hid-core.c

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/*
 *  HID support for Linux
 *
 *  Copyright (c) 1999 Andreas Gal
 *  Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
 *  Copyright (c) 2005 Michael Haboustak <[email protected]> for Concept2, Inc
 *  Copyright (c) 2006-2012 Jiri Kosina
 */

/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 */

#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/mm.h>
#include <linux/spinlock.h>
#include <asm/unaligned.h>
#include <asm/byteorder.h>
#include <linux/input.h>
#include <linux/wait.h>
#include <linux/vmalloc.h>
#include <linux/sched.h>
#include <linux/semaphore.h>

#include <linux/hid.h>
#include <linux/hiddev.h>
#include <linux/hid-debug.h>
#include <linux/hidraw.h>

#include "hid-ids.h"

/*
 * Version Information
 */

#define DRIVER_DESC "HID core driver"
#define DRIVER_LICENSE "GPL"

int hid_debug = 0;
module_param_named(debug, hid_debug, int, 0600);
MODULE_PARM_DESC(debug, "toggle HID debugging messages");
EXPORT_SYMBOL_GPL(hid_debug);

static int hid_ignore_special_drivers = 0;
module_param_named(ignore_special_drivers, hid_ignore_special_drivers, int, 0600);
MODULE_PARM_DESC(debug, "Ignore any special drivers and handle all devices by generic driver");

/*
 * Register a new report for a device.
 */

struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
{
    struct hid_report_enum *report_enum = device->report_enum + type;
    struct hid_report *report;

    if (report_enum->report_id_hash[id])
        return report_enum->report_id_hash[id];

    report = kzalloc(sizeof(struct hid_report), GFP_KERNEL);
    if (!report)
        return NULL;

    if (id != 0)
        report_enum->numbered = 1;

    report->id = id;
    report->type = type;
    report->size = 0;
    report->device = device;
    report_enum->report_id_hash[id] = report;

    list_add_tail(&report->list, &report_enum->report_list);

    return report;
}
EXPORT_SYMBOL_GPL(hid_register_report);

/*
 * Register a new field for this report.
 */

static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
{
    struct hid_field *field;

    if (report->maxfield == HID_MAX_FIELDS) {
        hid_err(report->device, "too many fields in report\n");
        return NULL;
    }

    field = kzalloc((sizeof(struct hid_field) +
             usages * sizeof(struct hid_usage) +
             values * sizeof(unsigned)), GFP_KERNEL);
    if (!field)
        return NULL;

    field->index = report->maxfield++;
    report->field[field->index] = field;
    field->usage = (struct hid_usage *)(field + 1);
    field->value = (s32 *)(field->usage + usages);
    field->report = report;

    return field;
}

/*
 * Open a collection. The type/usage is pushed on the stack.
 */

static int open_collection(struct hid_parser *parser, unsigned type)
{
    struct hid_collection *collection;
    unsigned usage;

    usage = parser->local.usage[0];

    if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
        hid_err(parser->device, "collection stack overflow\n");
        return -EINVAL;
    }

    if (parser->device->maxcollection == parser->device->collection_size) {
        collection = kmalloc(sizeof(struct hid_collection) *
                parser->device->collection_size * 2, GFP_KERNEL);
        if (collection == NULL) {
            hid_err(parser->device, "failed to reallocate collection array\n");
            return -ENOMEM;
        }
        memcpy(collection, parser->device->collection,
            sizeof(struct hid_collection) *
            parser->device->collection_size);
        memset(collection + parser->device->collection_size, 0,
            sizeof(struct hid_collection) *
            parser->device->collection_size);
        kfree(parser->device->collection);
        parser->device->collection = collection;
        parser->device->collection_size *= 2;
    }

    parser->collection_stack[parser->collection_stack_ptr++] =
        parser->device->maxcollection;

    collection = parser->device->collection +
        parser->device->maxcollection++;
    collection->type = type;
    collection->usage = usage;
    collection->level = parser->collection_stack_ptr - 1;

    if (type == HID_COLLECTION_APPLICATION)
        parser->device->maxapplication++;

    return 0;
}

/*
 * Close a collection.
 */

static int close_collection(struct hid_parser *parser)
{
    if (!parser->collection_stack_ptr) {
        hid_err(parser->device, "collection stack underflow\n");
        return -EINVAL;
    }
    parser->collection_stack_ptr--;
    return 0;
}

/*
 * Climb up the stack, search for the specified collection type
 * and return the usage.
 */

static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
{
    struct hid_collection *collection = parser->device->collection;
    int n;

    for (n = parser->collection_stack_ptr - 1; n >= 0; n--) {
        unsigned index = parser->collection_stack[n];
        if (collection[index].type == type)
            return collection[index].usage;
    }
    return 0; /* we know nothing about this usage type */
}

/*
 * Add a usage to the temporary parser table.
 */

static int hid_add_usage(struct hid_parser *parser, unsigned usage)
{
    if (parser->local.usage_index >= HID_MAX_USAGES) {
        hid_err(parser->device, "usage index exceeded\n");
        return -1;
    }
    parser->local.usage[parser->local.usage_index] = usage;
    parser->local.collection_index[parser->local.usage_index] =
        parser->collection_stack_ptr ?
        parser->collection_stack[parser->collection_stack_ptr - 1] : 0;
    parser->local.usage_index++;
    return 0;
}

/*
 * Register a new field for this report.
 */

static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsigned flags)
{
    struct hid_report *report;
    struct hid_field *field;
    int usages;
    unsigned offset;
    int i;

    report = hid_register_report(parser->device, report_type, parser->global.report_id);
    if (!report) {
        hid_err(parser->device, "hid_register_report failed\n");
        return -1;
    }

    /* Handle both signed and unsigned cases properly */
    if ((parser->global.logical_minimum < 0 &&
        parser->global.logical_maximum <
        parser->global.logical_minimum) ||
        (parser->global.logical_minimum >= 0 &&
        (__u32)parser->global.logical_maximum <
        (__u32)parser->global.logical_minimum)) {
        dbg_hid("logical range invalid 0x%x 0x%x\n",
            parser->global.logical_minimum,
            parser->global.logical_maximum);
        return -1;
    }

    offset = report->size;
    report->size += parser->global.report_size * parser->global.report_count;

    if (!parser->local.usage_index) /* Ignore padding fields */
        return 0;

    usages = max_t(int, parser->local.usage_index, parser->global.report_count);

    field = hid_register_field(report, usages, parser->global.report_count);
    if (!field)
        return 0;

    field->physical = hid_lookup_collection(parser, HID_COLLECTION_PHYSICAL);
    field->logical = hid_lookup_collection(parser, HID_COLLECTION_LOGICAL);
    field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);

    for (i = 0; i < usages; i++) {
        int j = i;
        /* Duplicate the last usage we parsed if we have excess values */
        if (i >= parser->local.usage_index)
            j = parser->local.usage_index - 1;
        field->usage[i].hid = parser->local.usage[j];
        field->usage[i].collection_index =
            parser->local.collection_index[j];
    }

    field->maxusage = usages;
    field->flags = flags;
    field->report_offset = offset;
    field->report_type = report_type;
    field->report_size = parser->global.report_size;
    field->report_count = parser->global.report_count;
    field->logical_minimum = parser->global.logical_minimum;
    field->logical_maximum = parser->global.logical_maximum;
    field->physical_minimum = parser->global.physical_minimum;
    field->physical_maximum = parser->global.physical_maximum;
    field->unit_exponent = parser->global.unit_exponent;
    field->unit = parser->global.unit;

    return 0;
}

/*
 * Read data value from item.
 */

static u32 item_udata(struct hid_item *item)
{
    switch (item->size) {
    case 1: return item->data.u8;
    case 2: return item->data.u16;
    case 4: return item->data.u32;
    }
    return 0;
}

static s32 item_sdata(struct hid_item *item)
{
    switch (item->size) {
    case 1: return item->data.s8;
    case 2: return item->data.s16;
    case 4: return item->data.s32;
    }
    return 0;
}

