     field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1185                         goto exit;
1186         }
1187 
1188         for (n = 0; n < count; n++) {
1189 
1190                 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1191                         hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1192                         continue;
1193                 }
1194 
1195                 if (field->value[n] >= min && field->value[n] <= max
1196                         && field->usage[field->value[n] - min].hid
1197                         && search(value, field->value[n], count))
1198                                 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1199 
1200                 if (value[n] >= min && value[n] <= max
1201                         && field->usage[value[n] - min].hid
1202                         && search(field->value, value[n], count))
1203                                 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1204         }
1205 
1206         memcpy(field->value, value, count * sizeof(__s32));
1207 exit:
1208         kfree(value);
1209 }
1210 
1211 /*
1212  * Output the field into the report.
1213  */
1214 
1215 static void hid_output_field(const struct hid_device *hid,
1216                              struct hid_field *field, __u8 *data)
1217 {
1218         unsigned count = field->report_count;
1219         unsigned offset = field->report_offset;
1220         unsigned size = field->report_size;
1221         unsigned n;
1222 
1223         for (n = 0; n < count; n++) {
1224                 if (field->logical_minimum < 0) /* signed values */
1225                         implement(hid, data, offset + n * size, size,
1226                                   s32ton(field->value[n], size));
1227                 else                            /* unsigned values */
1228                         implement(hid, data, offset + n * size, size,
1229                                   field->value[n]);
1230         }
1231 }
1232 
1233 /*
1234  * Create a report. 'data' has to be allocated using
1235  * hid_alloc_report_buf() so that it has proper size.
1236  */
1237 
1238 void hid_output_report(struct hid_report *report, __u8 *data)
1239 {
1240         unsigned n;
1241 
1242         if (report->id > 0)
1243                 *data++ = report->id;
1244 
1245         memset(data, 0, ((report->size - 1) >> 3) + 1);
1246         for (n = 0; n < report->maxfield; n++)
1247                 hid_output_field(report->device, report->field[n], data);
1248 }
1249 EXPORT_SYMBOL_GPL(hid_output_report);
1250 
1251 /*
1252  * Allocator for buffer that is going to be passed to hid_output_report()
1253  */
1254 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1255 {
1256         /*
1257          * 7 extra bytes are necessary to achieve proper functionality
1258          * of implement() working on 8 byte chunks
1259          */
1260 
1261         int len = ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
1262 
1263         return kmalloc(len, flags);
1264 }
1265 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1266 
1267 /*
1268  * Set a field value. The report this field belongs to has to be
1269  * created and transferred to the device, to set this value in the
1270  * device.
1271  */
1272 
1273 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1274 {
1275         unsigned size;
1276 
1277         if (!field)
1278                 return -1;
1279 
1280         size = field->report_size;
1281 
1282         hid_dump_input(field->report->device, field->usage + offset, value);
1283 
1284         if (offset >= field->report_count) {
1285                 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1286                                 offset, field->report_count);
1287                 return -1;
1288         }
1289         if (field->logical_minimum < 0) {
1290                 if (value != snto32(s32ton(value, size), size)) {
1291                         hid_err(field->report->device, "value %d is out of range\n", value);
1292                         return -1;
1293                 }
1294         }
1295         field->value[offset] = value;
1296         return 0;
1297 }
1298 EXPORT_SYMBOL_GPL(hid_set_field);
1299 
1300 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1301                 const u8 *data)
1302 {
1303         struct hid_report *report;
1304         unsigned int n = 0;     /* Normally report number is 0 */
1305 
1306         /* Device uses numbered reports, data[0] is report number */
1307         if (report_enum->numbered)
1308                 n = *data;
1309 
1310         report = report_enum->report_id_hash[n];
1311         if (report == NULL)
1312                 dbg_hid("undefined report_id %u received\n", n);
1313 
1314         return report;
1315 }
1316 
1317 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1318                 int interrupt)
1319 {
1320         struct hid_report_enum *report_enum = hid->report_enum + type;
1321         struct hid_report *report;
1322         struct hid_driver *hdrv;
1323         unsigned int a;
1324         int rsize, csize = size;
1325         u8 *cdata = data;
1326         int ret = 0;
1327 
