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 /* SPDX-License-Identifier: GPL-2.0-or-later */
 /*
  *  Copyright (c) 1999 Andreas Gal
  *  Copyright (c) 2000-2001 Vojtech Pavlik
  *  Copyright (c) 2006-2007 Jiri Kosina
  */
 /*
  *
  * Should you need to contact me, the author, you can do so either by
  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  */
 #ifndef __HID_H
 #define __HID_H
 
 
 #include <linux/bitops.h>
 #include <linux/types.h>
 #include <linux/slab.h>
 #include <linux/list.h>
 #include <linux/mod_devicetable.h> /* hid_device_id */
 #include <linux/timer.h>
 #include <linux/workqueue.h>
 #include <linux/input.h>
 #include <linux/semaphore.h>
 #include <linux/mutex.h>
 #include <linux/power_supply.h>
 #include <uapi/linux/hid.h>
 
 /*
  * We parse each description item into this structure. Short items data
  * values are expanded to 32-bit signed int, long items contain a pointer
  * into the data area.
  */
 
 struct hid_item {
     unsigned  format;
     __u8      size;
     __u8      type;
     __u8      tag;
     union {
         __u8   u8;
         __s8   s8;
         __u16  u16;
         __s16  s16;
         __u32  u32;
         __s32  s32;
         __u8  *longdata;
     } data;
 };
 
 /*
  * HID report item format
  */
 
 #define HID_ITEM_FORMAT_SHORT   0
 #define HID_ITEM_FORMAT_LONG    1
 
 /*
  * Special tag indicating long items
  */
 
 #define HID_ITEM_TAG_LONG   15
 
 /*
  * HID report descriptor item type (prefix bit 2,3)
  */
 
 #define HID_ITEM_TYPE_MAIN      0
 #define HID_ITEM_TYPE_GLOBAL        1
 #define HID_ITEM_TYPE_LOCAL     2
 #define HID_ITEM_TYPE_RESERVED      3
 
 /*
  * HID report descriptor main item tags
  */
 
 #define HID_MAIN_ITEM_TAG_INPUT         8
 #define HID_MAIN_ITEM_TAG_OUTPUT        9
 #define HID_MAIN_ITEM_TAG_FEATURE       11
 #define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION  10
 #define HID_MAIN_ITEM_TAG_END_COLLECTION    12
 
 /*
  * HID report descriptor main item contents
  */
 
 #define HID_MAIN_ITEM_CONSTANT      0x001
 #define HID_MAIN_ITEM_VARIABLE      0x002
 #define HID_MAIN_ITEM_RELATIVE      0x004
 #define HID_MAIN_ITEM_WRAP      0x008
 #define HID_MAIN_ITEM_NONLINEAR     0x010
 #define HID_MAIN_ITEM_NO_PREFERRED  0x020
 #define HID_MAIN_ITEM_NULL_STATE    0x040
 #define HID_MAIN_ITEM_VOLATILE      0x080
 #define HID_MAIN_ITEM_BUFFERED_BYTE 0x100
 
 /*
  * HID report descriptor collection item types
  */
 
 #define HID_COLLECTION_PHYSICAL     0
 #define HID_COLLECTION_APPLICATION  1
 #define HID_COLLECTION_LOGICAL      2
 #define HID_COLLECTION_NAMED_ARRAY  4
 
 /*
  * HID report descriptor global item tags
  */
 
 #define HID_GLOBAL_ITEM_TAG_USAGE_PAGE      0
 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MINIMUM 1
 #define HID_GLOBAL_ITEM_TAG_LOGICAL_MAXIMUM 2
 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MINIMUM    3
 #define HID_GLOBAL_ITEM_TAG_PHYSICAL_MAXIMUM    4
 #define HID_GLOBAL_ITEM_TAG_UNIT_EXPONENT   5
 #define HID_GLOBAL_ITEM_TAG_UNIT        6
 #define HID_GLOBAL_ITEM_TAG_REPORT_SIZE     7
 #define HID_GLOBAL_ITEM_TAG_REPORT_ID       8
 #define HID_GLOBAL_ITEM_TAG_REPORT_COUNT    9
 #define HID_GLOBAL_ITEM_TAG_PUSH        10
 #define HID_GLOBAL_ITEM_TAG_POP         11
 
 /*
  * HID report descriptor local item tags
  */
 
 #define HID_LOCAL_ITEM_TAG_USAGE        0
 #define HID_LOCAL_ITEM_TAG_USAGE_MINIMUM    1
 #define HID_LOCAL_ITEM_TAG_USAGE_MAXIMUM    2
 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_INDEX 3
 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MINIMUM   4
 #define HID_LOCAL_ITEM_TAG_DESIGNATOR_MAXIMUM   5
 #define HID_LOCAL_ITEM_TAG_STRING_INDEX     7
 #define HID_LOCAL_ITEM_TAG_STRING_MINIMUM   8
 #define HID_LOCAL_ITEM_TAG_STRING_MAXIMUM   9
 #define HID_LOCAL_ITEM_TAG_DELIMITER        10
 
 /*
  * HID usage tables
  */
 
 #define HID_USAGE_PAGE      0xffff0000
 
 #define HID_UP_UNDEFINED    0x00000000
 #define HID_UP_GENDESK      0x00010000
 #define HID_UP_SIMULATION   0x00020000
 #define HID_UP_GENDEVCTRLS  0x00060000
 #define HID_UP_KEYBOARD     0x00070000
 #define HID_UP_LED      0x00080000
 #define HID_UP_BUTTON       0x00090000
 #define HID_UP_ORDINAL      0x000a0000
 #define HID_UP_TELEPHONY    0x000b0000
 #define HID_UP_CONSUMER     0x000c0000
 #define HID_UP_DIGITIZER    0x000d0000
 #define HID_UP_PID      0x000f0000
 #define HID_UP_BATTERY      0x00850000
 #define HID_UP_HPVENDOR         0xff7f0000
 #define HID_UP_HPVENDOR2        0xff010000
 #define HID_UP_MSVENDOR     0xff000000
 #define HID_UP_CUSTOM       0x00ff0000
 #define HID_UP_LOGIVENDOR   0xffbc0000
 #define HID_UP_LOGIVENDOR2   0xff090000
 #define HID_UP_LOGIVENDOR3   0xff430000
 #define HID_UP_LNVENDOR     0xffa00000
 #define HID_UP_SENSOR       0x00200000
 #define HID_UP_ASUSVENDOR   0xff310000
 #define HID_UP_GOOGLEVENDOR 0xffd10000
 
