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net: qmi_wwan: add Olivetti Olicard 500
[linux/fpc-iii.git] / drivers / hid / hid-core.c
blob10a2c08664596a3c43d1687cab911ad3fc3ab970
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 return ((report->size - 1) >> 3) + 1 + (report->id > 0) + 7;
1257 }
1258
1259 /*
1260 * Allocator for buffer that is going to be passed to hid_output_report()
1261 */
1262 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1263 {
1264 /*
1265 * 7 extra bytes are necessary to achieve proper functionality
1266 * of implement() working on 8 byte chunks
1267 */
1268
1269 int len = hid_report_len(report);
1270
1271 return kmalloc(len, flags);
1272 }
1273 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1274
1275 /*
1276 * Set a field value. The report this field belongs to has to be
1277 * created and transferred to the device, to set this value in the
1278 * device.
1279 */
1280
1281 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1282 {
1283 unsigned size;
1284
1285 if (!field)
1286 return -1;
1287
1288 size = field->report_size;
1289
1290 hid_dump_input(field->report->device, field->usage + offset, value);
1291
1292 if (offset >= field->report_count) {
1293 hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1294 offset, field->report_count);
1295 return -1;
1296 }
1297 if (field->logical_minimum < 0) {
1298 if (value != snto32(s32ton(value, size), size)) {
1299 hid_err(field->report->device, "value %d is out of range\n", value);
1300 return -1;
1301 }
1302 }
1303 field->value[offset] = value;
1304 return 0;
1305 }
1306 EXPORT_SYMBOL_GPL(hid_set_field);
1307
1308 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1309 const u8 *data)
1310 {
1311 struct hid_report *report;
1312 unsigned int n = 0; /* Normally report number is 0 */
1313
1314 /* Device uses numbered reports, data[0] is report number */
1315 if (report_enum->numbered)
1316 n = *data;
1317
1318 report = report_enum->report_id_hash[n];
1319 if (report == NULL)
1320 dbg_hid("undefined report_id %u received\n", n);
1321
1322 return report;
1323 }
1324
1325 /*
1326 * Implement a generic .request() callback, using .raw_request()
1327 * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
1328 */
1329 void __hid_request(struct hid_device *hid, struct hid_report *report,
1330 int reqtype)
1331 {
1332 char *buf;
1333 int ret;
1334 int len;
1335
1336 buf = hid_alloc_report_buf(report, GFP_KERNEL);
1337 if (!buf)
1338 return;
1339
1340 len = hid_report_len(report);
1341
1342 if (reqtype == HID_REQ_SET_REPORT)
1343 hid_output_report(report, buf);
1344
1345 ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
1346 report->type, reqtype);
1347 if (ret < 0) {
1348 dbg_hid("unable to complete request: %d\n", ret);
1349 goto out;
1350 }
1351
1352 if (reqtype == HID_REQ_GET_REPORT)
1353 hid_input_report(hid, report->type, buf, ret, 0);
1354
1355 out:
1356 kfree(buf);
1357 }
1358 EXPORT_SYMBOL_GPL(__hid_request);
1359
1360 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1361 int interrupt)
1362 {
1363 struct hid_report_enum *report_enum = hid->report_enum + type;
1364 struct hid_report *report;
1365 struct hid_driver *hdrv;
1366 unsigned int a;
1367 int rsize, csize = size;
1368 u8 *cdata = data;
1369 int ret = 0;
1370
1371 report = hid_get_report(report_enum, data);
1372 if (!report)
1373 goto out;
1374
1375 if (report_enum->numbered) {
1376 cdata++;
1377 csize--;
1378 }
1379
1380 rsize = ((report->size - 1) >> 3) + 1;
1381
1382 if (rsize > HID_MAX_BUFFER_SIZE)
1383 rsize = HID_MAX_BUFFER_SIZE;
1384
1385 if (csize < rsize) {
1386 dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1387 csize, rsize);
1388 memset(cdata + csize, 0, rsize - csize);
1389 }
1390
1391 if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1392 hid->hiddev_report_event(hid, report);
1393 if (hid->claimed & HID_CLAIMED_HIDRAW) {
1394 ret = hidraw_report_event(hid, data, size);
1395 if (ret)
1396 goto out;
1397 }
1398
1399 if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1400 for (a = 0; a < report->maxfield; a++)
1401 hid_input_field(hid, report->field[a], cdata, interrupt);
1402 hdrv = hid->driver;
1403 if (hdrv && hdrv->report)
1404 hdrv->report(hid, report);
1405 }
1406
1407 if (hid->claimed & HID_CLAIMED_INPUT)
1408 hidinput_report_event(hid, report);
1409 out:
1410 return ret;
1411 }
1412 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1413
1414 /**
1415 * hid_input_report - report data from lower layer (usb, bt...)