1328         report = hid_get_report(report_enum, data);
1329         if (!report)
1330                 goto out;
1331 
1332         if (report_enum->numbered) {
1333                 cdata++;
1334                 csize--;
1335         }
1336 
1337         rsize = ((report->size - 1) >> 3) + 1;
1338 
1339         if (rsize > HID_MAX_BUFFER_SIZE)
1340                 rsize = HID_MAX_BUFFER_SIZE;
1341 
1342         if (csize < rsize) {
1343                 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1344                                 csize, rsize);
1345                 memset(cdata + csize, 0, rsize - csize);
1346         }
1347 
1348         if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1349                 hid->hiddev_report_event(hid, report);
1350         if (hid->claimed & HID_CLAIMED_HIDRAW) {
1351                 ret = hidraw_report_event(hid, data, size);
1352                 if (ret)
1353                         goto out;
1354         }
1355 
1356         if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1357                 for (a = 0; a < report->maxfield; a++)
1358                         hid_input_field(hid, report->field[a], cdata, interrupt);
1359                 hdrv = hid->driver;
1360                 if (hdrv && hdrv->report)
1361                         hdrv->report(hid, report);
1362         }
1363 
1364         if (hid->claimed & HID_CLAIMED_INPUT)
1365                 hidinput_report_event(hid, report);
1366 out:
1367         return ret;
1368 }
1369 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1370 
1371 /**
1372  * hid_input_report - report data from lower layer (usb, bt...)
1373  *
1374  * @hid: hid device
1375  * @type: HID report type (HID_*_REPORT)
1376  * @data: report contents
1377  * @size: size of data parameter
1378  * @interrupt: distinguish between interrupt and control transfers
1379  *
1380  * This is data entry for lower layers.
1381  */
1382 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1383 {
1384         struct hid_report_enum *report_enum;
1385         struct hid_driver *hdrv;
1386         struct hid_report *report;
1387         int ret = 0;
1388 
1389         if (!hid)
1390                 return -ENODEV;
1391 
1392         if (down_trylock(&hid->driver_input_lock))
1393                 return -EBUSY;
1394 
1395         if (!hid->driver) {
1396                 ret = -ENODEV;
1397                 goto unlock;
1398         }
1399         report_enum = hid->report_enum + type;
1400         hdrv = hid->driver;
1401 
1402         if (!size) {
1403                 dbg_hid("empty report\n");
1404                 ret = -1;
1405                 goto unlock;
1406         }
1407 
1408         /* Avoid unnecessary overhead if debugfs is disabled */
1409         if (!list_empty(&hid->debug_list))
1410                 hid_dump_report(hid, type, data, size);
1411 
1412         report = hid_get_report(report_enum, data);
1413 
1414         if (!report) {
1415                 ret = -1;
1416                 goto unlock;
1417         }
1418 
1419         if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1420                 ret = hdrv->raw_event(hid, report, data, size);
1421                 if (ret < 0)
1422                         goto unlock;
1423         }
1424 
1425         ret = hid_report_raw_event(hid, type, data, size, interrupt);
1426 
1427 unlock:
1428         up(&hid->driver_input_lock);
1429         return ret;
1430 }
1431 EXPORT_SYMBOL_GPL(hid_input_report);
1432 
1433 static bool hid_match_one_id(struct hid_device *hdev,
1434                 const struct hid_device_id *id)
1435 {
1436         return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1437                 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1438                 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1439                 (id->product == HID_ANY_ID || id->product == hdev->product);
1440 }
1441 
1442 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1443                 const struct hid_device_id *id)
1444 {
1445         for (; id->bus; id++)
1446                 if (hid_match_one_id(hdev, id))
1447                         return id;
1448 
1449         return NULL;
1450 }
1451 
1452 static const struct hid_device_id hid_hiddev_list[] = {
1453         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1454         { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1455         { }
1456 };
1457 
1458 static bool hid_hiddev(struct hid_device *hdev)
1459 {
1460         return !!hid_match_id(hdev, hid_hiddev_list);
1461 }
1462 
1463 
1464 static ssize_t
1465 read_report_descriptor(struct file *filp, struct kobject *kobj,
1466                 struct bin_attribute *attr,
1467                 char *buf, loff_t off, size_t count)
1468 {
1469         struct device *dev = container_of(kobj, struct device, kobj);
1470         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1471 
1472         if (off >= hdev->rsize)
1473                 return 0;
1474 
1475         if (off + count > hdev->rsize)
1476                 count = hdev->rsize - off;
1477 
1478         memcpy(buf, hdev->rdesc + off, count);
1479 
1480         return count;
1481 }
1482 