 #define HID_USAGE       0x0000ffff
 
 #define HID_GD_POINTER      0x00010001
 #define HID_GD_MOUSE        0x00010002
 #define HID_GD_JOYSTICK     0x00010004
 #define HID_GD_GAMEPAD      0x00010005
 #define HID_GD_KEYBOARD     0x00010006
 #define HID_GD_KEYPAD       0x00010007
 #define HID_GD_MULTIAXIS    0x00010008
 /*
  * Microsoft Win8 Wireless Radio Controls extensions CA, see:
  * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf
  */
 #define HID_GD_WIRELESS_RADIO_CTLS  0x0001000c
 /*
  * System Multi-Axis, see:
  * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt
  */
 #define HID_GD_SYSTEM_MULTIAXIS 0x0001000e
 
 #define HID_GD_X        0x00010030
 #define HID_GD_Y        0x00010031
 #define HID_GD_Z        0x00010032
 #define HID_GD_RX       0x00010033
 #define HID_GD_RY       0x00010034
 #define HID_GD_RZ       0x00010035
 #define HID_GD_SLIDER       0x00010036
 #define HID_GD_DIAL     0x00010037
 #define HID_GD_WHEEL        0x00010038
 #define HID_GD_HATSWITCH    0x00010039
 #define HID_GD_BUFFER       0x0001003a
 #define HID_GD_BYTECOUNT    0x0001003b
 #define HID_GD_MOTION       0x0001003c
 #define HID_GD_START        0x0001003d
 #define HID_GD_SELECT       0x0001003e
 #define HID_GD_VX       0x00010040
 #define HID_GD_VY       0x00010041
 #define HID_GD_VZ       0x00010042
 #define HID_GD_VBRX     0x00010043
 #define HID_GD_VBRY     0x00010044
 #define HID_GD_VBRZ     0x00010045
 #define HID_GD_VNO      0x00010046
 #define HID_GD_FEATURE      0x00010047
 #define HID_GD_RESOLUTION_MULTIPLIER    0x00010048
 #define HID_GD_SYSTEM_CONTROL   0x00010080
 #define HID_GD_UP       0x00010090
 #define HID_GD_DOWN     0x00010091
 #define HID_GD_RIGHT        0x00010092
 #define HID_GD_LEFT     0x00010093
 /* Microsoft Win8 Wireless Radio Controls CA usage codes */
 #define HID_GD_RFKILL_BTN   0x000100c6
 #define HID_GD_RFKILL_LED   0x000100c7
 #define HID_GD_RFKILL_SWITCH    0x000100c8
 
 #define HID_DC_BATTERYSTRENGTH  0x00060020
 
 #define HID_CP_CONSUMER_CONTROL 0x000c0001
 #define HID_CP_AC_PAN       0x000c0238
 
 #define HID_DG_DIGITIZER    0x000d0001
 #define HID_DG_PEN      0x000d0002
 #define HID_DG_LIGHTPEN     0x000d0003
 #define HID_DG_TOUCHSCREEN  0x000d0004
 #define HID_DG_TOUCHPAD     0x000d0005
 #define HID_DG_WHITEBOARD   0x000d0006
 #define HID_DG_STYLUS       0x000d0020
 #define HID_DG_PUCK     0x000d0021
 #define HID_DG_FINGER       0x000d0022
 #define HID_DG_TIPPRESSURE  0x000d0030
 #define HID_DG_BARRELPRESSURE   0x000d0031
 #define HID_DG_INRANGE      0x000d0032
 #define HID_DG_TOUCH        0x000d0033
 #define HID_DG_UNTOUCH      0x000d0034
 #define HID_DG_TAP      0x000d0035
 #define HID_DG_TRANSDUCER_INDEX 0x000d0038
 #define HID_DG_TABLETFUNCTIONKEY    0x000d0039
 #define HID_DG_PROGRAMCHANGEKEY 0x000d003a
 #define HID_DG_BATTERYSTRENGTH  0x000d003b
 #define HID_DG_INVERT       0x000d003c
 #define HID_DG_TILT_X       0x000d003d
 #define HID_DG_TILT_Y       0x000d003e
 #define HID_DG_TWIST        0x000d0041
 #define HID_DG_TIPSWITCH    0x000d0042
 #define HID_DG_TIPSWITCH2   0x000d0043
 #define HID_DG_BARRELSWITCH 0x000d0044
 #define HID_DG_ERASER       0x000d0045
 #define HID_DG_TABLETPICK   0x000d0046
 #define HID_DG_PEN_COLOR            0x000d005c
 #define HID_DG_PEN_LINE_WIDTH           0x000d005e
 #define HID_DG_PEN_LINE_STYLE           0x000d0070
 #define HID_DG_PEN_LINE_STYLE_INK       0x000d0072
 #define HID_DG_PEN_LINE_STYLE_PENCIL        0x000d0073
 #define HID_DG_PEN_LINE_STYLE_HIGHLIGHTER   0x000d0074
 #define HID_DG_PEN_LINE_STYLE_CHISEL_MARKER 0x000d0075
 #define HID_DG_PEN_LINE_STYLE_BRUSH     0x000d0076
 #define HID_DG_PEN_LINE_STYLE_NO_PREFERENCE 0x000d0077
 
