xref: /openbmc/linux/drivers/hid/hid-core.c (revision bc5aa3a0)
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(ignore_special_drivers, "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 	__u32 count;
431 
432 	data = item_udata(item);
433 
434 	switch (item->tag) {
435 	case HID_LOCAL_ITEM_TAG_DELIMITER:
436 
437 		if (data) {
438 			/*
439 			 * We treat items before the first delimiter
440 			 * as global to all usage sets (branch 0).
441 			 * In the moment we process only these global
442 			 * items and the first delimiter set.
443 			 */
444 			if (parser->local.delimiter_depth != 0) {
445 				hid_err(parser->device, "nested delimiters\n");
446 				return -1;
447 			}
448 			parser->local.delimiter_depth++;
449 			parser->local.delimiter_branch++;
450 		} else {
451 			if (parser->local.delimiter_depth < 1) {
452 				hid_err(parser->device, "bogus close delimiter\n");
453 				return -1;
454 			}
455 			parser->local.delimiter_depth--;
456 		}
457 		return 0;
458 
459 	case HID_LOCAL_ITEM_TAG_USAGE:
460 
461 		if (parser->local.delimiter_branch > 1) {
462 			dbg_hid("alternative usage ignored\n");
463 			return 0;
464 		}
465 
466 		if (item->size <= 2)
467 			data = (parser->global.usage_page << 16) + data;
468 
469 		return hid_add_usage(parser, data);
470 
471 	case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
472 
473 		if (parser->local.delimiter_branch > 1) {
474 			dbg_hid("alternative usage ignored\n");
475 			return 0;
476 		}
477 
478 		if (item->size <= 2)
479 			data = (parser->global.usage_page << 16) + data;
480 
481 		parser->local.usage_minimum = data;
482 		return 0;
483 
484 	case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
485 
486 		if (parser->local.delimiter_branch > 1) {
487 			dbg_hid("alternative usage ignored\n");
488 			return 0;
489 		}
490 
491 		if (item->size <= 2)
492 			data = (parser->global.usage_page << 16) + data;
493 
494 		count = data - parser->local.usage_minimum;
495 		if (count + parser->local.usage_index >= HID_MAX_USAGES) {
496 			/*
497 			 * We do not warn if the name is not set, we are
498 			 * actually pre-scanning the device.
499 			 */
500 			if (dev_name(&parser->device->dev))
501 				hid_warn(parser->device,
502 					 "ignoring exceeding usage max\n");
503 			data = HID_MAX_USAGES - parser->local.usage_index +
504 				parser->local.usage_minimum - 1;
505 			if (data <= 0) {
506 				hid_err(parser->device,
507 					"no more usage index available\n");
508 				return -1;
509 			}
510 		}
511 
512 		for (n = parser->local.usage_minimum; n <= data; n++)
513 			if (hid_add_usage(parser, n)) {
514 				dbg_hid("hid_add_usage failed\n");
515 				return -1;
516 			}
517 		return 0;
518 
519 	default:
520 
521 		dbg_hid("unknown local item tag 0x%x\n", item->tag);
522 		return 0;
523 	}
524 	return 0;
525 }
526 
527 /*
528  * Process a main item.
529  */
530 
531 static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
532 {
533 	__u32 data;
534 	int ret;
535 
536 	data = item_udata(item);
537 
538 	switch (item->tag) {
539 	case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
540 		ret = open_collection(parser, data & 0xff);
541 		break;
542 	case HID_MAIN_ITEM_TAG_END_COLLECTION:
543 		ret = close_collection(parser);
544 		break;
545 	case HID_MAIN_ITEM_TAG_INPUT:
546 		ret = hid_add_field(parser, HID_INPUT_REPORT, data);
547 		break;
548 	case HID_MAIN_ITEM_TAG_OUTPUT:
549 		ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
550 		break;
551 	case HID_MAIN_ITEM_TAG_FEATURE:
552 		ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
553 		break;
554 	default:
555 		hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
556 		ret = 0;
557 	}
558 
559 	memset(&parser->local, 0, sizeof(parser->local));	/* Reset the local parser environment */
560 
561 	return ret;
562 }
563 
564 /*
565  * Process a reserved item.
566  */
567 
568 static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
569 {
570 	dbg_hid("reserved item type, tag 0x%x\n", item->tag);
571 	return 0;
572 }
573 
574 /*
575  * Free a report and all registered fields. The field->usage and
576  * field->value table's are allocated behind the field, so we need
577  * only to free(field) itself.
578  */
579 
580 static void hid_free_report(struct hid_report *report)
581 {
582 	unsigned n;
583 
584 	for (n = 0; n < report->maxfield; n++)
585 		kfree(report->field[n]);
586 	kfree(report);
587 }
588 
589 /*
590  * Close report. This function returns the device
591  * state to the point prior to hid_open_report().
592  */
593 static void hid_close_report(struct hid_device *device)
594 {
595 	unsigned i, j;
596 
597 	for (i = 0; i < HID_REPORT_TYPES; i++) {
598 		struct hid_report_enum *report_enum = device->report_enum + i;
599 
600 		for (j = 0; j < HID_MAX_IDS; j++) {
601 			struct hid_report *report = report_enum->report_id_hash[j];
602 			if (report)
603 				hid_free_report(report);
604 		}
605 		memset(report_enum, 0, sizeof(*report_enum));
606 		INIT_LIST_HEAD(&report_enum->report_list);
607 	}
608 
609 	kfree(device->rdesc);
610 	device->rdesc = NULL;
611 	device->rsize = 0;
612 
613 	kfree(device->collection);
614 	device->collection = NULL;
615 	device->collection_size = 0;
616 	device->maxcollection = 0;
617 	device->maxapplication = 0;
618 
619 	device->status &= ~HID_STAT_PARSED;
620 }
621 
622 /*
623  * Free a device structure, all reports, and all fields.
624  */
625 
626 static void hid_device_release(struct device *dev)
627 {
628 	struct hid_device *hid = to_hid_device(dev);
629 
630 	hid_close_report(hid);
631 	kfree(hid->dev_rdesc);
632 	kfree(hid);
633 }
634 
635 /*
636  * Fetch a report description item from the data stream. We support long
637  * items, though they are not used yet.
638  */
639 
640 static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
641 {
642 	u8 b;
643 
644 	if ((end - start) <= 0)
645 		return NULL;
646 
647 	b = *start++;
648 
649 	item->type = (b >> 2) & 3;
650 	item->tag  = (b >> 4) & 15;
651 
652 	if (item->tag == HID_ITEM_TAG_LONG) {
653 
654 		item->format = HID_ITEM_FORMAT_LONG;
655 
656 		if ((end - start) < 2)
657 			return NULL;
658 
659 		item->size = *start++;
660 		item->tag  = *start++;
661 
662 		if ((end - start) < item->size)
663 			return NULL;
664 
665 		item->data.longdata = start;
666 		start += item->size;
667 		return start;
668 	}
669 
670 	item->format = HID_ITEM_FORMAT_SHORT;
671 	item->size = b & 3;
672 
673 	switch (item->size) {
674 	case 0:
675 		return start;
676 
677 	case 1:
678 		if ((end - start) < 1)
679 			return NULL;
680 		item->data.u8 = *start++;
681 		return start;
682 
683 	case 2:
684 		if ((end - start) < 2)
685 			return NULL;
686 		item->data.u16 = get_unaligned_le16(start);
687 		start = (__u8 *)((__le16 *)start + 1);
688 		return start;
689 
690 	case 3:
691 		item->size++;
692 		if ((end - start) < 4)
693 			return NULL;
694 		item->data.u32 = get_unaligned_le32(start);
695 		start = (__u8 *)((__le32 *)start + 1);
696 		return start;
697 	}
698 
699 	return NULL;
700 }
701 
702 static void hid_scan_input_usage(struct hid_parser *parser, u32 usage)
703 {
704 	struct hid_device *hid = parser->device;
705 
706 	if (usage == HID_DG_CONTACTID)
707 		hid->group = HID_GROUP_MULTITOUCH;
708 }
709 
710 static void hid_scan_feature_usage(struct hid_parser *parser, u32 usage)
711 {
712 	if (usage == 0xff0000c5 && parser->global.report_count == 256 &&
713 	    parser->global.report_size == 8)
714 		parser->scan_flags |= HID_SCAN_FLAG_MT_WIN_8;
715 }
716 
717 static void hid_scan_collection(struct hid_parser *parser, unsigned type)
718 {
719 	struct hid_device *hid = parser->device;
720 	int i;
721 
722 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
723 	    type == HID_COLLECTION_PHYSICAL)
724 		hid->group = HID_GROUP_SENSOR_HUB;
725 
726 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
727 	    (hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3 ||
728 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2 ||
729 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP ||
730 	     hid->product == USB_DEVICE_ID_MS_TYPE_COVER_3 ||
731 	     hid->product == USB_DEVICE_ID_MS_POWER_COVER) &&
732 	    hid->group == HID_GROUP_MULTITOUCH)
733 		hid->group = HID_GROUP_GENERIC;
734 
735 	if ((parser->global.usage_page << 16) == HID_UP_GENDESK)
736 		for (i = 0; i < parser->local.usage_index; i++)
737 			if (parser->local.usage[i] == HID_GD_POINTER)
738 				parser->scan_flags |= HID_SCAN_FLAG_GD_POINTER;
739 
740 	if ((parser->global.usage_page << 16) >= HID_UP_MSVENDOR)
741 		parser->scan_flags |= HID_SCAN_FLAG_VENDOR_SPECIFIC;
742 }
743 
744 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
745 {
746 	__u32 data;
747 	int i;
748 
749 	data = item_udata(item);
750 
751 	switch (item->tag) {
752 	case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
753 		hid_scan_collection(parser, data & 0xff);
754 		break;
755 	case HID_MAIN_ITEM_TAG_END_COLLECTION:
756 		break;
757 	case HID_MAIN_ITEM_TAG_INPUT:
758 		/* ignore constant inputs, they will be ignored by hid-input */
759 		if (data & HID_MAIN_ITEM_CONSTANT)
760 			break;
761 		for (i = 0; i < parser->local.usage_index; i++)
762 			hid_scan_input_usage(parser, parser->local.usage[i]);
763 		break;
764 	case HID_MAIN_ITEM_TAG_OUTPUT:
765 		break;
766 	case HID_MAIN_ITEM_TAG_FEATURE:
767 		for (i = 0; i < parser->local.usage_index; i++)
768 			hid_scan_feature_usage(parser, parser->local.usage[i]);
769 		break;
770 	}
771 
772 	/* Reset the local parser environment */
773 	memset(&parser->local, 0, sizeof(parser->local));
774 
775 	return 0;
776 }
777 
778 /*
779  * Scan a report descriptor before the device is added to the bus.