1483 static struct bin_attribute dev_bin_attr_report_desc = {
1484         .attr = { .name = "report_descriptor", .mode = 0444 },
1485         .read = read_report_descriptor,
1486         .size = HID_MAX_DESCRIPTOR_SIZE,
1487 };
1488 
1489 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1490 {
1491         static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1492                 "Joystick", "Gamepad", "Keyboard", "Keypad",
1493                 "Multi-Axis Controller"
1494         };
1495         const char *type, *bus;
1496         char buf[64];
1497         unsigned int i;
1498         int len;
1499         int ret;
1500 
1501         if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1502                 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1503         if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1504                 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1505         if (hdev->bus != BUS_USB)
1506                 connect_mask &= ~HID_CONNECT_HIDDEV;
1507         if (hid_hiddev(hdev))
1508                 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1509 
1510         if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1511                                 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1512                 hdev->claimed |= HID_CLAIMED_INPUT;
1513 
1514         if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1515                         !hdev->hiddev_connect(hdev,
1516                                 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1517                 hdev->claimed |= HID_CLAIMED_HIDDEV;
1518         if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1519                 hdev->claimed |= HID_CLAIMED_HIDRAW;
1520 
1521         /* Drivers with the ->raw_event callback set are not required to connect
1522          * to any other listener. */
1523         if (!hdev->claimed && !hdev->driver->raw_event) {
1524                 hid_err(hdev, "device has no listeners, quitting\n");
1525                 return -ENODEV;
1526         }
1527 
1528         if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1529                         (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1530                 hdev->ff_init(hdev);
1531 
1532         len = 0;
1533         if (hdev->claimed & HID_CLAIMED_INPUT)
1534                 len += sprintf(buf + len, "input");
1535         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1536                 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1537                                 hdev->minor);
1538         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1539                 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1540                                 ((struct hidraw *)hdev->hidraw)->minor);
1541 
1542         type = "Device";
1543         for (i = 0; i < hdev->maxcollection; i++) {
1544                 struct hid_collection *col = &hdev->collection[i];
1545                 if (col->type == HID_COLLECTION_APPLICATION &&
1546                    (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1547                    (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1548                         type = types[col->usage & 0xffff];
1549                         break;
1550                 }
1551         }
1552 
1553         switch (hdev->bus) {
1554         case BUS_USB:
1555                 bus = "USB";
1556                 break;
1557         case BUS_BLUETOOTH:
1558                 bus = "BLUETOOTH";
1559                 break;
1560         default:
1561                 bus = "<UNKNOWN>";
1562         }
1563 
1564         ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1565         if (ret)
1566                 hid_warn(hdev,
1567                          "can't create sysfs report descriptor attribute err: %d\n", ret);
1568 
1569         hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1570                  buf, bus, hdev->version >> 8, hdev->version & 0xff,
1571                  type, hdev->name, hdev->phys);
1572 
1573         return 0;
1574 }
1575 EXPORT_SYMBOL_GPL(hid_connect);
1576 
1577 void hid_disconnect(struct hid_device *hdev)
1578 {
1579         device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1580         if (hdev->claimed & HID_CLAIMED_INPUT)
1581                 hidinput_disconnect(hdev);
1582         if (hdev->claimed & HID_CLAIMED_HIDDEV)
1583                 hdev->hiddev_disconnect(hdev);
1584         if (hdev->claimed & HID_CLAIMED_HIDRAW)
1585                 hidraw_disconnect(hdev);
1586 }
1587 EXPORT_SYMBOL_GPL(hid_disconnect);
1588 
1589 /*
1590  * A list of devices for which there is a specialized driver on HID bus.
1591  *
1592  * Please note that for multitouch devices (driven by hid-multitouch driver),
1593  * there is a proper autodetection and autoloading in place (based on presence
1594  * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1595  * as we are doing the right thing in hid_scan_usage().
1596  *
1597  * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1598  * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1599  * used as a driver. See hid_scan_report().