 #define HID_CP_CONSUMERCONTROL  0x000c0001
 #define HID_CP_NUMERICKEYPAD    0x000c0002
 #define HID_CP_PROGRAMMABLEBUTTONS  0x000c0003
 #define HID_CP_MICROPHONE   0x000c0004
 #define HID_CP_HEADPHONE    0x000c0005
 #define HID_CP_GRAPHICEQUALIZER 0x000c0006
 #define HID_CP_FUNCTIONBUTTONS  0x000c0036
 #define HID_CP_SELECTION    0x000c0080
 #define HID_CP_MEDIASELECTION   0x000c0087
 #define HID_CP_SELECTDISC   0x000c00ba
 #define HID_CP_VOLUMEUP     0x000c00e9
 #define HID_CP_VOLUMEDOWN   0x000c00ea
 #define HID_CP_PLAYBACKSPEED    0x000c00f1
 #define HID_CP_PROXIMITY    0x000c0109
 #define HID_CP_SPEAKERSYSTEM    0x000c0160
 #define HID_CP_CHANNELLEFT  0x000c0161
 #define HID_CP_CHANNELRIGHT 0x000c0162
 #define HID_CP_CHANNELCENTER    0x000c0163
 #define HID_CP_CHANNELFRONT 0x000c0164
 #define HID_CP_CHANNELCENTERFRONT   0x000c0165
 #define HID_CP_CHANNELSIDE  0x000c0166
 #define HID_CP_CHANNELSURROUND  0x000c0167
 #define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT   0x000c0168
 #define HID_CP_CHANNELTOP   0x000c0169
 #define HID_CP_CHANNELUNKNOWN   0x000c016a
 #define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180
 #define HID_CP_GENERICGUIAPPLICATIONCONTROLS    0x000c0200
 
 #define HID_DG_DEVICECONFIG 0x000d000e
 #define HID_DG_DEVICESETTINGS   0x000d0023
 #define HID_DG_AZIMUTH      0x000d003f
 #define HID_DG_CONFIDENCE   0x000d0047
 #define HID_DG_WIDTH        0x000d0048
 #define HID_DG_HEIGHT       0x000d0049
 #define HID_DG_CONTACTID    0x000d0051
 #define HID_DG_INPUTMODE    0x000d0052
 #define HID_DG_DEVICEINDEX  0x000d0053
 #define HID_DG_CONTACTCOUNT 0x000d0054
 #define HID_DG_CONTACTMAX   0x000d0055
 #define HID_DG_SCANTIME     0x000d0056
 #define HID_DG_SURFACESWITCH    0x000d0057
 #define HID_DG_BUTTONSWITCH 0x000d0058
 #define HID_DG_BUTTONTYPE   0x000d0059
 #define HID_DG_BARRELSWITCH2    0x000d005a
 #define HID_DG_TOOLSERIALNUMBER 0x000d005b
 #define HID_DG_LATENCYMODE  0x000d0060
 
 #define HID_BAT_ABSOLUTESTATEOFCHARGE   0x00850065
 
 #define HID_VD_ASUS_CUSTOM_MEDIA_KEYS   0xff310076
 /*
  * HID report types --- Ouch! HID spec says 1 2 3!
  */
 
 #define HID_INPUT_REPORT    0
 #define HID_OUTPUT_REPORT   1
 #define HID_FEATURE_REPORT  2
 
 #define HID_REPORT_TYPES    3
 
 /*
  * HID connect requests
  */
 
 #define HID_CONNECT_HIDINPUT        BIT(0)
 #define HID_CONNECT_HIDINPUT_FORCE  BIT(1)
 #define HID_CONNECT_HIDRAW      BIT(2)
 #define HID_CONNECT_HIDDEV      BIT(3)
 #define HID_CONNECT_HIDDEV_FORCE    BIT(4)
 #define HID_CONNECT_FF          BIT(5)
 #define HID_CONNECT_DRIVER      BIT(6)
 #define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
         HID_CONNECT_HIDDEV|HID_CONNECT_FF)
 
 /*
  * HID device quirks.
  */
 
 /*
  * Increase this if you need to configure more HID quirks at module load time
  */
 #define MAX_USBHID_BOOT_QUIRKS 4
 
 /* BIT(0) reserved for backward compatibility, was HID_QUIRK_INVERT */
 #define HID_QUIRK_NOTOUCH           BIT(1)
 #define HID_QUIRK_IGNORE            BIT(2)
 #define HID_QUIRK_NOGET             BIT(3)
 #define HID_QUIRK_HIDDEV_FORCE          BIT(4)
 #define HID_QUIRK_BADPAD            BIT(5)
 #define HID_QUIRK_MULTI_INPUT           BIT(6)
 #define HID_QUIRK_HIDINPUT_FORCE        BIT(7)
 /* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */
 /* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
 #define HID_QUIRK_ALWAYS_POLL           BIT(10)
 #define HID_QUIRK_INPUT_PER_APP         BIT(11)
 #define HID_QUIRK_X_INVERT          BIT(12)
 #define HID_QUIRK_Y_INVERT          BIT(13)
 #define HID_QUIRK_SKIP_OUTPUT_REPORTS       BIT(16)
 #define HID_QUIRK_SKIP_OUTPUT_REPORT_ID     BIT(17)
 #define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP  BIT(18)
 #define HID_QUIRK_HAVE_SPECIAL_DRIVER       BIT(19)
 #define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE  BIT(20)
 #define HID_QUIRK_FULLSPEED_INTERVAL        BIT(28)
 #define HID_QUIRK_NO_INIT_REPORTS       BIT(29)
 #define HID_QUIRK_NO_IGNORE         BIT(30)
 #define HID_QUIRK_NO_INPUT_SYNC         BIT(31)
 
 /*
  * HID device groups
  *
  * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h
  * and has a value of 0x0000
  */
 #define HID_GROUP_GENERIC           0x0001
 #define HID_GROUP_MULTITOUCH            0x0002
 #define HID_GROUP_SENSOR_HUB            0x0003
 #define HID_GROUP_MULTITOUCH_WIN_8      0x0004
 