780  * Sets device groups and other properties that determine what driver
781  * to load.
782  */
783 static int hid_scan_report(struct hid_device *hid)
784 {
785 	struct hid_parser *parser;
786 	struct hid_item item;
787 	__u8 *start = hid->dev_rdesc;
788 	__u8 *end = start + hid->dev_rsize;
789 	static int (*dispatch_type[])(struct hid_parser *parser,
790 				      struct hid_item *item) = {
791 		hid_scan_main,
792 		hid_parser_global,
793 		hid_parser_local,
794 		hid_parser_reserved
795 	};
796 
797 	parser = vzalloc(sizeof(struct hid_parser));
798 	if (!parser)
799 		return -ENOMEM;
800 
801 	parser->device = hid;
802 	hid->group = HID_GROUP_GENERIC;
803 
804 	/*
805 	 * The parsing is simpler than the one in hid_open_report() as we should
806 	 * be robust against hid errors. Those errors will be raised by
807 	 * hid_open_report() anyway.
808 	 */
809 	while ((start = fetch_item(start, end, &item)) != NULL)
810 		dispatch_type[item.type](parser, &item);
811 
812 	/*
813 	 * Handle special flags set during scanning.
814 	 */
815 	if ((parser->scan_flags & HID_SCAN_FLAG_MT_WIN_8) &&
816 	    (hid->group == HID_GROUP_MULTITOUCH))
817 		hid->group = HID_GROUP_MULTITOUCH_WIN_8;
818 
819 	/*
820 	 * Vendor specific handlings
821 	 */
822 	switch (hid->vendor) {
823 	case USB_VENDOR_ID_WACOM:
824 		hid->group = HID_GROUP_WACOM;
825 		break;
826 	case USB_VENDOR_ID_SYNAPTICS:
827 		if (hid->group == HID_GROUP_GENERIC)
828 			if ((parser->scan_flags & HID_SCAN_FLAG_VENDOR_SPECIFIC)
829 			    && (parser->scan_flags & HID_SCAN_FLAG_GD_POINTER))
830 				/*
831 				 * hid-rmi should take care of them,
832 				 * not hid-generic
833 				 */
834 				hid->group = HID_GROUP_RMI;
835 		break;
836 	}
837 
838 	vfree(parser);
839 	return 0;
840 }
841 
842 /**
843  * hid_parse_report - parse device report
844  *
845  * @device: hid device
846  * @start: report start
847  * @size: report size
848  *
849  * Allocate the device report as read by the bus driver. This function should
850  * only be called from parse() in ll drivers.
851  */
852 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
853 {
854 	hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
855 	if (!hid->dev_rdesc)
856 		return -ENOMEM;
857 	hid->dev_rsize = size;
858 	return 0;
859 }
860 EXPORT_SYMBOL_GPL(hid_parse_report);
861 
862 static const char * const hid_report_names[] = {
863 	"HID_INPUT_REPORT",
864 	"HID_OUTPUT_REPORT",
865 	"HID_FEATURE_REPORT",
866 };
867 /**
868  * hid_validate_values - validate existing device report's value indexes
869  *
870  * @device: hid device
871  * @type: which report type to examine
872  * @id: which report ID to examine (0 for first)
873  * @field_index: which report field to examine
874  * @report_counts: expected number of values
875  *
876  * Validate the number of values in a given field of a given report, after
877  * parsing.
878  */
879 struct hid_report *hid_validate_values(struct hid_device *hid,
880 				       unsigned int type, unsigned int id,
881 				       unsigned int field_index,
882 				       unsigned int report_counts)
883 {
884 	struct hid_report *report;
885 
886 	if (type > HID_FEATURE_REPORT) {
887 		hid_err(hid, "invalid HID report type %u\n", type);
888 		return NULL;
889 	}
890 
891 	if (id >= HID_MAX_IDS) {
892 		hid_err(hid, "invalid HID report id %u\n", id);
893 		return NULL;
894 	}
895 
896 	/*
897 	 * Explicitly not using hid_get_report() here since it depends on
898 	 * ->numbered being checked, which may not always be the case when
899 	 * drivers go to access report values.
900 	 */
901 	if (id == 0) {
902 		/*
903 		 * Validating on id 0 means we should examine the first
904 		 * report in the list.
905 		 */
906 		report = list_entry(
907 				hid->report_enum[type].report_list.next,
908 				struct hid_report, list);
909 	} else {
910 		report = hid->report_enum[type].report_id_hash[id];
911 	}
912 	if (!report) {
913 		hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
914 		return NULL;
915 	}
916 	if (report->maxfield <= field_index) {
917 		hid_err(hid, "not enough fields in %s %u\n",
918 			hid_report_names[type], id);
919 		return NULL;
920 	}
921 	if (report->field[field_index]->report_count < report_counts) {
922 		hid_err(hid, "not enough values in %s %u field %u\n",
923 			hid_report_names[type], id, field_index);
924 		return NULL;
925 	}
926 	return report;
927 }
928 EXPORT_SYMBOL_GPL(hid_validate_values);
929 
930 /**
931  * hid_open_report - open a driver-specific device report
932  *
933  * @device: hid device
934  *
935  * Parse a report description into a hid_device structure. Reports are
936  * enumerated, fields are attached to these reports.
937  * 0 returned on success, otherwise nonzero error value.
938  *
939  * This function (or the equivalent hid_parse() macro) should only be
940  * called from probe() in drivers, before starting the device.
941  */
942 int hid_open_report(struct hid_device *device)
943 {
944 	struct hid_parser *parser;
945 	struct hid_item item;
946 	unsigned int size;
947 	__u8 *start;
948 	__u8 *buf;
949 	__u8 *end;
950 	int ret;
951 	static int (*dispatch_type[])(struct hid_parser *parser,
952 				      struct hid_item *item) = {
953 		hid_parser_main,
954 		hid_parser_global,
955 		hid_parser_local,
956 		hid_parser_reserved
957 	};
958 
959 	if (WARN_ON(device->status & HID_STAT_PARSED))
960 		return -EBUSY;
961 
962 	start = device->dev_rdesc;
963 	if (WARN_ON(!start))
964 		return -ENODEV;
965 	size = device->dev_rsize;
966 
967 	buf = kmemdup(start, size, GFP_KERNEL);
968 	if (buf == NULL)
969 		return -ENOMEM;
970 
971 	if (device->driver->report_fixup)
972 		start = device->driver->report_fixup(device, buf, &size);
973 	else
974 		start = buf;
975 
976 	start = kmemdup(start, size, GFP_KERNEL);
977 	kfree(buf);
978 	if (start == NULL)
979 		return -ENOMEM;
980 
981 	device->rdesc = start;
982 	device->rsize = size;
983 
984 	parser = vzalloc(sizeof(struct hid_parser));
985 	if (!parser) {
986 		ret = -ENOMEM;
987 		goto err;
988 	}
989 
990 	parser->device = device;
991 
992 	end = start + size;
993 
994 	device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
995 				     sizeof(struct hid_collection), GFP_KERNEL);
996 	if (!device->collection) {
997 		ret = -ENOMEM;
998 		goto err;
999 	}
1000 	device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;
1001 
1002 	ret = -EINVAL;
1003 	while ((start = fetch_item(start, end, &item)) != NULL) {
1004 
1005 		if (item.format != HID_ITEM_FORMAT_SHORT) {
1006 			hid_err(device, "unexpected long global item\n");
1007 			goto err;
1008 		}
1009 
1010 		if (dispatch_type[item.type](parser, &item)) {
1011 			hid_err(device, "item %u %u %u %u parsing failed\n",
1012 				item.format, (unsigned)item.size,
1013 				(unsigned)item.type, (unsigned)item.tag);
1014 			goto err;
1015 		}
1016 
1017 		if (start == end) {
1018 			if (parser->collection_stack_ptr) {
1019 				hid_err(device, "unbalanced collection at end of report description\n");
1020 				goto err;
1021 			}
1022 			if (parser->local.delimiter_depth) {
1023 				hid_err(device, "unbalanced delimiter at end of report description\n");
1024 				goto err;
1025 			}
1026 			vfree(parser);
1027 			device->status |= HID_STAT_PARSED;
1028 			return 0;
1029 		}
1030 	}
1031 
1032 	hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
1033 err:
1034 	vfree(parser);
1035 	hid_close_report(device);
1036 	return ret;
1037 }
1038 EXPORT_SYMBOL_GPL(hid_open_report);
1039 
1040 /*
1041  * Convert a signed n-bit integer to signed 32-bit integer. Common
1042  * cases are done through the compiler, the screwed things has to be
1043  * done by hand.