/*
 * Process a global item.
 */

static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
{
    switch (item->tag) {
    case HID_GLOBAL_ITEM_TAG_PUSH:

        if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
            hid_err(parser->device, "global environment stack overflow\n");
            return -1;
        }

        memcpy(parser->global_stack + parser->global_stack_ptr++,
            &parser->global, sizeof(struct hid_global));
        return 0;

    case HID_GLOBAL_ITEM_TAG_POP:

        if (!parser->global_stack_ptr) {
            hid_err(parser->device, "global environment stack underflow\n");
            return -1;
        }

        memcpy(&parser->global, parser->global_stack +
            --parser->global_stack_ptr, sizeof(struct hid_global));
        return 0;

    case HID_GLOBAL_ITEM_TAG_USAGE_PAGE:
        parser->global.usage_page = item_udata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM:
        parser->global.logical_minimum = item_sdata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM:
        if (parser->global.logical_minimum < 0)
            parser->global.logical_maximum = item_sdata(item);
        else
            parser->global.logical_maximum = item_udata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM:
        parser->global.physical_minimum = item_sdata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM:
        if (parser->global.physical_minimum < 0)
            parser->global.physical_maximum = item_sdata(item);
        else
            parser->global.physical_maximum = item_udata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT:
        parser->global.unit_exponent = item_sdata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_UNIT:
        parser->global.unit = item_udata(item);
        return 0;

    case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
        parser->global.report_size = item_udata(item);
        if (parser->global.report_size > 128) {
            hid_err(parser->device, "invalid report_size %d\n",
                    parser->global.report_size);
            return -1;
        }
        return 0;

    case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
        parser->global.report_count = item_udata(item);
        if (parser->global.report_count > HID_MAX_USAGES) {
            hid_err(parser->device, "invalid report_count %d\n",
                    parser->global.report_count);
            return -1;
        }
        return 0;

    case HID_GLOBAL_ITEM_TAG_REPORT_ID:
        parser->global.report_id = item_udata(item);
        if (parser->global.report_id == 0) {
            hid_err(parser->device, "report_id 0 is invalid\n");
            return -1;
        }
        return 0;

    default:
        hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
        return -1;
    }
}

/*
 * Process a local item.
 */

static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
{
    __u32 data;
    unsigned n;

    data = item_udata(item);

    switch (item->tag) {
    case HID_LOCAL_ITEM_TAG_DELIMITER:

        if (data) {
            /*
             * We treat items before the first delimiter
             * as global to all usage sets (branch 0).
             * In the moment we process only these global
             * items and the first delimiter set.
             */
            if (parser->local.delimiter_depth != 0) {
                hid_err(parser->device, "nested delimiters\n");
                return -1;
            }
            parser->local.delimiter_depth++;
            parser->local.delimiter_branch++;
        } else {
            if (parser->local.delimiter_depth < 1) {
                hid_err(parser->device, "bogus close delimiter\n");
                return -1;
            }
            parser->local.delimiter_depth--;
        }
        return 1;

    case HID_LOCAL_ITEM_TAG_USAGE:

        if (parser->local.delimiter_branch > 1) {
            dbg_hid("alternative usage ignored\n");
            return 0;
        }

        if (item->size <= 2)
            data = (parser->global.usage_page << 16) + data;

        return hid_add_usage(parser, data);

    case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:

        if (parser->local.delimiter_branch > 1) {
            dbg_hid("alternative usage ignored\n");
            return 0;
        }

        if (item->size <= 2)
            data = (parser->global.usage_page << 16) + data;

        parser->local.usage_minimum = data;
        return 0;

    case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:

        if (parser->local.delimiter_branch > 1) {
            dbg_hid("alternative usage ignored\n");
            return 0;
        }

        if (item->size <= 2)
            data = (parser->global.usage_page << 16) + data;

        for (n = parser->local.usage_minimum; n <= data; n++)
            if (hid_add_usage(parser, n)) {
                dbg_hid("hid_add_usage failed\n");
                return -1;
            }
        return 0;

    default:

        dbg_hid("unknown local item tag 0x%x\n", item->tag);
        return 0;
    }
    return 0;
}

/*
 * Process a main item.
 */

static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
{
    __u32 data;
    int ret;

    data = item_udata(item);

    switch (item->tag) {
    case HID_MAIN_ITEM_TAG_BEGIN_COLLECTION:
        ret = open_collection(parser, data & 0xff);
        break;
    case HID_MAIN_ITEM_TAG_END_COLLECTION:
        ret = close_collection(parser);
        break;
    case HID_MAIN_ITEM_TAG_INPUT:
        ret = hid_add_field(parser, HID_INPUT_REPORT, data);
        break;
    case HID_MAIN_ITEM_TAG_OUTPUT:
        ret = hid_add_field(parser, HID_OUTPUT_REPORT, data);
        break;
    case HID_MAIN_ITEM_TAG_FEATURE:
        ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
        break;
    default:
        hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
        ret = 0;
    }

    memset(&parser->local, 0, sizeof(parser->local));   /* Reset the local parser environment */

    return ret;
}

/*
 * Process a reserved item.
 */

static int hid_parser_reserved(struct hid_parser *parser, struct hid_item *item)
{
    dbg_hid("reserved item type, tag 0x%x\n", item->tag);
    return 0;
}

/*
 * Free a report and all registered fields. The field->usage and
 * field->value table's are allocated behind the field, so we need
 * only to free(field) itself.
 */

static void hid_free_report(struct hid_report *report)
{
    unsigned n;

    for (n = 0; n < report->maxfield; n++)
        kfree(report->field[n]);
    kfree(report);
}

/*
 * Close report. This function returns the device
 * state to the point prior to hid_open_report().
 */
static void hid_close_report(struct hid_device *device)
{
    unsigned i, j;

    for (i = 0; i < HID_REPORT_TYPES; i++) {
        struct hid_report_enum *report_enum = device->report_enum + i;

        for (j = 0; j < 256; j++) {
            struct hid_report *report = report_enum->report_id_hash[j];
            if (report)
                hid_free_report(report);
        }
        memset(report_enum, 0, sizeof(*report_enum));
        INIT_LIST_HEAD(&report_enum->report_list);
    }

    kfree(device->rdesc);
    device->rdesc = NULL;
    device->rsize = 0;

    kfree(device->collection);
    device->collection = NULL;
    device->collection_size = 0;
    device->maxcollection = 0;
    device->maxapplication = 0;

    device->status &= ~HID_STAT_PARSED;
}

/*
 * Free a device structure, all reports, and all fields.
 */

static void hid_device_release(struct device *dev)
{
    struct hid_device *hid = container_of(dev, struct hid_device, dev);

    hid_close_report(hid);
    kfree(hid->dev_rdesc);
    kfree(hid);
}

/*
 * Fetch a report description item from the data stream. We support long
 * items, though they are not used yet.
 */