1600  */
1601 static const struct hid_device_id hid_have_special_driver[] = {
1602         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1603         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1604         { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1605         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1606         { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1607         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1608         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1609         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1610         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1611         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1612         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1613         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1614         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1615         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1616         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1617         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1618         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1619         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1620         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1621         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1622         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1623         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1624         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1625         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1626         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1627         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1628         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1629         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1630         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1631         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1632         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1633         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1634         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1635         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1636         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1637         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1638         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1639         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1640         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1641         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1642         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1643         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1644         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1645         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1646         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1647         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1648         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1649         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1650         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1651         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1652         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1653         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1654         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1655         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1656         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1657         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1658         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1659         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1660         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1661         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1662         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1663         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1664         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1665         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1666         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1667         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1668         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1669         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1670         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1671         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1672         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1673         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1674         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1675         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1676         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1677         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1678         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1679         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1680         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1681         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1682         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
1683         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1684         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1685         { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1686         { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1687         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1688         { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1689         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1690         { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1691         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1692         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1693         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1694         { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1695         { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1696         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1697         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1698         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1699         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1700         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1701         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1702         { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1703         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1704         { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1705         { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1706         { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1707         { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1708         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1709         { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1710         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1711         { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1712         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1713         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1714         { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1715         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1716         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1717         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1718         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1719         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
1720         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1721         { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1722         { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1723         { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1724         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1725         { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1726         { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1727         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1728         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1729         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1730         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1731         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1732         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1733         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1734         { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1735         { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1736 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1737         { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1738 #endif
1739         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1740         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1741         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1742         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1743         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1744         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1745         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1746         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1747         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1748         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1749         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1750         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1751         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1752         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1753         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1754         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1755         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1756         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1757         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1758         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1759         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1760         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1761         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1762         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1763         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1764         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1765 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1766         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1767         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1768 #endif
1769         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1770         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1771         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1772         { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1773         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1774         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1775         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1776         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1777         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1778         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1779         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1780         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1781         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1782         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1783         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_2) },
1784         { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TOUCH_COVER_2) },
1785         { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1786         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1787         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1788         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1789         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1790         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1791         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1792         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1793         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1794         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1795         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1796         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1797         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1798         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1799         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1800         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1801         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1802         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1803         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1804         { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1805         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1806         { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1807         { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1808         { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1809 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1810         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1811         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1812         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1813         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1814         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1815         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1816         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1817         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
1818         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1819         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1820         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1821         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1822         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
1823         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
1824         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
1825         { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1826 #endif
1827         { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1828         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1829         { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1830         { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1831         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
1832         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
1833         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1834         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1835         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1836         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1837         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1838         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1839         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1840         { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1841         { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
1842         { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1843         { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1844         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1845         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1846         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1847         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1848         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1849         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1850         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1851         { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1852         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1853         { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1854         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1855         { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1856         { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1857         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1858         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1859         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1860         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1861         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1862         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1863         { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1864         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1865         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1866         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1867         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1868         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1869         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1870         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1871         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1872         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1873         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1874         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1875         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1876         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1877         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1878         { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1879         { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1880         { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1881         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1882         { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1883         { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1884 
1885         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1886         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1887         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
1888         { }
1889 };
1890 
1891 struct hid_dynid {
1892         struct list_head list;
1893         struct hid_device_id id;
1894 };
1895 
1896 /**
1897  * store_new_id - add a new HID device ID to this driver and re-probe devices
1898  * @driver: target device driver
1899  * @buf: buffer for scanning device ID data
1900  * @count: input size
1901  *
1902  * Adds a new dynamic hid device ID to this driver,
1903  * and causes the driver to probe for all devices again.
