SAFE public projects git trees. - safe/jmp/linux-2.6/blob - drivers/hid/hid-debug.c

   1 /*
   2  *  (c) 1999 Andreas Gal                <gal@cs.uni-magdeburg.de>
   3  *  (c) 2000-2001 Vojtech Pavlik        <vojtech@ucw.cz>
   4  *  (c) 2007-2009 Jiri Kosina
   5  *
   6  *  HID debugging support
   7  */
   8
   9 /*
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  23  *
  24  * Should you need to contact me, the author, you can do so either by
  25  * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
  26  * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
  27  */
  28
  29 #include <linux/debugfs.h>
  30 #include <linux/seq_file.h>
  31 #include <linux/hid.h>
  32 #include <linux/hid-debug.h>
  33
  34 static struct dentry *hid_debug_root;
  35
  36 struct hid_usage_entry {
  37         unsigned  page;
  38         unsigned  usage;
  39         const char     *description;
  40 };
  41
  42 static const struct hid_usage_entry hid_usage_table[] = {
  43   {  0,      0, "Undefined" },
  44   {  1,      0, "GenericDesktop" },
  45     {0, 0x01, "Pointer"},
  46     {0, 0x02, "Mouse"},
  47     {0, 0x04, "Joystick"},
  48     {0, 0x05, "GamePad"},
  49     {0, 0x06, "Keyboard"},
  50     {0, 0x07, "Keypad"},
  51     {0, 0x08, "MultiAxis"},
  52       {0, 0x30, "X"},
  53       {0, 0x31, "Y"},
  54       {0, 0x32, "Z"},
  55       {0, 0x33, "Rx"},
  56       {0, 0x34, "Ry"},
  57       {0, 0x35, "Rz"},
  58       {0, 0x36, "Slider"},
  59       {0, 0x37, "Dial"},
  60       {0, 0x38, "Wheel"},
  61       {0, 0x39, "HatSwitch"},
  62     {0, 0x3a, "CountedBuffer"},
  63       {0, 0x3b, "ByteCount"},
  64       {0, 0x3c, "MotionWakeup"},
  65       {0, 0x3d, "Start"},
  66       {0, 0x3e, "Select"},
  67       {0, 0x40, "Vx"},
  68       {0, 0x41, "Vy"},
  69       {0, 0x42, "Vz"},
  70       {0, 0x43, "Vbrx"},
  71       {0, 0x44, "Vbry"},
  72       {0, 0x45, "Vbrz"},
  73       {0, 0x46, "Vno"},
  74     {0, 0x80, "SystemControl"},
  75       {0, 0x81, "SystemPowerDown"},
  76       {0, 0x82, "SystemSleep"},
  77       {0, 0x83, "SystemWakeUp"},
  78       {0, 0x84, "SystemContextMenu"},
  79       {0, 0x85, "SystemMainMenu"},
  80       {0, 0x86, "SystemAppMenu"},
  81       {0, 0x87, "SystemMenuHelp"},
  82       {0, 0x88, "SystemMenuExit"},
  83       {0, 0x89, "SystemMenuSelect"},
  84       {0, 0x8a, "SystemMenuRight"},
  85       {0, 0x8b, "SystemMenuLeft"},
  86       {0, 0x8c, "SystemMenuUp"},
  87       {0, 0x8d, "SystemMenuDown"},
  88       {0, 0x90, "D-PadUp"},
  89       {0, 0x91, "D-PadDown"},
  90       {0, 0x92, "D-PadRight"},
  91       {0, 0x93, "D-PadLeft"},
  92   {  2, 0, "Simulation" },
  93       {0, 0xb0, "Aileron"},
  94       {0, 0xb1, "AileronTrim"},
  95       {0, 0xb2, "Anti-Torque"},
  96       {0, 0xb3, "Autopilot"},
  97       {0, 0xb4, "Chaff"},
  98       {0, 0xb5, "Collective"},
  99       {0, 0xb6, "DiveBrake"},
 100       {0, 0xb7, "ElectronicCountermeasures"},
 101       {0, 0xb8, "Elevator"},
 102       {0, 0xb9, "ElevatorTrim"},
 103       {0, 0xba, "Rudder"},
 104       {0, 0xbb, "Throttle"},
 105       {0, 0xbc, "FlightCommunications"},
 106       {0, 0xbd, "FlareRelease"},
 107       {0, 0xbe, "LandingGear"},
 108       {0, 0xbf, "ToeBrake"},
 109   {  7, 0, "Keyboard" },
 110   {  8, 0, "LED" },
 111       {0, 0x01, "NumLock"},
 112       {0, 0x02, "CapsLock"},
 113       {0, 0x03, "ScrollLock"},
 114       {0, 0x04, "Compose"},
 115       {0, 0x05, "Kana"},
 116       {0, 0x4b, "GenericIndicator"},
 117   {  9, 0, "Button" },
 118   { 10, 0, "Ordinal" },
 119   { 12, 0, "Consumer" },
 120       {0, 0x238, "HorizontalWheel"},
 121   { 13, 0, "Digitizers" },
 122     {0, 0x01, "Digitizer"},
 123     {0, 0x02, "Pen"},
 124     {0, 0x03, "LightPen"},
 125     {0, 0x04, "TouchScreen"},
 126     {0, 0x05, "TouchPad"},
 127     {0, 0x20, "Stylus"},
 128     {0, 0x21, "Puck"},
 129     {0, 0x22, "Finger"},
 130     {0, 0x30, "TipPressure"},
 131     {0, 0x31, "BarrelPressure"},
 132     {0, 0x32, "InRange"},
 133     {0, 0x33, "Touch"},
 134     {0, 0x34, "UnTouch"},
 135     {0, 0x35, "Tap"},
 136     {0, 0x39, "TabletFunctionKey"},
 137     {0, 0x3a, "ProgramChangeKey"},
 138     {0, 0x3c, "Invert"},
 139     {0, 0x42, "TipSwitch"},
 140     {0, 0x43, "SecondaryTipSwitch"},
 141     {0, 0x44, "BarrelSwitch"},
 142     {0, 0x45, "Eraser"},
 143     {0, 0x46, "TabletPick"},
 144   { 15, 0, "PhysicalInterfaceDevice" },
 145     {0, 0x00, "Undefined"},
 146     {0, 0x01, "Physical_Interface_Device"},
 147       {0, 0x20, "Normal"},
 148     {0, 0x21, "Set_Effect_Report"},
 149       {0, 0x22, "Effect_Block_Index"},
 150       {0, 0x23, "Parameter_Block_Offset"},
 151       {0, 0x24, "ROM_Flag"},
 152       {0, 0x25, "Effect_Type"},
 153         {0, 0x26, "ET_Constant_Force"},
 154         {0, 0x27, "ET_Ramp"},
 155         {0, 0x28, "ET_Custom_Force_Data"},
 156         {0, 0x30, "ET_Square"},
 157         {0, 0x31, "ET_Sine"},
 158         {0, 0x32, "ET_Triangle"},
 159         {0, 0x33, "ET_Sawtooth_Up"},
 160         {0, 0x34, "ET_Sawtooth_Down"},
 161         {0, 0x40, "ET_Spring"},
 162         {0, 0x41, "ET_Damper"},
 163         {0, 0x42, "ET_Inertia"},
 164         {0, 0x43, "ET_Friction"},
 165       {0, 0x50, "Duration"},
