projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
bnx2x: Fix link for KR with swapped polarity lane
[deliverable/linux.git] / 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 /* ignore constant inputs, they will be ignored by hid-input */
722 if (data & HID_MAIN_ITEM_CONSTANT)
723 break;
724 for (i = 0; i < parser->local.usage_index; i++)
725 hid_scan_input_usage(parser, parser->local.usage[i]);
726 break;
727 case HID_MAIN_ITEM_TAG_OUTPUT:
728 break;
729 case HID_MAIN_ITEM_TAG_FEATURE:
730 for (i = 0; i < parser->local.usage_index; i++)
731 hid_scan_feature_usage(parser, parser->local.usage[i]);
732 break;
733 }
734
735 /* Reset the local parser environment */
736 memset(&parser->local, 0, sizeof(parser->local));
737
738 return 0;
739 }
740
741 /*
742 * Scan a report descriptor before the device is added to the bus.
743 * Sets device groups and other properties that determine what driver
744 * to load.
745 */
746 static int hid_scan_report(struct hid_device *hid)
747 {
748 struct hid_parser *parser;
749 struct hid_item item;
750 __u8 *start = hid->dev_rdesc;
751 __u8 *end = start + hid->dev_rsize;
752 static int (*dispatch_type[])(struct hid_parser *parser,
753 struct hid_item *item) = {
754 hid_scan_main,
755 hid_parser_global,
756 hid_parser_local,
757 hid_parser_reserved
758 };
759
760 parser = vzalloc(sizeof(struct hid_parser));
761 if (!parser)
762 return -ENOMEM;
763
764 parser->device = hid;
765 hid->group = HID_GROUP_GENERIC;
766
767 /*
768 * The parsing is simpler than the one in hid_open_report() as we should
769 * be robust against hid errors. Those errors will be raised by
770 * hid_open_report() anyway.
771 */
772 while ((start = fetch_item(start, end, &item)) != NULL)
773 dispatch_type[item.type](parser, &item);
774
775 /*
776 * Handle special flags set during scanning.
777 */
778 if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
779 (hid->group == HID_GROUP_MULTITOUCH))
780 hid->group = HID_GROUP_MULTITOUCH_WIN_8;
781
782 vfree(parser);
783 return 0;
784 }
785
786 /**
787 * hid_parse_report - parse device report
788 *
789 * @device: hid device
790 * @start: report start
791 * @size: report size
792 *
793 * Allocate the device report as read by the bus driver. This function should
794 * only be called from parse() in ll drivers.
795 */
796 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
797 {
798 hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
799 if (!hid->dev_rdesc)
800 return -ENOMEM;
801 hid->dev_rsize = size;
802 return 0;
803 }
804 EXPORT_SYMBOL_GPL(hid_parse_report);
805
806 static const char * const hid_report_names[] = {
807 "HID_INPUT_REPORT",
808 "HID_OUTPUT_REPORT",
809 "HID_FEATURE_REPORT",
810 };
811 /**
812 * hid_validate_values - validate existing device report's value indexes
813 *
814 * @device: hid device
815 * @type: which report type to examine
816 * @id: which report ID to examine (0 for first)
817 * @field_index: which report field to examine
818 * @report_counts: expected number of values
819 *
820 * Validate the number of values in a given field of a given report, after
821 * parsing.
822 */
823 struct hid_report *hid_validate_values(struct hid_device *hid,
824 unsigned int type, unsigned int id,
825 unsigned int field_index,
826 unsigned int report_counts)
827 {
828 struct hid_report *report;
829
830 if (type > HID_FEATURE_REPORT) {
831 hid_err(hid, "invalid HID report type %u\n", type);
832 return NULL;
833 }
834
835 if (id >= HID_MAX_IDS) {
836 hid_err(hid, "invalid HID report id %u\n", id);
837 return NULL;
838 }
839
840 /*
841 * Explicitly not using hid_get_report() here since it depends on
842 * ->numbered being checked, which may not always be the case when
843 * drivers go to access report values.
844 */
845 report = hid->report_enum[type].report_id_hash[id];
846 if (!report) {
847 hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
848 return NULL;
849 }
850 if (report->maxfield <= field_index) {
851 hid_err(hid, "not enough fields in %s %u\n",
852 hid_report_names[type], id);
853 return NULL;
854 }
855 if (report->field[field_index]->report_count < report_counts) {
856 hid_err(hid, "not enough values in %s %u field %u\n",
857 hid_report_names[type], id, field_index);
858 return NULL;
859 }
860 return report;
861 }
862 EXPORT_SYMBOL_GPL(hid_validate_values);
863
864 /**
865 * hid_open_report - open a driver-specific device report
866 *
867 * @device: hid device
868 *
869 * Parse a report description into a hid_device structure. Reports are
870 * enumerated, fields are attached to these reports.
871 * 0 returned on success, otherwise nonzero error value.
872 *
873 * This function (or the equivalent hid_parse() macro) should only be
874 * called from probe() in drivers, before starting the device.