1044  */
1045 
1046 static s32 snto32(__u32 value, unsigned n)
1047 {
1048 	switch (n) {
1049 	case 8:  return ((__s8)value);
1050 	case 16: return ((__s16)value);
1051 	case 32: return ((__s32)value);
1052 	}
1053 	return value & (1 << (n - 1)) ? value | (-1 << n) : value;
1054 }
1055 
1056 s32 hid_snto32(__u32 value, unsigned n)
1057 {
1058 	return snto32(value, n);
1059 }
1060 EXPORT_SYMBOL_GPL(hid_snto32);
1061 
1062 /*
1063  * Convert a signed 32-bit integer to a signed n-bit integer.
1064  */
1065 
1066 static u32 s32ton(__s32 value, unsigned n)
1067 {
1068 	s32 a = value >> (n - 1);
1069 	if (a && a != -1)
1070 		return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
1071 	return value & ((1 << n) - 1);
1072 }
1073 
1074 /*
1075  * Extract/implement a data field from/to a little endian report (bit array).
1076  *
1077  * Code sort-of follows HID spec:
1078  *     http://www.usb.org/developers/hidpage/HID1_11.pdf
1079  *
1080  * While the USB HID spec allows unlimited length bit fields in "report
1081  * descriptors", most devices never use more than 16 bits.
1082  * One model of UPS is claimed to report "LINEV" as a 32-bit field.
1083  * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
1084  */
1085 
1086 static u32 __extract(u8 *report, unsigned offset, int n)
1087 {
1088 	unsigned int idx = offset / 8;
1089 	unsigned int bit_nr = 0;
1090 	unsigned int bit_shift = offset % 8;
1091 	int bits_to_copy = 8 - bit_shift;
1092 	u32 value = 0;
1093 	u32 mask = n < 32 ? (1U << n) - 1 : ~0U;
1094 
1095 	while (n > 0) {
1096 		value |= ((u32)report[idx] >> bit_shift) << bit_nr;
1097 		n -= bits_to_copy;
1098 		bit_nr += bits_to_copy;
1099 		bits_to_copy = 8;
1100 		bit_shift = 0;
1101 		idx++;
1102 	}
1103 
1104 	return value & mask;
1105 }
1106 
1107 u32 hid_field_extract(const struct hid_device *hid, u8 *report,
1108 			unsigned offset, unsigned n)
1109 {
1110 	if (n > 32) {
1111 		hid_warn(hid, "hid_field_extract() called with n (%d) > 32! (%s)\n",
1112 			 n, current->comm);
1113 		n = 32;
1114 	}
1115 
1116 	return __extract(report, offset, n);
1117 }
1118 EXPORT_SYMBOL_GPL(hid_field_extract);
1119 
1120 /*
1121  * "implement" : set bits in a little endian bit stream.
1122  * Same concepts as "extract" (see comments above).
1123  * The data mangled in the bit stream remains in little endian
1124  * order the whole time. It make more sense to talk about
1125  * endianness of register values by considering a register
1126  * a "cached" copy of the little endian bit stream.
1127  */
1128 
1129 static void __implement(u8 *report, unsigned offset, int n, u32 value)
1130 {
1131 	unsigned int idx = offset / 8;
1132 	unsigned int bit_shift = offset % 8;
1133 	int bits_to_set = 8 - bit_shift;
1134 
1135 	while (n - bits_to_set >= 0) {
1136 		report[idx] &= ~(0xff << bit_shift);
1137 		report[idx] |= value << bit_shift;
1138 		value >>= bits_to_set;
1139 		n -= bits_to_set;
1140 		bits_to_set = 8;
1141 		bit_shift = 0;
1142 		idx++;
1143 	}
1144 
1145 	/* last nibble */
1146 	if (n) {
1147 		u8 bit_mask = ((1U << n) - 1);
1148 		report[idx] &= ~(bit_mask << bit_shift);
1149 		report[idx] |= value << bit_shift;
1150 	}
1151 }
1152 
1153 static void implement(const struct hid_device *hid, u8 *report,
1154 		      unsigned offset, unsigned n, u32 value)
1155 {
1156 	if (unlikely(n > 32)) {
1157 		hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
1158 			 __func__, n, current->comm);
1159 		n = 32;
1160 	} else if (n < 32) {
1161 		u32 m = (1U << n) - 1;
1162 
1163 		if (unlikely(value > m)) {
1164 			hid_warn(hid,
1165 				 "%s() called with too large value %d (n: %d)! (%s)\n",
1166 				 __func__, value, n, current->comm);
1167 			WARN_ON(1);
1168 			value &= m;
1169 		}
1170 	}
1171 
1172 	__implement(report, offset, n, value);
1173 }
1174 
1175 /*
1176  * Search an array for a value.
1177  */
1178 
1179 static int search(__s32 *array, __s32 value, unsigned n)
1180 {
1181 	while (n--) {
1182 		if (*array++ == value)
1183 			return 0;
1184 	}
1185 	return -1;
1186 }
1187 
1188 /**
1189  * hid_match_report - check if driver's raw_event should be called
1190  *
1191  * @hid: hid device
1192  * @report_type: type to match against
1193  *
1194  * compare hid->driver->report_table->report_type to report->type
1195  */
1196 static int hid_match_report(struct hid_device *hid, struct hid_report *report)
1197 {
1198 	const struct hid_report_id *id = hid->driver->report_table;
1199 
1200 	if (!id) /* NULL means all */
1201 		return 1;
1202 
1203 	for (; id->report_type != HID_TERMINATOR; id++)
1204 		if (id->report_type == HID_ANY_ID ||
1205 				id->report_type == report->type)
1206 			return 1;
1207 	return 0;
1208 }
1209 
1210 /**
1211  * hid_match_usage - check if driver's event should be called
1212  *
1213  * @hid: hid device
1214  * @usage: usage to match against
1215  *
1216  * compare hid->driver->usage_table->usage_{type,code} to
1217  * usage->usage_{type,code}
1218  */
1219 static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
1220 {
1221 	const struct hid_usage_id *id = hid->driver->usage_table;
1222 
1223 	if (!id) /* NULL means all */
1224 		return 1;
1225 
1226 	for (; id->usage_type != HID_ANY_ID - 1; id++)
1227 		if ((id->usage_hid == HID_ANY_ID ||
1228 				id->usage_hid == usage->hid) &&
1229 				(id->usage_type == HID_ANY_ID ||
1230 				id->usage_type == usage->type) &&
1231 				(id->usage_code == HID_ANY_ID ||
1232 				 id->usage_code == usage->code))
1233 			return 1;
1234 	return 0;
1235 }
1236 
1237 static void hid_process_event(struct hid_device *hid, struct hid_field *field,
1238 		struct hid_usage *usage, __s32 value, int interrupt)
1239 {
1240 	struct hid_driver *hdrv = hid->driver;
1241 	int ret;
1242 
1243 	if (!list_empty(&hid->debug_list))
1244 		hid_dump_input(hid, usage, value);
1245 
1246 	if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
1247 		ret = hdrv->event(hid, field, usage, value);
1248 		if (ret != 0) {
1249 			if (ret < 0)
1250 				hid_err(hid, "%s's event failed with %d\n",
1251 						hdrv->name, ret);
1252 			return;
1253 		}
1254 	}
1255 
1256 	if (hid->claimed & HID_CLAIMED_INPUT)
1257 		hidinput_hid_event(hid, field, usage, value);
1258 	if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
1259 		hid->hiddev_hid_event(hid, field, usage, value);
1260 }
1261 
1262 /*
1263  * Analyse a received field, and fetch the data from it. The field
1264  * content is stored for next report processing (we do differential
1265  * reporting to the layer).
1266  */
1267 
1268 static void hid_input_field(struct hid_device *hid, struct hid_field *field,
1269 			    __u8 *data, int interrupt)
1270 {
1271 	unsigned n;
1272 	unsigned count = field->report_count;
1273 	unsigned offset = field->report_offset;
1274 	unsigned size = field->report_size;
1275 	__s32 min = field->logical_minimum;
1276 	__s32 max = field->logical_maximum;
1277 	__s32 *value;
1278 
1279 	value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
1280 	if (!value)
1281 		return;
1282 
1283 	for (n = 0; n < count; n++) {
1284 
1285 		value[n] = min < 0 ?