 /*
  * Vendor specific HID device groups
  */
 #define HID_GROUP_RMI               0x0100
 #define HID_GROUP_WACOM             0x0101
 #define HID_GROUP_LOGITECH_DJ_DEVICE        0x0102
 #define HID_GROUP_STEAM             0x0103
 #define HID_GROUP_LOGITECH_27MHZ_DEVICE     0x0104
 #define HID_GROUP_VIVALDI           0x0105
 
 /*
  * HID protocol status
  */
 #define HID_REPORT_PROTOCOL 1
 #define HID_BOOT_PROTOCOL   0
 
 /*
  * This is the global environment of the parser. This information is
  * persistent for main-items. The global environment can be saved and
  * restored with PUSH/POP statements.
  */
 
 struct hid_global {
     unsigned usage_page;
     __s32    logical_minimum;
     __s32    logical_maximum;
     __s32    physical_minimum;
     __s32    physical_maximum;
     __s32    unit_exponent;
     unsigned unit;
     unsigned report_id;
     unsigned report_size;
     unsigned report_count;
 };
 
 /*
  * This is the local environment. It is persistent up the next main-item.
  */
 
 #define HID_MAX_USAGES          12288
 #define HID_DEFAULT_NUM_COLLECTIONS 16
 
 struct hid_local {
     unsigned usage[HID_MAX_USAGES]; /* usage array */
     u8 usage_size[HID_MAX_USAGES]; /* usage size array */
     unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
     unsigned usage_index;
     unsigned usage_minimum;
     unsigned delimiter_depth;
     unsigned delimiter_branch;
 };
 
 /*
  * This is the collection stack. We climb up the stack to determine
  * application and function of each field.
  */
 
 struct hid_collection {
     int parent_idx; /* device->collection */
     unsigned type;
     unsigned usage;
     unsigned level;
 };
 
 struct hid_usage {
     unsigned  hid;          /* hid usage code */
     unsigned  collection_index; /* index into collection array */
     unsigned  usage_index;      /* index into usage array */
     __s8      resolution_multiplier;/* Effective Resolution Multiplier
                        (HUT v1.12, 4.3.1), default: 1 */
     /* hidinput data */
     __s8      wheel_factor;     /* 120/resolution_multiplier */
     __u16     code;         /* input driver code */
     __u8      type;         /* input driver type */
     __s8      hat_min;      /* hat switch fun */
     __s8      hat_max;      /* ditto */
     __s8      hat_dir;      /* ditto */
     __s16     wheel_accumulated;    /* hi-res wheel */
 };
 
 struct hid_input;
 
 struct hid_field {
     unsigned  physical;     /* physical usage for this field */
     unsigned  logical;      /* logical usage for this field */
     unsigned  application;      /* application usage for this field */
     struct hid_usage *usage;    /* usage table for this function */
     unsigned  maxusage;     /* maximum usage index */
     unsigned  flags;        /* main-item flags (i.e. volatile,array,constant) */
     unsigned  report_offset;    /* bit offset in the report */
     unsigned  report_size;      /* size of this field in the report */
     unsigned  report_count;     /* number of this field in the report */
     unsigned  report_type;      /* (input,output,feature) */
     __s32    *value;        /* last known value(s) */
     __s32    *new_value;        /* newly read value(s) */
     __s32    *usages_priorities;    /* priority of each usage when reading the report
                      * bits 8-16 are reserved for hid-input usage
                      */
     __s32     logical_minimum;
     __s32     logical_maximum;
     __s32     physical_minimum;
     __s32     physical_maximum;
     __s32     unit_exponent;
     unsigned  unit;
     bool      ignored;      /* this field is ignored in this event */
     struct hid_report *report;  /* associated report */
     unsigned index;         /* index into report->field[] */
     /* hidinput data */
     struct hid_input *hidinput; /* associated input structure */
     __u16 dpad;         /* dpad input code */
     unsigned int slot_idx;      /* slot index in a report */
 };
 
 #define HID_MAX_FIELDS 256
 
 struct hid_field_entry {
     struct list_head list;
     struct hid_field *field;
     unsigned int index;
     __s32 priority;
 };
 
 struct hid_report {
     struct list_head list;
     struct list_head hidinput_list;
     struct list_head field_entry_list;      /* ordered list of input fields */
     unsigned int id;                /* id of this report */
     unsigned int type;              /* report type */
     unsigned int application;           /* application usage for this report */
     struct hid_field *field[HID_MAX_FIELDS];    /* fields of the report */
     struct hid_field_entry *field_entries;      /* allocated memory of input field_entry */
     unsigned maxfield;              /* maximum valid field index */
     unsigned size;                  /* size of the report (bits) */
     struct hid_device *device;          /* associated device */
 
     /* tool related state */
     bool tool_active;               /* whether the current tool is active */
     unsigned int tool;              /* BTN_TOOL_* */
 };
 
 #define HID_MAX_IDS 256
 
 struct hid_report_enum {
     unsigned numbered;
     struct list_head report_list;
     struct hid_report *report_id_hash[HID_MAX_IDS];
 };
 
 #define HID_MIN_BUFFER_SIZE 64      /* make sure there is at least a packet size of space */
 #define HID_MAX_BUFFER_SIZE 16384       /* 16kb */
 #define HID_CONTROL_FIFO_SIZE   256     /* to init devices with >100 reports */
 #define HID_OUTPUT_FIFO_SIZE    64
 
 struct hid_control_fifo {
     unsigned char dir;
     struct hid_report *report;
     char *raw_report;
 };
 
 struct hid_output_fifo {
     struct hid_report *report;
     char *raw_report;
 };
 
 #define HID_CLAIMED_INPUT   BIT(0)
 #define HID_CLAIMED_HIDDEV  BIT(1)
 #define HID_CLAIMED_HIDRAW  BIT(2)
 #define HID_CLAIMED_DRIVER  BIT(3)
 