 166       {0, 0x51, "Sample_Period"},
 167       {0, 0x52, "Gain"},
 168       {0, 0x53, "Trigger_Button"},
 169       {0, 0x54, "Trigger_Repeat_Interval"},
 170       {0, 0x55, "Axes_Enable"},
 171         {0, 0x56, "Direction_Enable"},
 172       {0, 0x57, "Direction"},
 173       {0, 0x58, "Type_Specific_Block_Offset"},
 174         {0, 0x59, "Block_Type"},
 175         {0, 0x5A, "Set_Envelope_Report"},
 176           {0, 0x5B, "Attack_Level"},
 177           {0, 0x5C, "Attack_Time"},
 178           {0, 0x5D, "Fade_Level"},
 179           {0, 0x5E, "Fade_Time"},
 180         {0, 0x5F, "Set_Condition_Report"},
 181         {0, 0x60, "CP_Offset"},
 182         {0, 0x61, "Positive_Coefficient"},
 183         {0, 0x62, "Negative_Coefficient"},
 184         {0, 0x63, "Positive_Saturation"},
 185         {0, 0x64, "Negative_Saturation"},
 186         {0, 0x65, "Dead_Band"},
 187       {0, 0x66, "Download_Force_Sample"},
 188       {0, 0x67, "Isoch_Custom_Force_Enable"},
 189       {0, 0x68, "Custom_Force_Data_Report"},
 190         {0, 0x69, "Custom_Force_Data"},
 191         {0, 0x6A, "Custom_Force_Vendor_Defined_Data"},
 192       {0, 0x6B, "Set_Custom_Force_Report"},
 193         {0, 0x6C, "Custom_Force_Data_Offset"},
 194         {0, 0x6D, "Sample_Count"},
 195       {0, 0x6E, "Set_Periodic_Report"},
 196         {0, 0x6F, "Offset"},
 197         {0, 0x70, "Magnitude"},
 198         {0, 0x71, "Phase"},
 199         {0, 0x72, "Period"},
 200       {0, 0x73, "Set_Constant_Force_Report"},
 201         {0, 0x74, "Set_Ramp_Force_Report"},
 202         {0, 0x75, "Ramp_Start"},
 203         {0, 0x76, "Ramp_End"},
 204       {0, 0x77, "Effect_Operation_Report"},
 205         {0, 0x78, "Effect_Operation"},
 206           {0, 0x79, "Op_Effect_Start"},
 207           {0, 0x7A, "Op_Effect_Start_Solo"},
 208           {0, 0x7B, "Op_Effect_Stop"},
 209           {0, 0x7C, "Loop_Count"},
 210       {0, 0x7D, "Device_Gain_Report"},
 211         {0, 0x7E, "Device_Gain"},
 212     {0, 0x7F, "PID_Pool_Report"},
 213       {0, 0x80, "RAM_Pool_Size"},
 214       {0, 0x81, "ROM_Pool_Size"},
 215       {0, 0x82, "ROM_Effect_Block_Count"},
 216       {0, 0x83, "Simultaneous_Effects_Max"},
 217       {0, 0x84, "Pool_Alignment"},
 218     {0, 0x85, "PID_Pool_Move_Report"},
 219       {0, 0x86, "Move_Source"},
 220       {0, 0x87, "Move_Destination"},
 221       {0, 0x88, "Move_Length"},
 222     {0, 0x89, "PID_Block_Load_Report"},
 223       {0, 0x8B, "Block_Load_Status"},
 224       {0, 0x8C, "Block_Load_Success"},
 225       {0, 0x8D, "Block_Load_Full"},
 226       {0, 0x8E, "Block_Load_Error"},
 227       {0, 0x8F, "Block_Handle"},
 228       {0, 0x90, "PID_Block_Free_Report"},
 229       {0, 0x91, "Type_Specific_Block_Handle"},
 230     {0, 0x92, "PID_State_Report"},
 231       {0, 0x94, "Effect_Playing"},
 232       {0, 0x95, "PID_Device_Control_Report"},
 233         {0, 0x96, "PID_Device_Control"},
 234         {0, 0x97, "DC_Enable_Actuators"},
 235         {0, 0x98, "DC_Disable_Actuators"},
 236         {0, 0x99, "DC_Stop_All_Effects"},
 237         {0, 0x9A, "DC_Device_Reset"},
 238         {0, 0x9B, "DC_Device_Pause"},
 239         {0, 0x9C, "DC_Device_Continue"},
 240       {0, 0x9F, "Device_Paused"},
 241       {0, 0xA0, "Actuators_Enabled"},
 242       {0, 0xA4, "Safety_Switch"},
 243       {0, 0xA5, "Actuator_Override_Switch"},
 244       {0, 0xA6, "Actuator_Power"},
 245     {0, 0xA7, "Start_Delay"},
 246     {0, 0xA8, "Parameter_Block_Size"},
 247     {0, 0xA9, "Device_Managed_Pool"},
 248     {0, 0xAA, "Shared_Parameter_Blocks"},
 249     {0, 0xAB, "Create_New_Effect_Report"},
 250     {0, 0xAC, "RAM_Pool_Available"},
 251   { 0x84, 0, "Power Device" },
 252     { 0x84, 0x02, "PresentStatus" },
 253     { 0x84, 0x03, "ChangeStatus" },
 254     { 0x84, 0x04, "UPS" },
 255     { 0x84, 0x05, "PowerSupply" },
 256     { 0x84, 0x10, "BatterySystem" },
 257     { 0x84, 0x11, "BatterySystemID" },
 258     { 0x84, 0x12, "Battery" },
 259     { 0x84, 0x13, "BatteryID" },
 260     { 0x84, 0x14, "Charger" },
 261     { 0x84, 0x15, "ChargerID" },
 262     { 0x84, 0x16, "PowerConverter" },
 263     { 0x84, 0x17, "PowerConverterID" },
 264     { 0x84, 0x18, "OutletSystem" },
 265     { 0x84, 0x19, "OutletSystemID" },
 266     { 0x84, 0x1a, "Input" },
 267     { 0x84, 0x1b, "InputID" },
 268     { 0x84, 0x1c, "Output" },
 269     { 0x84, 0x1d, "OutputID" },
 270     { 0x84, 0x1e, "Flow" },
 271     { 0x84, 0x1f, "FlowID" },
 272     { 0x84, 0x20, "Outlet" },
 273     { 0x84, 0x21, "OutletID" },
 274     { 0x84, 0x22, "Gang" },
 275     { 0x84, 0x24, "PowerSummary" },
 276     { 0x84, 0x25, "PowerSummaryID" },
 277     { 0x84, 0x30, "Voltage" },
 278     { 0x84, 0x31, "Current" },
 279     { 0x84, 0x32, "Frequency" },
 280     { 0x84, 0x33, "ApparentPower" },
 281     { 0x84, 0x35, "PercentLoad" },
 282     { 0x84, 0x40, "ConfigVoltage" },
 283     { 0x84, 0x41, "ConfigCurrent" },
 284     { 0x84, 0x43, "ConfigApparentPower" },
 285     { 0x84, 0x53, "LowVoltageTransfer" },
 286     { 0x84, 0x54, "HighVoltageTransfer" },
 287     { 0x84, 0x56, "DelayBeforeStartup" },
 288     { 0x84, 0x57, "DelayBeforeShutdown" },
 289     { 0x84, 0x58, "Test" },
 290     { 0x84, 0x5a, "AudibleAlarmControl" },
