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hid-debug.c

/*
 * $Id: hid-debug.h,v 1.8 2001/09/25 09:37:57 vojtech Exp $
 *
 *  (c) 1999 Andreas Gal            <gal@cs.uni-magdeburg.de>
 *  (c) 2000-2001 Vojtech Pavlik    <vojtech@ucw.cz>
 *  (c) 2007 Jiri Kosina
 *
 *  Some debug stuff for the HID parser.
 */

/*
 * 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.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 * 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
 */

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

struct hid_usage_entry {
      unsigned  page;
      unsigned  usage;
      const char     *description;
};

static const struct hid_usage_entry hid_usage_table[] = {
  {  0,      0, "Undefined" },
  {  1,      0, "GenericDesktop" },
    {0, 0x01, "Pointer"},
    {0, 0x02, "Mouse"},
    {0, 0x04, "Joystick"},
    {0, 0x05, "GamePad"},
    {0, 0x06, "Keyboard"},
    {0, 0x07, "Keypad"},
    {0, 0x08, "MultiAxis"},
      {0, 0x30, "X"},
      {0, 0x31, "Y"},
      {0, 0x32, "Z"},
      {0, 0x33, "Rx"},
      {0, 0x34, "Ry"},
      {0, 0x35, "Rz"},
      {0, 0x36, "Slider"},
      {0, 0x37, "Dial"},
      {0, 0x38, "Wheel"},
      {0, 0x39, "HatSwitch"},
    {0, 0x3a, "CountedBuffer"},
      {0, 0x3b, "ByteCount"},
      {0, 0x3c, "MotionWakeup"},
      {0, 0x3d, "Start"},
      {0, 0x3e, "Select"},
      {0, 0x40, "Vx"},
      {0, 0x41, "Vy"},
      {0, 0x42, "Vz"},
      {0, 0x43, "Vbrx"},
      {0, 0x44, "Vbry"},
      {0, 0x45, "Vbrz"},
      {0, 0x46, "Vno"},
    {0, 0x80, "SystemControl"},
      {0, 0x81, "SystemPowerDown"},
      {0, 0x82, "SystemSleep"},
      {0, 0x83, "SystemWakeUp"},
      {0, 0x84, "SystemContextMenu"},
      {0, 0x85, "SystemMainMenu"},
      {0, 0x86, "SystemAppMenu"},
      {0, 0x87, "SystemMenuHelp"},
      {0, 0x88, "SystemMenuExit"},
      {0, 0x89, "SystemMenuSelect"},
      {0, 0x8a, "SystemMenuRight"},
      {0, 0x8b, "SystemMenuLeft"},
      {0, 0x8c, "SystemMenuUp"},
      {0, 0x8d, "SystemMenuDown"},
      {0, 0x90, "D-PadUp"},
      {0, 0x91, "D-PadDown"},
      {0, 0x92, "D-PadRight"},
      {0, 0x93, "D-PadLeft"},
  {  2, 0, "Simulation" },
      {0, 0xb0, "Aileron"},
      {0, 0xb1, "AileronTrim"},
      {0, 0xb2, "Anti-Torque"},
      {0, 0xb3, "Autopilot"},
      {0, 0xb4, "Chaff"},
      {0, 0xb5, "Collective"},
      {0, 0xb6, "DiveBrake"},
      {0, 0xb7, "ElectronicCountermeasures"},
      {0, 0xb8, "Elevator"},
      {0, 0xb9, "ElevatorTrim"},
      {0, 0xba, "Rudder"},
      {0, 0xbb, "Throttle"},
      {0, 0xbc, "FlightCommunications"},
      {0, 0xbd, "FlareRelease"},
      {0, 0xbe, "LandingGear"},
      {0, 0xbf, "ToeBrake"},
  {  7, 0, "Keyboard" },
  {  8, 0, "LED" },
      {0, 0x01, "NumLock"},
      {0, 0x02, "CapsLock"},
      {0, 0x03, "ScrollLock"},
      {0, 0x04, "Compose"},
      {0, 0x05, "Kana"},
      {0, 0x4b, "GenericIndicator"},
  {  9, 0, "Button" },
  { 10, 0, "Ordinal" },
  { 12, 0, "Consumer" },
      {0, 0x238, "HorizontalWheel"},
  { 13, 0, "Digitizers" },
    {0, 0x01, "Digitizer"},
    {0, 0x02, "Pen"},
    {0, 0x03, "LightPen"},
    {0, 0x04, "TouchScreen"},
    {0, 0x05, "TouchPad"},
    {0, 0x20, "Stylus"},
    {0, 0x21, "Puck"},
    {0, 0x22, "Finger"},
    {0, 0x30, "TipPressure"},
    {0, 0x31, "BarrelPressure"},
    {0, 0x32, "InRange"},
    {0, 0x33, "Touch"},
    {0, 0x34, "UnTouch"},
    {0, 0x35, "Tap"},
    {0, 0x39, "TabletFunctionKey"},
    {0, 0x3a, "ProgramChangeKey"},
    {0, 0x3c, "Invert"},
    {0, 0x42, "TipSwitch"},
    {0, 0x43, "SecondaryTipSwitch"},
    {0, 0x44, "BarrelSwitch"},