1904  */
1905 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1906                 size_t count)
1907 {
1908         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1909         struct hid_dynid *dynid;
1910         __u32 bus, vendor, product;
1911         unsigned long driver_data = 0;
1912         int ret;
1913 
1914         ret = sscanf(buf, "%x %x %x %lx",
1915                         &bus, &vendor, &product, &driver_data);
1916         if (ret < 3)
1917                 return -EINVAL;
1918 
1919         dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1920         if (!dynid)
1921                 return -ENOMEM;
1922 
1923         dynid->id.bus = bus;
1924         dynid->id.group = HID_GROUP_ANY;
1925         dynid->id.vendor = vendor;
1926         dynid->id.product = product;
1927         dynid->id.driver_data = driver_data;
1928 
1929         spin_lock(&hdrv->dyn_lock);
1930         list_add_tail(&dynid->list, &hdrv->dyn_list);
1931         spin_unlock(&hdrv->dyn_lock);
1932 
1933         ret = driver_attach(&hdrv->driver);
1934 
1935         return ret ? : count;
1936 }
1937 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1938 
1939 static void hid_free_dynids(struct hid_driver *hdrv)
1940 {
1941         struct hid_dynid *dynid, *n;
1942 
1943         spin_lock(&hdrv->dyn_lock);
1944         list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1945                 list_del(&dynid->list);
1946                 kfree(dynid);
1947         }
1948         spin_unlock(&hdrv->dyn_lock);
1949 }
1950 
1951 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1952                 struct hid_driver *hdrv)
1953 {
1954         struct hid_dynid *dynid;
1955 
1956         spin_lock(&hdrv->dyn_lock);
1957         list_for_each_entry(dynid, &hdrv->dyn_list, list) {
1958                 if (hid_match_one_id(hdev, &dynid->id)) {
1959                         spin_unlock(&hdrv->dyn_lock);
1960                         return &dynid->id;
1961                 }
1962         }
1963         spin_unlock(&hdrv->dyn_lock);
1964 
1965         return hid_match_id(hdev, hdrv->id_table);
1966 }
1967 
1968 static int hid_bus_match(struct device *dev, struct device_driver *drv)
1969 {
1970         struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1971         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1972 
1973         return hid_match_device(hdev, hdrv) != NULL;
1974 }
1975 
1976 static int hid_device_probe(struct device *dev)
1977 {
1978         struct hid_driver *hdrv = container_of(dev->driver,
1979                         struct hid_driver, driver);
1980         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1981         const struct hid_device_id *id;
1982         int ret = 0;
1983 
1984         if (down_interruptible(&hdev->driver_lock))
1985                 return -EINTR;
1986         if (down_interruptible(&hdev->driver_input_lock)) {
1987                 ret = -EINTR;
1988                 goto unlock_driver_lock;
1989         }
1990         hdev->io_started = false;
1991 
1992         if (!hdev->driver) {
1993                 id = hid_match_device(hdev, hdrv);
1994                 if (id == NULL) {
1995                         ret = -ENODEV;
1996                         goto unlock;
1997                 }
1998 
1999                 hdev->driver = hdrv;
2000                 if (hdrv->probe) {
2001                         ret = hdrv->probe(hdev, id);
2002                 } else { /* default probe */
2003                         ret = hid_open_report(hdev);
2004                         if (!ret)
2005                                 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2006                 }
2007                 if (ret) {
2008                         hid_close_report(hdev);
2009                         hdev->driver = NULL;
2010                 }
2011         }
2012 unlock:
2013         if (!hdev->io_started)
2014                 up(&hdev->driver_input_lock);
2015 unlock_driver_lock:
2016         up(&hdev->driver_lock);
2017         return ret;
2018 }
2019 
2020 static int hid_device_remove(struct device *dev)
2021 {
2022         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2023         struct hid_driver *hdrv;
2024         int ret = 0;
2025 
2026         if (down_interruptible(&hdev->driver_lock))
2027                 return -EINTR;
2028         if (down_interruptible(&hdev->driver_input_lock)) {
2029                 ret = -EINTR;
2030                 goto unlock_driver_lock;
2031         }
2032         hdev->io_started = false;
2033 
2034         hdrv = hdev->driver;
2035         if (hdrv) {
2036                 if (hdrv->remove)
2037                         hdrv->remove(hdev);
2038                 else /* default remove */
2039                         hid_hw_stop(hdev);
2040                 hid_close_report(hdev);
2041                 hdev->driver = NULL;
2042         }
2043 
2044         if (!hdev->io_started)
2045                 up(&hdev->driver_input_lock);
2046 unlock_driver_lock:
2047         up(&hdev->driver_lock);
2048         return ret;
2049 }
2050 
2051 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2052                              char *buf)
2053 {
2054         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2055         int len;
2056 
2057         len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2058                        hdev->bus, hdev->group, hdev->vendor, hdev->product);
2059 
2060         return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
2061 }
2062 static DEVICE_ATTR_RO(modalias);
2063 
2064 static struct attribute *hid_dev_attrs[] = {
2065         &dev_attr_modalias.attr,
2066         NULL,
2067 };
2068 ATTRIBUTE_GROUPS(hid_dev);
2069 
2070 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2071 {
2072         struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2073 
2074         if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2075                         hdev->bus, hdev->vendor, hdev->product))
2076                 return -ENOMEM;
2077 
2078         if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2079                 return -ENOMEM;
2080 
2081         if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2082                 return -ENOMEM;
2083 
2084         if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2085                 return -ENOMEM;
2086 
2087         if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2088                            hdev->bus, hdev->group, hdev->vendor, hdev->product))
2089                 return -ENOMEM;
2090 
2091         return 0;
2092 }
2093 
2094 static struct bus_type hid_bus_type = {
2095         .name           = "hid",
2096         .dev_groups     = hid_dev_groups,
2097         .match          = hid_bus_match,
2098         .probe          = hid_device_probe,
2099         .remove         = hid_device_remove,
2100         .uevent         = hid_uevent,
2101 };
2102 
2103 /* a list of devices that shouldn't be handled by HID core at all */
2104 static const struct hid_device_id hid_ignore_list[] = {
2105         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2106         { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2107         { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2108         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2109         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2110         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2111         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2112         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2113         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2114         { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2115         { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2116         { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2117         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2118         { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2119         { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2120         { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2121         { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2122         { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2123         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2124         { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
2125         { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2126         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2127         { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2128         { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2129         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2130         { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2131         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2132         { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2133         { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2134         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2135         { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2136         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2137         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2138         { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2139         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2140         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2141         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2142         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2143         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2144         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2145         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2146         { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2147         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2148         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2149         { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2150         { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2151         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2152         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2153         { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2154         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2155         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2156         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2157         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2158         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2159         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2160         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2161         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2162         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2163         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2164         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2165         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2166         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2167         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2168         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2169         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2170         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2171         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2172         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2173         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2174         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2175         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2176         