 291     { 0x84, 0x60, "Present" },
 292     { 0x84, 0x61, "Good" },
 293     { 0x84, 0x62, "InternalFailure" },
 294     { 0x84, 0x65, "Overload" },
 295     { 0x84, 0x66, "OverCharged" },
 296     { 0x84, 0x67, "OverTemperature" },
 297     { 0x84, 0x68, "ShutdownRequested" },
 298     { 0x84, 0x69, "ShutdownImminent" },
 299     { 0x84, 0x6b, "SwitchOn/Off" },
 300     { 0x84, 0x6c, "Switchable" },
 301     { 0x84, 0x6d, "Used" },
 302     { 0x84, 0x6e, "Boost" },
 303     { 0x84, 0x73, "CommunicationLost" },
 304     { 0x84, 0xfd, "iManufacturer" },
 305     { 0x84, 0xfe, "iProduct" },
 306     { 0x84, 0xff, "iSerialNumber" },
 307   { 0x85, 0, "Battery System" },
 308     { 0x85, 0x01, "SMBBatteryMode" },
 309     { 0x85, 0x02, "SMBBatteryStatus" },
 310     { 0x85, 0x03, "SMBAlarmWarning" },
 311     { 0x85, 0x04, "SMBChargerMode" },
 312     { 0x85, 0x05, "SMBChargerStatus" },
 313     { 0x85, 0x06, "SMBChargerSpecInfo" },
 314     { 0x85, 0x07, "SMBSelectorState" },
 315     { 0x85, 0x08, "SMBSelectorPresets" },
 316     { 0x85, 0x09, "SMBSelectorInfo" },
 317     { 0x85, 0x29, "RemainingCapacityLimit" },
 318     { 0x85, 0x2c, "CapacityMode" },
 319     { 0x85, 0x42, "BelowRemainingCapacityLimit" },
 320     { 0x85, 0x44, "Charging" },
 321     { 0x85, 0x45, "Discharging" },
 322     { 0x85, 0x4b, "NeedReplacement" },
 323     { 0x85, 0x66, "RemainingCapacity" },
 324     { 0x85, 0x68, "RunTimeToEmpty" },
 325     { 0x85, 0x6a, "AverageTimeToFull" },
 326     { 0x85, 0x83, "DesignCapacity" },
 327     { 0x85, 0x85, "ManufacturerDate" },
 328     { 0x85, 0x89, "iDeviceChemistry" },
 329     { 0x85, 0x8b, "Rechargable" },
 330     { 0x85, 0x8f, "iOEMInformation" },
 331     { 0x85, 0x8d, "CapacityGranularity1" },
 332     { 0x85, 0xd0, "ACPresent" },
 333   /* pages 0xff00 to 0xffff are vendor-specific */
 334   { 0xffff, 0, "Vendor-specific-FF" },
 335   { 0, 0, NULL }
 336 };
 337
 338 static void resolv_usage_page(unsigned page, struct seq_file *f) {
 339         const struct hid_usage_entry *p;
 340
 341         for (p = hid_usage_table; p->description; p++)
 342                 if (p->page == page) {
 343                         if (!f)
 344                                 printk("%s", p->description);
 345                         else
 346                                 seq_printf(f, "%s", p->description);
 347                         return;
 348                 }
 349         if (!f)
 350                 printk("%04x", page);
 351         else
 352                 seq_printf(f, "%04x", page);
 353 }
 354
 355 void hid_resolv_usage(unsigned usage, struct seq_file *f) {
 356         const struct hid_usage_entry *p;
 357
 358         resolv_usage_page(usage >> 16, f);
 359         if (!f)
 360                 printk(".");
 361         else
 362                 seq_printf(f, ".");
 363         for (p = hid_usage_table; p->description; p++)
 364                 if (p->page == (usage >> 16)) {
 365                         for(++p; p->description && p->usage != 0; p++)
 366                                 if (p->usage == (usage & 0xffff)) {
 367                                         if (!f)
 368                                                 printk("%s", p->description);
 369                                         else
 370                                                 seq_printf(f,
 371                                                         "%s",
 372                                                         p->description);
 373                                         return;
 374                                 }
 375                         break;
 376                 }
 377         if (!f)
 378                 printk("%04x", usage & 0xffff);
 379         else
 380                 seq_printf(f, "%04x", usage & 0xffff);
 381 }
 382 EXPORT_SYMBOL_GPL(hid_resolv_usage);
 383
 384 static void tab(int n, struct seq_file *f) {
 385         seq_printf(f, "%*s", n, "");
 386 }
 387
 388 void hid_dump_field(struct hid_field *field, int n, struct seq_file *f) {
 389         int j;
 390
 391         if (field->physical) {
 392                 tab(n, f);
 393                 seq_printf(f, "Physical(");
 394                 hid_resolv_usage(field->physical, f); seq_printf(f, ")\n");
 395         }
 396         if (field->logical) {
 397                 tab(n, f);
 398                 seq_printf(f, "Logical(");
 399                 hid_resolv_usage(field->logical, f); seq_printf(f, ")\n");
 400         }
 401         tab(n, f); seq_printf(f, "Usage(%d)\n", field->maxusage);
 402         for (j = 0; j < field->maxusage; j++) {
 403                 tab(n+2, f); hid_resolv_usage(field->usage[j].hid, f); seq_printf(f, "\n");
 404         }
 405         if (field->logical_minimum != field->logical_maximum) {
 406                 tab(n, f); seq_printf(f, "Logical Minimum(%d)\n", field->logical_minimum);
 407                 tab(n, f); seq_printf(f, "Logical Maximum(%d)\n", field->logical_maximum);
 408         }
 409         if (field->physical_minimum != field->physical_maximum) {
 410                 tab(n, f); seq_printf(f, "Physical Minimum(%d)\n", field->physical_minimum);
 411                 tab(n, f); seq_printf(f, "Physical Maximum(%d)\n", field->physical_maximum);