    {0, 0x45, "Eraser"},
    {0, 0x46, "TabletPick"},
  { 15, 0, "PhysicalInterfaceDevice" },
    {0, 0x00, "Undefined"},
    {0, 0x01, "Physical_Interface_Device"},
      {0, 0x20, "Normal"},
    {0, 0x21, "Set_Effect_Report"},
      {0, 0x22, "Effect_Block_Index"},
      {0, 0x23, "Parameter_Block_Offset"},
      {0, 0x24, "ROM_Flag"},
      {0, 0x25, "Effect_Type"},
        {0, 0x26, "ET_Constant_Force"},
        {0, 0x27, "ET_Ramp"},
        {0, 0x28, "ET_Custom_Force_Data"},
        {0, 0x30, "ET_Square"},
        {0, 0x31, "ET_Sine"},
        {0, 0x32, "ET_Triangle"},
        {0, 0x33, "ET_Sawtooth_Up"},
        {0, 0x34, "ET_Sawtooth_Down"},
        {0, 0x40, "ET_Spring"},
        {0, 0x41, "ET_Damper"},
        {0, 0x42, "ET_Inertia"},
        {0, 0x43, "ET_Friction"},
      {0, 0x50, "Duration"},
      {0, 0x51, "Sample_Period"},
      {0, 0x52, "Gain"},
      {0, 0x53, "Trigger_Button"},
      {0, 0x54, "Trigger_Repeat_Interval"},
      {0, 0x55, "Axes_Enable"},
        {0, 0x56, "Direction_Enable"},
      {0, 0x57, "Direction"},
      {0, 0x58, "Type_Specific_Block_Offset"},
        {0, 0x59, "Block_Type"},
        {0, 0x5A, "Set_Envelope_Report"},
          {0, 0x5B, "Attack_Level"},
          {0, 0x5C, "Attack_Time"},
          {0, 0x5D, "Fade_Level"},
          {0, 0x5E, "Fade_Time"},
        {0, 0x5F, "Set_Condition_Report"},
        {0, 0x60, "CP_Offset"},
        {0, 0x61, "Positive_Coefficient"},
        {0, 0x62, "Negative_Coefficient"},
        {0, 0x63, "Positive_Saturation"},
        {0, 0x64, "Negative_Saturation"},
        {0, 0x65, "Dead_Band"},
      {0, 0x66, "Download_Force_Sample"},
      {0, 0x67, "Isoch_Custom_Force_Enable"},
      {0, 0x68, "Custom_Force_Data_Report"},
        {0, 0x69, "Custom_Force_Data"},
        {0, 0x6A, "Custom_Force_Vendor_Defined_Data"},
      {0, 0x6B, "Set_Custom_Force_Report"},
        {0, 0x6C, "Custom_Force_Data_Offset"},
        {0, 0x6D, "Sample_Count"},
      {0, 0x6E, "Set_Periodic_Report"},
        {0, 0x6F, "Offset"},
        {0, 0x70, "Magnitude"},
        {0, 0x71, "Phase"},
        {0, 0x72, "Period"},
      {0, 0x73, "Set_Constant_Force_Report"},
        {0, 0x74, "Set_Ramp_Force_Report"},
        {0, 0x75, "Ramp_Start"},
        {0, 0x76, "Ramp_End"},
      {0, 0x77, "Effect_Operation_Report"},
        {0, 0x78, "Effect_Operation"},
          {0, 0x79, "Op_Effect_Start"},
          {0, 0x7A, "Op_Effect_Start_Solo"},
          {0, 0x7B, "Op_Effect_Stop"},
          {0, 0x7C, "Loop_Count"},
      {0, 0x7D, "Device_Gain_Report"},
        {0, 0x7E, "Device_Gain"},
    {0, 0x7F, "PID_Pool_Report"},
      {0, 0x80, "RAM_Pool_Size"},
      {0, 0x81, "ROM_Pool_Size"},
      {0, 0x82, "ROM_Effect_Block_Count"},
      {0, 0x83, "Simultaneous_Effects_Max"},
      {0, 0x84, "Pool_Alignment"},
    {0, 0x85, "PID_Pool_Move_Report"},
      {0, 0x86, "Move_Source"},
      {0, 0x87, "Move_Destination"},
      {0, 0x88, "Move_Length"},
    {0, 0x89, "PID_Block_Load_Report"},
      {0, 0x8B, "Block_Load_Status"},
      {0, 0x8C, "Block_Load_Success"},
      {0, 0x8D, "Block_Load_Full"},
      {0, 0x8E, "Block_Load_Error"},
      {0, 0x8F, "Block_Handle"},
      {0, 0x90, "PID_Block_Free_Report"},
      {0, 0x91, "Type_Specific_Block_Handle"},
    {0, 0x92, "PID_State_Report"},
      {0, 0x94, "Effect_Playing"},
      {0, 0x95, "PID_Device_Control_Report"},
        {0, 0x96, "PID_Device_Control"},
        {0, 0x97, "DC_Enable_Actuators"},
        {0, 0x98, "DC_Disable_Actuators"},
        {0, 0x99, "DC_Stop_All_Effects"},
        {0, 0x9A, "DC_Device_Reset"},