 #define HID_STAT_ADDED      BIT(0)
 #define HID_STAT_PARSED     BIT(1)
 #define HID_STAT_DUP_DETECTED   BIT(2)
 #define HID_STAT_REPROBED   BIT(3)
 
 struct hid_input {
     struct list_head list;
     struct hid_report *report;
     struct input_dev *input;
     const char *name;
     bool registered;
     struct list_head reports;   /* the list of reports */
     unsigned int application;   /* application usage for this input */
 };
 
 enum hid_type {
     HID_TYPE_OTHER = 0,
     HID_TYPE_USBMOUSE,
     HID_TYPE_USBNONE
 };
 
 enum hid_battery_status {
     HID_BATTERY_UNKNOWN = 0,
     HID_BATTERY_QUERIED,        /* Kernel explicitly queried battery strength */
     HID_BATTERY_REPORTED,       /* Device sent unsolicited battery strength report */
 };
 
 struct hid_driver;
 struct hid_ll_driver;
 
 struct hid_device {                         /* device report descriptor */
     __u8 *dev_rdesc;
     unsigned dev_rsize;
     __u8 *rdesc;
     unsigned rsize;
     struct hid_collection *collection;              /* List of HID collections */
     unsigned collection_size;                   /* Number of allocated hid_collections */
     unsigned maxcollection;                     /* Number of parsed collections */
     unsigned maxapplication;                    /* Number of applications */
     __u16 bus;                          /* BUS ID */
     __u16 group;                            /* Report group */
     __u32 vendor;                           /* Vendor ID */
     __u32 product;                          /* Product ID */
     __u32 version;                          /* HID version */
     enum hid_type type;                     /* device type (mouse, kbd, ...) */
     unsigned country;                       /* HID country */
     struct hid_report_enum report_enum[HID_REPORT_TYPES];
     struct work_struct led_work;                    /* delayed LED worker */
 
     struct semaphore driver_input_lock;             /* protects the current driver */
     struct device dev;                      /* device */
     struct hid_driver *driver;
 
     struct hid_ll_driver *ll_driver;
     struct mutex ll_open_lock;
     unsigned int ll_open_count;
 
 #ifdef CONFIG_HID_BATTERY_STRENGTH
     /*
      * Power supply information for HID devices which report
      * battery strength. power_supply was successfully registered if
      * battery is non-NULL.
      */
     struct power_supply *battery;
     __s32 battery_capacity;
     __s32 battery_min;
     __s32 battery_max;
     __s32 battery_report_type;
     __s32 battery_report_id;
     enum hid_battery_status battery_status;
     bool battery_avoid_query;
     ktime_t battery_ratelimit_time;
 #endif
 
     unsigned long status;                       /* see STAT flags above */
     unsigned claimed;                       /* Claimed by hidinput, hiddev? */
     unsigned quirks;                        /* Various quirks the device can pull on us */
     bool io_started;                        /* If IO has started */
 
     struct list_head inputs;                    /* The list of inputs */
     void *hiddev;                           /* The hiddev structure */
     void *hidraw;
 
     char name[128];                         /* Device name */
     char phys[64];                          /* Device physical location */
     char uniq[64];                          /* Device unique identifier (serial #) */
 
     void *driver_data;
 
     /* temporary hid_ff handling (until moved to the drivers) */
     int (*ff_init)(struct hid_device *);
 
     /* hiddev event handler */
     int (*hiddev_connect)(struct hid_device *, unsigned int);
     void (*hiddev_disconnect)(struct hid_device *);
     void (*hiddev_hid_event) (struct hid_device *, struct hid_field *field,
                   struct hid_usage *, __s32);
     void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
 
     /* debugging support via debugfs */
     unsigned short debug;
     struct dentry *debug_dir;
     struct dentry *debug_rdesc;
     struct dentry *debug_events;
     struct list_head debug_list;
     spinlock_t  debug_list_lock;
     wait_queue_head_t debug_wait;
 };
 
 #define to_hid_device(pdev) \
     container_of(pdev, struct hid_device, dev)
 
 static inline void *hid_get_drvdata(struct hid_device *hdev)
 {
     return dev_get_drvdata(&hdev->dev);
 }
 
 static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
 {
     dev_set_drvdata(&hdev->dev, data);
 }
 
 #define HID_GLOBAL_STACK_SIZE 4
 #define HID_COLLECTION_STACK_SIZE 4
 
 #define HID_SCAN_FLAG_MT_WIN_8          BIT(0)
 #define HID_SCAN_FLAG_VENDOR_SPECIFIC       BIT(1)
 #define HID_SCAN_FLAG_GD_POINTER        BIT(2)
 
 struct hid_parser {
     struct hid_global     global;
     struct hid_global     global_stack[HID_GLOBAL_STACK_SIZE];
     unsigned int          global_stack_ptr;
     struct hid_local      local;
     unsigned int         *collection_stack;
     unsigned int          collection_stack_ptr;
     unsigned int          collection_stack_size;
     struct hid_device    *device;
     unsigned int          scan_flags;
 };
 
 struct hid_class_descriptor {
     __u8  bDescriptorType;
     __le16 wDescriptorLength;
 } __attribute__ ((packed));
 
 struct hid_descriptor {
     __u8  bLength;
     __u8  bDescriptorType;
     __le16 bcdHID;
     __u8  bCountryCode;
     __u8  bNumDescriptors;
 
     struct hid_class_descriptor desc[1];
 } __attribute__ ((packed));
 
 #define HID_DEVICE(b, g, ven, prod)                 \
     .bus = (b), .group = (g), .vendor = (ven), .product = (prod)
 #define HID_USB_DEVICE(ven, prod)               \
     .bus = BUS_USB, .vendor = (ven), .product = (prod)
 #define HID_BLUETOOTH_DEVICE(ven, prod)                 \
     .bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
 #define HID_I2C_DEVICE(ven, prod)               \
     .bus = BUS_I2C, .vendor = (ven), .product = (prod)
 
 #define HID_REPORT_ID(rep) \
     .report_type = (rep)
 #define HID_USAGE_ID(uhid, utype, ucode) \
     .usage_hid = (uhid), .usage_type = (utype), .usage_code = (ucode)
 /* we don't want to catch types and codes equal to 0 */
 #define HID_TERMINATOR      (HID_ANY_ID - 1)
 
 struct hid_report_id {
     __u32 report_type;
 };
 struct hid_usage_id {
     __u32 usage_hid;
     __u32 usage_type;
     __u32 usage_code;
 };
 