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2177         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2178         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2179         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2180         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2181         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2182         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2183         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2184         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2185         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2186         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2187         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2188         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2189         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2190         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2191         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2192         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2193         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2194         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2195         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2196         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2197         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2198         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2199         { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2200         { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2201         { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2202         { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2203         { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2204         { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2205         { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2206         { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2207         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2208         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2209         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2210         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2211         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2212         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2213         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2214         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2215         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2216         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2217         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2218         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2219         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2220         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2221         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2222         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2223         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2224         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2225         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2226         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2227         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2228         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2229         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2230         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2231         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2232         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2233         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2234         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2235         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2236         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2237         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2238         { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2239         { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2240         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2241         { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2242         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2243         { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2244         { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2245         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2246         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2247         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2248         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2249         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2250         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2251         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2252         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2253         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2254         { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2255         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2256         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2257         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2258         { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2259         { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2260         { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2261 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2262         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2263         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2264         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2265         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2266         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2267         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2268         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2269         { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2270 #endif
2271         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2272         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2273         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2274         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2275         { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2276         { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2277         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2278         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2279         { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2280         { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2281         { }
2282 };
2283 
2284 /**
2285  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2286  *
2287  * There are composite devices for which we want to ignore only a certain
2288  * interface. This is a list of devices for which only the mouse interface will
2289  * be ignored. This allows a dedicated driver to take care of the interface.
2290  */
2291 static const struct hid_device_id hid_mouse_ignore_list[] = {
2292         /* appletouch driver */
2293         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2294         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2295         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2296         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2297         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2298         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2299         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2300         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2301         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2302         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2303         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2304         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2305         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2306         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2307         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2308         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2309         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2310         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2311         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2312         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2313         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2314         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2315         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2316         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2317         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2318         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2319         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2320         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2321         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2322         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2323         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2324         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2325         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2326         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2327         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2328         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2329         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2330         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2331         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2332         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2333         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2334         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2335         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2336         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2337         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2338         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2339         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2340         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2341         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2342         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2343         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2344         { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2345         { }
2346 };
2347 
2348 bool hid_ignore(struct hid_device *hdev)
2349 {
2350         if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2351                 return false;
2352         if (hdev->quirks & HID_QUIRK_IGNORE)
2353                 return true;
2354 
2355         switch (hdev->vendor) {
2356         case USB_VENDOR_ID_CODEMERCS:
2357                 /* ignore all Code Mercenaries IOWarrior devices */
2358                 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2359                                 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2360                         return true;
2361                 break;
2362         case USB_VENDOR_ID_LOGITECH:
2363                 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2364                                 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2365                         return true;
2366                 /*
2367                  * The Keene FM transmitter USB device has the same USB ID as
2368                  * the Logitech AudioHub Speaker, but it should ignore the hid.