        {0, 0x9B, "DC_Device_Pause"},
        {0, 0x9C, "DC_Device_Continue"},
      {0, 0x9F, "Device_Paused"},
      {0, 0xA0, "Actuators_Enabled"},
      {0, 0xA4, "Safety_Switch"},
      {0, 0xA5, "Actuator_Override_Switch"},
      {0, 0xA6, "Actuator_Power"},
    {0, 0xA7, "Start_Delay"},
    {0, 0xA8, "Parameter_Block_Size"},
    {0, 0xA9, "Device_Managed_Pool"},
    {0, 0xAA, "Shared_Parameter_Blocks"},
    {0, 0xAB, "Create_New_Effect_Report"},
    {0, 0xAC, "RAM_Pool_Available"},
  { 0x84, 0, "Power Device" },
    { 0x84, 0x02, "PresentStatus" },
    { 0x84, 0x03, "ChangeStatus" },
    { 0x84, 0x04, "UPS" },
    { 0x84, 0x05, "PowerSupply" },
    { 0x84, 0x10, "BatterySystem" },
    { 0x84, 0x11, "BatterySystemID" },
    { 0x84, 0x12, "Battery" },
    { 0x84, 0x13, "BatteryID" },
    { 0x84, 0x14, "Charger" },
    { 0x84, 0x15, "ChargerID" },
    { 0x84, 0x16, "PowerConverter" },
    { 0x84, 0x17, "PowerConverterID" },
    { 0x84, 0x18, "OutletSystem" },
    { 0x84, 0x19, "OutletSystemID" },
    { 0x84, 0x1a, "Input" },
    { 0x84, 0x1b, "InputID" },
    { 0x84, 0x1c, "Output" },
    { 0x84, 0x1d, "OutputID" },
    { 0x84, 0x1e, "Flow" },
    { 0x84, 0x1f, "FlowID" },
    { 0x84, 0x20, "Outlet" },
    { 0x84, 0x21, "OutletID" },
    { 0x84, 0x22, "Gang" },
    { 0x84, 0x24, "PowerSummary" },
    { 0x84, 0x25, "PowerSummaryID" },
    { 0x84, 0x30, "Voltage" },
    { 0x84, 0x31, "Current" },
    { 0x84, 0x32, "Frequency" },
    { 0x84, 0x33, "ApparentPower" },
    { 0x84, 0x35, "PercentLoad" },
    { 0x84, 0x40, "ConfigVoltage" },
    { 0x84, 0x41, "ConfigCurrent" },
    { 0x84, 0x43, "ConfigApparentPower" },
    { 0x84, 0x53, "LowVoltageTransfer" },
    { 0x84, 0x54, "HighVoltageTransfer" },
    { 0x84, 0x56, "DelayBeforeStartup" },
    { 0x84, 0x57, "DelayBeforeShutdown" },
    { 0x84, 0x58, "Test" },
    { 0x84, 0x5a, "AudibleAlarmControl" },
    { 0x84, 0x60, "Present" },
    { 0x84, 0x61, "Good" },
    { 0x84, 0x62, "InternalFailure" },
    { 0x84, 0x65, "Overload" },
    { 0x84, 0x66, "OverCharged" },
    { 0x84, 0x67, "OverTemperature" },
    { 0x84, 0x68, "ShutdownRequested" },
    { 0x84, 0x69, "ShutdownImminent" },
    { 0x84, 0x6b, "SwitchOn/Off" },
    { 0x84, 0x6c, "Switchable" },
    { 0x84, 0x6d, "Used" },
    { 0x84, 0x6e, "Boost" },
    { 0x84, 0x73, "CommunicationLost" },
    { 0x84, 0xfd, "iManufacturer" },
    { 0x84, 0xfe, "iProduct" },
    { 0x84, 0xff, "iSerialNumber" },
  { 0x85, 0, "Battery System" },
    { 0x85, 0x01, "SMBBatteryMode" },
    { 0x85, 0x02, "SMBBatteryStatus" },
    { 0x85, 0x03, "SMBAlarmWarning" },
    { 0x85, 0x04, "SMBChargerMode" },
    { 0x85, 0x05, "SMBChargerStatus" },
    { 0x85, 0x06, "SMBChargerSpecInfo" },
    { 0x85, 0x07, "SMBSelectorState" },
    { 0x85, 0x08, "SMBSelectorPresets" },
    { 0x85, 0x09, "SMBSelectorInfo" },
    { 0x85, 0x29, "RemainingCapacityLimit" },
    { 0x85, 0x2c, "CapacityMode" },
    { 0x85, 0x42, "BelowRemainingCapacityLimit" },
    { 0x85, 0x44, "Charging" },
    { 0x85, 0x45, "Discharging" },
    { 0x85, 0x4b, "NeedReplacement" },
    { 0x85, 0x66, "RemainingCapacity" },
    { 0x85, 0x68, "RunTimeToEmpty" },
    { 0x85, 0x6a, "AverageTimeToFull" },
    { 0x85, 0x83, "DesignCapacity" },
    { 0x85, 0x85, "ManufacturerDate" },
    { 0x85, 0x89, "iDeviceChemistry" },
    { 0x85, 0x8b, "Rechargable" },
    { 0x85, 0x8f, "iOEMInformation" },
    { 0x85, 0x8d, "CapacityGranularity1" },
    { 0x85, 0xd0, "ACPresent" },
  /* pages 0xff00 to 0xffff are vendor-specific */
  { 0xffff, 0, "Vendor-specific-FF" },
  { 0, 0, NULL }
};