 /**
  * struct hid_driver
  * @name: driver name (e.g. "Footech_bar-wheel")
  * @id_table: which devices is this driver for (must be non-NULL for probe
  *        to be called)
  * @dyn_list: list of dynamically added device ids
  * @dyn_lock: lock protecting @dyn_list
  * @match: check if the given device is handled by this driver
  * @probe: new device inserted
  * @remove: device removed (NULL if not a hot-plug capable driver)
  * @report_table: on which reports to call raw_event (NULL means all)
  * @raw_event: if report in report_table, this hook is called (NULL means nop)
  * @usage_table: on which events to call event (NULL means all)
  * @event: if usage in usage_table, this hook is called (NULL means nop)
  * @report: this hook is called after parsing a report (NULL means nop)
  * @report_fixup: called before report descriptor parsing (NULL means nop)
  * @input_mapping: invoked on input registering before mapping an usage
  * @input_mapped: invoked on input registering after mapping an usage
  * @input_configured: invoked just before the device is registered
  * @feature_mapping: invoked on feature registering
  * @suspend: invoked on suspend (NULL means nop)
  * @resume: invoked on resume if device was not reset (NULL means nop)
  * @reset_resume: invoked on resume if device was reset (NULL means nop)
  *
  * probe should return -errno on error, or 0 on success. During probe,
  * input will not be passed to raw_event unless hid_device_io_start is
  * called.
  *
  * raw_event and event should return negative on error, any other value will
  * pass the event on to .event() typically return 0 for success.
  *
  * input_mapping shall return a negative value to completely ignore this usage
  * (e.g. doubled or invalid usage), zero to continue with parsing of this
  * usage by generic code (no special handling needed) or positive to skip
  * generic parsing (needed special handling which was done in the hook already)
  * input_mapped shall return negative to inform the layer that this usage
  * should not be considered for further processing or zero to notify that
  * no processing was performed and should be done in a generic manner
  * Both these functions may be NULL which means the same behavior as returning
  * zero from them.
  */
 struct hid_driver {
     char *name;
     const struct hid_device_id *id_table;
 
     struct list_head dyn_list;
     spinlock_t dyn_lock;
 
     bool (*match)(struct hid_device *dev, bool ignore_special_driver);
     int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
     void (*remove)(struct hid_device *dev);
 
     const struct hid_report_id *report_table;
     int (*raw_event)(struct hid_device *hdev, struct hid_report *report,
             u8 *data, int size);
     const struct hid_usage_id *usage_table;
     int (*event)(struct hid_device *hdev, struct hid_field *field,
             struct hid_usage *usage, __s32 value);
     void (*report)(struct hid_device *hdev, struct hid_report *report);
 
     __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
             unsigned int *size);
 
     int (*input_mapping)(struct hid_device *hdev,
             struct hid_input *hidinput, struct hid_field *field,
             struct hid_usage *usage, unsigned long **bit, int *max);
     int (*input_mapped)(struct hid_device *hdev,
             struct hid_input *hidinput, struct hid_field *field,
             struct hid_usage *usage, unsigned long **bit, int *max);
     int (*input_configured)(struct hid_device *hdev,
                 struct hid_input *hidinput);
     void (*feature_mapping)(struct hid_device *hdev,
             struct hid_field *field,
             struct hid_usage *usage);
 #ifdef CONFIG_PM
     int (*suspend)(struct hid_device *hdev, pm_message_t message);
     int (*resume)(struct hid_device *hdev);
     int (*reset_resume)(struct hid_device *hdev);
 #endif
 /* private: */
     struct device_driver driver;
 };
 
 #define to_hid_driver(pdrv) \
     container_of(pdrv, struct hid_driver, driver)
 
 /**
  * struct hid_ll_driver - low level driver callbacks
  * @start: called on probe to start the device
  * @stop: called on remove
  * @open: called by input layer on open
  * @close: called by input layer on close
  * @power: request underlying hardware to enter requested power mode
  * @parse: this method is called only once to parse the device data,
  *     shouldn't allocate anything to not leak memory
  * @request: send report request to device (e.g. feature report)
  * @wait: wait for buffered io to complete (send/recv reports)
  * @raw_request: send raw report request to device (e.g. feature report)
  * @output_report: send output report to device
  * @idle: send idle request to device
  * @may_wakeup: return if device may act as a wakeup source during system-suspend
  */
 struct hid_ll_driver {
     int (*start)(struct hid_device *hdev);
     void (*stop)(struct hid_device *hdev);
 
     int (*open)(struct hid_device *hdev);
     void (*close)(struct hid_device *hdev);
 
     int (*power)(struct hid_device *hdev, int level);
 
     int (*parse)(struct hid_device *hdev);
 
     void (*request)(struct hid_device *hdev,
             struct hid_report *report, int reqtype);
 
     int (*wait)(struct hid_device *hdev);
 
     int (*raw_request) (struct hid_device *hdev, unsigned char reportnum,
                 __u8 *buf, size_t len, unsigned char rtype,
                 int reqtype);
 
     int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
 
     int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
     bool (*may_wakeup)(struct hid_device *hdev);
 };
 
 extern struct hid_ll_driver i2c_hid_ll_driver;
 extern struct hid_ll_driver hidp_hid_driver;
 extern struct hid_ll_driver uhid_hid_driver;
 extern struct hid_ll_driver usb_hid_driver;
 
 static inline bool hid_is_using_ll_driver(struct hid_device *hdev,
         struct hid_ll_driver *driver)
 {
     return hdev->ll_driver == driver;
 }
 
 static inline bool hid_is_usb(struct hid_device *hdev)
 {
     return hid_is_using_ll_driver(hdev, &usb_hid_driver);
 }
 