static u8 *fetch_item(__u8 *start, __u8 *end, struct hid_item *item)
{
    u8 b;

    if ((end - start) <= 0)
        return NULL;

    b = *start++;

    item->type = (b >> 2) & 3;
    item->tag  = (b >> 4) & 15;

    if (item->tag == HID_ITEM_TAG_LONG) {

        item->format = HID_ITEM_FORMAT_LONG;

        if ((end - start) < 2)
            return NULL;

        item->size = *start++;
        item->tag  = *start++;

        if ((end - start) < item->size)
            return NULL;

        item->data.longdata = start;
        start += item->size;
        return start;
    }

    item->format = HID_ITEM_FORMAT_SHORT;
    item->size = b & 3;

    switch (item->size) {
    case 0:
        return start;

    case 1:
        if ((end - start) < 1)
            return NULL;
        item->data.u8 = *start++;
        return start;

    case 2:
        if ((end - start) < 2)
            return NULL;
        item->data.u16 = get_unaligned_le16(start);
        start = (__u8 *)((__le16 *)start + 1);
        return start;

    case 3:
        item->size++;
        if ((end - start) < 4)
            return NULL;
        item->data.u32 = get_unaligned_le32(start);
        start = (__u8 *)((__le32 *)start + 1);
        return start;
    }

    return NULL;
}

static void hid_scan_usage(struct hid_device *hid, u32 usage)
{
    if (usage == HID_DG_CONTACTID)
        hid->group = HID_GROUP_MULTITOUCH;
}

/*
 * Scan a report descriptor before the device is added to the bus.
 * Sets device groups and other properties that determine what driver
 * to load.
 */
static int hid_scan_report(struct hid_device *hid)
{
    unsigned int page = 0, delim = 0;
    __u8 *start = hid->dev_rdesc;
    __u8 *end = start + hid->dev_rsize;
    unsigned int u, u_min = 0, u_max = 0;
    struct hid_item item;

    hid->group = HID_GROUP_GENERIC;
    while ((start = fetch_item(start, end, &item)) != NULL) {
        if (item.format != HID_ITEM_FORMAT_SHORT)
            return -EINVAL;
        if (item.type == HID_ITEM_TYPE_GLOBAL) {
            if (item.tag == HID_GLOBAL_ITEM_TAG_USAGE_PAGE)
                page = item_udata(&item) << 16;
        } else if (item.type == HID_ITEM_TYPE_LOCAL) {
            if (delim > 1)
                break;
            u = item_udata(&item);
            if (item.size <= 2)
                u += page;
            switch (item.tag) {
            case HID_LOCAL_ITEM_TAG_DELIMITER:
                delim += !!u;
                break;
            case HID_LOCAL_ITEM_TAG_USAGE:
                hid_scan_usage(hid, u);
                break;
            case HID_LOCAL_ITEM_TAG_USAGE_MINIMUM:
                u_min = u;
                break;
            case HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM:
                u_max = u;
                for (u = u_min; u <= u_max; u++)
                    hid_scan_usage(hid, u);
                break;
            }
        }
    }

    return 0;
}

int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
{
    hid->dev_rdesc = kmemdup(start, size, GFP_KERNEL);
    if (!hid->dev_rdesc)
        return -ENOMEM;
    hid->dev_rsize = size;
    return 0;
}
EXPORT_SYMBOL_GPL(hid_parse_report);

int hid_open_report(struct hid_device *device)
{
    struct hid_parser *parser;
    struct hid_item item;
    unsigned int size;
    __u8 *start;
    __u8 *buf;
    __u8 *end;
    int ret;
    static int (*dispatch_type[])(struct hid_parser *parser,
                      struct hid_item *item) = {
        hid_parser_main,
        hid_parser_global,
        hid_parser_local,
        hid_parser_reserved
    };

    if (WARN_ON(device->status & HID_STAT_PARSED))
        return -EBUSY;

    start = device->dev_rdesc;
    if (WARN_ON(!start))
        return -ENODEV;
    size = device->dev_rsize;

    buf = kmemdup(start, size, GFP_KERNEL);
    if (buf == NULL)
        return -ENOMEM;

    if (device->driver->report_fixup)
        start = device->driver->report_fixup(device, buf, &size);
    else
        start = buf;

    start = kmemdup(start, size, GFP_KERNEL);
    kfree(buf);
    if (start == NULL)
        return -ENOMEM;

    device->rdesc = start;
    device->rsize = size;

    parser = vzalloc(sizeof(struct hid_parser));
    if (!parser) {
        ret = -ENOMEM;
        goto err;
    }

    parser->device = device;

    end = start + size;

    device->collection = kcalloc(HID_DEFAULT_NUM_COLLECTIONS,
                     sizeof(struct hid_collection), GFP_KERNEL);
    if (!device->collection) {
        ret = -ENOMEM;
        goto err;
    }
    device->collection_size = HID_DEFAULT_NUM_COLLECTIONS;

    ret = -EINVAL;
    while ((start = fetch_item(start, end, &item)) != NULL) {

        if (item.format != HID_ITEM_FORMAT_SHORT) {
            hid_err(device, "unexpected long global item\n");
            goto err;
        }

        if (dispatch_type[item.type](parser, &item)) {
            hid_err(device, "item %u %u %u %u parsing failed\n",
                item.format, (unsigned)item.size,
                (unsigned)item.type, (unsigned)item.tag);
            goto err;
        }

        if (start == end) {
            if (parser->collection_stack_ptr) {
                hid_err(device, "unbalanced collection at end of report description\n");
                goto err;
            }
            if (parser->local.delimiter_depth) {
                hid_err(device, "unbalanced delimiter at end of report description\n");
                goto err;
            }
            vfree(parser);
            device->status |= HID_STAT_PARSED;
            return 0;
        }
    }

    hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
err:
    vfree(parser);
    hid_close_report(device);
    return ret;
}
EXPORT_SYMBOL_GPL(hid_open_report);

/*
 * Convert a signed n-bit integer to signed 32-bit integer. Common
 * cases are done through the compiler, the screwed things has to be
 * done by hand.
 */

static s32 snto32(__u32 value, unsigned n)
{
    switch (n) {
    case 8:  return ((__s8)value);
    case 16: return ((__s16)value);
    case 32: return ((__s32)value);
    }
    return value & (1 << (n - 1)) ? value | (-1 << n) : value;
}

/*
 * Convert a signed 32-bit integer to a signed n-bit integer.
 */

static u32 s32ton(__s32 value, unsigned n)
{
    s32 a = value >> (n - 1);
    if (a && a != -1)
        return value < 0 ? 1 << (n - 1) : (1 << (n - 1)) - 1;
    return value & ((1 << n) - 1);
}

/*
 * Extract/implement a data field from/to a little endian report (bit array).
 *
 * Code sort-of follows HID spec:
 *     http://www.usb.org/developers/devclass_docs/HID1_11.pdf
 *
 * While the USB HID spec allows unlimited length bit fields in "report
 * descriptors", most devices never use more than 16 bits.
 * One model of UPS is claimed to report "LINEV" as a 32-bit field.
 * Search linux-kernel and linux-usb-devel archives for "hid-core extract".
 */

static __u32 extract(const struct hid_device *hid, __u8 *report,
             unsigned offset, unsigned n)
{
    u64 x;

    if (n > 32)
        hid_warn(hid, "extract() called with n (%d) > 32! (%s)\n",
             n, current->comm);

    report += offset >> 3;  /* adjust byte index */
    offset &= 7;            /* now only need bit offset into one byte */
    x = get_unaligned_le64(report);
    x = (x >> offset) & ((1ULL << n) - 1);  /* extract bit field */
    return (u32) x;
}