875 */
876 int hid_open_report(struct hid_device *device)
877 {
878 struct hid_parser *parser;
879 struct hid_item item;
880 unsigned int size;
881 __u8 *start;
882 __u8 *buf;
883 __u8 *end;
884 int ret;
885 static int (*dispatch_type[])(struct hid_parser *parser,
886 struct hid_item *item) = {
887 hid_parser_main,
888 hid_parser_global,
889 hid_parser_local,
890 hid_parser_reserved
891 };
892
893 if (WARN_ON(device->status & HID_STAT_PARSED))
894 return -EBUSY;
895
896 start = device->dev_rdesc;
897 if (WARN_ON(!start))
898 return -ENODEV;
899 size = device->dev_rsize;
900
901 buf = kmemdup(start, size, GFP_KERNEL);
902 if (buf == NULL)
903 return -ENOMEM;
904
905 if (device->driver->report_fixup)
906 start = device->driver->report_fixup(device, buf, &size);
907 else
908 start = buf;
909
910 start = kmemdup(start, size, GFP_KERNEL);
911 kfree(buf);
912 if (start == NULL)
913 return -ENOMEM;
914
915 device->rdesc = start;
916 device->rsize = size;
917
918 parser = vzalloc(sizeof(struct hid_parser));
919 if (!parser) {
920 ret = -ENOMEM;
921 goto err;
922 }
923
924 parser->device = device;
925
926 end = start + size;
927
928 device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
929 sizeof(struct hid_collection), GFP_KERNEL);
930 if (!device->collection) {
931 ret = -ENOMEM;
932 goto err;
933 }
934 device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
935
936 ret = -EINVAL;
937 while ((start = fetch_item(start, end, &item)) != NULL) {
938
939 if (item.format != HID_ITEM_FORMAT_SHORT) {
940 hid_err(device, "unexpected long global item\n");
941 goto err;
942 }
943
944 if (dispatch_type[item.type](parser, &item)) {
945 hid_err(device, "item %u %u %u %u parsing failed\n",
946 item.format, (unsigned)item.size,
947 (unsigned)item.type, (unsigned)item.tag);
948 goto err;
949 }
950
951 if (start == end) {
952 if (parser->collection_stack_ptr) {
953 hid_err(device, "unbalanced collection at end of report description\n");
954 goto err;
955 }
956 if (parser->local.delimiter_depth) {
957 hid_err(device, "unbalanced delimiter at end of report description\n");
958 goto err;
959 }
960 vfree(parser);
961 device->status |= HID_STAT_PARSED;
962 return 0;
963 }
964 }
965
966 hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
967 err:
968 vfree(parser);
969 hid_close_report(device);
970 return ret;
971 }
972 EXPORT_SYMBOL_GPL(hid_open_report);
973
974 /*
975 * Convert a signed n-bit integer to signed 32-bit integer. Common
976 * cases are done through the compiler, the screwed things has to be
977 * done by hand.
978 */
979
980 static s32 snto32(__u32 value, unsigned n)
981 {
982 switch (n) {
983 case 8: return ((__s8)value);
984 case 16: return ((__s16)value);
985 case 32: return ((__s32)value);
986 }
987 return value & (1 << (n - 1)) ? value | (-1 << n) : value;
988 }
989
990 s32 hid_snto32(__u32 value, unsigned n)
991 {
992 return snto32(value, n);
993 }
994 EXPORT_SYMBOL_GPL(hid_snto32);
995
996 /*
997 * Convert a signed 32-bit integer to a signed n-bit integer.
998 */
999
1000 static u32 s32ton(__s32 value, unsigned n)
1001 {
1002 s32 a = value >> (n - 1);
1003 if (a && a != -1)
1004 return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1005 return value & ((1 << n) - 1);
1006 }
1007
1008 /*
1009 * Extract/implement a data field from/to a little endian report (bit array).
1010 *
1011 * Code sort-of follows HID spec:
1012 * http://www.usb.org/developers/devclass_docs/HID1_11.pdf
1013 *
1014 * While the USB HID spec allows unlimited length bit fields in "report
1015 * descriptors", most devices never use more than 16 bits.
1016 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1017 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1018 */
1019
1020 static __u32 extract(const struct hid_device *hid, __u8 *report,
1021 unsigned offset, unsigned n)
1022 {
1023 u64 x;
1024
1025 if (n > 32)
1026 hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
1027 n, current->comm);
1028
1029 report += offset >> 3; /* adjust byte index */
1030 offset &= 7; /* now only need bit offset into one byte */
1031 x = get_unaligned_le64(report);
1032 x = (x >> offset) & ((1ULL << n) - 1); /* extract bit field */
1033 return (u32) x;
1034 }
1035
1036 /*
1037 * "implement" : set bits in a little endian bit stream.
1038 * Same concepts as "extract" (see comments above).
1039 * The data mangled in the bit stream remains in little endian
1040 * order the whole time. It make more sense to talk about
1041 * endianness of register values by considering a register
1042 * a "cached" copy of the little endiad bit stream.
1043 */
1044 static void implement(const struct hid_device *hid, __u8 *report,
1045 unsigned offset, unsigned n, __u32 value)
1046 {
1047 u64 x;
1048 u64 m = (1ULL << n) - 1;
1049
1050 if (n > 32)
1051 hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1052 __func__, n, current->comm);
1053
1054 if (value > m)
1055 hid_warn(hid, "%s() called with too large value %d! (%s)\n",
1056 __func__, value, current->comm);
1057 WARN_ON(value > m);
1058 value &= m;
1059
1060 report += offset >> 3;
1061 offset &= 7;
1062
1063 x = get_unaligned_le64(report);
1064 x &= ~(m << offset);
1065 x |= ((u64)value) << offset;
1066 put_unaligned_le64(x, report);
1067 }
1068
1069 /*
1070 * Search an array for a value.