1286 			snto32(hid_field_extract(hid, data, offset + n * size,
1287 			       size), size) :
1288 			hid_field_extract(hid, data, offset + n * size, size);
1289 
1290 		/* Ignore report if ErrorRollOver */
1291 		if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
1292 		    value[n] >= min && value[n] <= max &&
1293 		    value[n] - min < field->maxusage &&
1294 		    field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
1295 			goto exit;
1296 	}
1297 
1298 	for (n = 0; n < count; n++) {
1299 
1300 		if (HID_MAIN_ITEM_VARIABLE & field->flags) {
1301 			hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
1302 			continue;
1303 		}
1304 
1305 		if (field->value[n] >= min && field->value[n] <= max
1306 			&& field->value[n] - min < field->maxusage
1307 			&& field->usage[field->value[n] - min].hid
1308 			&& search(value, field->value[n], count))
1309 				hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);
1310 
1311 		if (value[n] >= min && value[n] <= max
1312 			&& value[n] - min < field->maxusage
1313 			&& field->usage[value[n] - min].hid
1314 			&& search(field->value, value[n], count))
1315 				hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
1316 	}
1317 
1318 	memcpy(field->value, value, count * sizeof(__s32));
1319 exit:
1320 	kfree(value);
1321 }
1322 
1323 /*
1324  * Output the field into the report.
1325  */
1326 
1327 static void hid_output_field(const struct hid_device *hid,
1328 			     struct hid_field *field, __u8 *data)
1329 {
1330 	unsigned count = field->report_count;
1331 	unsigned offset = field->report_offset;
1332 	unsigned size = field->report_size;
1333 	unsigned n;
1334 
1335 	for (n = 0; n < count; n++) {
1336 		if (field->logical_minimum < 0)	/* signed values */
1337 			implement(hid, data, offset + n * size, size,
1338 				  s32ton(field->value[n], size));
1339 		else				/* unsigned values */
1340 			implement(hid, data, offset + n * size, size,
1341 				  field->value[n]);
1342 	}
1343 }
1344 
1345 /*
1346  * Create a report. 'data' has to be allocated using
1347  * hid_alloc_report_buf() so that it has proper size.
1348  */
1349 
1350 void hid_output_report(struct hid_report *report, __u8 *data)
1351 {
1352 	unsigned n;
1353 
1354 	if (report->id > 0)
1355 		*data++ = report->id;
1356 
1357 	memset(data, 0, ((report->size - 1) >> 3) + 1);
1358 	for (n = 0; n < report->maxfield; n++)
1359 		hid_output_field(report->device, report->field[n], data);
1360 }
1361 EXPORT_SYMBOL_GPL(hid_output_report);
1362 
1363 /*
1364  * Allocator for buffer that is going to be passed to hid_output_report()
1365  */
1366 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags)
1367 {
1368 	/*
1369 	 * 7 extra bytes are necessary to achieve proper functionality
1370 	 * of implement() working on 8 byte chunks
1371 	 */
1372 
1373 	int len = hid_report_len(report) + 7;
1374 
1375 	return kmalloc(len, flags);
1376 }
1377 EXPORT_SYMBOL_GPL(hid_alloc_report_buf);
1378 
1379 /*
1380  * Set a field value. The report this field belongs to has to be
1381  * created and transferred to the device, to set this value in the
1382  * device.
1383  */
1384 
1385 int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
1386 {
1387 	unsigned size;
1388 
1389 	if (!field)
1390 		return -1;
1391 
1392 	size = field->report_size;
1393 
1394 	hid_dump_input(field->report->device, field->usage + offset, value);
1395 
1396 	if (offset >= field->report_count) {
1397 		hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
1398 				offset, field->report_count);
1399 		return -1;
1400 	}
1401 	if (field->logical_minimum < 0) {
1402 		if (value != snto32(s32ton(value, size), size)) {
1403 			hid_err(field->report->device, "value %d is out of range\n", value);
1404 			return -1;
1405 		}
1406 	}
1407 	field->value[offset] = value;
1408 	return 0;
1409 }
1410 EXPORT_SYMBOL_GPL(hid_set_field);
1411 
1412 static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
1413 		const u8 *data)
1414 {
1415 	struct hid_report *report;
1416 	unsigned int n = 0;	/* Normally report number is 0 */
1417 
1418 	/* Device uses numbered reports, data[0] is report number */
1419 	if (report_enum->numbered)
1420 		n = *data;
1421 
1422 	report = report_enum->report_id_hash[n];
1423 	if (report == NULL)
1424 		dbg_hid("undefined report_id %u received\n", n);
1425 
1426 	return report;
1427 }
1428 
1429 /*
1430  * Implement a generic .request() callback, using .raw_request()
1431  * DO NOT USE in hid drivers directly, but through hid_hw_request instead.
1432  */
1433 void __hid_request(struct hid_device *hid, struct hid_report *report,
1434 		int reqtype)
1435 {
1436 	char *buf;
1437 	int ret;
1438 	int len;
1439 
1440 	buf = hid_alloc_report_buf(report, GFP_KERNEL);
1441 	if (!buf)
1442 		return;
1443 
1444 	len = hid_report_len(report);
1445 
1446 	if (reqtype == HID_REQ_SET_REPORT)
1447 		hid_output_report(report, buf);
1448 
1449 	ret = hid->ll_driver->raw_request(hid, report->id, buf, len,
1450 					  report->type, reqtype);
1451 	if (ret < 0) {
1452 		dbg_hid("unable to complete request: %d\n", ret);
1453 		goto out;
1454 	}
1455 
1456 	if (reqtype == HID_REQ_GET_REPORT)
1457 		hid_input_report(hid, report->type, buf, ret, 0);
1458 
1459 out:
1460 	kfree(buf);
1461 }
1462 EXPORT_SYMBOL_GPL(__hid_request);
1463 
1464 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
1465 		int interrupt)
1466 {
1467 	struct hid_report_enum *report_enum = hid->report_enum + type;
1468 	struct hid_report *report;
1469 	struct hid_driver *hdrv;
1470 	unsigned int a;
1471 	int rsize, csize = size;
1472 	u8 *cdata = data;
1473 	int ret = 0;
1474 
1475 	report = hid_get_report(report_enum, data);
1476 	if (!report)
1477 		goto out;
1478 
1479 	if (report_enum->numbered) {
1480 		cdata++;
1481 		csize--;
1482 	}
1483 
1484 	rsize = ((report->size - 1) >> 3) + 1;
1485 
1486 	if (rsize > HID_MAX_BUFFER_SIZE)
1487 		rsize = HID_MAX_BUFFER_SIZE;
1488 
1489 	if (csize < rsize) {
1490 		dbg_hid("report %d is too short, (%d < %d)\n", report->id,
1491 				csize, rsize);
1492 		memset(cdata + csize, 0, rsize - csize);
1493 	}
1494 
1495 	if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
1496 		hid->hiddev_report_event(hid, report);
1497 	if (hid->claimed & HID_CLAIMED_HIDRAW) {
1498 		ret = hidraw_report_event(hid, data, size);
1499 		if (ret)
1500 			goto out;
1501 	}
1502 
1503 	if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
1504 		for (a = 0; a < report->maxfield; a++)
1505 			hid_input_field(hid, report->field[a], cdata, interrupt);
1506 		hdrv = hid->driver;
1507 		if (hdrv && hdrv->report)
1508 			hdrv->report(hid, report);
1509 	}
1510 
1511 	if (hid->claimed & HID_CLAIMED_INPUT)
1512 		hidinput_report_event(hid, report);
1513 out:
1514 	return ret;
1515 }
1516 EXPORT_SYMBOL_GPL(hid_report_raw_event);
1517 
1518 /**
1519  * hid_input_report - report data from lower layer (usb, bt...)
1520  *
1521  * @hid: hid device
1522  * @type: HID report type (HID_*_REPORT)
1523  * @data: report contents
1524  * @size: size of data parameter
1525  * @interrupt: distinguish between interrupt and control transfers
1526  *
1527  * This is data entry for lower layers.