/*
 * "implement" : set bits in a little endian bit stream.
 * Same concepts as "extract" (see comments above).
 * The data mangled in the bit stream remains in little endian
 * order the whole time. It make more sense to talk about
 * endianness of register values by considering a register
 * a "cached" copy of the little endiad bit stream.
 */
static void implement(const struct hid_device *hid, __u8 *report,
              unsigned offset, unsigned n, __u32 value)
{
    u64 x;
    u64 m = (1ULL << n) - 1;

    if (n > 32)
        hid_warn(hid, "%s() called with n (%d) > 32! (%s)\n",
             __func__, n, current->comm);

    if (value > m)
        hid_warn(hid, "%s() called with too large value %d! (%s)\n",
             __func__, value, current->comm);
    WARN_ON(value > m);
    value &= m;

    report += offset >> 3;
    offset &= 7;

    x = get_unaligned_le64(report);
    x &= ~(m << offset);
    x |= ((u64)value) << offset;
    put_unaligned_le64(x, report);
}

/*
 * Search an array for a value.
 */

static int search(__s32 *array, __s32 value, unsigned n)
{
    while (n--) {
        if (*array++ == value)
            return 0;
    }
    return -1;
}

static int hid_match_report(struct hid_device *hid, struct hid_report *report)
{
    const struct hid_report_id *id = hid->driver->report_table;

    if (!id) /* NULL means all */
        return 1;

    for (; id->report_type != HID_TERMINATOR; id++)
        if (id->report_type == HID_ANY_ID ||
                id->report_type == report->type)
            return 1;
    return 0;
}

static int hid_match_usage(struct hid_device *hid, struct hid_usage *usage)
{
    const struct hid_usage_id *id = hid->driver->usage_table;

    if (!id) /* NULL means all */
        return 1;

    for (; id->usage_type != HID_ANY_ID - 1; id++)
        if ((id->usage_hid == HID_ANY_ID ||
                id->usage_hid == usage->hid) &&
                (id->usage_type == HID_ANY_ID ||
                id->usage_type == usage->type) &&
                (id->usage_code == HID_ANY_ID ||
                 id->usage_code == usage->code))
            return 1;
    return 0;
}

static void hid_process_event(struct hid_device *hid, struct hid_field *field,
        struct hid_usage *usage, __s32 value, int interrupt)
{
    struct hid_driver *hdrv = hid->driver;
    int ret;

    if (!list_empty(&hid->debug_list))
        hid_dump_input(hid, usage, value);

    if (hdrv && hdrv->event && hid_match_usage(hid, usage)) {
        ret = hdrv->event(hid, field, usage, value);
        if (ret != 0) {
            if (ret < 0)
                hid_err(hid, "%s's event failed with %d\n",
                        hdrv->name, ret);
            return;
        }
    }

    if (hid->claimed & HID_CLAIMED_INPUT)
        hidinput_hid_event(hid, field, usage, value);
    if (hid->claimed & HID_CLAIMED_HIDDEV && interrupt && hid->hiddev_hid_event)
        hid->hiddev_hid_event(hid, field, usage, value);
}

/*
 * Analyse a received field, and fetch the data from it. The field
 * content is stored for next report processing (we do differential
 * reporting to the layer).
 */

static void hid_input_field(struct hid_device *hid, struct hid_field *field,
                __u8 *data, int interrupt)
{
    unsigned n;
    unsigned count = field->report_count;
    unsigned offset = field->report_offset;
    unsigned size = field->report_size;
    __s32 min = field->logical_minimum;
    __s32 max = field->logical_maximum;
    __s32 *value;

    value = kmalloc(sizeof(__s32) * count, GFP_ATOMIC);
    if (!value)
        return;

    for (n = 0; n < count; n++) {

        value[n] = min < 0 ?
            snto32(extract(hid, data, offset + n * size, size),
                   size) :
            extract(hid, data, offset + n * size, size);

        /* Ignore report if ErrorRollOver */
        if (!(field->flags & HID_MAIN_ITEM_VARIABLE) &&
            value[n] >= min && value[n] <= max &&
            field->usage[value[n] - min].hid == HID_UP_KEYBOARD + 1)
            goto exit;
    }

    for (n = 0; n < count; n++) {

        if (HID_MAIN_ITEM_VARIABLE & field->flags) {
            hid_process_event(hid, field, &field->usage[n], value[n], interrupt);
            continue;
        }

        if (field->value[n] >= min && field->value[n] <= max
            && field->usage[field->value[n] - min].hid
            && search(value, field->value[n], count))
                hid_process_event(hid, field, &field->usage[field->value[n] - min], 0, interrupt);

        if (value[n] >= min && value[n] <= max
            && field->usage[value[n] - min].hid
            && search(field->value, value[n], count))
                hid_process_event(hid, field, &field->usage[value[n] - min], 1, interrupt);
    }

    memcpy(field->value, value, count * sizeof(__s32));
exit:
    kfree(value);
}

/*
 * Output the field into the report.
 */

static void hid_output_field(const struct hid_device *hid,
                 struct hid_field *field, __u8 *data)
{
    unsigned count = field->report_count;
    unsigned offset = field->report_offset;
    unsigned size = field->report_size;
    unsigned n;

    for (n = 0; n < count; n++) {
        if (field->logical_minimum < 0) /* signed values */
            implement(hid, data, offset + n * size, size,
                  s32ton(field->value[n], size));
        else                /* unsigned values */
            implement(hid, data, offset + n * size, size,
                  field->value[n]);
    }
}

/*
 * Create a report.
 */

void hid_output_report(struct hid_report *report, __u8 *data)
{
    unsigned n;

    if (report->id > 0)
        *data++ = report->id;

    memset(data, 0, ((report->size - 1) >> 3) + 1);
    for (n = 0; n < report->maxfield; n++)
        hid_output_field(report->device, report->field[n], data);
}
EXPORT_SYMBOL_GPL(hid_output_report);

/*
 * Set a field value. The report this field belongs to has to be
 * created and transferred to the device, to set this value in the
 * device.
 */

int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
{
    unsigned size = field->report_size;

    hid_dump_input(field->report->device, field->usage + offset, value);

    if (offset >= field->report_count) {
        hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
                offset, field->report_count);
        return -1;
    }
    if (field->logical_minimum < 0) {
        if (value != snto32(s32ton(value, size), size)) {
            hid_err(field->report->device, "value %d is out of range\n", value);
            return -1;
        }
    }
    field->value[offset] = value;
    return 0;
}
EXPORT_SYMBOL_GPL(hid_set_field);

static struct hid_report *hid_get_report(struct hid_report_enum *report_enum,
        const u8 *data)
{
    struct hid_report *report;
    unsigned int n = 0; /* Normally report number is 0 */