1416 *
1417 * @hid: hid device
1418 * @type: HID report type (HID_*_REPORT)
1419 * @data: report contents
1420 * @size: size of data parameter
1421 * @interrupt: distinguish between interrupt and control transfers
1422 *
1423 * This is data entry for lower layers.
1424 */
1425 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1426 {
1427 struct hid_report_enum *report_enum;
1428 struct hid_driver *hdrv;
1429 struct hid_report *report;
1430 int ret = 0;
1431
1432 if (!hid)
1433 return -ENODEV;
1434
1435 if (down_trylock(&hid->driver_input_lock))
1436 return -EBUSY;
1437
1438 if (!hid->driver) {
1439 ret = -ENODEV;
1440 goto unlock;
1441 }
1442 report_enum = hid->report_enum + type;
1443 hdrv = hid->driver;
1444
1445 if (!size) {
1446 dbg_hid("empty report\n");
1447 ret = -1;
1448 goto unlock;
1449 }
1450
1451 /* Avoid unnecessary overhead if debugfs is disabled */
1452 if (!list_empty(&hid->debug_list))
1453 hid_dump_report(hid, type, data, size);
1454
1455 report = hid_get_report(report_enum, data);
1456
1457 if (!report) {
1458 ret = -1;
1459 goto unlock;
1460 }
1461
1462 if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1463 ret = hdrv->raw_event(hid, report, data, size);
1464 if (ret < 0)
1465 goto unlock;
1466 }
1467
1468 ret = hid_report_raw_event(hid, type, data, size, interrupt);
1469
1470 unlock:
1471 up(&hid->driver_input_lock);
1472 return ret;
1473 }
1474 EXPORT_SYMBOL_GPL(hid_input_report);
1475
1476 static bool hid_match_one_id(struct hid_device *hdev,
1477 const struct hid_device_id *id)
1478 {
1479 return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1480 (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1481 (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1482 (id->product == HID_ANY_ID || id->product == hdev->product);
1483 }
1484
1485 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1486 const struct hid_device_id *id)
1487 {
1488 for (; id->bus; id++)
1489 if (hid_match_one_id(hdev, id))
1490 return id;
1491
1492 return NULL;
1493 }
1494
1495 static const struct hid_device_id hid_hiddev_list[] = {
1496 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1497 { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1498 { }
1499 };
1500
1501 static bool hid_hiddev(struct hid_device *hdev)
1502 {
1503 return !!hid_match_id(hdev, hid_hiddev_list);
1504 }
1505
1506
1507 static ssize_t
1508 read_report_descriptor(struct file *filp, struct kobject *kobj,
1509 struct bin_attribute *attr,
1510 char *buf, loff_t off, size_t count)
1511 {
1512 struct device *dev = container_of(kobj, struct device, kobj);
1513 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1514
1515 if (off >= hdev->rsize)
1516 return 0;
1517
1518 if (off + count > hdev->rsize)
1519 count = hdev->rsize - off;
1520
1521 memcpy(buf, hdev->rdesc + off, count);
1522
1523 return count;
1524 }
1525
1526 static struct bin_attribute dev_bin_attr_report_desc = {
1527 .attr = { .name = "report_descriptor", .mode = 0444 },
1528 .read = read_report_descriptor,
1529 .size = HID_MAX_DESCRIPTOR_SIZE,
1530 };
1531
1532 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1533 {
1534 static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1535 "Joystick", "Gamepad", "Keyboard", "Keypad",
1536 "Multi-Axis Controller"
1537 };
1538 const char *type, *bus;
1539 char buf[64];
1540 unsigned int i;
1541 int len;
1542 int ret;
1543