1528  */
1529 int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
1530 {
1531 	struct hid_report_enum *report_enum;
1532 	struct hid_driver *hdrv;
1533 	struct hid_report *report;
1534 	int ret = 0;
1535 
1536 	if (!hid)
1537 		return -ENODEV;
1538 
1539 	if (down_trylock(&hid->driver_input_lock))
1540 		return -EBUSY;
1541 
1542 	if (!hid->driver) {
1543 		ret = -ENODEV;
1544 		goto unlock;
1545 	}
1546 	report_enum = hid->report_enum + type;
1547 	hdrv = hid->driver;
1548 
1549 	if (!size) {
1550 		dbg_hid("empty report\n");
1551 		ret = -1;
1552 		goto unlock;
1553 	}
1554 
1555 	/* Avoid unnecessary overhead if debugfs is disabled */
1556 	if (!list_empty(&hid->debug_list))
1557 		hid_dump_report(hid, type, data, size);
1558 
1559 	report = hid_get_report(report_enum, data);
1560 
1561 	if (!report) {
1562 		ret = -1;
1563 		goto unlock;
1564 	}
1565 
1566 	if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
1567 		ret = hdrv->raw_event(hid, report, data, size);
1568 		if (ret < 0)
1569 			goto unlock;
1570 	}
1571 
1572 	ret = hid_report_raw_event(hid, type, data, size, interrupt);
1573 
1574 unlock:
1575 	up(&hid->driver_input_lock);
1576 	return ret;
1577 }
1578 EXPORT_SYMBOL_GPL(hid_input_report);
1579 
1580 static bool hid_match_one_id(struct hid_device *hdev,
1581 		const struct hid_device_id *id)
1582 {
1583 	return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
1584 		(id->group == HID_GROUP_ANY || id->group == hdev->group) &&
1585 		(id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
1586 		(id->product == HID_ANY_ID || id->product == hdev->product);
1587 }
1588 
1589 const struct hid_device_id *hid_match_id(struct hid_device *hdev,
1590 		const struct hid_device_id *id)
1591 {
1592 	for (; id->bus; id++)
1593 		if (hid_match_one_id(hdev, id))
1594 			return id;
1595 
1596 	return NULL;
1597 }
1598 
1599 static const struct hid_device_id hid_hiddev_list[] = {
1600 	{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
1601 	{ HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
1602 	{ }
1603 };
1604 
1605 static bool hid_hiddev(struct hid_device *hdev)
1606 {
1607 	return !!hid_match_id(hdev, hid_hiddev_list);
1608 }
1609 
1610 
1611 static ssize_t
1612 read_report_descriptor(struct file *filp, struct kobject *kobj,
1613 		struct bin_attribute *attr,
1614 		char *buf, loff_t off, size_t count)
1615 {
1616 	struct device *dev = kobj_to_dev(kobj);
1617 	struct hid_device *hdev = to_hid_device(dev);
1618 
1619 	if (off >= hdev->rsize)
1620 		return 0;
1621 
1622 	if (off + count > hdev->rsize)
1623 		count = hdev->rsize - off;
1624 
1625 	memcpy(buf, hdev->rdesc + off, count);
1626 
1627 	return count;
1628 }
1629 
1630 static ssize_t
1631 show_country(struct device *dev, struct device_attribute *attr,
1632 		char *buf)
1633 {
1634 	struct hid_device *hdev = to_hid_device(dev);
1635 
1636 	return sprintf(buf, "%02x\n", hdev->country & 0xff);
1637 }
1638 
1639 static struct bin_attribute dev_bin_attr_report_desc = {
1640 	.attr = { .name = "report_descriptor", .mode = 0444 },
1641 	.read = read_report_descriptor,
1642 	.size = HID_MAX_DESCRIPTOR_SIZE,
1643 };
1644 
1645 static struct device_attribute dev_attr_country = {
1646 	.attr = { .name = "country", .mode = 0444 },
1647 	.show = show_country,
1648 };
1649 
1650 int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
1651 {
1652 	static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
1653 		"Joystick", "Gamepad", "Keyboard", "Keypad",
1654 		"Multi-Axis Controller"
1655 	};
1656 	const char *type, *bus;
1657 	char buf[64] = "";
1658 	unsigned int i;
1659 	int len;
1660 	int ret;
1661 
1662 	if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
1663 		connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
1664 	if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
1665 		connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
1666 	if (hdev->bus != BUS_USB)
1667 		connect_mask &= ~HID_CONNECT_HIDDEV;
1668 	if (hid_hiddev(hdev))
1669 		connect_mask |= HID_CONNECT_HIDDEV_FORCE;
1670 
1671 	if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
1672 				connect_mask & HID_CONNECT_HIDINPUT_FORCE))
1673 		hdev->claimed |= HID_CLAIMED_INPUT;
1674 
1675 	if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
1676 			!hdev->hiddev_connect(hdev,
1677 				connect_mask & HID_CONNECT_HIDDEV_FORCE))
1678 		hdev->claimed |= HID_CLAIMED_HIDDEV;
1679 	if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
1680 		hdev->claimed |= HID_CLAIMED_HIDRAW;
1681 
1682 	if (connect_mask & HID_CONNECT_DRIVER)
1683 		hdev->claimed |= HID_CLAIMED_DRIVER;
1684 
1685 	/* Drivers with the ->raw_event callback set are not required to connect
1686 	 * to any other listener. */
1687 	if (!hdev->claimed && !hdev->driver->raw_event) {
1688 		hid_err(hdev, "device has no listeners, quitting\n");
1689 		return -ENODEV;
1690 	}
1691 
1692 	if ((hdev->claimed & HID_CLAIMED_INPUT) &&
1693 			(connect_mask & HID_CONNECT_FF) && hdev->ff_init)
1694 		hdev->ff_init(hdev);
1695 
1696 	len = 0;
1697 	if (hdev->claimed & HID_CLAIMED_INPUT)
1698 		len += sprintf(buf + len, "input");
1699 	if (hdev->claimed & HID_CLAIMED_HIDDEV)
1700 		len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
1701 				hdev->minor);
1702 	if (hdev->claimed & HID_CLAIMED_HIDRAW)
1703 		len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
1704 				((struct hidraw *)hdev->hidraw)->minor);
1705 
1706 	type = "Device";
1707 	for (i = 0; i < hdev->maxcollection; i++) {
1708 		struct hid_collection *col = &hdev->collection[i];
1709 		if (col->type == HID_COLLECTION_APPLICATION &&
1710 		   (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
1711 		   (col->usage & 0xffff) < ARRAY_SIZE(types)) {
1712 			type = types[col->usage & 0xffff];
1713 			break;
1714 		}
1715 	}
1716 
1717 	switch (hdev->bus) {
1718 	case BUS_USB:
1719 		bus = "USB";
1720 		break;
1721 	case BUS_BLUETOOTH:
1722 		bus = "BLUETOOTH";
1723 		break;
1724 	case BUS_I2C:
1725 		bus = "I2C";
1726 		break;
1727 	default:
1728 		bus = "<UNKNOWN>";
1729 	}
1730 
1731 	ret = device_create_file(&hdev->dev, &dev_attr_country);
1732 	if (ret)
1733 		hid_warn(hdev,
1734 			 "can't create sysfs country code attribute err: %d\n", ret);
1735 
1736 	hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
1737 		 buf, bus, hdev->version >> 8, hdev->version & 0xff,
1738 		 type, hdev->name, hdev->phys);
1739 
1740 	return 0;
1741 }
1742 EXPORT_SYMBOL_GPL(hid_connect);
1743 
1744 void hid_disconnect(struct hid_device *hdev)
1745 {
1746 	device_remove_file(&hdev->dev, &dev_attr_country);
1747 	if (hdev->claimed & HID_CLAIMED_INPUT)
1748 		hidinput_disconnect(hdev);
1749 	if (hdev->claimed & HID_CLAIMED_HIDDEV)
1750 		hdev->hiddev_disconnect(hdev);
1751 	if (hdev->claimed & HID_CLAIMED_HIDRAW)
1752 		hidraw_disconnect(hdev);
1753 	hdev->claimed = 0;
1754 }
1755 EXPORT_SYMBOL_GPL(hid_disconnect);
1756 
1757 /*
1758  * A list of devices for which there is a specialized driver on HID bus.
1759  *
1760  * Please note that for multitouch devices (driven by hid-multitouch driver),
1761  * there is a proper autodetection and autoloading in place (based on presence
1762  * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
1763  * as we are doing the right thing in hid_scan_usage().
1764  *
1765  * Autodetection for (USB) HID sensor hubs exists too. If a collection of type
1766  * physical is found inside a usage page of type sensor, hid-sensor-hub will be
1767  * used as a driver. See hid_scan_report().