 412         }
 413         if (field->unit_exponent) {
 414                 tab(n, f); seq_printf(f, "Unit Exponent(%d)\n", field->unit_exponent);
 415         }
 416         if (field->unit) {
 417                 static const char *systems[5] = { "None", "SI Linear", "SI Rotation", "English Linear", "English Rotation" };
 418                 static const char *units[5][8] = {
 419                         { "None", "None", "None", "None", "None", "None", "None", "None" },
 420                         { "None", "Centimeter", "Gram", "Seconds", "Kelvin",     "Ampere", "Candela", "None" },
 421                         { "None", "Radians",    "Gram", "Seconds", "Kelvin",     "Ampere", "Candela", "None" },
 422                         { "None", "Inch",       "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" },
 423                         { "None", "Degrees",    "Slug", "Seconds", "Fahrenheit", "Ampere", "Candela", "None" }
 424                 };
 425
 426                 int i;
 427                 int sys;
 428                 __u32 data = field->unit;
 429
 430                 /* First nibble tells us which system we're in. */
 431                 sys = data & 0xf;
 432                 data >>= 4;
 433
 434                 if(sys > 4) {
 435                         tab(n, f); seq_printf(f, "Unit(Invalid)\n");
 436                 }
 437                 else {
 438                         int earlier_unit = 0;
 439
 440                         tab(n, f); seq_printf(f, "Unit(%s : ", systems[sys]);
 441
 442                         for (i=1 ; i<sizeof(__u32)*2 ; i++) {
 443                                 char nibble = data & 0xf;
 444                                 data >>= 4;
 445                                 if (nibble != 0) {
 446                                         if(earlier_unit++ > 0)
 447                                                 seq_printf(f, "*");
 448                                         seq_printf(f, "%s", units[sys][i]);
 449                                         if(nibble != 1) {
 450                                                 /* This is a _signed_ nibble(!) */
 451
 452                                                 int val = nibble & 0x7;
 453                                                 if(nibble & 0x08)
 454                                                         val = -((0x7 & ~val) +1);
 455                                                 seq_printf(f, "^%d", val);
 456                                         }
 457                                 }
 458                         }
 459                         seq_printf(f, ")\n");
 460                 }
 461         }
 462         tab(n, f); seq_printf(f, "Report Size(%u)\n", field->report_size);
 463         tab(n, f); seq_printf(f, "Report Count(%u)\n", field->report_count);
 464         tab(n, f); seq_printf(f, "Report Offset(%u)\n", field->report_offset);
 465
 466         tab(n, f); seq_printf(f, "Flags( ");
 467         j = field->flags;
 468         seq_printf(f, "%s", HID_MAIN_ITEM_CONSTANT & j ? "Constant " : "");
 469         seq_printf(f, "%s", HID_MAIN_ITEM_VARIABLE & j ? "Variable " : "Array ");
 470         seq_printf(f, "%s", HID_MAIN_ITEM_RELATIVE & j ? "Relative " : "Absolute ");
 471         seq_printf(f, "%s", HID_MAIN_ITEM_WRAP & j ? "Wrap " : "");
 472         seq_printf(f, "%s", HID_MAIN_ITEM_NONLINEAR & j ? "NonLinear " : "");
 473         seq_printf(f, "%s", HID_MAIN_ITEM_NO_PREFERRED & j ? "NoPreferredState " : "");
 474         seq_printf(f, "%s", HID_MAIN_ITEM_NULL_STATE & j ? "NullState " : "");
 475         seq_printf(f, "%s", HID_MAIN_ITEM_VOLATILE & j ? "Volatile " : "");
 476         seq_printf(f, "%s", HID_MAIN_ITEM_BUFFERED_BYTE & j ? "BufferedByte " : "");
 477         seq_printf(f, ")\n");
 478 }
 479 EXPORT_SYMBOL_GPL(hid_dump_field);
 480
 481 void hid_dump_device(struct hid_device *device, struct seq_file *f)
 482 {
 483         struct hid_report_enum *report_enum;
 484         struct hid_report *report;
 485         struct list_head *list;
 486         unsigned i,k;
 487         static const char *table[] = {"INPUT", "OUTPUT", "FEATURE"};
 488
 489         for (i = 0; i < HID_REPORT_TYPES; i++) {
 490                 report_enum = device->report_enum + i;
 491                 list = report_enum->report_list.next;
 492                 while (list != &report_enum->report_list) {
 493                         report = (struct hid_report *) list;
 494                         tab(2, f);
 495                         seq_printf(f, "%s", table[i]);
 496                         if (report->id)
 497                                 seq_printf(f, "(%d)", report->id);
 498                         seq_printf(f, "[%s]", table[report->type]);
 499                         seq_printf(f, "\n");
 500                         for (k = 0; k < report->maxfield; k++) {
 501                                 tab(4, f);
 502                                 seq_printf(f, "Field(%d)\n", k);
 503                                 hid_dump_field(report->field[k], 6, f);
 504                         }
 505                         list = list->next;
 506                 }
 507         }
 508 }
 509 EXPORT_SYMBOL_GPL(hid_dump_device);
 510