1071 */
1072
1073 static int search(__s32 *array, __s32 value, unsigned n)
1074 {
1075 while (n--) {
1076 if (*array++ == value)
1077 return 0;
1078 }
1079 return -1;
1080 }
1081
1082 /**
1083 * hid_match_report - check if driver's raw_event should be called
1084 *
1085 * @hid: hid device
1086 * @report_type: type to match against
1087 *
1088 * compare hid->driver->report_table->report_type to report->type
1089 */
1090 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1091 {
1092 const struct hid_report_id *id = hid->driver->report_table;
1093
1094 if (!id) /* NULL means all */
1095 return 1;
1096
1097 for (; id->report_type != HID_TERMINATOR; id++)
1098 if (id->report_type == HID_ANY_ID ||
1099 id->report_type == report->type)
1100 return 1;
1101 return 0;
1102 }
1103
1104 /**
1105 * hid_match_usage - check if driver's event should be called
1106 *
1107 * @hid: hid device
1108 * @usage: usage to match against
1109 *
1110 * compare hid->driver->usage_table->usage_{type,code} to
1111 * usage->usage_{type,code}
1112 */
1113 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1114 {
1115 const struct hid_usage_id *id = hid->driver->usage_table;
1116
1117 if (!id) /* NULL means all */
1118 return 1;
1119
1120 for (; id->usage_type != HID_ANY_ID - 1; id++)
1121 if ((id->usage_hid == HID_ANY_ID ||
1122 id->usage_hid == usage->hid) &&
1123 (id->usage_type == HID_ANY_ID ||
1124 id->usage_type == usage->type) &&
1125 (id->usage_code == HID_ANY_ID ||
1126 id->usage_code == usage->code))
1127 return 1;
1128 return 0;
1129 }
1130
1131 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1132 struct hid_usage *usage, __s32 value, int interrupt)
1133 {
1134 struct hid_driver *hdrv = hid->driver;
1135 int ret;
1136
1137 if (!list_empty(&hid->debug_list))
1138 hid_dump_input(hid, usage, value);
1139
1140 if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1141 ret = hdrv->event(hid, field, usage, value);
1142 if (ret != 0) {
1143 if (ret < 0)
1144 hid_err(hid, "%s's event failed with %d\n",
1145 hdrv->name, ret);
1146 return;
1147 }
1148 }
1149
1150 if (hid->claimed & HID_CLAIMED_INPUT)
1151 hidinput_hid_event(hid, field, usage, value);
1152 if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1153 hid->hiddev_hid_event(hid, field, usage, value);
1154 }
1155
1156 /*
1157 * Analyse a received field, and fetch the data from it. The field
1158 * content is stored for next report processing (we do differential
1159 * reporting to the layer).
1160 */
1161
1162 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1163 __u8 *data, int interrupt)
1164 {
1165 unsigned n;
1166 unsigned count = field->report_count;
1167 unsigned offset = field->report_offset;
1168 unsigned size = field->report_size;
1169 __s32 min = field->logical_minimum;
1170 __s32 max = field->logical_maximum;
1171 __s32 *value;
1172
1173 value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1174 if (!value)
1175 return;
1176
1177 for (n = 0; n < count; n++) {
1178
1179 value[n] = min < 0 ?
1180 snto32(extract(hid, data, offset + n * size, size),
1181 size) :
1182 extract(hid, data, offset + n * size, size);
1183
1184 /* Ignore report if ErrorRollOver */
1185 if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1186 value[n] >= min && value[n] <= max &&
1187 field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1188 goto exit;
1189 }
1190
1191 for (n = 0; n < count; n++) {
1192
1193 if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1194 hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1195 continue;
1196 }
1197
1198 if (field->value[n] >= min && field->value[n] <= max
1199 && field->usage[field->value[n] - min].hid
1200 && search(value, field->value[n], count))
1201 hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1202
1203 if (value[n] >= min && value[n] <= max
1204 && field->usage[value[n] - min].hid
1205 && search(field->value, value[n], count))
1206 hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1207 }
1208
1209 memcpy(field->value, value, count * sizeof(__s32));
1210 exit:
1211 kfree(value);
1212 }
1213
1214 /*
1215 * Output the field into the report.
1216 */
1217
1218 static void hid_output_field(const struct hid_device *hid,
1219 struct hid_field *field, __u8 *data)
1220 {
1221 unsigned count = field->report_count;
1222 unsigned offset = field->report_offset;
1223 unsigned size = field->report_size;
1224 unsigned n;
1225
1226 for (n = 0; n < count; n++) {
1227 if (field->logical_minimum < 0) /* signed values */
1228 implement(hid, data, offset + n * size, size,
1229 s32ton(field->value[n], size));
1230 else /* unsigned values */
1231 implement(hid, data, offset + n * size, size,
1232 field->value[n]);
1233 }
1234 }
1235
1236 /*
1237 * Create a report. 'data' has to be allocated using
1238 * hid_alloc_report_buf() so that it has proper size.
1239 */
1240
1241 void hid_output_report(struct hid_report *report, __u8 *data)
1242 {
1243 unsigned n;
1244
1245 if (report->id > 0)
1246 *data++ = report->id;
1247
1248 memset(data, 0, ((report->size - 1) >> 3) + 1);
1249 for (n = 0; n < report->maxfield; n++)
1250 hid_output_field(report->device, report->field[n], data);
1251 }
1252 EXPORT_SYMBOL_GPL(hid_output_report);
1253
1254 static int hid_report_len(struct hid_report *report)
1255 {
1256 /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
1257 return ((report->size - 1) >> 3) + 1 + (report->id > 0);
1258 }
1259
1260 /*
1261 * Allocator for buffer that is going to be passed to hid_output_report()
1262 */
1263 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1264 {
1265 /*
1266 * 7 extra bytes are necessary to achieve proper functionality
1267 * of implement() working on 8 byte chunks
1268 */
1269
1270 int len = hid_report_len(report) + 7;
1271
1272 return kmalloc(len, flags);
1273 }
1274 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1275
1276 /*
1277 * Set a field value. The report this field belongs to has to be
1278 * created and transferred to the device, to set this value in the
1279 * device.