static void resolv_usage_page(unsigned page) {
      const struct hid_usage_entry *p;

      for (p = hid_usage_table; p->description; p++)
            if (p->page == page) {
                  printk("%s", p->description);
                  return;
            }
      printk("%04x", page);
}

void hid_resolv_usage(unsigned usage) {
      const struct hid_usage_entry *p;

      if (!hid_debug)
            return;

      resolv_usage_page(usage >> 16);
      printk(".");
      for (p = hid_usage_table; p->description; p++)
            if (p->page == (usage >> 16)) {
                  for(++p; p->description && p->usage != 0; p++)
                        if (p->usage == (usage & 0xffff)) {
                              printk("%s", p->description);
                              return;
                        }
                  break;
            }
      printk("%04x", usage & 0xffff);
}
EXPORT_SYMBOL_GPL(hid_resolv_usage);

static void tab(int n) {
      printk(KERN_DEBUG "%*s", n, "");
}

void hid_dump_field(struct hid_field *field, int n) {
      int j;

      if (!hid_debug)
            return;

      if (field->physical) {
            tab(n);
            printk("Physical(");
            hid_resolv_usage(field->physical); printk(")\n");
      }
      if (field->logical) {
            tab(n);
            printk("Logical(");
            hid_resolv_usage(field->logical); printk(")\n");
      }
      tab(n); printk("Usage(%d)\n", field->maxusage);
      for (j = 0; j < field->maxusage; j++) {
            tab(n+2); hid_resolv_usage(field->usage[j].hid); printk("\n");
      }
      if (field->logical_minimum != field->logical_maximum) {
            tab(n); printk("Logical Minimum(%d)\n", field->logical_minimum);
            tab(n); printk("Logical Maximum(%d)\n", field->logical_maximum);
      }
      if (field->physical_minimum != field->physical_maximum) {
            tab(n); printk("Physical Minimum(%d)\n", field->physical_minimum);
            tab(n); printk("Physical Maximum(%d)\n", field->physical_maximum);
      }
      if (field->unit_exponent) {
            tab(n); printk("Unit Exponent(%d)\n", field->unit_exponent);
      }
      if (field->unit) {
            static const char *systems[5] = { "None", "SI Linear", "SI Rotation", "English Linear", "English Rotation" };
            static const char *units[5][8] = {
                  { "None", "None", "None", "None", "None", "None", "None", "None" },
                  { "None", "Centimeter", "Gram", "Seconds", "Kelvin",     "Ampere", "Candela", "None" },
                  { "None", "Radians",    "Gram", "Seconds", "Kelvin",     "Ampere", "Candela", "None" },
                  { "None", "Inch",       "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" },
                  { "None", "Degrees",    "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" }
            };

            int i;
            int sys;
                __u32 data = field->unit;

            /* First nibble tells us which system we're in. */
            sys = data & 0xf;
            data >>= 4;

            if(sys > 4) {
                  tab(n); printk("Unit(Invalid)\n");
            }
            else {
                  int earlier_unit = 0;

                  tab(n); printk("Unit(%s : ", systems[sys]);

                  for (i=1 ; i<sizeof(__u32)*2 ; i++) {
                        char nibble = data & 0xf;
                        data >>= 4;
                        if (nibble != 0) {
                              if(earlier_unit++ > 0)
                                    printk("*");
                              printk("%s", units[sys][i]);
                              if(nibble != 1) {
                                    /* This is a _signed_ nibble(!) */

                                    int val = nibble & 0x7;
                                    if(nibble & 0x08)
                                          val = -((0x7 & ~val) +1);
                                    printk("^%d", val);
                              }
                        }
                  }
                  printk(")\n");
            }
      }
      tab(n); printk("Report Size(%u)\n", field->report_size);
      tab(n); printk("Report Count(%u)\n", field->report_count);
      tab(n); printk("Report Offset(%u)\n", field->report_offset);

      tab(n); printk("Flags( ");
      j = field->flags;
      printk("%s", HID_MAIN_ITEM_CONSTANT & j ? "Constant " : "");
      printk("%s", HID_MAIN_ITEM_VARIABLE & j ? "Variable " : "Array ");
      printk("%s", HID_MAIN_ITEM_RELATIVE & j ? "Relative " : "Absolute ");
      printk("%s", HID_MAIN_ITEM_WRAP & j ? "Wrap " : "");
      printk("%s", HID_MAIN_ITEM_NONLINEAR & j ? "NonLinear " : "");
      printk("%s", HID_MAIN_ITEM_NO_PREFERRED & j ? "NoPreferredState " : "");
      printk("%s", HID_MAIN_ITEM_NULL_STATE & j ? "NullState " : "");
      printk("%s", HID_MAIN_ITEM_VOLATILE & j ? "Volatile " : "");
      printk("%s", HID_MAIN_ITEM_BUFFERED_BYTE & j ? "BufferedByte " : "");
      printk(")\n");
}
EXPORT_SYMBOL_GPL(hid_dump_field);

void hid_dump_device(struct hid_device *device) {
      struct hid_report_enum *report_enum;
      struct hid_report *report;
      struct list_head *list;
      unsigned i,k;
      static const char *table[] = {"INPUT", "OUTPUT", "FEATURE"};

      if (!hid_debug)
            return;

      for (i = 0; i < HID_REPORT_TYPES; i++) {
            report_enum = device->report_enum + i;
            list = report_enum->report_list.next;
            while (list != &report_enum->report_list) {
                  report = (struct hid_report *) list;
                  tab(2);
                  printk("%s", table[i]);
                  if (report->id)
                        printk("(%d)", report->id);
                  printk("[%s]", table[report->type]);
                  printk("\n");
                  for (k = 0; k < report->maxfield; k++) {
                        tab(4);
                        printk("Field(%d)\n", k);
                        hid_dump_field(report->field[k], 6);
                  }
                  list = list->next;
            }
      }
}
EXPORT_SYMBOL_GPL(hid_dump_device);

void hid_dump_input(struct hid_usage *usage, __s32 value) {
      if (!hid_debug)
            return;