1768  */
1769 static const struct hid_device_id hid_have_special_driver[] = {
1770 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
1771 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
1772 	{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
1773 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
1774 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0xf705) },
1775 	{ HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_ALPS_JP, HID_DEVICE_ID_ALPS_U1_DUAL) },
1776 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
1777 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
1778 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
1779 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
1780 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
1781 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
1782 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
1783 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
1784 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
1785 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
1786 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
1787 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
1788 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
1789 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
1790 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
1791 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
1792 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
1793 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
1794 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
1795 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
1796 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
1797 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
1798 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
1799 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL) },
1800 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL2) },
1801 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL3) },
1802 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
1803 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL5) },
1804 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
1805 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
1806 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
1807 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
1808 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
1809 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
1810 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
1811 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
1812 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
1813 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
1814 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
1815 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
1816 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
1817 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
1818 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
1819 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
1820 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
1821 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
1822 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
1823 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
1824 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
1825 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
1826 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
1827 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
1828 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
1829 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
1830 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
1831 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
1832 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
1833 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
1834 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
1835 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
1836 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
1837 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
1838 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
1839 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
1840 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
1841 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
1842 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
1843 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
1844 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
1845 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
1846 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI) },
1847 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO) },
1848 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS) },
1849 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
1850 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
1851 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
1852 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI) },
1853 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
1854 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_JIS) },
1855 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGIC_KEYBOARD_ANSI) },
1856 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
1857 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
1858 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_NOTEBOOK_KEYBOARD) },
1859 	{ HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
1860 	{ HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
1861 	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) },
1862 	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) },
1863 	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) },
1864 	{ HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) },
1865 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
1866 	{ HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
1867 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
1868 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
1869 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
1870 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
1871 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
1872 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
1873 	{ HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_ACER_SWITCH12) },
1874 	{ HID_USB_DEVICE(USB_VENDOR_ID_CORSAIR, USB_DEVICE_ID_CORSAIR_K90) },
1875 	{ HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
1876 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_CP2112) },
1877 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
1878 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
1879 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
1880 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
1881 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
1882 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELCOM, USB_DEVICE_ID_DELCOM_VISUAL_IND) },
1883 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
1884 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
1885 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_WN) },
1886 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, USB_DEVICE_ID_DREAM_CHEEKY_FA) },
1887 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
1888 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0009) },
1889 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, 0x0030) },
1890 	{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
1891 	{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
1892 	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
1893 	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
1894 	{ HID_USB_DEVICE(USB_VENDOR_ID_GEMBIRD, USB_DEVICE_ID_GEMBIRD_JPD_DUALFORCE2) },
1895 	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
1896 	{ HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
1897 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
1898 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
1899 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
1900 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
1901 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
1902 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A04A) },
1903 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A067) },
1904 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A070) },
1905 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A072) },
1906 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A081) },
1907 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_MOUSE_A0C2) },
1908 	{ HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
1909 	{ HID_USB_DEVICE(USB_VENDOR_ID_JESS2, USB_DEVICE_ID_JESS2_COLOR_RUMBLE_PAD) },
1910 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ION, USB_DEVICE_ID_ICADE) },
1911 	{ HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
1912 	{ HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
1913 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GILA_GAMING_MOUSE) },
1914 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_MANTICORE) },
1915 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_GENIUS_GX_IMPERATOR) },
1916 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
1917 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
1918 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
1919 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X_2) },
1920 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
1921 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_M912) },
1922 	{ HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
1923 	{ HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
1924 #if IS_ENABLED(CONFIG_HID_LENOVO)
1925 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
1926 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CUSBKBD) },
1927 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_CBTKBD) },
1928 	{ HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPPRODOCK) },
1929 #endif
1930 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
1931 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
1932 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
1933 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
1934 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
1935 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_T651) },
1936 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
1937 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
1938 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
1939 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
1940 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
1941 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
1942 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DUAL_ACTION) },
1943 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
1944 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
1945 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
1946 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
1947 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G29_WHEEL) },
1948 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G920_WHEEL) },
1949 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
1950 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
1951 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
1952 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
1953 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
1954 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
1955 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_VIBRATION_WHEEL) },
1956 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
1957 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
1958 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
1959 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
1960 #if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
1961 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
1962 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
1963 #endif
1964 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
1965 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
1966 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
1967 	{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
1968 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
1969 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
1970 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_LUXAFOR) },
1971 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
1972 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD) },
1973 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
1974 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
1975 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP) },
1976 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K) },
1977 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
1978 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
1979 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
1980 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
1981 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
1982 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3) },
1983 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_2) },
1984 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_PRO_3_JP) },
1985 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3) },
1986 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K) },
1987 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600) },
1988 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1) },
1989 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER) },
1990 	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
1991 	{ HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL) },
1992 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
1993 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
1994 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
1995 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
1996 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
1997 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
1998 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
1999 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
2000 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
2001 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
2002 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
2003 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
2004 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
2005 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
2006 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
2007 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
2008 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
2009 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
2010 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
2011 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
2012 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
2013 	{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_6000) },
2014 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
2015 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLANTRONICS, HID_ANY_ID) },
2016 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
2017 	{ HID_USB_DEVICE(USB_VENDOR_ID_RISO_KAGAKU, USB_DEVICE_ID_RI_KA_WEBMAIL) },
2018 #if IS_ENABLED(CONFIG_HID_ROCCAT)
2019 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
2020 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
2021 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKUFX) },
2022 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
2023 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
2024 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE) },
2025 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPURE_OPTICAL) },
2026 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEXTD) },
2027 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
2028 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_LUA) },
2029 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
2030 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
2031 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK) },
2032 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_GLOW) },
2033 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_RYOS_MK_PRO) },
2034 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
2035 #endif
2036 #if IS_ENABLED(CONFIG_HID_SAITEK)
2037 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
2038 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7_OLD) },
2039 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_RAT7) },
2040 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_MMO7) },
2041 	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT5) },
2042 	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_RAT9) },
2043 #endif
2044 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
2045 	{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
2046 	{ HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
2047 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SMK, USB_DEVICE_ID_SMK_PS3_BDREMOTE) },
2048 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_BUZZ_CONTROLLER) },
2049 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_WIRELESS_BUZZ_CONTROLLER) },
2050 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
2051 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_MOTION_CONTROLLER) },
2052 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
2053 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
2054 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
2055 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
2056 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
2057 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
2058 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS4_CONTROLLER) },
2059 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
2060 	{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGP_MOUSE) },
2061 	{ HID_USB_DEVICE(USB_VENDOR_ID_SINO_LITE, USB_DEVICE_ID_SINO_LITE_CONTROLLER) },
2062 	{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
2063 	{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
2064 	{ HID_USB_DEVICE(USB_VENDOR_ID_THINGM, USB_DEVICE_ID_BLINK1) },
2065 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
2066 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
2067 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
2068 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
2069 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
2070 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
2071 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
2072 	{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
2073 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
2074 	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
2075 	{ HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_PRO) },
2076 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
2077 	{ HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
2078 	{ HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
2079 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
2080 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
2081 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
2082 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
2083 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
2084 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
2085 	{ HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
2086 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
2087 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
2088 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
2089 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
2090 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
2091 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
2092 	{ HID_USB_DEVICE(USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII) },
2093 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
2094 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
2095 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
2096 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
2097 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
2098 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
2099 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
2100 	{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
2101 	{ HID_USB_DEVICE(USB_VENDOR_ID_XIN_MO, USB_DEVICE_ID_XIN_MO_DUAL_ARCADE) },
2102 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
2103 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
2104 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },
2105 
2106 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
2107 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