1280 */
1281
1282 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1283 {
1284 unsigned size;
1285
1286 if (!field)
1287 return -1;
1288
1289 size = field->report_size;
1290
1291 hid_dump_input(field->report->device, field->usage + offset, value);
1292
1293 if (offset >= field->report_count) {
1294 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1295 offset, field->report_count);
1296 return -1;
1297 }
1298 if (field->logical_minimum < 0) {
1299 if (value != snto32(s32ton(value, size), size)) {
1300 hid_err(field->report->device, "value %d is out of range\n", value);
1301 return -1;
1302 }
1303 }
1304 field->value[offset] = value;
1305 return 0;
1306 }
1307 EXPORT_SYMBOL_GPL(hid_set_field);
1308
1309 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1310 const u8 *data)
1311 {
1312 struct hid_report *report;
1313 unsigned int n = 0; /* Normally report number is 0 */
1314
1315 /* Device uses numbered reports, data[0] is report number */
1316 if (report_enum->numbered)
1317 n = *data;
1318
1319 report = report_enum->report_id_hash[n];
1320 if (report == NULL)
1321 dbg_hid("undefined report_id %u received\n", n);
1322
1323 return report;
1324 }
1325
1326 /*
1327 * Implement a generic .request() callback, using .raw_request()
1328 * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
1329 */
1330 void __hid_request(struct hid_device *hid, struct hid_report *report,
1331 int reqtype)
1332 {
1333 char *buf;
1334 int ret;
1335 int len;
1336
1337 buf = hid_alloc_report_buf(report, GFP_KERNEL);
1338 if (!buf)
1339 return;
1340
1341 len = hid_report_len(report);
1342
1343 if (reqtype == HID_REQ_SET_REPORT)
1344 hid_output_report(report, buf);
1345
1346 ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
1347 report->type, reqtype);
1348 if (ret < 0) {
1349 dbg_hid("unable to complete request: %d\n", ret);
1350 goto out;
1351 }
1352
1353 if (reqtype == HID_REQ_GET_REPORT)
1354 hid_input_report(hid, report->type, buf, ret, 0);
1355
1356 out:
1357 kfree(buf);
1358 }
1359 EXPORT_SYMBOL_GPL(__hid_request);
1360
1361 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1362 int interrupt)
1363 {
1364 struct hid_report_enum *report_enum = hid->report_enum + type;
1365 struct hid_report *report;
1366 struct hid_driver *hdrv;
1367 unsigned int a;
1368 int rsize, csize = size;
1369 u8 *cdata = data;
1370 int ret = 0;
1371
1372 report = hid_get_report(report_enum, data);
1373 if (!report)
1374 goto out;
1375
1376 if (report_enum->numbered) {
1377 cdata++;
1378 csize--;
1379 }
1380
1381 rsize = ((report->size - 1) >> 3) + 1;
1382
1383 if (rsize > HID_MAX_BUFFER_SIZE)
1384 rsize = HID_MAX_BUFFER_SIZE;
1385
1386 if (csize < rsize) {
1387 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1388 csize, rsize);
1389 memset(cdata + csize, 0, rsize - csize);
1390 }
1391
1392 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1393 hid->hiddev_report_event(hid, report);
1394 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1395 ret = hidraw_report_event(hid, data, size);
1396 if (ret)
1397 goto out;
1398 }
1399
1400 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1401 for (a = 0; a < report->maxfield; a++)
1402 hid_input_field(hid, report->field[a], cdata, interrupt);
1403 hdrv = hid->driver;
1404 if (hdrv && hdrv->report)
1405 hdrv->report(hid, report);
1406 }
1407
1408 if (hid->claimed & HID_CLAIMED_INPUT)
1409 hidinput_report_event(hid, report);
1410 out:
1411 return ret;
1412 }
1413 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1414
1415 /**
1416 * hid_input_report - report data from lower layer (usb, bt...)
1417 *
1418 * @hid: hid device
1419 * @type: HID report type (HID_*_REPORT)
1420 * @data: report contents
1421 * @size: size of data parameter
1422 * @interrupt: distinguish between interrupt and control transfers
1423 *
1424 * This is data entry for lower layers.
1425 */
1426 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1427 {
1428 struct hid_report_enum *report_enum;
1429 struct hid_driver *hdrv;
1430 struct hid_report *report;
1431 int ret = 0;
1432
1433 if (!hid)
1434 return -ENODEV;
1435
1436 if (down_trylock(&hid->driver_input_lock))
1437 return -EBUSY;
1438
1439 if (!hid->driver) {
1440 ret = -ENODEV;
1441 goto unlock;
1442 }
1443 report_enum = hid->report_enum + type;
1444 hdrv = hid->driver;
1445
1446 if (!size) {
1447 dbg_hid("empty report\n");
1448 ret = -1;
1449 goto unlock;
1450 }
1451
1452 /* Avoid unnecessary overhead if debugfs is disabled */
1453 if (!list_empty(&hid->debug_list))
1454 hid_dump_report(hid, type, data, size);
1455
1456 report = hid_get_report(report_enum, data);
1457
1458 if (!report) {
1459 ret = -1;
1460 goto unlock;
1461 }
1462
1463 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1464 ret = hdrv->raw_event(hid, report, data, size);
1465 if (ret < 0)
1466 goto unlock;
1467 }
1468
1469 ret = hid_report_raw_event(hid, type, data, size, interrupt);
1470
1471 unlock:
1472 up(&hid->driver_input_lock);
1473 return ret;
1474 }
1475 EXPORT_SYMBOL_GPL(hid_input_report);
1476
1477 static bool hid_match_one_id(struct hid_device *hdev,
1478 const struct hid_device_id *id)
1479 {
1480 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1481 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1482 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1483 (id->product == HID_ANY_ID || id->product == hdev->product);
1484 }
1485
1486 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1487 const struct hid_device_id *id)
1488 {
1489 for (; id->bus; id++)
1490 if (hid_match_one_id(hdev, id))
1491 return id;
1492
1493 return NULL;
1494 }
1495
1496 static const struct hid_device_id hid_hiddev_list[] = {
1497 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1498 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1499 { }
1500 };
1501
1502 static bool hid_hiddev(struct hid_device *hdev)
1503 {
1504 return !!hid_match_id(hdev, hid_hiddev_list);
1505 }
1506
1507
1508 static ssize_t
1509 read_report_descriptor(struct file *filp, struct kobject *kobj,
1510 struct bin_attribute *attr,
1511 char *buf, loff_t off, size_t count)
1512 {
1513 struct device *dev = container_of(kobj, struct device, kobj);
1514 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1515
1516 if (off >= hdev->rsize)
1517 return 0;
1518
1519 if (off + count > hdev->rsize)
1520 count = hdev->rsize - off;
1521
1522 memcpy(buf, hdev->rdesc + off, count);
1523
1524 return count;
1525 }
1526
1527 static struct bin_attribute dev_bin_attr_report_desc = {
1528 .attr = { .name = "report_descriptor", .mode = 0444 },
1529 .read = read_report_descriptor,
1530 .size = HID_MAX_DESCRIPTOR_SIZE,
1531 };
1532
1533 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1534 {
1535 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1536 "Joystick", "Gamepad", "Keyboard", "Keypad",
1537 "Multi-Axis Controller"
1538 };
1539 const char *type, *bus;
1540 char buf[64];
1541 unsigned int i;
1542 int len;
1543 int ret;
1544
1545 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1546 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1547 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1548 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1549 if (hdev->bus != BUS_USB)
1550 connect_mask &= ~HID_CONNECT_HIDDEV;
1551 if (hid_hiddev(hdev))
1552 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1553
1554 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1555 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1556 hdev->claimed |= HID_CLAIMED_INPUT;
1557
1558 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1559 !hdev->hiddev_connect(hdev,
1560 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1561 hdev->claimed |= HID_CLAIMED_HIDDEV;
1562 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1563 hdev->claimed |= HID_CLAIMED_HIDRAW;
1564
1565 /* Drivers with the ->raw_event callback set are not required to connect
1566 * to any other listener. */
1567 if (!hdev->claimed && !hdev->driver->raw_event) {
1568 hid_err(hdev, "device has no listeners, quitting\n");
1569 return -ENODEV;
1570 }
1571
1572 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1573 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1574 hdev->ff_init(hdev);
1575
1576 len = 0;
1577 if (hdev->claimed & HID_CLAIMED_INPUT)
1578 len += sprintf(buf + len, "input");
1579 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1580 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1581 hdev->minor);
1582 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1583 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1584 ((struct hidraw *)hdev->hidraw)->minor);
1585
1586 type = "Device";
1587 for (i = 0; i < hdev->maxcollection; i++) {
1588 struct hid_collection *col = &hdev->collection[i];
1589 if (col->type == HID_COLLECTION_APPLICATION &&
1590 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1591 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1592 type = types[col->usage & 0xffff];
1593 break;
1594 }
1595 }
1596
1597 switch (hdev->bus) {
1598 case BUS_USB:
1599 bus = "USB";
1600 break;
1601 case BUS_BLUETOOTH:
1602 bus = "BLUETOOTH";
1603 break;
1604 default:
1605 bus = "<UNKNOWN>";
1606 }
1607
1608 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1609 if (ret)
1610 hid_warn(hdev,
1611 "can't create sysfs report descriptor attribute err: %d\n", ret);
1612
1613 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1614 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1615 type, hdev->name, hdev->phys);
1616
1617 return 0;
1618 }
1619 EXPORT_SYMBOL_GPL(hid_connect);
1620
1621 void hid_disconnect(struct hid_device *hdev)
1622 {
1623 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1624 if (hdev->claimed & HID_CLAIMED_INPUT)
1625 hidinput_disconnect(hdev);
1626 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1627 hdev->hiddev_disconnect(hdev);
1628 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1629 hidraw_disconnect(hdev);
1630 }
1631 EXPORT_SYMBOL_GPL(hid_disconnect);
1632
1633 /*
1634 * A list of devices for which there is a specialized driver on HID bus.
1635 *
1636 * Please note that for multitouch devices (driven by hid-multitouch driver),
1637 * there is a proper autodetection and autoloading in place (based on presence
1638 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1639 * as we are doing the right thing in hid_scan_usage().
1640 *
1641 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1642 * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1643 * used as a driver. See hid_scan_report().