1544 if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1545 connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1546 if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1547 connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1548 if (hdev->bus != BUS_USB)
1549 connect_mask &= ~HID_CONNECT_HIDDEV;
1550 if (hid_hiddev(hdev))
1551 connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1552
1553 if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1554 connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1555 hdev->claimed |= HID_CLAIMED_INPUT;
1556
1557 if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1558 !hdev->hiddev_connect(hdev,
1559 connect_mask & HID_CONNECT_HIDDEV_FORCE))
1560 hdev->claimed |= HID_CLAIMED_HIDDEV;
1561 if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1562 hdev->claimed |= HID_CLAIMED_HIDRAW;
1563
1564 /* Drivers with the ->raw_event callback set are not required to connect
1565 * to any other listener. */
1566 if (!hdev->claimed && !hdev->driver->raw_event) {
1567 hid_err(hdev, "device has no listeners, quitting\n");
1568 return -ENODEV;
1569 }
1570
1571 if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1572 (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1573 hdev->ff_init(hdev);
1574
1575 len = 0;
1576 if (hdev->claimed & HID_CLAIMED_INPUT)
1577 len += sprintf(buf + len, "input");
1578 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1579 len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1580 hdev->minor);
1581 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1582 len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1583 ((struct hidraw *)hdev->hidraw)->minor);
1584
1585 type = "Device";
1586 for (i = 0; i < hdev->maxcollection; i++) {
1587 struct hid_collection *col = &hdev->collection[i];
1588 if (col->type == HID_COLLECTION_APPLICATION &&
1589 (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1590 (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1591 type = types[col->usage & 0xffff];
1592 break;
1593 }
1594 }
1595
1596 switch (hdev->bus) {
1597 case BUS_USB:
1598 bus = "USB";
1599 break;
1600 case BUS_BLUETOOTH:
1601 bus = "BLUETOOTH";
1602 break;
1603 default:
1604 bus = "<UNKNOWN>";
1605 }
1606
1607 ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1608 if (ret)
1609 hid_warn(hdev,
1610 "can't create sysfs report descriptor attribute err: %d\n", ret);
1611
1612 hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1613 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1614 type, hdev->name, hdev->phys);
1615
1616 return 0;
1617 }
1618 EXPORT_SYMBOL_GPL(hid_connect);
1619
1620 void hid_disconnect(struct hid_device *hdev)
1621 {
1622 device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
1623 if (hdev->claimed & HID_CLAIMED_INPUT)
1624 hidinput_disconnect(hdev);
1625 if (hdev->claimed & HID_CLAIMED_HIDDEV)
1626 hdev->hiddev_disconnect(hdev);
1627 if (hdev->claimed & HID_CLAIMED_HIDRAW)
1628 hidraw_disconnect(hdev);
1629 }
1630 EXPORT_SYMBOL_GPL(hid_disconnect);
1631
1632 /*
1633 * A list of devices for which there is a specialized driver on HID bus.
1634 *
1635 * Please note that for multitouch devices (driven by hid-multitouch driver),
1636 * there is a proper autodetection and autoloading in place (based on presence
1637 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1638 * as we are doing the right thing in hid_scan_usage().
1639 *
1640 * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1641 * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1642 * used as a driver. See hid_scan_report().