    /* Device uses numbered reports, data[0] is report number */
    if (report_enum->numbered)
        n = *data;

    report = report_enum->report_id_hash[n];
    if (report == NULL)
        dbg_hid("undefined report_id %u received\n", n);

    return report;
}

int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
        int interrupt)
{
    struct hid_report_enum *report_enum = hid->report_enum + type;
    struct hid_report *report;
    unsigned int a;
    int rsize, csize = size;
    u8 *cdata = data;
    int ret = 0;

    report = hid_get_report(report_enum, data);
    if (!report)
        goto out;

    if (report_enum->numbered) {
        cdata++;
        csize--;
    }

    rsize = ((report->size - 1) >> 3) + 1;

    if (rsize > HID_MAX_BUFFER_SIZE)
        rsize = HID_MAX_BUFFER_SIZE;

    if (csize < rsize) {
        dbg_hid("report %d is too short, (%d < %d)\n", report->id,
                csize, rsize);
        memset(cdata + csize, 0, rsize - csize);
    }

    if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_report_event)
        hid->hiddev_report_event(hid, report);
    if (hid->claimed & HID_CLAIMED_HIDRAW) {
        ret = hidraw_report_event(hid, data, size);
        if (ret)
            goto out;
    }

    if (hid->claimed != HID_CLAIMED_HIDRAW) {
        for (a = 0; a < report->maxfield; a++)
            hid_input_field(hid, report->field[a], cdata, interrupt);
    }

    if (hid->claimed & HID_CLAIMED_INPUT)
        hidinput_report_event(hid, report);
out:
    return ret;
}
EXPORT_SYMBOL_GPL(hid_report_raw_event);

int hid_input_report(struct hid_device *hid, int type, u8 *data, int size, int interrupt)
{
    struct hid_report_enum *report_enum;
    struct hid_driver *hdrv;
    struct hid_report *report;
    char *buf;
    unsigned int i;
    int ret = 0;

    if (!hid)
        return -ENODEV;

    if (down_trylock(&hid->driver_lock))
        return -EBUSY;

    if (!hid->driver) {
        ret = -ENODEV;
        goto unlock;
    }
    report_enum = hid->report_enum + type;
    hdrv = hid->driver;

    if (!size) {
        dbg_hid("empty report\n");
        ret = -1;
        goto unlock;
    }

    /* Avoid unnecessary overhead if debugfs is disabled */
    if (list_empty(&hid->debug_list))
        goto nomem;

    buf = kmalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);

    if (!buf)
        goto nomem;

    /* dump the report */
    snprintf(buf, HID_DEBUG_BUFSIZE - 1,
            "\nreport (size %u) (%snumbered) = ", size, report_enum->numbered ? "" : "un");
    hid_debug_event(hid, buf);

    for (i = 0; i < size; i++) {
        snprintf(buf, HID_DEBUG_BUFSIZE - 1,
                " %02x", data[i]);
        hid_debug_event(hid, buf);
    }
    hid_debug_event(hid, "\n");
    kfree(buf);

nomem:
    report = hid_get_report(report_enum, data);

    if (!report) {
        ret = -1;
        goto unlock;
    }

    if (hdrv && hdrv->raw_event && hid_match_report(hid, report)) {
        ret = hdrv->raw_event(hid, report, data, size);
        if (ret != 0) {
            ret = ret < 0 ? ret : 0;
            goto unlock;
        }
    }

    ret = hid_report_raw_event(hid, type, data, size, interrupt);

unlock:
    up(&hid->driver_lock);
    return ret;
}
EXPORT_SYMBOL_GPL(hid_input_report);

static bool hid_match_one_id(struct hid_device *hdev,
        const struct hid_device_id *id)
{
    return (id->bus == HID_BUS_ANY || id->bus == hdev->bus) &&
        (id->group == HID_GROUP_ANY || id->group == hdev->group) &&
        (id->vendor == HID_ANY_ID || id->vendor == hdev->vendor) &&
        (id->product == HID_ANY_ID || id->product == hdev->product);
}

const struct hid_device_id *hid_match_id(struct hid_device *hdev,
        const struct hid_device_id *id)
{
    for (; id->bus; id++)
        if (hid_match_one_id(hdev, id))
            return id;

    return NULL;
}

static const struct hid_device_id hid_hiddev_list[] = {
    { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS1) },
    { }
};

static bool hid_hiddev(struct hid_device *hdev)
{
    return !!hid_match_id(hdev, hid_hiddev_list);
}


static ssize_t
read_report_descriptor(struct file *filp, struct kobject *kobj,
        struct bin_attribute *attr,
        char *buf, loff_t off, size_t count)
{
    struct device *dev = container_of(kobj, struct device, kobj);
    struct hid_device *hdev = container_of(dev, struct hid_device, dev);

    if (off >= hdev->rsize)
        return 0;

    if (off + count > hdev->rsize)
        count = hdev->rsize - off;

    memcpy(buf, hdev->rdesc + off, count);

    return count;
}

static struct bin_attribute dev_bin_attr_report_desc = {
    .attr = { .name = "report_descriptor", .mode = 0444 },
    .read = read_report_descriptor,
    .size = HID_MAX_DESCRIPTOR_SIZE,
};

int hid_connect(struct hid_device *hdev, unsigned int connect_mask)
{
    static const char *types[] = { "Device", "Pointer", "Mouse", "Device",
        "Joystick", "Gamepad", "Keyboard", "Keypad",
        "Multi-Axis Controller"
    };
    const char *type, *bus;
    char buf[64];
    unsigned int i;
    int len;
    int ret;

    if (hdev->quirks & HID_QUIRK_HIDDEV_FORCE)
        connect_mask |= (HID_CONNECT_HIDDEV_FORCE | HID_CONNECT_HIDDEV);
    if (hdev->quirks & HID_QUIRK_HIDINPUT_FORCE)
        connect_mask |= HID_CONNECT_HIDINPUT_FORCE;
    if (hdev->bus != BUS_USB)
        connect_mask &= ~HID_CONNECT_HIDDEV;
    if (hid_hiddev(hdev))
        connect_mask |= HID_CONNECT_HIDDEV_FORCE;

    if ((connect_mask & HID_CONNECT_HIDINPUT) && !hidinput_connect(hdev,
                connect_mask & HID_CONNECT_HIDINPUT_FORCE))
        hdev->claimed |= HID_CLAIMED_INPUT;

    if ((connect_mask & HID_CONNECT_HIDDEV) && hdev->hiddev_connect &&
            !hdev->hiddev_connect(hdev,
                connect_mask & HID_CONNECT_HIDDEV_FORCE))
        hdev->claimed |= HID_CLAIMED_HIDDEV;
    if ((connect_mask & HID_CONNECT_HIDRAW) && !hidraw_connect(hdev))
        hdev->claimed |= HID_CLAIMED_HIDRAW;

    /* Drivers with the ->raw_event callback set are not required to connect
     * to any other listener. */
    if (!hdev->claimed && !hdev->driver->raw_event) {
        hid_err(hdev, "device has no listeners, quitting\n");
        return -ENODEV;
    }

    if ((hdev->claimed & HID_CLAIMED_INPUT) &&
            (connect_mask & HID_CONNECT_FF) && hdev->ff_init)
        hdev->ff_init(hdev);

    len = 0;
    if (hdev->claimed & HID_CLAIMED_INPUT)
        len += sprintf(buf + len, "input");
    if (hdev->claimed & HID_CLAIMED_HIDDEV)
        len += sprintf(buf + len, "%shiddev%d", len ? "," : "",
                hdev->minor);
    if (hdev->claimed & HID_CLAIMED_HIDRAW)
        len += sprintf(buf + len, "%shidraw%d", len ? "," : "",
                ((struct hidraw *)hdev->hidraw)->minor);

    type = "Device";
    for (i = 0; i < hdev->maxcollection; i++) {
        struct hid_collection *col = &hdev->collection[i];
        if (col->type == HID_COLLECTION_APPLICATION &&
           (col->usage & HID_USAGE_PAGE) == HID_UP_GENDESK &&
           (col->usage & 0xffff) < ARRAY_SIZE(types)) {
            type = types[col->usage & 0xffff];
            break;
        }
    }