 #define PM_HINT_FULLON  1<<5
 #define PM_HINT_NORMAL  1<<1
 
 /* Applications from HID Usage Tables 4/8/99 Version 1.1 */
 /* We ignore a few input applications that are not widely used */
 #define IS_INPUT_APPLICATION(a) \
         (((a >= HID_UP_GENDESK) && (a <= HID_GD_MULTIAXIS)) \
         || ((a >= HID_DG_PEN) && (a <= HID_DG_WHITEBOARD)) \
         || (a == HID_GD_SYSTEM_CONTROL) || (a == HID_CP_CONSUMER_CONTROL) \
         || (a == HID_GD_WIRELESS_RADIO_CTLS))
 
 /* HID core API */
 
 extern int hid_debug;
 
 extern bool hid_ignore(struct hid_device *);
 extern int hid_add_device(struct hid_device *);
 extern void hid_destroy_device(struct hid_device *);
 
 extern struct bus_type hid_bus_type;
 
 extern int __must_check __hid_register_driver(struct hid_driver *,
         struct module *, const char *mod_name);
 
 /* use a define to avoid include chaining to get THIS_MODULE & friends */
 #define hid_register_driver(driver) \
     __hid_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
 
 extern void hid_unregister_driver(struct hid_driver *);
 
 /**
  * module_hid_driver() - Helper macro for registering a HID driver
  * @__hid_driver: hid_driver struct
  *
  * Helper macro for HID drivers which do not do anything special in module
  * init/exit. This eliminates a lot of boilerplate. Each module may only
  * use this macro once, and calling it replaces module_init() and module_exit()
  */
 #define module_hid_driver(__hid_driver) \
     module_driver(__hid_driver, hid_register_driver, \
               hid_unregister_driver)
 
 extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32);
 extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
 extern int hidinput_connect(struct hid_device *hid, unsigned int force);
 extern void hidinput_disconnect(struct hid_device *);
 
 int hid_set_field(struct hid_field *, unsigned, __s32);
 int hid_input_report(struct hid_device *, int type, u8 *, u32, int);
 struct hid_field *hidinput_get_led_field(struct hid_device *hid);
 unsigned int hidinput_count_leds(struct hid_device *hid);
 __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
 void hid_output_report(struct hid_report *report, __u8 *data);
 int __hid_request(struct hid_device *hid, struct hid_report *rep, int reqtype);
 u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
 struct hid_device *hid_allocate_device(void);
 struct hid_report *hid_register_report(struct hid_device *device,
                        unsigned int type, unsigned int id,
                        unsigned int application);
 int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
 struct hid_report *hid_validate_values(struct hid_device *hid,
                        unsigned int type, unsigned int id,
                        unsigned int field_index,
                        unsigned int report_counts);
 
 void hid_setup_resolution_multiplier(struct hid_device *hid);
 int hid_open_report(struct hid_device *device);
 int hid_check_keys_pressed(struct hid_device *hid);
 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
 void hid_disconnect(struct hid_device *hid);
 bool hid_match_one_id(const struct hid_device *hdev,
               const struct hid_device_id *id);
 const struct hid_device_id *hid_match_id(const struct hid_device *hdev,
                      const struct hid_device_id *id);
 const struct hid_device_id *hid_match_device(struct hid_device *hdev,
                          struct hid_driver *hdrv);
 bool hid_compare_device_paths(struct hid_device *hdev_a,
                   struct hid_device *hdev_b, char separator);
 s32 hid_snto32(__u32 value, unsigned n);
 __u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
              unsigned offset, unsigned n);
 
 #ifdef CONFIG_PM
 int hid_driver_suspend(struct hid_device *hdev, pm_message_t state);
 int hid_driver_reset_resume(struct hid_device *hdev);
 int hid_driver_resume(struct hid_device *hdev);
 #else
 static inline int hid_driver_suspend(struct hid_device *hdev, pm_message_t state) { return 0; }
 static inline int hid_driver_reset_resume(struct hid_device *hdev) { return 0; }
 static inline int hid_driver_resume(struct hid_device *hdev) { return 0; }
 #endif
 
 /**
  * hid_device_io_start - enable HID input during probe, remove
  *
  * @hid: the device
  *
  * This should only be called during probe or remove and only be
  * called by the thread calling probe or remove. It will allow
  * incoming packets to be delivered to the driver.
  */
 static inline void hid_device_io_start(struct hid_device *hid) {
     if (hid->io_started) {
         dev_warn(&hid->dev, "io already started\n");
         return;
     }
     hid->io_started = true;
     up(&hid->driver_input_lock);
 }
 
 /**
  * hid_device_io_stop - disable HID input during probe, remove
  *
  * @hid: the device
  *
  * Should only be called after hid_device_io_start. It will prevent
  * incoming packets from going to the driver for the duration of
  * probe, remove. If called during probe, packets will still go to the
  * driver after probe is complete. This function should only be called
  * by the thread calling probe or remove.
  */
 static inline void hid_device_io_stop(struct hid_device *hid) {
     if (!hid->io_started) {
         dev_warn(&hid->dev, "io already stopped\n");
         return;
     }
     hid->io_started = false;
     down(&hid->driver_input_lock);
 }
 
 /**
  * hid_map_usage - map usage input bits
  *
  * @hidinput: hidinput which we are interested in
  * @usage: usage to fill in
  * @bit: pointer to input->{}bit (out parameter)
  * @max: maximal valid usage->code to consider later (out parameter)
  * @type: input event type (EV_KEY, EV_REL, ...)
  * @c: code which corresponds to this usage and type
  *
  * The value pointed to by @bit will be set to NULL if either @type is
  * an unhandled event type, or if @c is out of range for @type. This
  * can be used as an error condition.
  */
 static inline void hid_map_usage(struct hid_input *hidinput,
         struct hid_usage *usage, unsigned long **bit, int *max,
         __u8 type, unsigned int c)
 {
     struct input_dev *input = hidinput->input;
     unsigned long *bmap = NULL;
     unsigned int limit = 0;
 
     switch (type) {
     case EV_ABS:
         bmap = input->absbit;
         limit = ABS_MAX;
         break;
     case EV_REL:
         bmap = input->relbit;
         limit = REL_MAX;
         break;
     case EV_KEY:
         bmap = input->keybit;
         limit = KEY_MAX;
         break;
     case EV_LED:
         bmap = input->ledbit;
         limit = LED_MAX;
         break;
     case EV_MSC:
         bmap = input->mscbit;
         limit = MSC_MAX;
         break;
     }
 
     if (unlikely(c > limit || !bmap)) {
         pr_warn_ratelimited("%s: Invalid code %d type %d\n",
                     input->name, c, type);
         *bit = NULL;
         return;
     }
 
     usage->type = type;
     usage->code = c;
     *max = limit;
     *bit = bmap;
 }
 