1643 */
1644 static const struct hid_device_id hid_have_special_driver[] = {
1645 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1646 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1647 { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1648 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1649 { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1650 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1651 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1652 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1653 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1654 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1655 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1656 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1657 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1658 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1659 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1660 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1661 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1662 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1663 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1664 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1665 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1666 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1667 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1668 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1669 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1670 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1671 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1672 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1673 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1674 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1675 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1676 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1677 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1678 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1679 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1680 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1681 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1682 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1683 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1684 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1685 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1686 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1687 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1688 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1689 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1690 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1691 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1692 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1693 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1694 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1695 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1696 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1697 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1698 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1699 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1700 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1701 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1702 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1703 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1704 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1705 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1706 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1707 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1708 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1709 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1710 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1711 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1712 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1713 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1714 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1715 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1716 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1717 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1718 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1719 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1720 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1721 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1722 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1723 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1724 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1725 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
1726 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1727 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1728 { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1729 { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1730 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1731 { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1732 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1733 { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1734 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1735 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1736 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1737 { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1738 { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1739 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
1740 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1741 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1742 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1743 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1744 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1745 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1746 { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1747 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1748 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1749 { HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1750 { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1751 { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1752 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1753 { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1754 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1755 { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1756 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1757 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1758 { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1759 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1760 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1761 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1762 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1763 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
1764 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1765 { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1766 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_580) },
1767 { HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1768 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1769 { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1770 { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1771 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1772 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1773 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1774 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1775 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1776 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1777 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1778 { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1779 { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1780 #if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
1781 { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1782 #endif
1783 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1784 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1785 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1786 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1787 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1788 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1789 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1790 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1791 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1792 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1793 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1794 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1795 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1796 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1797 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1798 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1799 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1800 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1801 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1802 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1803 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1804 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1805 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1806 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1807 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1808 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1809 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1810 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1811 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1812 #endif
1813 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1814 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1815 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1816 { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1817 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1818 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1819 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1820 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1821 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1822 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1823 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1824 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1825 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1826 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1827 { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
1828 { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1829 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1830 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1831 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1832 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1833 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1834 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1835 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1836 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
1837 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
1838 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
1839 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
1840 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
1841 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
1842 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
1843 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
1844 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
1845 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
1846 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
1847 { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
1848 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
1849 { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
1850 { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
1851 { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
1852 #if IS_ENABLED(CONFIG_HID_ROCCAT)
1853 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
1854 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
1855 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
1856 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
1857 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
1858 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
1859 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
1860 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
1861 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
1862 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
1863 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
1864 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
1865 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
1866 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
1867 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
1868 { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
1869 #endif
1870 { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
1871 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
1872 { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
1873 { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
1874 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
1875 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
1876 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
1877 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1878 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
1879 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
1880 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1881 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
1882 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
1883 { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
1884 { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
1885 { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
1886 { HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
1887 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
1888 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
1889 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
1890 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
1891 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
1892 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
1893 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
1894 { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
1895 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
1896 { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
1897 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
1898 { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
1899 { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
1900 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
1901 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
1902 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
1903 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
1904 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
1905 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
1906 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
1907 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
1908 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
1909 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
1910 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
1911 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
1912 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
1913 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
1914 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
1915 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
1916 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
1917 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
1918 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
1919 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
1920 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
1921 { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
1922 { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
1923 { HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
1924 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
1925 { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
1926 { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
1927
1928 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
1929 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
1930 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
1931 { }
1932 };
1933
1934 struct hid_dynid {
1935 struct list_head list;
1936 struct hid_device_id id;
1937 };
1938
1939 /**
1940 * store_new_id - add a new HID device ID to this driver and re-probe devices
1941 * @driver: target device driver
1942 * @buf: buffer for scanning device ID data
1943 * @count: input size
1944 *
1945 * Adds a new dynamic hid device ID to this driver,
1946 * and causes the driver to probe for all devices again.