      printk(KERN_DEBUG "hid-debug: input ");
      hid_resolv_usage(usage->hid);
      printk(" = %d\n", value);
}
EXPORT_SYMBOL_GPL(hid_dump_input);

static const char *events[EV_MAX + 1] = {
      [EV_SYN] = "Sync",                  [EV_KEY] = "Key",
      [EV_REL] = "Relative",              [EV_ABS] = "Absolute",
      [EV_MSC] = "Misc",                  [EV_LED] = "LED",
      [EV_SND] = "Sound",                 [EV_REP] = "Repeat",
      [EV_FF] = "ForceFeedback",          [EV_PWR] = "Power",
      [EV_FF_STATUS] = "ForceFeedbackStatus",
};

static const char *syncs[2] = {
      [SYN_REPORT] = "Report",            [SYN_CONFIG] = "Config",
};
static const char *keys[KEY_MAX + 1] = {
      [KEY_RESERVED] = "Reserved",        [KEY_ESC] = "Esc",
      [KEY_1] = "1",                      [KEY_2] = "2",
      [KEY_3] = "3",                      [KEY_4] = "4",
      [KEY_5] = "5",                      [KEY_6] = "6",
      [KEY_7] = "7",                      [KEY_8] = "8",
      [KEY_9] = "9",                      [KEY_0] = "0",
      [KEY_MINUS] = "Minus",              [KEY_EQUAL] = "Equal",
      [KEY_BACKSPACE] = "Backspace",            [KEY_TAB] = "Tab",
      [KEY_Q] = "Q",                      [KEY_W] = "W",
      [KEY_E] = "E",                      [KEY_R] = "R",
      [KEY_T] = "T",                      [KEY_Y] = "Y",
      [KEY_U] = "U",                      [KEY_I] = "I",
      [KEY_O] = "O",                      [KEY_P] = "P",
      [KEY_LEFTBRACE] = "LeftBrace",            [KEY_RIGHTBRACE] = "RightBrace",
      [KEY_ENTER] = "Enter",              [KEY_LEFTCTRL] = "LeftControl",
      [KEY_A] = "A",                      [KEY_S] = "S",
      [KEY_D] = "D",                      [KEY_F] = "F",
      [KEY_G] = "G",                      [KEY_H] = "H",
      [KEY_J] = "J",                      [KEY_K] = "K",
      [KEY_L] = "L",                      [KEY_SEMICOLON] = "Semicolon",
      [KEY_APOSTROPHE] = "Apostrophe",    [KEY_GRAVE] = "Grave",
      [KEY_LEFTSHIFT] = "LeftShift",            [KEY_BACKSLASH] = "BackSlash",
      [KEY_Z] = "Z",                      [KEY_X] = "X",
      [KEY_C] = "C",                      [KEY_V] = "V",
      [KEY_B] = "B",                      [KEY_N] = "N",
      [KEY_M] = "M",                      [KEY_COMMA] = "Comma",
      [KEY_DOT] = "Dot",                  [KEY_SLASH] = "Slash",
      [KEY_RIGHTSHIFT] = "RightShift",    [KEY_KPASTERISK] = "KPAsterisk",
      [KEY_LEFTALT] = "LeftAlt",          [KEY_SPACE] = "Space",
      [KEY_CAPSLOCK] = "CapsLock",        [KEY_F1] = "F1",
      [KEY_F2] = "F2",              [KEY_F3] = "F3",
      [KEY_F4] = "F4",              [KEY_F5] = "F5",
      [KEY_F6] = "F6",              [KEY_F7] = "F7",
      [KEY_F8] = "F8",              [KEY_F9] = "F9",
      [KEY_F10] = "F10",                  [KEY_NUMLOCK] = "NumLock",
      [KEY_SCROLLLOCK] = "ScrollLock",    [KEY_KP7] = "KP7",
      [KEY_KP8] = "KP8",                  [KEY_KP9] = "KP9",
      [KEY_KPMINUS] = "KPMinus",          [KEY_KP4] = "KP4",
      [KEY_KP5] = "KP5",                  [KEY_KP6] = "KP6",
      [KEY_KPPLUS] = "KPPlus",            [KEY_KP1] = "KP1",
      [KEY_KP2] = "KP2",                  [KEY_KP3] = "KP3",
      [KEY_KP0] = "KP0",                  [KEY_KPDOT] = "KPDot",
      [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
      [KEY_F11] = "F11",                  [KEY_F12] = "F12",
      [KEY_RO] = "RO",              [KEY_KATAKANA] = "Katakana",
      [KEY_HIRAGANA] = "HIRAGANA",        [KEY_HENKAN] = "Henkan",
      [KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan",
      [KEY_KPJPCOMMA] = "KPJpComma",            [KEY_KPENTER] = "KPEnter",
      [KEY_RIGHTCTRL] = "RightCtrl",            [KEY_KPSLASH] = "KPSlash",
      [KEY_SYSRQ] = "SysRq",              [KEY_RIGHTALT] = "RightAlt",
      [KEY_LINEFEED] = "LineFeed",        [KEY_HOME] = "Home",
      [KEY_UP] = "Up",              [KEY_PAGEUP] = "PageUp",
      [KEY_LEFT] = "Left",                [KEY_RIGHT] = "Right",
      [KEY_END] = "End",                  [KEY_DOWN] = "Down",
      [KEY_PAGEDOWN] = "PageDown",        [KEY_INSERT] = "Insert",
      [KEY_DELETE] = "Delete",            [KEY_MACRO] = "Macro",
      [KEY_MUTE] = "Mute",                [KEY_VOLUMEDOWN] = "VolumeDown",
      [KEY_VOLUMEUP] = "VolumeUp",        [KEY_POWER] = "Power",
      [KEY_KPEQUAL] = "KPEqual",          [KEY_KPPLUSMINUS] = "KPPlusMinus",