1644 */
1645 static const struct hid_device_id hid_have_special_driver[] = {
1646 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1651 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1652 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1653 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1678 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1680 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1681 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1695 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1720 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1721 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1722 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1723 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1724 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1725 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1726 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
1727 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1734 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1735 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1736 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1737 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1747 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1748 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1763 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1764 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
1765 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1766 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1767 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1768 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1769 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1770 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1771 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1772 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1773 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1774 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1775 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1778 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1779 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1780 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1781 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1782 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1783 #endif
1784 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1786 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1787 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1788 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1789 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1803 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1805 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1806 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1807 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1808 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1809 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1810 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1811 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1812 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1813 #endif
1814 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1815 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1816 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1817 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1818 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1819 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1820 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1821 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1822 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1823 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1824 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1825 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1826 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1827 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1828 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
1829 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1830 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1831 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1832 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1833 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1834 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1835 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1836 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1837 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1838 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1839 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1840 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1841 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1842 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1843 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1844 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1845 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1846 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1847 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1848 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1849 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1850 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1851 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1852 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1853 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1854 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1855 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1856 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1857 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1858 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1859 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1860 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1861 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
1862 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1863 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1864 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1865 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1866 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
1867 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
1868 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
1869 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1870 #endif
1871 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1872 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1873 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1874 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1875 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
1876 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
1877 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1878 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1879 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1880 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1881 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1882 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1883 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1884 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1885 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
1886 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1887 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1888 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1889 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1890 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1891 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1892 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1893 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1894 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1895 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1896 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1897 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1898 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1899 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1900 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1901 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1902 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1903 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1904 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1905 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1906 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1907 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1908 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1909 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1910 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1911 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1912 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1913 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1914 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1915 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1916 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1917 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1918 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1919 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1920 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1921 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1922 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1923 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1924 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1925 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1926 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1927 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1928
1929 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1930 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1931 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
1932 { }
1933 };
1934
1935 struct hid_dynid {
1936 struct list_head list;
1937 struct hid_device_id id;
1938 };
1939
1940 /**
1941 * store_new_id - add a new HID device ID to this driver and re-probe devices
1942 * @driver: target device driver
1943 * @buf: buffer for scanning device ID data
1944 * @count: input size
1945 *
1946 * Adds a new dynamic hid device ID to this driver,
1947 * and causes the driver to probe for all devices again.