1947 */
1948 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
1949 size_t count)
1950 {
1951 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
1952 struct hid_dynid *dynid;
1953 __u32 bus, vendor, product;
1954 unsigned long driver_data = 0;
1955 int ret;
1956
1957 ret = sscanf(buf, "%x %x %x %lx",
1958 &bus, &vendor, &product, &driver_data);
1959 if (ret < 3)
1960 return -EINVAL;
1961
1962 dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
1963 if (!dynid)
1964 return -ENOMEM;
1965
1966 dynid->id.bus = bus;
1967 dynid->id.group = HID_GROUP_ANY;
1968 dynid->id.vendor = vendor;
1969 dynid->id.product = product;
1970 dynid->id.driver_data = driver_data;
1971
1972 spin_lock(&hdrv->dyn_lock);
1973 list_add_tail(&dynid->list, &hdrv->dyn_list);
1974 spin_unlock(&hdrv->dyn_lock);
1975
1976 ret = driver_attach(&hdrv->driver);
1977
1978 return ret ? : count;
1979 }
1980 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
1981
1982 static void hid_free_dynids(struct hid_driver *hdrv)
1983 {
1984 struct hid_dynid *dynid, *n;
1985
1986 spin_lock(&hdrv->dyn_lock);
1987 list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
1988 list_del(&dynid->list);
1989 kfree(dynid);
1990 }
1991 spin_unlock(&hdrv->dyn_lock);
1992 }
1993
1994 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
1995 struct hid_driver *hdrv)
1996 {
1997 struct hid_dynid *dynid;
1998
1999 spin_lock(&hdrv->dyn_lock);
2000 list_for_each_entry(dynid, &hdrv->dyn_list, list) {
2001 if (hid_match_one_id(hdev, &dynid->id)) {
2002 spin_unlock(&hdrv->dyn_lock);
2003 return &dynid->id;
2004 }
2005 }
2006 spin_unlock(&hdrv->dyn_lock);
2007
2008 return hid_match_id(hdev, hdrv->id_table);
2009 }
2010
2011 static int hid_bus_match(struct device *dev, struct device_driver *drv)
2012 {
2013 struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
2014 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2015
2016 return hid_match_device(hdev, hdrv) != NULL;
2017 }
2018
2019 static int hid_device_probe(struct device *dev)
2020 {
2021 struct hid_driver *hdrv = container_of(dev->driver,
2022 struct hid_driver, driver);
2023 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2024 const struct hid_device_id *id;
2025 int ret = 0;
2026
2027 if (down_interruptible(&hdev->driver_lock))
2028 return -EINTR;
2029 if (down_interruptible(&hdev->driver_input_lock)) {
2030 ret = -EINTR;
2031 goto unlock_driver_lock;
2032 }
2033 hdev->io_started = false;
2034
2035 if (!hdev->driver) {
2036 id = hid_match_device(hdev, hdrv);
2037 if (id == NULL) {
2038 ret = -ENODEV;
2039 goto unlock;
2040 }
2041
2042 hdev->driver = hdrv;
2043 if (hdrv->probe) {
2044 ret = hdrv->probe(hdev, id);
2045 } else { /* default probe */
2046 ret = hid_open_report(hdev);
2047 if (!ret)
2048 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2049 }
2050 if (ret) {
2051 hid_close_report(hdev);
2052 hdev->driver = NULL;
2053 }
2054 }
2055 unlock:
2056 if (!hdev->io_started)
2057 up(&hdev->driver_input_lock);
2058 unlock_driver_lock:
2059 up(&hdev->driver_lock);
2060 return ret;
2061 }
2062
2063 static int hid_device_remove(struct device *dev)
2064 {
2065 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2066 struct hid_driver *hdrv;
2067 int ret = 0;
2068
2069 if (down_interruptible(&hdev->driver_lock))
2070 return -EINTR;
2071 if (down_interruptible(&hdev->driver_input_lock)) {
2072 ret = -EINTR;
2073 goto unlock_driver_lock;
2074 }
2075 hdev->io_started = false;
2076
2077 hdrv = hdev->driver;
2078 if (hdrv) {
2079 if (hdrv->remove)
2080 hdrv->remove(hdev);
2081 else /* default remove */
2082 hid_hw_stop(hdev);
2083 hid_close_report(hdev);
2084 hdev->driver = NULL;
2085 }
2086
2087 if (!hdev->io_started)
2088 up(&hdev->driver_input_lock);
2089 unlock_driver_lock:
2090 up(&hdev->driver_lock);
2091 return ret;
2092 }
2093
2094 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2095 char *buf)
2096 {
2097 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2098 int len;
2099
2100 len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2101 hdev->bus, hdev->group, hdev->vendor, hdev->product);
2102
2103 return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
2104 }
2105 static DEVICE_ATTR_RO(modalias);
2106
2107 static struct attribute *hid_dev_attrs[] = {
2108 &dev_attr_modalias.attr,
2109 NULL,
2110 };
2111 ATTRIBUTE_GROUPS(hid_dev);
2112
2113 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2114 {
2115 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2116
2117 if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2118 hdev->bus, hdev->vendor, hdev->product))
2119 return -ENOMEM;
2120
2121 if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2122 return -ENOMEM;
2123
2124 if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2125 return -ENOMEM;
2126
2127 if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2128 return -ENOMEM;
2129
2130 if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2131 hdev->bus, hdev->group, hdev->vendor, hdev->product))
2132 return -ENOMEM;
2133
2134 return 0;
2135 }
2136
2137 static struct bus_type hid_bus_type = {
2138 .name = "hid",
2139 .dev_groups = hid_dev_groups,
2140 .match = hid_bus_match,
2141 .probe = hid_device_probe,
2142 .remove = hid_device_remove,
2143 .uevent = hid_uevent,
2144 };
2145
2146 /* a list of devices that shouldn't be handled by HID core at all */
2147 static const struct hid_device_id hid_ignore_list[] = {
2148 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2149 { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2150 { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2151 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2152 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2153 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2154 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2155 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2156 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2157 { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2158 { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2159 { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2160 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2161 { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2162 { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2163 { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2164 { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2165 { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2166 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2167 { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
2168 { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2169 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2170 { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2171 { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2172 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2173 { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2174 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
2175 { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
2176 { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2177 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2178 { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2179 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2180 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2181 { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2182 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
2183 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
2184 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
2185 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
2186 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
2187 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
2188 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
2189 { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
2190 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2191 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2192 { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2193 { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2194 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2195 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2196 { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2197 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2198 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2199 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2200 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2201 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2202 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2203 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2204 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2205 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2206 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2207 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2208 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2209 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2210 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2211 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2212 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2213 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2214 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2215 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2216 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2217 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2218 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2219 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2220 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2221 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2222 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2223 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2224 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2225 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2226 