 511 void hid_dump_input(struct hid_usage *usage, __s32 value) {
 512         if (hid_debug < 2)
 513                 return;
 514
 515         printk(KERN_DEBUG "hid-debug: input ");
 516         hid_resolv_usage(usage->hid, NULL);
 517         printk(" = %d\n", value);
 518 }
 519 EXPORT_SYMBOL_GPL(hid_dump_input);
 520
 521 static const char *events[EV_MAX + 1] = {
 522         [EV_SYN] = "Sync",                      [EV_KEY] = "Key",
 523         [EV_REL] = "Relative",                  [EV_ABS] = "Absolute",
 524         [EV_MSC] = "Misc",                      [EV_LED] = "LED",
 525         [EV_SND] = "Sound",                     [EV_REP] = "Repeat",
 526         [EV_FF] = "ForceFeedback",              [EV_PWR] = "Power",
 527         [EV_FF_STATUS] = "ForceFeedbackStatus",
 528 };
 529
 530 static const char *syncs[2] = {
 531         [SYN_REPORT] = "Report",                [SYN_CONFIG] = "Config",
 532 };
 533 static const char *keys[KEY_MAX + 1] = {
 534         [KEY_RESERVED] = "Reserved",            [KEY_ESC] = "Esc",
 535         [KEY_1] = "1",                          [KEY_2] = "2",
 536         [KEY_3] = "3",                          [KEY_4] = "4",
 537         [KEY_5] = "5",                          [KEY_6] = "6",
 538         [KEY_7] = "7",                          [KEY_8] = "8",
 539         [KEY_9] = "9",                          [KEY_0] = "0",
 540         [KEY_MINUS] = "Minus",                  [KEY_EQUAL] = "Equal",
 541         [KEY_BACKSPACE] = "Backspace",          [KEY_TAB] = "Tab",
 542         [KEY_Q] = "Q",                          [KEY_W] = "W",
 543         [KEY_E] = "E",                          [KEY_R] = "R",
 544         [KEY_T] = "T",                          [KEY_Y] = "Y",
 545         [KEY_U] = "U",                          [KEY_I] = "I",
 546         [KEY_O] = "O",                          [KEY_P] = "P",
 547         [KEY_LEFTBRACE] = "LeftBrace",          [KEY_RIGHTBRACE] = "RightBrace",
 548         [KEY_ENTER] = "Enter",                  [KEY_LEFTCTRL] = "LeftControl",
 549         [KEY_A] = "A",                          [KEY_S] = "S",
 550         [KEY_D] = "D",                          [KEY_F] = "F",
 551         [KEY_G] = "G",                          [KEY_H] = "H",
 552         [KEY_J] = "J",                          [KEY_K] = "K",
 553         [KEY_L] = "L",                          [KEY_SEMICOLON] = "Semicolon",
 554         [KEY_APOSTROPHE] = "Apostrophe",        [KEY_GRAVE] = "Grave",
 555         [KEY_LEFTSHIFT] = "LeftShift",          [KEY_BACKSLASH] = "BackSlash",
 556         [KEY_Z] = "Z",                          [KEY_X] = "X",
 557         [KEY_C] = "C",                          [KEY_V] = "V",
 558         [KEY_B] = "B",                          [KEY_N] = "N",
 559         [KEY_M] = "M",                          [KEY_COMMA] = "Comma",
 560         [KEY_DOT] = "Dot",                      [KEY_SLASH] = "Slash",
 561         [KEY_RIGHTSHIFT] = "RightShift",        [KEY_KPASTERISK] = "KPAsterisk",
 562         [KEY_LEFTALT] = "LeftAlt",              [KEY_SPACE] = "Space",
 563         [KEY_CAPSLOCK] = "CapsLock",            [KEY_F1] = "F1",
 564         [KEY_F2] = "F2",                        [KEY_F3] = "F3",
 565         [KEY_F4] = "F4",                        [KEY_F5] = "F5",
 566         [KEY_F6] = "F6",                        [KEY_F7] = "F7",
 567         [KEY_F8] = "F8",                        [KEY_F9] = "F9",
 568         [KEY_F10] = "F10",                      [KEY_NUMLOCK] = "NumLock",
 569         [KEY_SCROLLLOCK] = "ScrollLock",        [KEY_KP7] = "KP7",
 570         [KEY_KP8] = "KP8",                      [KEY_KP9] = "KP9",
 571         [KEY_KPMINUS] = "KPMinus",              [KEY_KP4] = "KP4",
 572         [KEY_KP5] = "KP5",                      [KEY_KP6] = "KP6",
 573         [KEY_KPPLUS] = "KPPlus",                [KEY_KP1] = "KP1",
 574         [KEY_KP2] = "KP2",                      [KEY_KP3] = "KP3",
 575         [KEY_KP0] = "KP0",                      [KEY_KPDOT] = "KPDot",
 576         [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
 577         [KEY_F11] = "F11",                      [KEY_F12] = "F12",
 578         [KEY_RO] = "RO",                        [KEY_KATAKANA] = "Katakana",
 579         [KEY_HIRAGANA] = "HIRAGANA",            [KEY_HENKAN] = "Henkan",
 580         [KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan",
 581         [KEY_KPJPCOMMA] = "KPJpComma",          [KEY_KPENTER] = "KPEnter",
 582         [KEY_RIGHTCTRL] = "RightCtrl",          [KEY_KPSLASH] = "KPSlash",
 583         [KEY_SYSRQ] = "SysRq",                  [KEY_RIGHTALT] = "RightAlt",
 584         [KEY_LINEFEED] = "LineFeed",            [KEY_HOME] = "Home",
 585         [KEY_UP] = "Up",                        [KEY_PAGEUP] = "PageUp",
 586         [KEY_LEFT] = "Left",                    [KEY_RIGHT] = "Right",
 587         [KEY_END] = "End",                      [KEY_DOWN] = "Down",
 588         [KEY_PAGEDOWN] = "PageDown",            [KEY_INSERT] = "Insert",
 589         [KEY_DELETE] = "Delete",                [KEY_MACRO] = "Macro",
 590         [KEY_MUTE] = "Mute",                    [KEY_VOLUMEDOWN] = "VolumeDown",
 591         [KEY_VOLUMEUP] = "VolumeUp",            [KEY_POWER] = "Power",