      [KEY_PAUSE] = "Pause",              [KEY_KPCOMMA] = "KPComma",
      [KEY_HANGUEL] = "Hangeul",          [KEY_HANJA] = "Hanja",
      [KEY_YEN] = "Yen",                  [KEY_LEFTMETA] = "LeftMeta",
      [KEY_RIGHTMETA] = "RightMeta",            [KEY_COMPOSE] = "Compose",
      [KEY_STOP] = "Stop",                [KEY_AGAIN] = "Again",
      [KEY_PROPS] = "Props",              [KEY_UNDO] = "Undo",
      [KEY_FRONT] = "Front",              [KEY_COPY] = "Copy",
      [KEY_OPEN] = "Open",                [KEY_PASTE] = "Paste",
      [KEY_FIND] = "Find",                [KEY_CUT] = "Cut",
      [KEY_HELP] = "Help",                [KEY_MENU] = "Menu",
      [KEY_CALC] = "Calc",                [KEY_SETUP] = "Setup",
      [KEY_SLEEP] = "Sleep",              [KEY_WAKEUP] = "WakeUp",
      [KEY_FILE] = "File",                [KEY_SENDFILE] = "SendFile",
      [KEY_DELETEFILE] = "DeleteFile",    [KEY_XFER] = "X-fer",
      [KEY_PROG1] = "Prog1",              [KEY_PROG2] = "Prog2",
      [KEY_WWW] = "WWW",                  [KEY_MSDOS] = "MSDOS",
      [KEY_COFFEE] = "Coffee",            [KEY_DIRECTION] = "Direction",
      [KEY_CYCLEWINDOWS] = "CycleWindows",      [KEY_MAIL] = "Mail",
      [KEY_BOOKMARKS] = "Bookmarks",            [KEY_COMPUTER] = "Computer",
      [KEY_BACK] = "Back",                [KEY_FORWARD] = "Forward",
      [KEY_CLOSECD] = "CloseCD",          [KEY_EJECTCD] = "EjectCD",
      [KEY_EJECTCLOSECD] = "EjectCloseCD",      [KEY_NEXTSONG] = "NextSong",
      [KEY_PLAYPAUSE] = "PlayPause",            [KEY_PREVIOUSSONG] = "PreviousSong",
      [KEY_STOPCD] = "StopCD",            [KEY_RECORD] = "Record",
      [KEY_REWIND] = "Rewind",            [KEY_PHONE] = "Phone",
      [KEY_ISO] = "ISOKey",               [KEY_CONFIG] = "Config",
      [KEY_HOMEPAGE] = "HomePage",        [KEY_REFRESH] = "Refresh",
      [KEY_EXIT] = "Exit",                [KEY_MOVE] = "Move",
      [KEY_EDIT] = "Edit",                [KEY_SCROLLUP] = "ScrollUp",
      [KEY_SCROLLDOWN] = "ScrollDown",    [KEY_KPLEFTPAREN] = "KPLeftParenthesis",
      [KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_NEW] = "New",
      [KEY_REDO] = "Redo",                [KEY_F13] = "F13",
      [KEY_F14] = "F14",                  [KEY_F15] = "F15",
      [KEY_F16] = "F16",                  [KEY_F17] = "F17",
      [KEY_F18] = "F18",                  [KEY_F19] = "F19",
      [KEY_F20] = "F20",                  [KEY_F21] = "F21",
      [KEY_F22] = "F22",                  [KEY_F23] = "F23",
      [KEY_F24] = "F24",                  [KEY_PLAYCD] = "PlayCD",
      [KEY_PAUSECD] = "PauseCD",          [KEY_PROG3] = "Prog3",
      [KEY_PROG4] = "Prog4",              [KEY_SUSPEND] = "Suspend",
      [KEY_CLOSE] = "Close",              [KEY_PLAY] = "Play",
      [KEY_FASTFORWARD] = "FastForward",  [KEY_BASSBOOST] = "BassBoost",
      [KEY_PRINT] = "Print",              [KEY_HP] = "HP",
      [KEY_CAMERA] = "Camera",            [KEY_SOUND] = "Sound",
      [KEY_QUESTION] = "Question",        [KEY_EMAIL] = "Email",
      [KEY_CHAT] = "Chat",                [KEY_SEARCH] = "Search",
      [KEY_CONNECT] = "Connect",          [KEY_FINANCE] = "Finance",
      [KEY_SPORT] = "Sport",              [KEY_SHOP] = "Shop",
      [KEY_ALTERASE] = "AlternateErase",  [KEY_CANCEL] = "Cancel",
      [KEY_BRIGHTNESSDOWN] = "BrightnessDown", [KEY_BRIGHTNESSUP] = "BrightnessUp",
      [KEY_MEDIA] = "Media",              [KEY_UNKNOWN] = "Unknown",
      [BTN_0] = "Btn0",             [BTN_1] = "Btn1",
      [BTN_2] = "Btn2",             [BTN_3] = "Btn3",
      [BTN_4] = "Btn4",             [BTN_5] = "Btn5",
      [BTN_6] = "Btn6",             [BTN_7] = "Btn7",
      [BTN_8] = "Btn8",             [BTN_9] = "Btn9",
      [BTN_LEFT] = "LeftBtn",             [BTN_RIGHT] = "RightBtn",
      [BTN_MIDDLE] = "MiddleBtn",         [BTN_SIDE] = "SideBtn",
      [BTN_EXTRA] = "ExtraBtn",           [BTN_FORWARD] = "ForwardBtn",
      [BTN_BACK] = "BackBtn",             [BTN_TASK] = "TaskBtn",
      [BTN_TRIGGER] = "Trigger",          [BTN_THUMB] = "ThumbBtn",
      [BTN_THUMB2] = "ThumbBtn2",         [BTN_TOP] = "TopBtn",
      [BTN_TOP2] = "TopBtn2",             [BTN_PINKIE] = "PinkieBtn",
      [BTN_BASE] = "BaseBtn",             [BTN_BASE2] = "BaseBtn2",
      [BTN_BASE3] = "BaseBtn3",           [BTN_BASE4] = "BaseBtn4",
      [BTN_BASE5] = "BaseBtn5",           [BTN_BASE6] = "BaseBtn6",