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2227 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2228 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2229 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2230 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2231 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2232 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2233 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2234 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2235 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2236 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2237 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2238 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2239 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2240 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2241 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2242 { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2243 { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2244 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2245 { HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2246 { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2247 { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2248 { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2249 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2250 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2251 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2252 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2253 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2254 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2255 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2256 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2257 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2258 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2259 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2260 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2261 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2262 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2263 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2264 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2265 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2266 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2267 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2268 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2269 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2270 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2271 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2272 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2273 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2274 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2275 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2276 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2277 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2278 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2279 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2280 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2281 { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2282 { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2283 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2284 { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2285 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2286 { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2287 { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2288 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2289 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2290 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2291 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2292 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2293 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2294 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2295 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2296 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2297 { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2298 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2299 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2300 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2301 { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2302 { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2303 { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2304 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2305 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2306 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2307 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2308 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2309 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2310 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2311 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2312 { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2313 #endif
2314 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
2315 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
2316 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
2317 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
2318 { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
2319 { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
2320 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
2321 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
2322 { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
2323 { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2324 { HID_USB_DEVICE(USB_VENDOR_ID_RISO_KAGAKU, USB_DEVICE_ID_RI_KA_WEBMAIL) },
2325 { }
2326 };
2327
2328 /**
2329 * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2330 *
2331 * There are composite devices for which we want to ignore only a certain
2332 * interface. This is a list of devices for which only the mouse interface will
2333 * be ignored. This allows a dedicated driver to take care of the interface.
2334 */
2335 static const struct hid_device_id hid_mouse_ignore_list[] = {
2336 /* appletouch driver */
2337 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2338 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2339 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2340 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2341 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2342 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2343 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2344 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2345 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2346 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2347 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2348 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2349 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2350 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2351 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2352 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2353 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2354 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2355 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2356 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2357 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2358 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2359 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2360 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2361 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2362 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2363 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2364 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2365 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2366 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2367 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2368 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2369 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2370 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2371 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2372 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2373 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2374 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2375 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2376 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2377 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2378 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2379 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2380 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2381 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2382 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2383 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2384 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2385 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2386 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2387 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2388 { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2389 { }
2390 };
2391
2392 bool hid_ignore(struct hid_device *hdev)
2393 {
2394 if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2395 return false;
2396 if (hdev->quirks & HID_QUIRK_IGNORE)
2397 return true;
2398
2399 switch (hdev->vendor) {
2400 case USB_VENDOR_ID_CODEMERCS:
2401 /* ignore all Code Mercenaries IOWarrior devices */
2402 if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2403 hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2404 return true;
2405 break;
2406 case USB_VENDOR_ID_LOGITECH:
2407 if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2408 hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2409 return true;
2410 /*
2411 * The Keene FM transmitter USB device has the same USB ID as
2412 * the Logitech AudioHub Speaker, but it should ignore the hid.