2108 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE2) },
2109 	{ HID_USB_DEVICE(USB_VENDOR_ID_RAZER, USB_DEVICE_ID_RAZER_BLADE_14) },
2110 	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM6533) },
2111 	{ }
2112 };
2113 
2114 struct hid_dynid {
2115 	struct list_head list;
2116 	struct hid_device_id id;
2117 };
2118 
2119 /**
2120  * store_new_id - add a new HID device ID to this driver and re-probe devices
2121  * @driver: target device driver
2122  * @buf: buffer for scanning device ID data
2123  * @count: input size
2124  *
2125  * Adds a new dynamic hid device ID to this driver,
2126  * and causes the driver to probe for all devices again.
2127  */
2128 static ssize_t store_new_id(struct device_driver *drv, const char *buf,
2129 		size_t count)
2130 {
2131 	struct hid_driver *hdrv = to_hid_driver(drv);
2132 	struct hid_dynid *dynid;
2133 	__u32 bus, vendor, product;
2134 	unsigned long driver_data = 0;
2135 	int ret;
2136 
2137 	ret = sscanf(buf, "%x %x %x %lx",
2138 			&bus, &vendor, &product, &driver_data);
2139 	if (ret < 3)
2140 		return -EINVAL;
2141 
2142 	dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
2143 	if (!dynid)
2144 		return -ENOMEM;
2145 
2146 	dynid->id.bus = bus;
2147 	dynid->id.group = HID_GROUP_ANY;
2148 	dynid->id.vendor = vendor;
2149 	dynid->id.product = product;
2150 	dynid->id.driver_data = driver_data;
2151 
2152 	spin_lock(&hdrv->dyn_lock);
2153 	list_add_tail(&dynid->list, &hdrv->dyn_list);
2154 	spin_unlock(&hdrv->dyn_lock);
2155 
2156 	ret = driver_attach(&hdrv->driver);
2157 
2158 	return ret ? : count;
2159 }
2160 static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);
2161 
2162 static void hid_free_dynids(struct hid_driver *hdrv)
2163 {
2164 	struct hid_dynid *dynid, *n;
2165 
2166 	spin_lock(&hdrv->dyn_lock);
2167 	list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
2168 		list_del(&dynid->list);
2169 		kfree(dynid);
2170 	}
2171 	spin_unlock(&hdrv->dyn_lock);
2172 }
2173 
2174 static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
2175 		struct hid_driver *hdrv)
2176 {
2177 	struct hid_dynid *dynid;
2178 
2179 	spin_lock(&hdrv->dyn_lock);
2180 	list_for_each_entry(dynid, &hdrv->dyn_list, list) {
2181 		if (hid_match_one_id(hdev, &dynid->id)) {
2182 			spin_unlock(&hdrv->dyn_lock);
2183 			return &dynid->id;
2184 		}
2185 	}
2186 	spin_unlock(&hdrv->dyn_lock);
2187 
2188 	return hid_match_id(hdev, hdrv->id_table);
2189 }
2190 
2191 static int hid_bus_match(struct device *dev, struct device_driver *drv)
2192 {
2193 	struct hid_driver *hdrv = to_hid_driver(drv);
2194 	struct hid_device *hdev = to_hid_device(dev);
2195 
2196 	return hid_match_device(hdev, hdrv) != NULL;
2197 }
2198 
2199 static int hid_device_probe(struct device *dev)
2200 {
2201 	struct hid_driver *hdrv = to_hid_driver(dev->driver);
2202 	struct hid_device *hdev = to_hid_device(dev);
2203 	const struct hid_device_id *id;
2204 	int ret = 0;
2205 
2206 	if (down_interruptible(&hdev->driver_lock))
2207 		return -EINTR;
2208 	if (down_interruptible(&hdev->driver_input_lock)) {
2209 		ret = -EINTR;
2210 		goto unlock_driver_lock;
2211 	}
2212 	hdev->io_started = false;
2213 
2214 	if (!hdev->driver) {
2215 		id = hid_match_device(hdev, hdrv);
2216 		if (id == NULL) {
2217 			ret = -ENODEV;
2218 			goto unlock;
2219 		}
2220 
2221 		hdev->driver = hdrv;
2222 		if (hdrv->probe) {
2223 			ret = hdrv->probe(hdev, id);
2224 		} else { /* default probe */
2225 			ret = hid_open_report(hdev);
2226 			if (!ret)
2227 				ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
2228 		}
2229 		if (ret) {
2230 			hid_close_report(hdev);
2231 			hdev->driver = NULL;
2232 		}
2233 	}
2234 unlock:
2235 	if (!hdev->io_started)
2236 		up(&hdev->driver_input_lock);
2237 unlock_driver_lock:
2238 	up(&hdev->driver_lock);
2239 	return ret;
2240 }
2241 
2242 static int hid_device_remove(struct device *dev)
2243 {
2244 	struct hid_device *hdev = to_hid_device(dev);
2245 	struct hid_driver *hdrv;
2246 	int ret = 0;
2247 
2248 	if (down_interruptible(&hdev->driver_lock))
2249 		return -EINTR;
2250 	if (down_interruptible(&hdev->driver_input_lock)) {
2251 		ret = -EINTR;
2252 		goto unlock_driver_lock;
2253 	}
2254 	hdev->io_started = false;
2255 
2256 	hdrv = hdev->driver;
2257 	if (hdrv) {
2258 		if (hdrv->remove)
2259 			hdrv->remove(hdev);
2260 		else /* default remove */
2261 			hid_hw_stop(hdev);
2262 		hid_close_report(hdev);
2263 		hdev->driver = NULL;
2264 	}
2265 
2266 	if (!hdev->io_started)
2267 		up(&hdev->driver_input_lock);
2268 unlock_driver_lock:
2269 	up(&hdev->driver_lock);
2270 	return ret;
2271 }
2272 
2273 static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
2274 			     char *buf)
2275 {
2276 	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
2277 
2278 	return scnprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
2279 			 hdev->bus, hdev->group, hdev->vendor, hdev->product);
2280 }
2281 static DEVICE_ATTR_RO(modalias);
2282 
2283 static struct attribute *hid_dev_attrs[] = {
2284 	&dev_attr_modalias.attr,
2285 	NULL,
2286 };
2287 static struct bin_attribute *hid_dev_bin_attrs[] = {
2288 	&dev_bin_attr_report_desc,
2289 	NULL
2290 };
2291 static const struct attribute_group hid_dev_group = {
2292 	.attrs = hid_dev_attrs,
2293 	.bin_attrs = hid_dev_bin_attrs,
2294 };
2295 __ATTRIBUTE_GROUPS(hid_dev);
2296 
2297 static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
2298 {
2299 	struct hid_device *hdev = to_hid_device(dev);
2300 
2301 	if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
2302 			hdev->bus, hdev->vendor, hdev->product))
2303 		return -ENOMEM;
2304 
2305 	if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
2306 		return -ENOMEM;
2307 
2308 	if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
2309 		return -ENOMEM;
2310 
2311 	if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
2312 		return -ENOMEM;
2313 
2314 	if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
2315 			   hdev->bus, hdev->group, hdev->vendor, hdev->product))
2316 		return -ENOMEM;
2317 
2318 	return 0;
2319 }
2320 
2321 static struct bus_type hid_bus_type = {
2322 	.name		= "hid",
2323 	.dev_groups	= hid_dev_groups,
2324 	.match		= hid_bus_match,
2325 	.probe		= hid_device_probe,
2326 	.remove		= hid_device_remove,
2327 	.uevent		= hid_uevent,
2328 };
2329 
2330 /* a list of devices that shouldn't be handled by HID core at all */
2331 static const struct hid_device_id hid_ignore_list[] = {
2332 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
2333 	{ HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
2334 	{ HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
2335 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
2336 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
2337 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
2338 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
2339 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
2340 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
2341 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
2342 	{ HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
2343 	{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
2344 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
2345 	{ HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
2346 	{ HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
2347 	{ HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
2348 	{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
2349 	{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
2350 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
2351 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI4713) },
2352 	{ HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
2353 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
2354 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
2355 	{ HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
2356 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
2357 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
2358 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0400) },
2359 	{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, 0x0401) },
2360 	{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
2361 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
2362 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
2363 	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
2364 	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
2365 	{ HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
2366 	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
2367 	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
2368 	{ HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
2369 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
2370 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
2371 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
2372 	{ HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
2373 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
2374 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
2375 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
2376 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
2377 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
2378 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
2379 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
2380 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
2381 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
2382 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
2383 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
2384 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
2385 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
2386 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
2387 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
2388 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
2389 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
2390 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
2391 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
2392 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
2393 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
2394 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
2395 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
2396 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
2397 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
2398 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
2399 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
2400 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
2401 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
2402 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
2403 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
2404 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
2405 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
2406 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
2407 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
2408 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
2409 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
2410 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
2411 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
2412 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
2413 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
2414 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
2415 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
2416 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
2417 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
2418 	{ HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
2419 	{ HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
2420 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_410) },
2421 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_SPEAK_510) },
2422 	{ HID_USB_DEVICE(USB_VENDOR_ID_JABRA, USB_DEVICE_ID_JABRA_GN9350E) },
2423 	{ HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
2424 	{ HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
2425 	{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
2426 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
2427 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
2428 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
2429 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
2430 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
2431 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
2432 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
2433 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
2434 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
2435 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
2436 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
2437 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
2438 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
2439 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
2440 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
2441 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
2442 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
2443 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
2444 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
2445 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
2446 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
2447 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
2448 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
2449 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
2450 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
2451 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
2452 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
2453 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
2454 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
2455 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
2456 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
2457 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
2458 	{ HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
2459 	{ HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
2460 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
2461 	{ HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
2462 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
2463 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
2464 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454) },
2465 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICK16F1454_V2) },
2466 	{ HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
2467 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
2468 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
2469 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
2470 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
2471 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
2472 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
2473 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
2474 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
2475 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
2476 	{ HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
2477 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
2478 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
2479 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
2480 	{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
2481 	{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
2482 	{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
2483 #if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
2484 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
2485 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
2486 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
2487 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
2488 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
2489 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
2490 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
2491 	{ HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
2492 #endif
2493 	{ HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
2494 	{ }
2495 };
2496 
2497 /**
2498  * hid_mouse_ignore_list - mouse devices which should not be handled by the hid layer
2499  *
2500  * There are composite devices for which we want to ignore only a certain
2501  * interface. This is a list of devices for which only the mouse interface will
2502  * be ignored. This allows a dedicated driver to take care of the interface.
2503  */
2504 static const struct hid_device_id hid_mouse_ignore_list[] = {
2505 	/* appletouch driver */
2506 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
2507 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
2508 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
2509 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
2510 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
2511 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
2512 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
2513 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
2514 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
2515 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
2516 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
2517 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
2518 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
2519 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
2520 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
2521 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
2522 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
2523 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
2524 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
2525 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
2526 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
2527 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
2528 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
2529 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
2530 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
2531 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
2532 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
2533 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
2534 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
2535 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
2536 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
2537 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
2538 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
2539 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
2540 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
2541 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
2542 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
2543 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
2544 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
2545 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
2546 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
2547 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
2548 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
2549 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
2550 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
2551 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
2552 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
2553 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ANSI) },
2554 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_ISO) },
2555 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING8_JIS) },
2556 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ANSI) },
2557 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_ISO) },
2558 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING9_JIS) },
2559 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
2560 	{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
2561 	{ }
2562 };
2563 
2564 bool hid_ignore(struct hid_device *hdev)
2565 {
2566 	if (hdev->quirks & HID_QUIRK_NO_IGNORE)
2567 		return false;
2568 	if (hdev->quirks & HID_QUIRK_IGNORE)
2569 		return true;
2570 
2571 	switch (hdev->vendor) {
2572 	case USB_VENDOR_ID_CODEMERCS:
2573 		/* ignore all Code Mercenaries IOWarrior devices */
2574 		if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
2575 				hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
2576 			return true;
2577 		break;
2578 	case USB_VENDOR_ID_LOGITECH:
2579 		if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
2580 				hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
2581 			return true;
2582 		/*
2583 		 * The Keene FM transmitter USB device has the same USB ID as
2584 		 * the Logitech AudioHub Speaker, but it should ignore the hid.
2585 		 * Check if the name is that of the Keene device.
2586 		 * For reference: the name of the AudioHub is
2587 		 * "HOLTEK  AudioHub Speaker".