      [BTN_DEAD] = "BtnDead",             [BTN_A] = "BtnA",
      [BTN_B] = "BtnB",             [BTN_C] = "BtnC",
      [BTN_X] = "BtnX",             [BTN_Y] = "BtnY",
      [BTN_Z] = "BtnZ",             [BTN_TL] = "BtnTL",
      [BTN_TR] = "BtnTR",                 [BTN_TL2] = "BtnTL2",
      [BTN_TR2] = "BtnTR2",               [BTN_SELECT] = "BtnSelect",
      [BTN_START] = "BtnStart",           [BTN_MODE] = "BtnMode",
      [BTN_THUMBL] = "BtnThumbL",         [BTN_THUMBR] = "BtnThumbR",
      [BTN_TOOL_PEN] = "ToolPen",         [BTN_TOOL_RUBBER] = "ToolRubber",
      [BTN_TOOL_BRUSH] = "ToolBrush",           [BTN_TOOL_PENCIL] = "ToolPencil",
      [BTN_TOOL_AIRBRUSH] = "ToolAirbrush",     [BTN_TOOL_FINGER] = "ToolFinger",
      [BTN_TOOL_MOUSE] = "ToolMouse",           [BTN_TOOL_LENS] = "ToolLens",
      [BTN_TOUCH] = "Touch",              [BTN_STYLUS] = "Stylus",
      [BTN_STYLUS2] = "Stylus2",          [BTN_TOOL_DOUBLETAP] = "ToolDoubleTap",
      [BTN_TOOL_TRIPLETAP] = "ToolTripleTap", [BTN_GEAR_DOWN] = "WheelBtn",
      [BTN_GEAR_UP] = "Gear up",          [KEY_OK] = "Ok",
      [KEY_SELECT] = "Select",            [KEY_GOTO] = "Goto",
      [KEY_CLEAR] = "Clear",              [KEY_POWER2] = "Power2",
      [KEY_OPTION] = "Option",            [KEY_INFO] = "Info",
      [KEY_TIME] = "Time",                [KEY_VENDOR] = "Vendor",
      [KEY_ARCHIVE] = "Archive",          [KEY_PROGRAM] = "Program",
      [KEY_CHANNEL] = "Channel",          [KEY_FAVORITES] = "Favorites",
      [KEY_EPG] = "EPG",                  [KEY_PVR] = "PVR",
      [KEY_MHP] = "MHP",                  [KEY_LANGUAGE] = "Language",
      [KEY_TITLE] = "Title",              [KEY_SUBTITLE] = "Subtitle",
      [KEY_ANGLE] = "Angle",              [KEY_ZOOM] = "Zoom",
      [KEY_MODE] = "Mode",                [KEY_KEYBOARD] = "Keyboard",
      [KEY_SCREEN] = "Screen",            [KEY_PC] = "PC",
      [KEY_TV] = "TV",              [KEY_TV2] = "TV2",
      [KEY_VCR] = "VCR",                  [KEY_VCR2] = "VCR2",
      [KEY_SAT] = "Sat",                  [KEY_SAT2] = "Sat2",
      [KEY_CD] = "CD",              [KEY_TAPE] = "Tape",
      [KEY_RADIO] = "Radio",              [KEY_TUNER] = "Tuner",
      [KEY_PLAYER] = "Player",            [KEY_TEXT] = "Text",
      [KEY_DVD] = "DVD",                  [KEY_AUX] = "Aux",
      [KEY_MP3] = "MP3",                  [KEY_AUDIO] = "Audio",
      [KEY_VIDEO] = "Video",              [KEY_DIRECTORY] = "Directory",
      [KEY_LIST] = "List",                [KEY_MEMO] = "Memo",
      [KEY_CALENDAR] = "Calendar",        [KEY_RED] = "Red",
      [KEY_GREEN] = "Green",              [KEY_YELLOW] = "Yellow",
      [KEY_BLUE] = "Blue",                [KEY_CHANNELUP] = "ChannelUp",
      [KEY_CHANNELDOWN] = "ChannelDown",  [KEY_FIRST] = "First",
      [KEY_LAST] = "Last",                [KEY_AB] = "AB",
      [KEY_NEXT] = "Next",                [KEY_RESTART] = "Restart",
      [KEY_SLOW] = "Slow",                [KEY_SHUFFLE] = "Shuffle",
      [KEY_BREAK] = "Break",              [KEY_PREVIOUS] = "Previous",
      [KEY_DIGITS] = "Digits",            [KEY_TEEN] = "TEEN",
      [KEY_TWEN] = "TWEN",                [KEY_DEL_EOL] = "DeleteEOL",
      [KEY_DEL_EOS] = "DeleteEOS",        [KEY_INS_LINE] = "InsertLine",
      [KEY_DEL_LINE] = "DeleteLine",
      [KEY_SEND] = "Send",                [KEY_REPLY] = "Reply",
      [KEY_FORWARDMAIL] = "ForwardMail",  [KEY_SAVE] = "Save",
      [KEY_DOCUMENTS] = "Documents",            [KEY_SPELLCHECK] = "SpellCheck",
      [KEY_LOGOFF] = "Logoff",
      [KEY_FN] = "Fn",              [KEY_FN_ESC] = "Fn+ESC",
      [KEY_FN_1] = "Fn+1",                [KEY_FN_2] = "Fn+2",
      [KEY_FN_B] = "Fn+B",                [KEY_FN_D] = "Fn+D",
      [KEY_FN_E] = "Fn+E",                [KEY_FN_F] = "Fn+F",
      [KEY_FN_S] = "Fn+S",
      [KEY_FN_F1] = "Fn+F1",              [KEY_FN_F2] = "Fn+F2",
      [KEY_FN_F3] = "Fn+F3",              [KEY_FN_F4] = "Fn+F4",
      [KEY_FN_F5] = "Fn+F5",              [KEY_FN_F6] = "Fn+F6",
      [KEY_FN_F7] = "Fn+F7",              [KEY_FN_F8] = "Fn+F8",
      [KEY_FN_F9] = "Fn+F9",              [KEY_FN_F10] = "Fn+F10",
      [KEY_FN_F11] = "Fn+F11",            [KEY_FN_F12] = "Fn+F12",
      [KEY_KBDILLUMTOGGLE] = "KbdIlluminationToggle",
      [KEY_KBDILLUMDOWN] = "KbdIlluminationDown",
      [KEY_KBDILLUMUP] = "KbdIlluminationUp",
      [KEY_SWITCHVIDEOMODE] = "SwitchVideoMode",
};