 592         [KEY_KPEQUAL] = "KPEqual",              [KEY_KPPLUSMINUS] = "KPPlusMinus",
 593         [KEY_PAUSE] = "Pause",                  [KEY_KPCOMMA] = "KPComma",
 594         [KEY_HANGUEL] = "Hangeul",              [KEY_HANJA] = "Hanja",
 595         [KEY_YEN] = "Yen",                      [KEY_LEFTMETA] = "LeftMeta",
 596         [KEY_RIGHTMETA] = "RightMeta",          [KEY_COMPOSE] = "Compose",
 597         [KEY_STOP] = "Stop",                    [KEY_AGAIN] = "Again",
 598         [KEY_PROPS] = "Props",                  [KEY_UNDO] = "Undo",
 599         [KEY_FRONT] = "Front",                  [KEY_COPY] = "Copy",
 600         [KEY_OPEN] = "Open",                    [KEY_PASTE] = "Paste",
 601         [KEY_FIND] = "Find",                    [KEY_CUT] = "Cut",
 602         [KEY_HELP] = "Help",                    [KEY_MENU] = "Menu",
 603         [KEY_CALC] = "Calc",                    [KEY_SETUP] = "Setup",
 604         [KEY_SLEEP] = "Sleep",                  [KEY_WAKEUP] = "WakeUp",
 605         [KEY_FILE] = "File",                    [KEY_SENDFILE] = "SendFile",
 606         [KEY_DELETEFILE] = "DeleteFile",        [KEY_XFER] = "X-fer",
 607         [KEY_PROG1] = "Prog1",                  [KEY_PROG2] = "Prog2",
 608         [KEY_WWW] = "WWW",                      [KEY_MSDOS] = "MSDOS",
 609         [KEY_COFFEE] = "Coffee",                [KEY_DIRECTION] = "Direction",
 610         [KEY_CYCLEWINDOWS] = "CycleWindows",    [KEY_MAIL] = "Mail",
 611         [KEY_BOOKMARKS] = "Bookmarks",          [KEY_COMPUTER] = "Computer",
 612         [KEY_BACK] = "Back",                    [KEY_FORWARD] = "Forward",
 613         [KEY_CLOSECD] = "CloseCD",              [KEY_EJECTCD] = "EjectCD",
 614         [KEY_EJECTCLOSECD] = "EjectCloseCD",    [KEY_NEXTSONG] = "NextSong",
 615         [KEY_PLAYPAUSE] = "PlayPause",          [KEY_PREVIOUSSONG] = "PreviousSong",
 616         [KEY_STOPCD] = "StopCD",                [KEY_RECORD] = "Record",
 617         [KEY_REWIND] = "Rewind",                [KEY_PHONE] = "Phone",
 618         [KEY_ISO] = "ISOKey",                   [KEY_CONFIG] = "Config",
 619         [KEY_HOMEPAGE] = "HomePage",            [KEY_REFRESH] = "Refresh",
 620         [KEY_EXIT] = "Exit",                    [KEY_MOVE] = "Move",
 621         [KEY_EDIT] = "Edit",                    [KEY_SCROLLUP] = "ScrollUp",
 622         [KEY_SCROLLDOWN] = "ScrollDown",        [KEY_KPLEFTPAREN] = "KPLeftParenthesis",
 623         [KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_NEW] = "New",
 624         [KEY_REDO] = "Redo",                    [KEY_F13] = "F13",
 625         [KEY_F14] = "F14",                      [KEY_F15] = "F15",
 626         [KEY_F16] = "F16",                      [KEY_F17] = "F17",
 627         [KEY_F18] = "F18",                      [KEY_F19] = "F19",
 628         [KEY_F20] = "F20",                      [KEY_F21] = "F21",
 629         [KEY_F22] = "F22",                      [KEY_F23] = "F23",
 630         [KEY_F24] = "F24",                      [KEY_PLAYCD] = "PlayCD",
 631         [KEY_PAUSECD] = "PauseCD",              [KEY_PROG3] = "Prog3",
 632         [KEY_PROG4] = "Prog4",                  [KEY_SUSPEND] = "Suspend",
 633         [KEY_CLOSE] = "Close",                  [KEY_PLAY] = "Play",
 634         [KEY_FASTFORWARD] = "FastForward",      [KEY_BASSBOOST] = "BassBoost",
 635         [KEY_PRINT] = "Print",                  [KEY_HP] = "HP",
 636         [KEY_CAMERA] = "Camera",                [KEY_SOUND] = "Sound",
 637         [KEY_QUESTION] = "Question",            [KEY_EMAIL] = "Email",
 638         [KEY_CHAT] = "Chat",                    [KEY_SEARCH] = "Search",
 639         [KEY_CONNECT] = "Connect",              [KEY_FINANCE] = "Finance",
 640         [KEY_SPORT] = "Sport",                  [KEY_SHOP] = "Shop",
 641         [KEY_ALTERASE] = "AlternateErase",      [KEY_CANCEL] = "Cancel",
 642         [KEY_BRIGHTNESSDOWN] = "BrightnessDown", [KEY_BRIGHTNESSUP] = "BrightnessUp",
 643         [KEY_MEDIA] = "Media",                  [KEY_UNKNOWN] = "Unknown",
 644         [BTN_0] = "Btn0",                       [BTN_1] = "Btn1",
 645         [BTN_2] = "Btn2",                       [BTN_3] = "Btn3",
 646         [BTN_4] = "Btn4",                       [BTN_5] = "Btn5",
 647         [BTN_6] = "Btn6",                       [BTN_7] = "Btn7",
 648         [BTN_8] = "Btn8",                       [BTN_9] = "Btn9",
 649         [BTN_LEFT] = "LeftBtn",                 [BTN_RIGHT] = "RightBtn",
 650         [BTN_MIDDLE] = "MiddleBtn",             [BTN_SIDE] = "SideBtn",
 651         [BTN_EXTRA] = "ExtraBtn",               [BTN_FORWARD] = "ForwardBtn",
 652         [BTN_BACK] = "BackBtn",                 [BTN_TASK] = "TaskBtn",
 653         [BTN_TRIGGER] = "Trigger",              [BTN_THUMB] = "ThumbBtn",
 654         [BTN_THUMB2] = "ThumbBtn2",             [BTN_TOP] = "TopBtn",
 655         [BTN_TOP2] = "TopBtn2",                 [BTN_PINKIE] = "PinkieBtn",
 656         [BTN_BASE] = "BaseBtn",                 [BTN_BASE2] = "BaseBtn2",
 657         [BTN_BASE3] = "BaseBtn3",               [BTN_BASE4] = "BaseBtn4",
 658         [BTN_BASE5] = "BaseBtn5",               [BTN_BASE6] = "BaseBtn6",
 659         [BTN_DEAD] = "BtnDead",                 [BTN_A] = "BtnA",