2369                  * Check if the name is that of the Keene device.
2370                  * For reference: the name of the AudioHub is
2371                  * "HOLTEK  AudioHub Speaker".
2372                  */
2373                 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2374                         !strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
2375                                 return true;
2376                 break;
2377         case USB_VENDOR_ID_SOUNDGRAPH:
2378                 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2379                     hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2380                         return true;
2381                 break;
2382         case USB_VENDOR_ID_HANWANG:
2383                 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2384                     hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2385                         return true;
2386                 break;
2387         case USB_VENDOR_ID_JESS:
2388                 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2389                                 hdev->type == HID_TYPE_USBNONE)
2390                         return true;
2391                 break;
2392         case USB_VENDOR_ID_VELLEMAN:
2393                 /* These are not HID devices.  They are handled by comedi. */
2394                 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2395                      hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2396                     (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2397                      hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2398                         return true;
2399                 break;
2400         case USB_VENDOR_ID_ATMEL_V_USB:
2401                 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2402                  * it has the same USB ID as many Atmel V-USB devices. This
2403                  * usb radio is handled by radio-ma901.c driver so we want
2404                  * ignore the hid. Check the name, bus, product and ignore
2405                  * if we have MA901 usb radio.
2406                  */
2407                 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2408                         hdev->bus == BUS_USB &&
2409                         strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2410                         return true;
2411                 break;
2412         }
2413 
2414         if (hdev->type == HID_TYPE_USBMOUSE &&
2415                         hid_match_id(hdev, hid_mouse_ignore_list))
2416                 return true;
2417 
2418         return !!hid_match_id(hdev, hid_ignore_list);
2419 }
2420 EXPORT_SYMBOL_GPL(hid_ignore);
2421 
2422 int hid_add_device(struct hid_device *hdev)
2423 {
2424         static atomic_t id = ATOMIC_INIT(0);
2425         int ret;
2426 
2427         if (WARN_ON(hdev->status & HID_STAT_ADDED))
2428                 return -EBUSY;
2429 
2430         /* we need to kill them here, otherwise they will stay allocated to
2431          * wait for coming driver */
2432         if (hid_ignore(hdev))
2433                 return -ENODEV;
2434 
2435         /*
2436          * Read the device report descriptor once and use as template
2437          * for the driver-specific modifications.
2438          */
2439         ret = hdev->ll_driver->parse(hdev);
2440         if (ret)
2441                 return ret;
2442         if (!hdev->dev_rdesc)
2443                 return -ENODEV;
2444 
2445         /*
2446          * Scan generic devices for group information
2447          */
2448         if (hid_ignore_special_drivers ||
2449             !hid_match_id(hdev, hid_have_special_driver)) {
2450                 ret = hid_scan_report(hdev);
2451                 if (ret)
2452                         hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2453         }
2454 
2455         /* XXX hack, any other cleaner solution after the driver core
2456          * is converted to allow more than 20 bytes as the device name? */
2457         dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2458                      hdev->vendor, hdev->product, atomic_inc_return(&id));
2459 
2460         hid_debug_register(hdev, dev_name(&hdev->dev));
2461         ret = device_add(&hdev->dev);
2462         if (!ret)
2463                 hdev->status |= HID_STAT_ADDED;
2464         else
2465                 hid_debug_unregister(hdev);
2466 
2467         return ret;
2468 }
2469 EXPORT_SYMBOL_GPL(hid_add_device);
2470 
2471 /**
2472  * hid_allocate_device - allocate new hid device descriptor
2473  *
2474  * Allocate and initialize hid device, so that hid_destroy_device might be
2475  * used to free it.
2476  *
2477  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2478  * error value.