static const char *relatives[REL_MAX + 1] = {
      [REL_X] = "X",                [REL_Y] = "Y",
      [REL_Z] = "Z",                [REL_RX] = "Rx",
      [REL_RY] = "Ry",        [REL_RZ] = "Rz",
      [REL_HWHEEL] = "HWheel",      [REL_DIAL] = "Dial",
      [REL_WHEEL] = "Wheel",        [REL_MISC] = "Misc",
};

static const char *absolutes[ABS_MAX + 1] = {
      [ABS_X] = "X",                [ABS_Y] = "Y",
      [ABS_Z] = "Z",                [ABS_RX] = "Rx",
      [ABS_RY] = "Ry",        [ABS_RZ] = "Rz",
      [ABS_THROTTLE] = "Throttle",  [ABS_RUDDER] = "Rudder",
      [ABS_WHEEL] = "Wheel",        [ABS_GAS] = "Gas",
      [ABS_BRAKE] = "Brake",        [ABS_HAT0X] = "Hat0X",
      [ABS_HAT0Y] = "Hat0Y",        [ABS_HAT1X] = "Hat1X",
      [ABS_HAT1Y] = "Hat1Y",        [ABS_HAT2X] = "Hat2X",
      [ABS_HAT2Y] = "Hat2Y",        [ABS_HAT3X] = "Hat3X",
      [ABS_HAT3Y] = "Hat 3Y",       [ABS_PRESSURE] = "Pressure",
      [ABS_DISTANCE] = "Distance",  [ABS_TILT_X] = "XTilt",
      [ABS_TILT_Y] = "YTilt",       [ABS_TOOL_WIDTH] = "Tool Width",
      [ABS_VOLUME] = "Volume",      [ABS_MISC] = "Misc",
};

static const char *misc[MSC_MAX + 1] = {
      [MSC_SERIAL] = "Serial",      [MSC_PULSELED] = "Pulseled",
      [MSC_GESTURE] = "Gesture",    [MSC_RAW] = "RawData"
};

static const char *leds[LED_MAX + 1] = {
      [LED_NUML] = "NumLock",       [LED_CAPSL] = "CapsLock",
      [LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose",
      [LED_KANA] = "Kana",          [LED_SLEEP] = "Sleep",
      [LED_SUSPEND] = "Suspend",    [LED_MUTE] = "Mute",
      [LED_MISC] = "Misc",
};

static const char *repeats[REP_MAX + 1] = {
      [REP_DELAY] = "Delay",        [REP_PERIOD] = "Period"
};

static const char *sounds[SND_MAX + 1] = {
      [SND_CLICK] = "Click",        [SND_BELL] = "Bell",
      [SND_TONE] = "Tone"
};

static const char **names[EV_MAX + 1] = {
      [EV_SYN] = syncs,             [EV_KEY] = keys,
      [EV_REL] = relatives,               [EV_ABS] = absolutes,
      [EV_MSC] = misc,              [EV_LED] = leds,
      [EV_SND] = sounds,                  [EV_REP] = repeats,
};

void hid_resolv_event(__u8 type, __u16 code) {

      if (!hid_debug)
            return;

      printk("%s.%s", events[type] ? events[type] : "?",
            names[type] ? (names[type][code] ? names[type][code] : "?") : "?");
}
EXPORT_SYMBOL_GPL(hid_resolv_event);

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