 660         [BTN_B] = "BtnB",                       [BTN_C] = "BtnC",
 661         [BTN_X] = "BtnX",                       [BTN_Y] = "BtnY",
 662         [BTN_Z] = "BtnZ",                       [BTN_TL] = "BtnTL",
 663         [BTN_TR] = "BtnTR",                     [BTN_TL2] = "BtnTL2",
 664         [BTN_TR2] = "BtnTR2",                   [BTN_SELECT] = "BtnSelect",
 665         [BTN_START] = "BtnStart",               [BTN_MODE] = "BtnMode",
 666         [BTN_THUMBL] = "BtnThumbL",             [BTN_THUMBR] = "BtnThumbR",
 667         [BTN_TOOL_PEN] = "ToolPen",             [BTN_TOOL_RUBBER] = "ToolRubber",
 668         [BTN_TOOL_BRUSH] = "ToolBrush",         [BTN_TOOL_PENCIL] = "ToolPencil",
 669         [BTN_TOOL_AIRBRUSH] = "ToolAirbrush",   [BTN_TOOL_FINGER] = "ToolFinger",
 670         [BTN_TOOL_MOUSE] = "ToolMouse",         [BTN_TOOL_LENS] = "ToolLens",
 671         [BTN_TOUCH] = "Touch",                  [BTN_STYLUS] = "Stylus",
 672         [BTN_STYLUS2] = "Stylus2",              [BTN_TOOL_DOUBLETAP] = "ToolDoubleTap",
 673         [BTN_TOOL_TRIPLETAP] = "ToolTripleTap", [BTN_GEAR_DOWN] = "WheelBtn",
 674         [BTN_GEAR_UP] = "Gear up",              [KEY_OK] = "Ok",
 675         [KEY_SELECT] = "Select",                [KEY_GOTO] = "Goto",
 676         [KEY_CLEAR] = "Clear",                  [KEY_POWER2] = "Power2",
 677         [KEY_OPTION] = "Option",                [KEY_INFO] = "Info",
 678         [KEY_TIME] = "Time",                    [KEY_VENDOR] = "Vendor",
 679         [KEY_ARCHIVE] = "Archive",              [KEY_PROGRAM] = "Program",
 680         [KEY_CHANNEL] = "Channel",              [KEY_FAVORITES] = "Favorites",
 681         [KEY_EPG] = "EPG",                      [KEY_PVR] = "PVR",
 682         [KEY_MHP] = "MHP",                      [KEY_LANGUAGE] = "Language",
 683         [KEY_TITLE] = "Title",                  [KEY_SUBTITLE] = "Subtitle",
 684         [KEY_ANGLE] = "Angle",                  [KEY_ZOOM] = "Zoom",
 685         [KEY_MODE] = "Mode",                    [KEY_KEYBOARD] = "Keyboard",
 686         [KEY_SCREEN] = "Screen",                [KEY_PC] = "PC",
 687         [KEY_TV] = "TV",                        [KEY_TV2] = "TV2",
 688         [KEY_VCR] = "VCR",                      [KEY_VCR2] = "VCR2",
 689         [KEY_SAT] = "Sat",                      [KEY_SAT2] = "Sat2",
 690         [KEY_CD] = "CD",                        [KEY_TAPE] = "Tape",
 691         [KEY_RADIO] = "Radio",                  [KEY_TUNER] = "Tuner",
 692         [KEY_PLAYER] = "Player",                [KEY_TEXT] = "Text",
 693         [KEY_DVD] = "DVD",                      [KEY_AUX] = "Aux",
 694         [KEY_MP3] = "MP3",                      [KEY_AUDIO] = "Audio",
 695         [KEY_VIDEO] = "Video",                  [KEY_DIRECTORY] = "Directory",
 696         [KEY_LIST] = "List",                    [KEY_MEMO] = "Memo",
 697         [KEY_CALENDAR] = "Calendar",            [KEY_RED] = "Red",
 698         [KEY_GREEN] = "Green",                  [KEY_YELLOW] = "Yellow",
 699         [KEY_BLUE] = "Blue",                    [KEY_CHANNELUP] = "ChannelUp",
 700         [KEY_CHANNELDOWN] = "ChannelDown",      [KEY_FIRST] = "First",
 701         [KEY_LAST] = "Last",                    [KEY_AB] = "AB",
 702         [KEY_NEXT] = "Next",                    [KEY_RESTART] = "Restart",
 703         [KEY_SLOW] = "Slow",                    [KEY_SHUFFLE] = "Shuffle",
 704         [KEY_BREAK] = "Break",                  [KEY_PREVIOUS] = "Previous",
 705         [KEY_DIGITS] = "Digits",                [KEY_TEEN] = "TEEN",
 706         [KEY_TWEN] = "TWEN",                    [KEY_DEL_EOL] = "DeleteEOL",
 707         [KEY_DEL_EOS] = "DeleteEOS",            [KEY_INS_LINE] = "InsertLine",
 708         [KEY_DEL_LINE] = "DeleteLine",
 709         [KEY_SEND] = "Send",                    [KEY_REPLY] = "Reply",
 710         [KEY_FORWARDMAIL] = "ForwardMail",      [KEY_SAVE] = "Save",
 711         [KEY_DOCUMENTS] = "Documents",          [KEY_SPELLCHECK] = "SpellCheck",
 712         [KEY_LOGOFF] = "Logoff",
 713         [KEY_FN] = "Fn",                        [KEY_FN_ESC] = "Fn+ESC",
 714         [KEY_FN_1] = "Fn+1",                    [KEY_FN_2] = "Fn+2",
 715         [KEY_FN_B] = "Fn+B",                    [KEY_FN_D] = "Fn+D",
 716         [KEY_FN_E] = "Fn+E",                    [KEY_FN_F] = "Fn+F",
 717         [KEY_FN_S] = "Fn+S",
 718         [KEY_FN_F1] = "Fn+F1",                  [KEY_FN_F2] = "Fn+F2",
 719         [KEY_FN_F3] = "Fn+F3",                  [KEY_FN_F4] = "Fn+F4",
 720         [KEY_FN_F5] = "Fn+F5",                  [KEY_FN_F6] = "Fn+F6",
 721         [KEY_FN_F7] = "Fn+F7",                  [KEY_FN_F8] = "Fn+F8",
 722         [KEY_FN_F9] = "Fn+F9",                  [KEY_FN_F10] = "Fn+F10",
 723         [KEY_FN_F11] = "Fn+F11",                [KEY_FN_F12] = "Fn+F12",
 724         [KEY_KBDILLUMTOGGLE] = "KbdIlluminationToggle",
 725         [KEY_KBDILLUMDOWN] = "KbdIlluminationDown",
 726         [KEY_KBDILLUMUP] = "KbdIlluminationUp",
 727         [KEY_SWITCHVIDEOMODE] = "SwitchVideoMode",
 728 };
 729
 730 static const char *relatives[REL_MAX + 1] = {
 731         [REL_X] = "X",                  [REL_Y] = "Y",
 732         [REL_Z] = "Z",                  [REL_RX] = "Rx",