1948 */
1949 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1950 size_t count)
1951 {
1952 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1953 struct hid_dynid *dynid;
1954 __u32 bus, vendor, product;
1955 unsigned long driver_data = 0;
1956 int ret;
1957
1958 ret = sscanf(buf, "%x %x %x %lx",
1959 &bus, &vendor, &product, &driver_data);
1960 if (ret < 3)
1961 return -EINVAL;
1962
1963 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1964 if (!dynid)
1965 return -ENOMEM;
1966
1967 dynid->id.bus = bus;
1968 dynid->id.group = HID_GROUP_ANY;
1969 dynid->id.vendor = vendor;
1970 dynid->id.product = product;
1971 dynid->id.driver_data = driver_data;
1972
1973 spin_lock(&hdrv->dyn_lock);
1974 list_add_tail(&dynid->list, &hdrv->dyn_list);
1975 spin_unlock(&hdrv->dyn_lock);
1976
1977 ret = driver_attach(&hdrv->driver);
1978
1979 return ret ? : count;
1980 }
1981 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1982
1983 static void hid_free_dynids(struct hid_driver *hdrv)
1984 {
1985 struct hid_dynid *dynid, *n;
1986
1987 spin_lock(&hdrv->dyn_lock);
1988 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1989 list_del(&dynid->list);
1990 kfree(dynid);
1991 }
1992 spin_unlock(&hdrv->dyn_lock);
1993 }
1994
1995 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1996 struct hid_driver *hdrv)
1997 {
1998 struct hid_dynid *dynid;
1999
2000 spin_lock(&hdrv->dyn_lock);
2001 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
2002 if (hid_match_one_id(hdev, &dynid->id)) {
2003 spin_unlock(&hdrv->dyn_lock);
2004 return &dynid->id;
2005 }
2006 }
2007 spin_unlock(&hdrv->dyn_lock);
2008
2009 return hid_match_id(hdev, hdrv->id_table);
2010 }
2011
2012 static int hid_bus_match(struct device *dev, struct device_driver *drv)
2013 {
2014 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
2015 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2016
2017 return hid_match_device(hdev, hdrv) != NULL;
2018 }
2019
2020 static int hid_device_probe(struct device *dev)
2021 {
2022 struct hid_driver *hdrv = container_of(dev->driver,
2023 struct hid_driver, driver);
2024 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2025 const struct hid_device_id *id;
2026 int ret = 0;
2027
2028 if (down_interruptible(&hdev->driver_lock))
2029 return -EINTR;
2030 if (down_interruptible(&hdev->driver_input_lock)) {
2031 ret = -EINTR;
2032 goto unlock_driver_lock;
2033 }
2034 hdev->io_started = false;
2035
2036 if (!hdev->driver) {
2037 id = hid_match_device(hdev, hdrv);
2038 if (id == NULL) {
2039 ret = -ENODEV;
2040 goto unlock;
2041 }
2042
2043 hdev->driver = hdrv;
2044 if (hdrv->probe) {
2045 ret = hdrv->probe(hdev, id);
2046 } else { /* default probe */
2047 ret = hid_open_report(hdev);
2048 if (!ret)
2049 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2050 }
2051 if (ret) {
2052 hid_close_report(hdev);
2053 hdev->driver = NULL;
2054 }
2055 }
2056 unlock:
2057 if (!hdev->io_started)
2058 up(&hdev->driver_input_lock);
2059 unlock_driver_lock:
2060 up(&hdev->driver_lock);
2061 return ret;
2062 }
2063
2064 static int hid_device_remove(struct device *dev)
2065 {
2066 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2067 struct hid_driver *hdrv;
2068 int ret = 0;
2069
2070 if (down_interruptible(&hdev->driver_lock))
2071 return -EINTR;
2072 if (down_interruptible(&hdev->driver_input_lock)) {
2073 ret = -EINTR;
2074 goto unlock_driver_lock;
2075 }
2076 hdev->io_started = false;
2077
2078 hdrv = hdev->driver;
2079 if (hdrv) {
2080 if (hdrv->remove)
2081 hdrv->remove(hdev);
2082 else /* default remove */
2083 hid_hw_stop(hdev);
2084 hid_close_report(hdev);
2085 hdev->driver = NULL;
2086 }
2087
2088 if (!hdev->io_started)
2089 up(&hdev->driver_input_lock);
2090 unlock_driver_lock:
2091 up(&hdev->driver_lock);
2092 return ret;
2093 }
2094
2095 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2096 char *buf)
2097 {
2098 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2099 int len;
2100
2101 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2102 hdev->bus, hdev->group, hdev->vendor, hdev->product);
2103
2104 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
2105 }
2106 static DEVICE_ATTR_RO(modalias);
2107
2108 static struct attribute *hid_dev_attrs[] = {
2109 &dev_attr_modalias.attr,
2110 NULL,
2111 };
2112 ATTRIBUTE_GROUPS(hid_dev);
2113
2114 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2115 {
2116 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2117
2118 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2119 hdev->bus, hdev->vendor, hdev->product))
2120 return -ENOMEM;
2121
2122 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2123 return -ENOMEM;
2124
2125 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2126 return -ENOMEM;
2127
2128 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2129 return -ENOMEM;
2130
2131 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2132 hdev->bus, hdev->group, hdev->vendor, hdev->product))
2133 return -ENOMEM;
2134
2135 return 0;
2136 }
2137
2138 static struct bus_type hid_bus_type = {
2139 .name = "hid",
2140 .dev_groups = hid_dev_groups,
2141 .match = hid_bus_match,
2142 .probe = hid_device_probe,
2143 .remove = hid_device_remove,
2144 .uevent = hid_uevent,
2145 };
2146
2147 /* a list of devices that shouldn't be handled by HID core at all */
2148 static const struct hid_device_id hid_ignore_list[] = {
2149 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2150 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2151 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2152 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2153 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2154 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2155 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2156 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2157 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2158 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2159 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2160 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2161 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2162 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2163 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2164 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2165 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2166 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2167 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2168 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
2169 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2170 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2171 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2172 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2173 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2174 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2175 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2176 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2177 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2178 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2179 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2180 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2181 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2182 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2183 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2184 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2185 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2186 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2187 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2188 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2189 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2190 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2191 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2192 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2193 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2194 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2195 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2196 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2197 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2198 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2199 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2200 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2201 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2202 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2203 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2204 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2205 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2206 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2207 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2208 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2209 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2210 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2211 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2212 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2213 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2214 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2215 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2216 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2217 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2218 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2219 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2220 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2221 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2222 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2223 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2224 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2225 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2226 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2227 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2228 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2229 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2230 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2231 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2232 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2233 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2234 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2235 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2236 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2237 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2238 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2239 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2240 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2241 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2242 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2243 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2244 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2245 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2246 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2247 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2248 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2249 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2250 