2413 * Check if the name is that of the Keene device.
2414 * For reference: the name of the AudioHub is
2415 * "HOLTEK AudioHub Speaker".
2416 */
2417 if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2418 !strcmp(hdev->name, "HOLTEK B-LINK USB Audio "))
2419 return true;
2420 break;
2421 case USB_VENDOR_ID_SOUNDGRAPH:
2422 if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2423 hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2424 return true;
2425 break;
2426 case USB_VENDOR_ID_HANWANG:
2427 if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2428 hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2429 return true;
2430 break;
2431 case USB_VENDOR_ID_JESS:
2432 if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2433 hdev->type == HID_TYPE_USBNONE)
2434 return true;
2435 break;
2436 case USB_VENDOR_ID_VELLEMAN:
2437 /* These are not HID devices. They are handled by comedi. */
2438 if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2439 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2440 (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2441 hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2442 return true;
2443 break;
2444 case USB_VENDOR_ID_ATMEL_V_USB:
2445 /* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2446 * it has the same USB ID as many Atmel V-USB devices. This
2447 * usb radio is handled by radio-ma901.c driver so we want
2448 * ignore the hid. Check the name, bus, product and ignore
2449 * if we have MA901 usb radio.
2450 */
2451 if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2452 hdev->bus == BUS_USB &&
2453 strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2454 return true;
2455 break;
2456 }
2457
2458 if (hdev->type == HID_TYPE_USBMOUSE &&
2459 hid_match_id(hdev, hid_mouse_ignore_list))
2460 return true;
2461
2462 return !!hid_match_id(hdev, hid_ignore_list);
2463 }
2464 EXPORT_SYMBOL_GPL(hid_ignore);
2465
2466 int hid_add_device(struct hid_device *hdev)
2467 {
2468 static atomic_t id = ATOMIC_INIT(0);
2469 int ret;
2470
2471 if (WARN_ON(hdev->status & HID_STAT_ADDED))
2472 return -EBUSY;
2473
2474 /* we need to kill them here, otherwise they will stay allocated to
2475 * wait for coming driver */
2476 if (hid_ignore(hdev))
2477 return -ENODEV;
2478
2479 /*
2480 * Check for the mandatory transport channel.
2481 */
2482 if (!hdev->ll_driver->raw_request) {
2483 hid_err(hdev, "transport driver missing .raw_request()\n");
2484 return -EINVAL;
2485 }
2486
2487 /*
2488 * Read the device report descriptor once and use as template
2489 * for the driver-specific modifications.
2490 */
2491 ret = hdev->ll_driver->parse(hdev);
2492 if (ret)
2493 return ret;
2494 if (!hdev->dev_rdesc)
2495 return -ENODEV;
2496
2497 /*
2498 * Scan generic devices for group information
2499 */
2500 if (hid_ignore_special_drivers ||
2501 !hid_match_id(hdev, hid_have_special_driver)) {
2502 ret = hid_scan_report(hdev);
2503 if (ret)
2504 hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2505 }
2506
2507 /* XXX hack, any other cleaner solution after the driver core
2508 * is converted to allow more than 20 bytes as the device name? */
2509 dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2510 hdev->vendor, hdev->product, atomic_inc_return(&id));
2511
2512 hid_debug_register(hdev, dev_name(&hdev->dev));
2513 ret = device_add(&hdev->dev);
2514 if (!ret)
2515 hdev->status |= HID_STAT_ADDED;
2516 else
2517 hid_debug_unregister(hdev);
2518
2519 return ret;
2520 }
2521 EXPORT_SYMBOL_GPL(hid_add_device);
2522
2523 /**
2524 * hid_allocate_device - allocate new hid device descriptor
2525 *
2526 * Allocate and initialize hid device, so that hid_destroy_device might be
2527 * used to free it.
2528 *
2529 * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2530 * error value.