 733         [REL_RY] = "Ry",                [REL_RZ] = "Rz",
 734         [REL_HWHEEL] = "HWheel",        [REL_DIAL] = "Dial",
 735         [REL_WHEEL] = "Wheel",          [REL_MISC] = "Misc",
 736 };
 737
 738 static const char *absolutes[ABS_MAX + 1] = {
 739         [ABS_X] = "X",                  [ABS_Y] = "Y",
 740         [ABS_Z] = "Z",                  [ABS_RX] = "Rx",
 741         [ABS_RY] = "Ry",                [ABS_RZ] = "Rz",
 742         [ABS_THROTTLE] = "Throttle",    [ABS_RUDDER] = "Rudder",
 743         [ABS_WHEEL] = "Wheel",          [ABS_GAS] = "Gas",
 744         [ABS_BRAKE] = "Brake",          [ABS_HAT0X] = "Hat0X",
 745         [ABS_HAT0Y] = "Hat0Y",          [ABS_HAT1X] = "Hat1X",
 746         [ABS_HAT1Y] = "Hat1Y",          [ABS_HAT2X] = "Hat2X",
 747         [ABS_HAT2Y] = "Hat2Y",          [ABS_HAT3X] = "Hat3X",
 748         [ABS_HAT3Y] = "Hat 3Y",         [ABS_PRESSURE] = "Pressure",
 749         [ABS_DISTANCE] = "Distance",    [ABS_TILT_X] = "XTilt",
 750         [ABS_TILT_Y] = "YTilt",         [ABS_TOOL_WIDTH] = "Tool Width",
 751         [ABS_VOLUME] = "Volume",        [ABS_MISC] = "Misc",
 752 };
 753
 754 static const char *misc[MSC_MAX + 1] = {
 755         [MSC_SERIAL] = "Serial",        [MSC_PULSELED] = "Pulseled",
 756         [MSC_GESTURE] = "Gesture",      [MSC_RAW] = "RawData"
 757 };
 758
 759 static const char *leds[LED_MAX + 1] = {
 760         [LED_NUML] = "NumLock",         [LED_CAPSL] = "CapsLock",
 761         [LED_SCROLLL] = "ScrollLock",   [LED_COMPOSE] = "Compose",
 762         [LED_KANA] = "Kana",            [LED_SLEEP] = "Sleep",
 763         [LED_SUSPEND] = "Suspend",      [LED_MUTE] = "Mute",
 764         [LED_MISC] = "Misc",
 765 };
 766
 767 static const char *repeats[REP_MAX + 1] = {
 768         [REP_DELAY] = "Delay",          [REP_PERIOD] = "Period"
 769 };
 770
 771 static const char *sounds[SND_MAX + 1] = {
 772         [SND_CLICK] = "Click",          [SND_BELL] = "Bell",
 773         [SND_TONE] = "Tone"
 774 };
 775
 776 static const char **names[EV_MAX + 1] = {
 777         [EV_SYN] = syncs,                       [EV_KEY] = keys,
 778         [EV_REL] = relatives,                   [EV_ABS] = absolutes,
 779         [EV_MSC] = misc,                        [EV_LED] = leds,
 780         [EV_SND] = sounds,                      [EV_REP] = repeats,
 781 };
 782
 783 void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f) {
 784
 785         seq_printf(f, "%s.%s", events[type] ? events[type] : "?",
 786                 names[type] ? (names[type][code] ? names[type][code] : "?") : "?");
 787 }
 788
 789 void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
 790 {
 791         int i, j, k;
 792         struct hid_report *report;
 793         struct hid_usage *usage;
 794
 795         for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
 796                 list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
 797                         for (i = 0; i < report->maxfield; i++) {
 798                                 for ( j = 0; j < report->field[i]->maxusage; j++) {
 799                                         usage = report->field[i]->usage + j;
 800                                         hid_resolv_usage(usage->hid, f);
 801                                         seq_printf(f, " ---> ");
 802                                         hid_resolv_event(usage->type, usage->code, f);
 803                                         seq_printf(f, "\n");
 804                                 }
 805                         }
 806                 }
 807         }
 808
 809 }
 810
 811 static int hid_debug_rdesc_show(struct seq_file *f, void *p)
 812 {
 813         struct hid_device *hdev = f->private;
 814         int i;
 815
 816         /* dump HID report descriptor */
 817         for (i = 0; i < hdev->rsize; i++)
 818                 seq_printf(f, "%02x ", hdev->rdesc[i]);
 819         seq_printf(f, "\n\n");
 820
 821         /* dump parsed data and input mappings */
 822         hid_dump_device(hdev, f);
 823         seq_printf(f, "\n");
 824         hid_dump_input_mapping(hdev, f);
 825
 826         return 0;
 827 }
 828
 829 static int hid_debug_rdesc_open(struct inode *inode, struct file *file)
 830 {
 831         return single_open(file, hid_debug_rdesc_show, inode->i_private);
 832 }
 833
 834 static const struct file_operations hid_debug_rdesc_fops = {
 835         .open           = hid_debug_rdesc_open,
 836         .read           = seq_read,
 837         .llseek         = seq_lseek,
 838         .release        = single_release,
 839 };
 840
 841 void hid_debug_register(struct hid_device *hdev, const char *name)
 842 {
 843         hdev->debug_dir = debugfs_create_dir(name, hid_debug_root);
 844         hdev->debug_rdesc = debugfs_create_file("rdesc", 0400,
 845                         hdev->debug_dir, hdev, &hid_debug_rdesc_fops);
 846 }
 847
 848 void hid_debug_unregister(struct hid_device *hdev)
 849 {
 850         debugfs_remove(hdev->debug_rdesc);
 851         debugfs_remove(hdev->debug_dir);
 852 }
 853
 854 void hid_debug_init(void)
 855 {
 856         hid_debug_root = debugfs_create_dir("hid", NULL);
 857 }
 858
 859 void hid_debug_exit(void)
 860 {
 861         debugfs_remove_recursive(hid_debug_root);
 862 }
 863