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2251 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2252 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2253 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2254 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2255 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2256 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2257 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2258 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2259 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2260 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2261 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2262 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2263 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2264 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2265 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2266 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2267 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2268 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2269 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2270 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2271 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2272 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2273 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2274 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2275 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2276 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2277 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2278 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2279 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2280 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2281 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2282 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2283 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2284 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2285 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2286 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2287 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2288 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2289 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2290 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2291 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2292 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2293 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2294 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2295 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2296 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2297 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2298 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2299 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2300 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2301 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2302 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2303 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2304 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2305 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2306 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2307 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2308 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2309 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2310 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2311 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2312 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2313 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2314 #endif
2315 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2316 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2317 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2318 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2319 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2320 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2321 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2322 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2323 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2324 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2325 { HID_USB_DEVICE(USB_VENDOR_ID_RISO_KAGAKU, USB_DEVICE_ID_RI_KA_WEBMAIL) },
2326 { }
2327 };
2328
2329 /**
2330 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2331 *
2332 * There are composite devices for which we want to ignore only a certain
2333 * interface. This is a list of devices for which only the mouse interface will
2334 * be ignored. This allows a dedicated driver to take care of the interface.
2335 */
2336 static const struct hid_device_id hid_mouse_ignore_list[] = {
2337 /* appletouch driver */
2338 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2339 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2340 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2341 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2342 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2343 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2344 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2345 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2346 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2347 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2348 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2349 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2350 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2351 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2352 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2353 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2354 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2355 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2356 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2357 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2358 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2359 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2360 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2361 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2362 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2363 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2364 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2365 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2366 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2367 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2368 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2369 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2370 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2371 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2372 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2373 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2374 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2375 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2376 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2377 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2378 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2379 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2380 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2381 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2382 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2383 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2384 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2385 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2386 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2387 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2388 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2389 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2390 { }
2391 };
2392
2393 bool hid_ignore(struct hid_device *hdev)
2394 {
2395 if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2396 return false;
2397 if (hdev->quirks & HID_QUIRK_IGNORE)
2398 return true;
2399
2400 switch (hdev->vendor) {
2401 case USB_VENDOR_ID_CODEMERCS:
2402 /* ignore all Code Mercenaries IOWarrior devices */
2403 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2404 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2405 return true;
2406 break;
2407 case USB_VENDOR_ID_LOGITECH:
2408 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2409 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2410 return true;
2411 /*
2412 * The Keene FM transmitter USB device has the same USB ID as
2413 * the Logitech AudioHub Speaker, but it should ignore the hid.
2414 * Check if the name is that of the Keene device.
2415 * For reference: the name of the AudioHub is
2416 * "HOLTEK AudioHub Speaker".
2417 */
2418 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2419 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
2420 return true;
2421 break;
2422 case USB_VENDOR_ID_SOUNDGRAPH:
2423 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2424 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2425 return true;
2426 break;
2427 case USB_VENDOR_ID_HANWANG:
2428 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2429 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2430 return true;
2431 break;
2432 case USB_VENDOR_ID_JESS:
2433 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2434 hdev->type == HID_TYPE_USBNONE)
2435 return true;
2436 break;
2437 case USB_VENDOR_ID_VELLEMAN:
2438 /* These are not HID devices. They are handled by comedi. */
2439 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2440 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2441 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2442 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2443 return true;
2444 break;
2445 case USB_VENDOR_ID_ATMEL_V_USB:
2446 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2447 * it has the same USB ID as many Atmel V-USB devices. This
2448 * usb radio is handled by radio-ma901.c driver so we want
2449 * ignore the hid. Check the name, bus, product and ignore
2450 * if we have MA901 usb radio.
2451 */
2452 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2453 hdev->bus == BUS_USB &&
2454 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2455 return true;
2456 break;
2457 }
2458
2459 if (hdev->type == HID_TYPE_USBMOUSE &&
2460 hid_match_id(hdev, hid_mouse_ignore_list))
2461 return true;
2462
2463 return !!hid_match_id(hdev, hid_ignore_list);
2464 }
2465 EXPORT_SYMBOL_GPL(hid_ignore);
2466
2467 int hid_add_device(struct hid_device *hdev)
2468 {
2469 static atomic_t id = ATOMIC_INIT(0);
2470 int ret;
2471
2472 if (WARN_ON(hdev->status & HID_STAT_ADDED))
2473 return -EBUSY;
2474
2475 /* we need to kill them here, otherwise they will stay allocated to
2476 * wait for coming driver */
2477 if (hid_ignore(hdev))
2478 return -ENODEV;
2479
2480 /*
2481 * Check for the mandatory transport channel.
2482 */
2483 if (!hdev->ll_driver->raw_request) {
2484 hid_err(hdev, "transport driver missing .raw_request()\n");
2485 return -EINVAL;
2486 }
2487
2488 /*
2489 * Read the device report descriptor once and use as template
2490 * for the driver-specific modifications.