2588 		 */
2589 		if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
2590 			!strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
2591 				return true;
2592 		break;
2593 	case USB_VENDOR_ID_SOUNDGRAPH:
2594 		if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
2595 		    hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
2596 			return true;
2597 		break;
2598 	case USB_VENDOR_ID_HANWANG:
2599 		if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
2600 		    hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
2601 			return true;
2602 		break;
2603 	case USB_VENDOR_ID_JESS:
2604 		if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
2605 				hdev->type == HID_TYPE_USBNONE)
2606 			return true;
2607 		break;
2608 	case USB_VENDOR_ID_VELLEMAN:
2609 		/* These are not HID devices.  They are handled by comedi. */
2610 		if ((hdev->product >= USB_DEVICE_ID_VELLEMAN_K8055_FIRST &&
2611 		     hdev->product <= USB_DEVICE_ID_VELLEMAN_K8055_LAST) ||
2612 		    (hdev->product >= USB_DEVICE_ID_VELLEMAN_K8061_FIRST &&
2613 		     hdev->product <= USB_DEVICE_ID_VELLEMAN_K8061_LAST))
2614 			return true;
2615 		break;
2616 	case USB_VENDOR_ID_ATMEL_V_USB:
2617 		/* Masterkit MA901 usb radio based on Atmel tiny85 chip and
2618 		 * it has the same USB ID as many Atmel V-USB devices. This
2619 		 * usb radio is handled by radio-ma901.c driver so we want
2620 		 * ignore the hid. Check the name, bus, product and ignore
2621 		 * if we have MA901 usb radio.
2622 		 */
2623 		if (hdev->product == USB_DEVICE_ID_ATMEL_V_USB &&
2624 			hdev->bus == BUS_USB &&
2625 			strncmp(hdev->name, "www.masterkit.ru MA901", 22) == 0)
2626 			return true;
2627 		break;
2628 	}
2629 
2630 	if (hdev->type == HID_TYPE_USBMOUSE &&
2631 			hid_match_id(hdev, hid_mouse_ignore_list))
2632 		return true;
2633 
2634 	return !!hid_match_id(hdev, hid_ignore_list);
2635 }
2636 EXPORT_SYMBOL_GPL(hid_ignore);
2637 
2638 int hid_add_device(struct hid_device *hdev)
2639 {
2640 	static atomic_t id = ATOMIC_INIT(0);
2641 	int ret;
2642 
2643 	if (WARN_ON(hdev->status & HID_STAT_ADDED))
2644 		return -EBUSY;
2645 
2646 	/* we need to kill them here, otherwise they will stay allocated to
2647 	 * wait for coming driver */
2648 	if (hid_ignore(hdev))
2649 		return -ENODEV;
2650 
2651 	/*
2652 	 * Check for the mandatory transport channel.
2653 	 */
2654 	 if (!hdev->ll_driver->raw_request) {
2655 		hid_err(hdev, "transport driver missing .raw_request()\n");
2656 		return -EINVAL;
2657 	 }
2658 
2659 	/*
2660 	 * Read the device report descriptor once and use as template
2661 	 * for the driver-specific modifications.
2662 	 */
2663 	ret = hdev->ll_driver->parse(hdev);
2664 	if (ret)
2665 		return ret;
2666 	if (!hdev->dev_rdesc)
2667 		return -ENODEV;
2668 
2669 	/*
2670 	 * Scan generic devices for group information
2671 	 */
2672 	if (hid_ignore_special_drivers) {
2673 		hdev->group = HID_GROUP_GENERIC;
2674 	} else if (!hdev->group &&
2675 		   !hid_match_id(hdev, hid_have_special_driver)) {
2676 		ret = hid_scan_report(hdev);
2677 		if (ret)
2678 			hid_warn(hdev, "bad device descriptor (%d)\n", ret);
2679 	}
2680 
2681 	/* XXX hack, any other cleaner solution after the driver core
2682 	 * is converted to allow more than 20 bytes as the device name? */
2683 	dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
2684 		     hdev->vendor, hdev->product, atomic_inc_return(&id));
2685 
2686 	hid_debug_register(hdev, dev_name(&hdev->dev));
2687 	ret = device_add(&hdev->dev);
2688 	if (!ret)
2689 		hdev->status |= HID_STAT_ADDED;
2690 	else
2691 		hid_debug_unregister(hdev);
2692 
2693 	return ret;
2694 }
2695 EXPORT_SYMBOL_GPL(hid_add_device);
2696 
2697 /**
2698  * hid_allocate_device - allocate new hid device descriptor
2699  *
2700  * Allocate and initialize hid device, so that hid_destroy_device might be
2701  * used to free it.
2702  *
2703  * New hid_device pointer is returned on success, otherwise ERR_PTR encoded
2704  * error value.
2705  */
2706 struct hid_device *hid_allocate_device(void)
2707 {
2708 	struct hid_device *hdev;
2709 	int ret = -ENOMEM;
2710 
2711 	hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
2712 	if (hdev == NULL)
2713 		return ERR_PTR(ret);
2714 
2715 	device_initialize(&hdev->dev);
2716 	hdev->dev.release = hid_device_release;
2717 	hdev->dev.bus = &hid_bus_type;
2718 	device_enable_async_suspend(&hdev->dev);
2719 
2720 	hid_close_report(hdev);
2721 
2722 	init_waitqueue_head(&hdev->debug_wait);
2723 	INIT_LIST_HEAD(&hdev->debug_list);
2724 	spin_lock_init(&hdev->debug_list_lock);
2725 	sema_init(&hdev->driver_lock, 1);
2726 	sema_init(&hdev->driver_input_lock, 1);
2727 
2728 	return hdev;
2729 }
2730 EXPORT_SYMBOL_GPL(hid_allocate_device);
2731 
2732 static void hid_remove_device(struct hid_device *hdev)
2733 {
2734 	if (hdev->status & HID_STAT_ADDED) {
2735 		device_del(&hdev->dev);
2736 		hid_debug_unregister(hdev);
2737 		hdev->status &= ~HID_STAT_ADDED;
2738 	}
2739 	kfree(hdev->dev_rdesc);
2740 	hdev->dev_rdesc = NULL;
2741 	hdev->dev_rsize = 0;
2742 }
2743 
2744 /**
2745  * hid_destroy_device - free previously allocated device
2746  *
2747  * @hdev: hid device
2748  *
2749  * If you allocate hid_device through hid_allocate_device, you should ever
2750  * free by this function.
2751  */
2752 void hid_destroy_device(struct hid_device *hdev)
2753 {
2754 	hid_remove_device(hdev);
2755 	put_device(&hdev->dev);
2756 }
2757 EXPORT_SYMBOL_GPL(hid_destroy_device);
2758 
2759 int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
2760 		const char *mod_name)
2761 {
2762 	int ret;
2763 
2764 	hdrv->driver.name = hdrv->name;
2765 	hdrv->driver.bus = &hid_bus_type;
2766 	hdrv->driver.owner = owner;
2767 	hdrv->driver.mod_name = mod_name;
2768 
2769 	INIT_LIST_HEAD(&hdrv->dyn_list);
2770 	spin_lock_init(&hdrv->dyn_lock);
2771 
2772 	ret = driver_register(&hdrv->driver);
2773 	if (ret)
2774 		return ret;
2775 
2776 	ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
2777 	if (ret)
2778 		driver_unregister(&hdrv->driver);
2779 
2780 	return ret;
2781 }
2782 EXPORT_SYMBOL_GPL(__hid_register_driver);
2783 
2784 void hid_unregister_driver(struct hid_driver *hdrv)
2785 {
2786 	driver_remove_file(&hdrv->driver, &driver_attr_new_id);
2787 	driver_unregister(&hdrv->driver);
2788 	hid_free_dynids(hdrv);
2789 }
2790 EXPORT_SYMBOL_GPL(hid_unregister_driver);
2791 
2792 int hid_check_keys_pressed(struct hid_device *hid)
2793 {
2794 	struct hid_input *hidinput;
2795 	int i;
2796 
2797 	if (!(hid->claimed & HID_CLAIMED_INPUT))
2798 		return 0;
2799 
2800 	list_for_each_entry(hidinput, &hid->inputs, list) {
2801 		for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
2802 			if (hidinput->input->key[i])
2803 				return 1;
2804 	}
2805 
2806 	return 0;
2807 }
2808 
2809 EXPORT_SYMBOL_GPL(hid_check_keys_pressed);
2810 
2811 static int __init hid_init(void)
2812 {
2813 	int ret;
2814 
2815 	if (hid_debug)
2816 		pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
2817 			"debugfs is now used for inspecting the device (report descriptor, reports)\n");
2818 
2819 	ret = bus_register(&hid_bus_type);
2820 	if (ret) {
2821 		pr_err("can't register hid bus\n");
2822 		goto err;
2823 	}
2824 
2825 	ret = hidraw_init();
2826 	if (ret)
2827 		goto err_bus;
2828 
2829 	hid_debug_init();
2830 
2831 	return 0;
2832 err_bus:
2833 	bus_unregister(&hid_bus_type);
2834 err:
2835 	return ret;
2836 }
2837 
2838 static void __exit hid_exit(void)
2839 {
2840 	hid_debug_exit();
2841 	hidraw_exit();
2842 	bus_unregister(&hid_bus_type);
2843 }
2844 
2845 module_init(hid_init);
2846 module_exit(hid_exit);
2847 
2848 MODULE_AUTHOR("Andreas Gal");
2849 MODULE_AUTHOR("Vojtech Pavlik");
2850 MODULE_AUTHOR("Jiri Kosina");
2851 MODULE_LICENSE(DRIVER_LICENSE);
2852 
2853