 /**
  * hid_map_usage_clear - map usage input bits and clear the input bit
  *
  * @hidinput: hidinput which we are interested in
  * @usage: usage to fill in
  * @bit: pointer to input->{}bit (out parameter)
  * @max: maximal valid usage->code to consider later (out parameter)
  * @type: input event type (EV_KEY, EV_REL, ...)
  * @c: code which corresponds to this usage and type
  *
  * The same as hid_map_usage, except the @c bit is also cleared in supported
  * bits (@bit).
  */
 static inline void hid_map_usage_clear(struct hid_input *hidinput,
         struct hid_usage *usage, unsigned long **bit, int *max,
         __u8 type, __u16 c)
 {
     hid_map_usage(hidinput, usage, bit, max, type, c);
     if (*bit)
         clear_bit(usage->code, *bit);
 }
 
 /**
  * hid_parse - parse HW reports
  *
  * @hdev: hid device
  *
  * Call this from probe after you set up the device (if needed). Your
  * report_fixup will be called (if non-NULL) after reading raw report from
  * device before passing it to hid layer for real parsing.
  */
 static inline int __must_check hid_parse(struct hid_device *hdev)
 {
     return hid_open_report(hdev);
 }
 
 int __must_check hid_hw_start(struct hid_device *hdev,
                   unsigned int connect_mask);
 void hid_hw_stop(struct hid_device *hdev);
 int __must_check hid_hw_open(struct hid_device *hdev);
 void hid_hw_close(struct hid_device *hdev);
 void hid_hw_request(struct hid_device *hdev,
             struct hid_report *report, int reqtype);
 int hid_hw_raw_request(struct hid_device *hdev,
                unsigned char reportnum, __u8 *buf,
                size_t len, unsigned char rtype, int reqtype);
 int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, size_t len);
 
 /**
  * hid_hw_power - requests underlying HW to go into given power mode
  *
  * @hdev: hid device
  * @level: requested power level (one of %PM_HINT_* defines)
  *
  * This function requests underlying hardware to enter requested power
  * mode.
  */
 
 static inline int hid_hw_power(struct hid_device *hdev, int level)
 {
     return hdev->ll_driver->power ? hdev->ll_driver->power(hdev, level) : 0;
 }
 
 
 /**
  * hid_hw_idle - send idle request to device
  *
  * @hdev: hid device
  * @report: report to control
  * @idle: idle state
  * @reqtype: hid request type
  */
 static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle,
         int reqtype)
 {
     if (hdev->ll_driver->idle)
         return hdev->ll_driver->idle(hdev, report, idle, reqtype);
 
     return 0;
 }
 
 /**
  * hid_hw_may_wakeup - return if the hid device may act as a wakeup source during system-suspend
  *
  * @hdev: hid device
  */
 static inline bool hid_hw_may_wakeup(struct hid_device *hdev)
 {
     if (hdev->ll_driver->may_wakeup)
         return hdev->ll_driver->may_wakeup(hdev);
 
     if (hdev->dev.parent)
         return device_may_wakeup(hdev->dev.parent);
 
     return false;
 }
 
 /**
  * hid_hw_wait - wait for buffered io to complete
  *
  * @hdev: hid device
  */
 static inline void hid_hw_wait(struct hid_device *hdev)
 {
     if (hdev->ll_driver->wait)
         hdev->ll_driver->wait(hdev);
 }
 
 /**
  * hid_report_len - calculate the report length
  *
  * @report: the report we want to know the length
  */
 static inline u32 hid_report_len(struct hid_report *report)
 {
     return DIV_ROUND_UP(report->size, 8) + (report->id > 0);
 }
 
 int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, u32 size,
         int interrupt);
 
 /* HID quirks API */
 unsigned long hid_lookup_quirk(const struct hid_device *hdev);
 int hid_quirks_init(char **quirks_param, __u16 bus, int count);
 void hid_quirks_exit(__u16 bus);
 
 #ifdef CONFIG_HID_PID
 int hid_pidff_init(struct hid_device *hid);
 #else
 #define hid_pidff_init NULL
 #endif
 
 #define dbg_hid(fmt, ...)                       \
 do {                                    \
     if (hid_debug)                          \
         printk(KERN_DEBUG "%s: " fmt, __FILE__, ##__VA_ARGS__); \
 } while (0)
 
 #define hid_err(hid, fmt, ...)              \
     dev_err(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_notice(hid, fmt, ...)           \
     dev_notice(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_warn(hid, fmt, ...)             \
     dev_warn(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_info(hid, fmt, ...)             \
     dev_info(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_dbg(hid, fmt, ...)              \
     dev_dbg(&(hid)->dev, fmt, ##__VA_ARGS__)
 
 #define hid_err_once(hid, fmt, ...)         \
     dev_err_once(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_notice_once(hid, fmt, ...)          \
     dev_notice_once(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_warn_once(hid, fmt, ...)            \
     dev_warn_once(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_info_once(hid, fmt, ...)            \
     dev_info_once(&(hid)->dev, fmt, ##__VA_ARGS__)
 #define hid_dbg_once(hid, fmt, ...)         \
     dev_dbg_once(&(hid)->dev, fmt, ##__VA_ARGS__)
 
 #endif

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