    switch (hdev->bus) {
    case BUS_USB:
        bus = "USB";
        break;
    case BUS_BLUETOOTH:
        bus = "BLUETOOTH";
        break;
    default:
        bus = "<UNKNOWN>";
    }

    ret = device_create_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
    if (ret)
        hid_warn(hdev,
             "can't create sysfs report descriptor attribute err: %d\n", ret);

    hid_info(hdev, "%s: %s HID v%x.%02x %s [%s] on %s\n",
         buf, bus, hdev->version >> 8, hdev->version & 0xff,
         type, hdev->name, hdev->phys);

    return 0;
}
EXPORT_SYMBOL_GPL(hid_connect);

void hid_disconnect(struct hid_device *hdev)
{
    device_remove_bin_file(&hdev->dev, &dev_bin_attr_report_desc);
    if (hdev->claimed & HID_CLAIMED_INPUT)
        hidinput_disconnect(hdev);
    if (hdev->claimed & HID_CLAIMED_HIDDEV)
        hdev->hiddev_disconnect(hdev);
    if (hdev->claimed & HID_CLAIMED_HIDRAW)
        hidraw_disconnect(hdev);
}
EXPORT_SYMBOL_GPL(hid_disconnect);

/*
 * A list of devices for which there is a specialized driver on HID bus.
 *
 * Please note that for multitouch devices (driven by hid-multitouch driver),
 * there is a proper autodetection and autoloading in place (based on presence
 * of HID_DG_CONTACTID), so those devices don't need to be added to this list,
 * as we are doing the right thing in hid_scan_usage().
 */
static const struct hid_device_id hid_have_special_driver[] = {
    { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
    { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
    { HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_RP_649) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ACRUX, 0x0802) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICTRACKPAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_MINI_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_ISO) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_REVB_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AUREAL, USB_DEVICE_ID_AUREAL_W01RN) },
    { HID_USB_DEVICE(USB_VENDOR_ID_BELKIN, USB_DEVICE_ID_FLIP_KVM) },
    { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_BTC, USB_DEVICE_ID_BTC_EMPREX_REMOTE_2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_AK1D) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_4) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
    { HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
    { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PCS_ADAPTOR) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0003) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GREENASIA, 0x0012) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
    { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_1020) },
    { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8086, USB_DEVICE_ID_SENSOR_HUB_09FA) },
    { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_1020) },
    { HID_USB_DEVICE(USB_VENDOR_ID_INTEL_8087, USB_DEVICE_ID_SENSOR_HUB_09FA) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KENSINGTON, USB_DEVICE_ID_KS_SLIMBLADE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KEYTOUCH, USB_DEVICE_ID_KEYTOUCH_IEC) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_ERGO_525V) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_I405X) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_MOUSEPEN_I608X) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M610X) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LABTEC, USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LCPOWER, USB_DEVICE_ID_LCPOWER_LC1000 ) },
#if IS_ENABLED(CONFIG_HID_LENOVO_TPKBD)
    { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_TPKBD) },
#endif
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_HARMONY_PS3) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD_CORD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFP_WHEEL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_DFGT_WHEEL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G27_WHEEL) },
#if IS_ENABLED(CONFIG_HID_LOGITECH_DJ)
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_UNIFYING_RECEIVER_2) },
#endif
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WII_WHEEL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_1) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_3) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_4) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_5) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_6) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_7) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_8) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_9) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_10) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_11) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_12) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_13) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_14) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_15) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_16) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_17) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN_18) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_PKB1700) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
#if IS_ENABLED(CONFIG_HID_ROCCAT)
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRELESS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_SAVU) },
#endif
    { HID_USB_DEVICE(USB_VENDOR_ID_SAITEK, USB_DEVICE_ID_SAITEK_PS1000) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SKYCABLE, USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_BDREMOTE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_NAVIGATION_CONTROLLER) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, USB_DEVICE_ID_SENSOR_HUB_7014) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb323) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb324) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb651) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb653) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb654) },
    { HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb65a) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE_BT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_TIVO, USB_DEVICE_ID_TIVO_SLIDE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED, USB_DEVICE_ID_TOPSEED_CYBERLINK) },
    { HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, USB_DEVICE_ID_TOPSEED2_RF_COMBO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_TWINHAN, USB_DEVICE_ID_TWINHAN_IR_REMOTE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
    { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SMARTJOY_PLUS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_SUPER_JOY_BOX_3) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_DUAL_USB_JOYPAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_3_PRO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_Q_PAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_PID_0038) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SIRIUS_BATTERY_FREE_TABLET) },
    { HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ZYDACRON, USB_DEVICE_ID_ZYDACRON_REMOTE_CONTROL) },

    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_NINTENDO, USB_DEVICE_ID_NINTENDO_WIIMOTE) },
    { }
};

struct hid_dynid {
    struct list_head list;
    struct hid_device_id id;
};

static ssize_t store_new_id(struct device_driver *drv, const char *buf,
        size_t count)
{
    struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
    struct hid_dynid *dynid;
    __u32 bus, vendor, product;
    unsigned long driver_data = 0;
    int ret;

    ret = sscanf(buf, "%x %x %x %lx",
            &bus, &vendor, &product, &driver_data);
    if (ret < 3)
        return -EINVAL;

    dynid = kzalloc(sizeof(*dynid), GFP_KERNEL);
    if (!dynid)
        return -ENOMEM;

    dynid->id.bus = bus;
    dynid->id.group = HID_GROUP_ANY;
    dynid->id.vendor = vendor;
    dynid->id.product = product;
    dynid->id.driver_data = driver_data;

    spin_lock(&hdrv->dyn_lock);
    list_add_tail(&dynid->list, &hdrv->dyn_list);
    spin_unlock(&hdrv->dyn_lock);

    ret = driver_attach(&hdrv->driver);

    return ret ? : count;
}
static DRIVER_ATTR(new_id, S_IWUSR, NULL, store_new_id);

static void hid_free_dynids(struct hid_driver *hdrv)
{
    struct hid_dynid *dynid, *n;

    spin_lock(&hdrv->dyn_lock);
    list_for_each_entry_safe(dynid, n, &hdrv->dyn_list, list) {
        list_del(&dynid->list);
        kfree(dynid);
    }
    spin_unlock(&hdrv->dyn_lock);
}

static const struct hid_device_id *hid_match_device(struct hid_device *hdev,
        struct hid_driver *hdrv)
{
    struct hid_dynid *dynid;

    spin_lock(&hdrv->dyn_lock);
    list_for_each_entry(dynid, &hdrv->dyn_list, list) {
        if (hid_match_one_id(hdev, &dynid->id)) {
            spin_unlock(&hdrv->dyn_lock);
            return &dynid->id;
        }
    }
    spin_unlock(&hdrv->dyn_lock);

    return hid_match_id(hdev, hdrv->id_table);
}

static int hid_bus_match(struct device *dev, struct device_driver *drv)
{
    struct hid_driver *hdrv = container_of(drv, struct hid_driver, driver);
    struct hid_device *hdev = container_of(dev, struct hid_device, dev);

    return hid_match_device(hdev, hdrv) != NULL;
}

static int hid_device_probe(struct device *dev)
{
    struct hid_driver *hdrv = container_of(dev->driver,
            struct hid_driver, driver);
    struct hid_device *hdev = container_of(dev, struct hid_device, dev);
    const struct hid_device_id *id;
    int ret = 0;