2479  */
2480 struct hid_device *hid_allocate_device(void)
2481 {
2482         struct hid_device *hdev;
2483         int ret = -ENOMEM;
2484 
2485         hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2486         if (hdev == NULL)
2487                 return ERR_PTR(ret);
2488 
2489         device_initialize(&hdev->dev);
2490         hdev->dev.release = hid_device_release;
2491         hdev->dev.bus = &hid_bus_type;
2492 
2493         hid_close_report(hdev);
2494 
2495         init_waitqueue_head(&hdev->debug_wait);
2496         INIT_LIST_HEAD(&hdev->debug_list);
2497         spin_lock_init(&hdev->debug_list_lock);
2498         sema_init(&hdev->driver_lock, 1);
2499         sema_init(&hdev->driver_input_lock, 1);
2500 
2501         return hdev;
2502 }
2503 EXPORT_SYMBOL_GPL(hid_allocate_device);
2504 
2505 static void hid_remove_device(struct hid_device *hdev)
2506 {
2507         if (hdev->status & HID_STAT_ADDED) {
2508                 device_del(&hdev->dev);
2509                 hid_debug_unregister(hdev);
2510                 hdev->status &= ~HID_STAT_ADDED;
2511         }
2512         kfree(hdev->dev_rdesc);
2513         hdev->dev_rdesc = NULL;
2514         hdev->dev_rsize = 0;
2515 }
2516 
2517 /**
2518  * hid_destroy_device - free previously allocated device
2519  *
2520  * @hdev: hid device
2521  *
2522  * If you allocate hid_device through hid_allocate_device, you should ever
2523  * free by this function.
2524  */
2525 void hid_destroy_device(struct hid_device *hdev)
2526 {
2527         hid_remove_device(hdev);
2528         put_device(&hdev->dev);
2529 }
2530 EXPORT_SYMBOL_GPL(hid_destroy_device);
2531 
2532 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2533                 const char *mod_name)
2534 {
2535         int ret;
2536 
2537         hdrv->driver.name = hdrv->name;
2538         hdrv->driver.bus = &hid_bus_type;
2539         hdrv->driver.owner = owner;
2540         hdrv->driver.mod_name = mod_name;
2541 
2542         INIT_LIST_HEAD(&hdrv->dyn_list);
2543         spin_lock_init(&hdrv->dyn_lock);
2544 
2545         ret = driver_register(&hdrv->driver);
2546         if (ret)
2547                 return ret;
2548 
2549         ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2550         if (ret)
2551                 driver_unregister(&hdrv->driver);
2552 
2553         return ret;
2554 }
2555 EXPORT_SYMBOL_GPL(__hid_register_driver);
2556 
2557 void hid_unregister_driver(struct hid_driver *hdrv)
2558 {
2559         driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2560         driver_unregister(&hdrv->driver);
2561         hid_free_dynids(hdrv);
2562 }
2563 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2564 
2565 int hid_check_keys_pressed(struct hid_device *hid)
2566 {
2567         struct hid_input *hidinput;
2568         int i;
2569 
2570         if (!(hid->claimed & HID_CLAIMED_INPUT))
2571                 return 0;
2572 
2573         list_for_each_entry(hidinput, &hid->inputs, list) {
2574                 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2575                         if (hidinput->input->key[i])
2576                                 return 1;
2577         }
2578 
2579         return 0;
2580 }
2581 
2582 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2583 
2584 static int __init hid_init(void)
2585 {
2586         int ret;
2587 
2588         if (hid_debug)
2589                 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2590                         "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2591 
2592         ret = bus_register(&hid_bus_type);
2593         if (ret) {
2594                 pr_err("can't register hid bus\n");
2595                 goto err;
2596         }
2597 
2598         ret = hidraw_init();
2599         if (ret)
2600                 goto err_bus;
2601 
2602         hid_debug_init();
2603 
2604         return 0;
2605 err_bus:
2606         bus_unregister(&hid_bus_type);
2607 err:
2608         return ret;
2609 }
2610 
2611 static void __exit hid_exit(void)
2612 {
2613         hid_debug_exit();
2614         hidraw_exit();
2615         bus_unregister(&hid_bus_type);
2616 }
2617 
2618 module_init(hid_init);
2619 module_exit(hid_exit);
2620 
2621 MODULE_AUTHOR("Andreas Gal");
2622 MODULE_AUTHOR("Vojtech Pavlik");
2623 MODULE_AUTHOR("Jiri Kosina");
2624 MODULE_LICENSE(DRIVER_LICENSE);
2625 
2626 

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