2531 */
2532 struct hid_device *hid_allocate_device(void)
2533 {
2534 struct hid_device *hdev;
2535 int ret = -ENOMEM;
2536
2537 hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2538 if (hdev == NULL)
2539 return ERR_PTR(ret);
2540
2541 device_initialize(&hdev->dev);
2542 hdev->dev.release = hid_device_release;
2543 hdev->dev.bus = &hid_bus_type;
2544
2545 hid_close_report(hdev);
2546
2547 init_waitqueue_head(&hdev->debug_wait);
2548 INIT_LIST_HEAD(&hdev->debug_list);
2549 spin_lock_init(&hdev->debug_list_lock);
2550 sema_init(&hdev->driver_lock, 1);
2551 sema_init(&hdev->driver_input_lock, 1);
2552
2553 return hdev;
2554 }
2555 EXPORT_SYMBOL_GPL(hid_allocate_device);
2556
2557 static void hid_remove_device(struct hid_device *hdev)
2558 {
2559 if (hdev->status & HID_STAT_ADDED) {
2560 device_del(&hdev->dev);
2561 hid_debug_unregister(hdev);
2562 hdev->status &= ~HID_STAT_ADDED;
2563 }
2564 kfree(hdev->dev_rdesc);
2565 hdev->dev_rdesc = NULL;
2566 hdev->dev_rsize = 0;
2567 }
2568
2569 /**
2570 * hid_destroy_device - free previously allocated device
2571 *
2572 * @hdev: hid device
2573 *
2574 * If you allocate hid_device through hid_allocate_device, you should ever
2575 * free by this function.
2576 */
2577 void hid_destroy_device(struct hid_device *hdev)
2578 {
2579 hid_remove_device(hdev);
2580 put_device(&hdev->dev);
2581 }
2582 EXPORT_SYMBOL_GPL(hid_destroy_device);
2583
2584 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2585 const char *mod_name)
2586 {
2587 int ret;
2588
2589 hdrv->driver.name = hdrv->name;
2590 hdrv->driver.bus = &hid_bus_type;
2591 hdrv->driver.owner = owner;
2592 hdrv->driver.mod_name = mod_name;
2593
2594 INIT_LIST_HEAD(&hdrv->dyn_list);
2595 spin_lock_init(&hdrv->dyn_lock);
2596
2597 ret = driver_register(&hdrv->driver);
2598 if (ret)
2599 return ret;
2600
2601 ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2602 if (ret)
2603 driver_unregister(&hdrv->driver);
2604
2605 return ret;
2606 }
2607 EXPORT_SYMBOL_GPL(__hid_register_driver);
2608
2609 void hid_unregister_driver(struct hid_driver *hdrv)
2610 {
2611 driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2612 driver_unregister(&hdrv->driver);
2613 hid_free_dynids(hdrv);
2614 }
2615 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2616
2617 int hid_check_keys_pressed(struct hid_device *hid)
2618 {
2619 struct hid_input *hidinput;
2620 int i;
2621
2622 if (!(hid->claimed & HID_CLAIMED_INPUT))
2623 return 0;
2624
2625 list_for_each_entry(hidinput, &hid->inputs, list) {
2626 for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2627 if (hidinput->input->key[i])
2628 return 1;
2629 }
2630
2631 return 0;
2632 }
2633
2634 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2635
2636 static int __init hid_init(void)
2637 {
2638 int ret;
2639
2640 if (hid_debug)
2641 pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2642 "debugfs is now used for inspecting the device (report descriptor, reports)\n");
2643
2644 ret = bus_register(&hid_bus_type);
2645 if (ret) {
2646 pr_err("can't register hid bus\n");
2647 goto err;
2648 }
2649
2650 ret = hidraw_init();
2651 if (ret)
2652 goto err_bus;
2653
2654 hid_debug_init();
2655
2656 return 0;
2657 err_bus:
2658 bus_unregister(&hid_bus_type);
2659 err:
2660 return ret;
2661 }
2662
2663 static void __exit hid_exit(void)
2664 {
2665 hid_debug_exit();
2666 hidraw_exit();
2667 bus_unregister(&hid_bus_type);
2668 }
2669
2670 module_init(hid_init);
2671 module_exit(hid_exit);
2672
2673 MODULE_AUTHOR("Andreas Gal");
2674 MODULE_AUTHOR("Vojtech Pavlik");
2675 MODULE_AUTHOR("Jiri Kosina");
2676 MODULE_LICENSE(DRIVER_LICENSE);
2677
Linux with added FPC-III support