2491 */
2492 ret = hdev->ll_driver->parse(hdev);
2493 if (ret)
2494 return ret;
2495 if (!hdev->dev_rdesc)
2496 return -ENODEV;
2497
2498 /*
2499 * Scan generic devices for group information
2500 */
2501 if (hid_ignore_special_drivers ||
2502 !hid_match_id(hdev, hid_have_special_driver)) {
2503 ret = hid_scan_report(hdev);
2504 if (ret)
2505 hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2506 }
2507
2508 /* XXX hack, any other cleaner solution after the driver core
2509 * is converted to allow more than 20 bytes as the device name? */
2510 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2511 hdev->vendor, hdev->product, atomic_inc_return(&id));
2512
2513 hid_debug_register(hdev, dev_name(&hdev->dev));
2514 ret = device_add(&hdev->dev);
2515 if (!ret)
2516 hdev->status |= HID_STAT_ADDED;
2517 else
2518 hid_debug_unregister(hdev);
2519
2520 return ret;
2521 }
2522 EXPORT_SYMBOL_GPL(hid_add_device);
2523
2524 /**
2525 * hid_allocate_device - allocate new hid device descriptor
2526 *
2527 * Allocate and initialize hid device, so that hid_destroy_device might be
2528 * used to free it.
2529 *
2530 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2531 * error value.
2532 */
2533 struct hid_device *hid_allocate_device(void)
2534 {
2535 struct hid_device *hdev;
2536 int ret = -ENOMEM;
2537
2538 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2539 if (hdev == NULL)
2540 return ERR_PTR(ret);
2541
2542 device_initialize(&hdev->dev);
2543 hdev->dev.release = hid_device_release;
2544 hdev->dev.bus = &hid_bus_type;
2545
2546 hid_close_report(hdev);
2547
2548 init_waitqueue_head(&hdev->debug_wait);
2549 INIT_LIST_HEAD(&hdev->debug_list);
2550 spin_lock_init(&hdev->debug_list_lock);
2551 sema_init(&hdev->driver_lock, 1);
2552 sema_init(&hdev->driver_input_lock, 1);
2553
2554 return hdev;
2555 }
2556 EXPORT_SYMBOL_GPL(hid_allocate_device);
2557
2558 static void hid_remove_device(struct hid_device *hdev)
2559 {
2560 if (hdev->status & HID_STAT_ADDED) {
2561 device_del(&hdev->dev);
2562 hid_debug_unregister(hdev);
2563 hdev->status &= ~HID_STAT_ADDED;
2564 }
2565 kfree(hdev->dev_rdesc);
2566 hdev->dev_rdesc = NULL;
2567 hdev->dev_rsize = 0;
2568 }
2569
2570 /**
2571 * hid_destroy_device - free previously allocated device
2572 *
2573 * @hdev: hid device
2574 *
2575 * If you allocate hid_device through hid_allocate_device, you should ever
2576 * free by this function.
2577 */
2578 void hid_destroy_device(struct hid_device *hdev)
2579 {
2580 hid_remove_device(hdev);
2581 put_device(&hdev->dev);
2582 }
2583 EXPORT_SYMBOL_GPL(hid_destroy_device);
2584
2585 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2586 const char *mod_name)
2587 {
2588 int ret;
2589
2590 hdrv->driver.name = hdrv->name;
2591 hdrv->driver.bus = &hid_bus_type;
2592 hdrv->driver.owner = owner;
2593 hdrv->driver.mod_name = mod_name;
2594
2595 INIT_LIST_HEAD(&hdrv->dyn_list);
2596 spin_lock_init(&hdrv->dyn_lock);
2597
2598 ret = driver_register(&hdrv->driver);
2599 if (ret)
2600 return ret;
2601
2602 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2603 if (ret)
2604 driver_unregister(&hdrv->driver);
2605
2606 return ret;
2607 }
2608 EXPORT_SYMBOL_GPL(__hid_register_driver);
2609
2610 void hid_unregister_driver(struct hid_driver *hdrv)
2611 {
2612 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2613 driver_unregister(&hdrv->driver);
2614 hid_free_dynids(hdrv);
2615 }
2616 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2617
2618 int hid_check_keys_pressed(struct hid_device *hid)
2619 {
2620 struct hid_input *hidinput;
2621 int i;
2622
2623 if (!(hid->claimed & HID_CLAIMED_INPUT))
2624 return 0;
2625
2626 list_for_each_entry(hidinput, &hid->inputs, list) {
2627 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2628 if (hidinput->input->key[i])
2629 return 1;
2630 }
2631
2632 return 0;
2633 }
2634
2635 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2636
2637 static int __init hid_init(void)
2638 {
2639 int ret;
2640
2641 if (hid_debug)
2642 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2643 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2644
2645 ret = bus_register(&hid_bus_type);
2646 if (ret) {
2647 pr_err("can't register hid bus\n");
2648 goto err;
2649 }
2650
2651 ret = hidraw_init();
2652 if (ret)
2653 goto err_bus;
2654
2655 hid_debug_init();
2656
2657 return 0;
2658 err_bus:
2659 bus_unregister(&hid_bus_type);
2660 err:
2661 return ret;
2662 }
2663
2664 static void __exit hid_exit(void)
2665 {
2666 hid_debug_exit();
2667 hidraw_exit();
2668 bus_unregister(&hid_bus_type);
2669 }
2670
2671 module_init(hid_init);
2672 module_exit(hid_exit);
2673
2674 MODULE_AUTHOR("Andreas Gal");
2675 MODULE_AUTHOR("Vojtech Pavlik");
2676 MODULE_AUTHOR("Jiri Kosina");
2677 MODULE_LICENSE(DRIVER_LICENSE);
2678
Linux kernel - Deliverables
This page took 0.088312 seconds and 5 git commands to generate.