    if (down_interruptible(&hdev->driver_lock))
        return -EINTR;

    if (!hdev->driver) {
        id = hid_match_device(hdev, hdrv);
        if (id == NULL) {
            ret = -ENODEV;
            goto unlock;
        }

        hdev->driver = hdrv;
        if (hdrv->probe) {
            ret = hdrv->probe(hdev, id);
        } else { /* default probe */
            ret = hid_open_report(hdev);
            if (!ret)
                ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
        }
        if (ret) {
            hid_close_report(hdev);
            hdev->driver = NULL;
        }
    }
unlock:
    up(&hdev->driver_lock);
    return ret;
}

static int hid_device_remove(struct device *dev)
{
    struct hid_device *hdev = container_of(dev, struct hid_device, dev);
    struct hid_driver *hdrv;

    if (down_interruptible(&hdev->driver_lock))
        return -EINTR;

    hdrv = hdev->driver;
    if (hdrv) {
        if (hdrv->remove)
            hdrv->remove(hdev);
        else /* default remove */
            hid_hw_stop(hdev);
        hid_close_report(hdev);
        hdev->driver = NULL;
    }

    up(&hdev->driver_lock);
    return 0;
}

static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
                 char *buf)
{
    struct hid_device *hdev = container_of(dev, struct hid_device, dev);
    int len;

    len = snprintf(buf, PAGE_SIZE, "hid:b%04Xg%04Xv%08Xp%08X\n",
               hdev->bus, hdev->group, hdev->vendor, hdev->product);

    return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}

static struct device_attribute hid_dev_attrs[] = {
    __ATTR_RO(modalias),
    __ATTR_NULL,
};

static int hid_uevent(struct device *dev, struct kobj_uevent_env *env)
{
    struct hid_device *hdev = container_of(dev, struct hid_device, dev);

    if (add_uevent_var(env, "HID_ID=%04X:%08X:%08X",
            hdev->bus, hdev->vendor, hdev->product))
        return -ENOMEM;

    if (add_uevent_var(env, "HID_NAME=%s", hdev->name))
        return -ENOMEM;

    if (add_uevent_var(env, "HID_PHYS=%s", hdev->phys))
        return -ENOMEM;

    if (add_uevent_var(env, "HID_UNIQ=%s", hdev->uniq))
        return -ENOMEM;

    if (add_uevent_var(env, "MODALIAS=hid:b%04Xg%04Xv%08Xp%08X",
               hdev->bus, hdev->group, hdev->vendor, hdev->product))
        return -ENOMEM;

    return 0;
}

static struct bus_type hid_bus_type = {
    .name       = "hid",
    .dev_attrs  = hid_dev_attrs,
    .match      = hid_bus_match,
    .probe      = hid_device_probe,
    .remove     = hid_device_remove,
    .uevent     = hid_uevent,
};

/* a list of devices that shouldn't be handled by HID core at all */
static const struct hid_device_id hid_ignore_list[] = {
    { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_FLAIR) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ACECAD, USB_DEVICE_ID_ACECAD_302) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ADS_TECH, USB_DEVICE_ID_ADS_TECH_RADIO_SI470X) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_01) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_10) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_20) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_21) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_22) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_23) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
    { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
    { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
    { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CMEDIA, USB_DEVICE_ID_CM109) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_HIDCOM) },
    { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_ULTRAMOUSE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DEALEXTREAME, USB_DEVICE_ID_DEALEXTREAME_RADIO_SI4701) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
    { HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0001) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0002) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, 0x0004) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_4_PHIDGETSERVO_30) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_1_PHIDGETSERVO_30) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_0_4_IF_KIT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_16_16_IF_KIT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_8_8_8_IF_KIT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_7_IF_KIT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_0_8_8_IF_KIT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GLAB, USB_DEVICE_ID_PHIDGET_MOTORCONTROL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_SUPER_Q2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_GOGOPEN) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GOTOP, USB_DEVICE_ID_PENPOWER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GRETAGMACBETH, USB_DEVICE_ID_GRETAGMACBETH_HUEY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_POWERMATE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_SOUNDKNOB) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GRIFFIN, USB_DEVICE_ID_RADIOSHARK) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_90) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_100) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_101) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_103) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_104) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_105) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_106) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_107) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_108) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_200) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_201) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_202) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_203) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_204) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_205) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_206) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_207) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_300) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_301) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_302) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_303) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_304) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_305) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_306) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_307) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_308) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_309) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_400) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_401) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_402) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_403) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_404) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_405) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_500) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_501) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_502) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_503) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_504) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1000) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1001) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1002) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1003) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1004) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1005) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1006) },
    { HID_USB_DEVICE(USB_VENDOR_ID_GTCO, USB_DEVICE_ID_GTCO_1007) },
    { HID_USB_DEVICE(USB_VENDOR_ID_IMATION, USB_DEVICE_ID_DISC_STAKKA) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KBGEAR, USB_DEVICE_ID_KBGEAR_JAMSTUDIO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KWORLD, USB_DEVICE_ID_KWORLD_RADIO_FM700) },
    { HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_GPEN_560) },
    { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_KYE, 0x0058) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_CASSY2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POCKETCASSY2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOBILECASSY2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYVOLTAGE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYCURRENT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTIME) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYTEMPERATURE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MICROCASSYPH) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_JWM) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_DMMP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIC) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_UMIB) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_XRAY2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_VIDEOCOM) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOTOR) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_COM3LAB) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_TELEPORT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_NETWORKANALYSER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_POWERCONTROL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MACHINETEST) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MOSTANALYSER2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_ABSESP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_AUTODATABUS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_MCT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HYBRID) },
    { HID_USB_DEVICE(USB_VENDOR_ID_LD, USB_DEVICE_ID_LD_HEATCONTROL) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MADCATZ, USB_DEVICE_ID_MADCATZ_BEATPAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1024LS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MCC, USB_DEVICE_ID_MCC_PMD1208LS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT1) },
    { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICKIT2) },
    { HID_USB_DEVICE(USB_VENDOR_ID_NATIONAL_SEMICONDUCTOR, USB_DEVICE_ID_N_S_HARMONY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 20) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 30) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 100) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 108) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 118) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 200) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 300) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 400) },
    { HID_USB_DEVICE(USB_VENDOR_ID_ONTRAK, USB_DEVICE_ID_ONTRAK_ADU100 + 500) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0001) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0002) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0003) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
    { HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
    { HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
#if defined(CONFIG_MOUSE_SYNAPTICS_USB) || defined(CONFIG_MOUSE_SYNAPTICS_USB_MODULE)
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_INT_TP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_CPAD) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_STICK) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_COMP_TP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_WTP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_DPAD) },
#endif
    { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
    { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_CYCLOPS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LCSPEC) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WACOM, HID_ANY_ID) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_4_PHIDGETSERVO_20) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_1_PHIDGETSERVO_20) },
    { HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP, USB_DEVICE_ID_8_8_4_IF_KIT) },
    { HID_USB_DEVICE(USB_VENDOR_ID_YEALINK, USB_DEVICE_ID_YEALINK_P1K_P4K_B2K) },
    { }
};

static const struct hid_device_id hid_mouse_ignore_list[] = {
    /* appletouch driver */
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER3_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER4_HF_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING2_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING3_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING4A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING5A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING6A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ANSI) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_ISO) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_WELLSPRING7A_JIS) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY) },
    { HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY) },
    { }
};

static bool hid_ignore(struct hid_device *hdev)
{
    switch (hdev->vendor) {
    case USB_VENDOR_ID_CODEMERCS:
        /* ignore all Code Mercenaries IOWarrior devices */
        if (hdev->product >= USB_DEVICE_ID_CODEMERCS_IOW_FIRST &&
                hdev->product <= USB_DEVICE_ID_CODEMERCS_IOW_LAST)
            return true;
        break;
    case USB_VENDOR_ID_LOGITECH:
        if (hdev->product >= USB_DEVICE_ID_LOGITECH_HARMONY_FIRST &&
                hdev->product <= USB_DEVICE_ID_LOGITECH_HARMONY_LAST)
            return true;
        /*
         * The Keene FM transmitter USB device has the same USB ID as
         * the Logitech AudioHub Speaker, but it should ignore the hid.
         * Check if the name is that of the Keene device.
         * For reference: the name of the AudioHub is
         * "HOLTEK  AudioHub Speaker".
         */
        if (hdev->product == USB_DEVICE_ID_LOGITECH_AUDIOHUB &&
            !strcmp(hdev->name, "HOLTEK  B-LINK USB Audio  "))
                return true;
        break;
    case USB_VENDOR_ID_SOUNDGRAPH:
        if (hdev->product >= USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST &&
            hdev->product <= USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST)
            return true;
        break;
    case USB_VENDOR_ID_HANWANG:
        if (hdev->product >= USB_DEVICE_ID_HANWANG_TABLET_FIRST &&
            hdev->product <= USB_DEVICE_ID_HANWANG_TABLET_LAST)
            return true;
        break;
    case USB_VENDOR_ID_JESS:
        if (hdev->product == USB_DEVICE_ID_JESS_YUREX &&
                hdev->type == HID_TYPE_USBNONE)
            return true;
    break;
    }

    if (hdev->type == HID_TYPE_USBMOUSE &&
            hid_match_id(hdev, hid_mouse_ignore_list))
        return true;

    return !!hid_match_id(hdev, hid_ignore_list);
}

int hid_add_device(struct hid_device *hdev)
{
    static atomic_t id = ATOMIC_INIT(0);
    int ret;

    if (WARN_ON(hdev->status & HID_STAT_ADDED))
        return -EBUSY;

    /* we need to kill them here, otherwise they will stay allocated to
     * wait for coming driver */
    if (!(hdev->quirks & HID_QUIRK_NO_IGNORE)
            && (hid_ignore(hdev) || (hdev->quirks & HID_QUIRK_IGNORE)))
        return -ENODEV;

    /*
     * Read the device report descriptor once and use as template
     * for the driver-specific modifications.
     */
    ret = hdev->ll_driver->parse(hdev);
    if (ret)
        return ret;
    if (!hdev->dev_rdesc)
        return -ENODEV;

    /*
     * Scan generic devices for group information
     */
    if (hid_ignore_special_drivers ||
        !hid_match_id(hdev, hid_have_special_driver)) {
        ret = hid_scan_report(hdev);
        if (ret)
            hid_warn(hdev, "bad device descriptor (%d)\n", ret);
    }

    /* XXX hack, any other cleaner solution after the driver core
     * is converted to allow more than 20 bytes as the device name? */
    dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus,
             hdev->vendor, hdev->product, atomic_inc_return(&id));

    hid_debug_register(hdev, dev_name(&hdev->dev));
    ret = device_add(&hdev->dev);
    if (!ret)
        hdev->status |= HID_STAT_ADDED;
    else
        hid_debug_unregister(hdev);

    return ret;
}
EXPORT_SYMBOL_GPL(hid_add_device);

struct hid_device *hid_allocate_device(void)
{
    struct hid_device *hdev;
    int ret = -ENOMEM;

    hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
    if (hdev == NULL)
        return ERR_PTR(ret);

    device_initialize(&hdev->dev);
    hdev->dev.release = hid_device_release;
    hdev->dev.bus = &hid_bus_type;

    hid_close_report(hdev);

    init_waitqueue_head(&hdev->debug_wait);
    INIT_LIST_HEAD(&hdev->debug_list);
    sema_init(&hdev->driver_lock, 1);

    return hdev;
}
EXPORT_SYMBOL_GPL(hid_allocate_device);

static void hid_remove_device(struct hid_device *hdev)
{
    if (hdev->status & HID_STAT_ADDED) {
        device_del(&hdev->dev);
        hid_debug_unregister(hdev);
        hdev->status &= ~HID_STAT_ADDED;
    }
    kfree(hdev->dev_rdesc);
    hdev->dev_rdesc = NULL;
    hdev->dev_rsize = 0;
}

void hid_destroy_device(struct hid_device *hdev)
{
    hid_remove_device(hdev);
    put_device(&hdev->dev);
}
EXPORT_SYMBOL_GPL(hid_destroy_device);

int __hid_register_driver(struct hid_driver *hdrv, struct module *owner,
        const char *mod_name)
{
    int ret;

    hdrv->driver.name = hdrv->name;
    hdrv->driver.bus = &hid_bus_type;
    hdrv->driver.owner = owner;
    hdrv->driver.mod_name = mod_name;

    INIT_LIST_HEAD(&hdrv->dyn_list);
    spin_lock_init(&hdrv->dyn_lock);

    ret = driver_register(&hdrv->driver);
    if (ret)
        return ret;

    ret = driver_create_file(&hdrv->driver, &driver_attr_new_id);
    if (ret)
        driver_unregister(&hdrv->driver);

    return ret;
}
EXPORT_SYMBOL_GPL(__hid_register_driver);

void hid_unregister_driver(struct hid_driver *hdrv)
{
    driver_remove_file(&hdrv->driver, &driver_attr_new_id);
    driver_unregister(&hdrv->driver);
    hid_free_dynids(hdrv);
}
EXPORT_SYMBOL_GPL(hid_unregister_driver);

int hid_check_keys_pressed(struct hid_device *hid)
{
    struct hid_input *hidinput;
    int i;

    if (!(hid->claimed & HID_CLAIMED_INPUT))
        return 0;

    list_for_each_entry(hidinput, &hid->inputs, list) {
        for (i = 0; i < BITS_TO_LONGS(KEY_MAX); i++)
            if (hidinput->input->key[i])
                return 1;
    }

    return 0;
}

EXPORT_SYMBOL_GPL(hid_check_keys_pressed);

static int __init hid_init(void)
{
    int ret;

    if (hid_debug)
        pr_warn("hid_debug is now used solely for parser and driver debugging.\n"
            "debugfs is now used for inspecting the device (report descriptor, reports)\n");

    ret = bus_register(&hid_bus_type);
    if (ret) {
        pr_err("can't register hid bus\n");
        goto err;
    }

    ret = hidraw_init();
    if (ret)
        goto err_bus;

    hid_debug_init();

    return 0;
err_bus:
    bus_unregister(&hid_bus_type);
err:
    return ret;
}

static void __exit hid_exit(void)
{
    hid_debug_exit();
    hidraw_exit();
    bus_unregister(&hid_bus_type);
}

module_init(hid_init);
module_exit(hid_exit);

MODULE_AUTHOR("Andreas Gal");
MODULE_AUTHOR("Vojtech Pavlik");
MODULE_AUTHOR("Jiri Kosina");
MODULE_LICENSE(DRIVER_LICENSE);