1 /* 2 * $Id: evtest.c,v 1.23 2005/02/06 13:51:42 vojtech Exp $ 3 * 4 * Copyright (c) 1999-2000 Vojtech Pavlik 5 * 6 * Event device test program 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 <stdint.h> 30 31 #include <linux/input.h> 32 33 #include <string.h> 34 #include <fcntl.h> 35 #include <unistd.h> 36 #include <stdio.h> 37 38 #ifndef EV_SYN 39 #define EV_SYN 0 40 #endif 41 42 char *events[EV_MAX + 1] = { 43 [0 ... EV_MAX] = NULL, 44 [EV_SYN] = "Sync", [EV_KEY] = "Key", 45 [EV_REL] = "Relative", [EV_ABS] = "Absolute", 46 [EV_MSC] = "Misc", [EV_LED] = "LED", 47 [EV_SND] = "Sound", [EV_REP] = "Repeat", 48 [EV_FF] = "ForceFeedback", [EV_PWR] = "Power", 49 [EV_FF_STATUS] = "ForceFeedbackStatus", [EV_SW] = "Switch", 50 }; 51 52 char *keys[KEY_MAX + 1] = { 53 [0 ... KEY_MAX] = NULL, 54 [KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc", 55 [KEY_1] = "1", [KEY_2] = "2", 56 [KEY_3] = "3", [KEY_4] = "4", 57 [KEY_5] = "5", [KEY_6] = "6", 58 [KEY_7] = "7", [KEY_8] = "8", 59 [KEY_9] = "9", [KEY_0] = "0", 60 [KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal", 61 [KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab", 62 [KEY_Q] = "Q", [KEY_W] = "W", 63 [KEY_E] = "E", [KEY_R] = "R", 64 [KEY_T] = "T", [KEY_Y] = "Y", 65 [KEY_U] = "U", [KEY_I] = "I", 66 [KEY_O] = "O", [KEY_P] = "P", 67 [KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace", 68 [KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl", 69 [KEY_A] = "A", [KEY_S] = "S", 70 [KEY_D] = "D", [KEY_F] = "F", 71 [KEY_G] = "G", [KEY_H] = "H", 72 [KEY_J] = "J", [KEY_K] = "K", 73 [KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon", 74 [KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave", 75 [KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash", 76 [KEY_Z] = "Z", [KEY_X] = "X", 77 [KEY_C] = "C", [KEY_V] = "V", 78 [KEY_B] = "B", [KEY_N] = "N", 79 [KEY_M] = "M", [KEY_COMMA] = "Comma", 80 [KEY_DOT] = "Dot", [KEY_SLASH] = "Slash", 81 [KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk", 82 [KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space", 83 [KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1", 84 [KEY_F2] = "F2", [KEY_F3] = "F3", 85 [KEY_F4] = "F4", [KEY_F5] = "F5", 86 [KEY_F6] = "F6", [KEY_F7] = "F7", 87 [KEY_F8] = "F8", [KEY_F9] = "F9", 88 [KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock", 89 [KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7", 90 [KEY_KP8] = "KP8", [KEY_KP9] = "KP9", 91 [KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4", 92 [KEY_KP5] = "KP5", [KEY_KP6] = "KP6", 93 [KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1", 94 [KEY_KP2] = "KP2", [KEY_KP3] = "KP3", 95 [KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot", 96 [KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd", 97 [KEY_F11] = "F11", [KEY_F12] = "F12", 98 [KEY_RO] = "RO", [KEY_KATAKANA] = "Katakana", 99 [KEY_HIRAGANA] = "HIRAGANA", [KEY_HENKAN] = "Henkan", 100 [KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan", 101 [KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter", 102 [KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash", 103 [KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt", 104 [KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home", 105 [KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp", 106 [KEY_LEFT] = "Left", [KEY_RIGHT] = "Right", 107 [KEY_END] = "End", [KEY_DOWN] = "Down", 108 [KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert", 109 [KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro", 110 [KEY_MUTE] = "Mute", [KEY_VOLUMEDOWN] = "VolumeDown", 111 [KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power", 112 [KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus", 113 [KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma", 114 [KEY_HANGUEL] = "Hanguel", [KEY_HANJA] = "Hanja", 115 [KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta", 116 [KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose", 117 [KEY_STOP] = "Stop", [KEY_AGAIN] = "Again", 118 [KEY_PROPS] = "Props", [KEY_UNDO] = "Undo", 119 [KEY_FRONT] = "Front", [KEY_COPY] = "Copy", 120 [KEY_OPEN] = "Open", [KEY_PASTE] = "Paste", 121 [KEY_FIND] = "Find", [KEY_CUT] = "Cut", 122 [KEY_HELP] = "Help", [KEY_MENU] = "Menu", 123 [KEY_CALC] = "Calc", [KEY_SETUP] = "Setup", 124 [KEY_SLEEP] = "Sleep", [KEY_WAKEUP] = "WakeUp", 125 [KEY_FILE] = "File", [KEY_SENDFILE] = "SendFile", 126 [KEY_DELETEFILE] = "DeleteFile", [KEY_XFER] = "X-fer", 127 [KEY_PROG1] = "Prog1", [KEY_PROG2] = "Prog2", 128 [KEY_WWW] = "WWW", [KEY_MSDOS] = "MSDOS", 129 [KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction", 130 [KEY_CYCLEWINDOWS] = "CycleWindows", [KEY_MAIL] = "Mail", 131 [KEY_BOOKMARKS] = "Bookmarks", [KEY_COMPUTER] = "Computer", 132 [KEY_BACK] = "Back", [KEY_FORWARD] = "Forward", 133 [KEY_CLOSECD] = "CloseCD", [KEY_EJECTCD] = "EjectCD", 134 [KEY_EJECTCLOSECD] = "EjectCloseCD", [KEY_NEXTSONG] = "NextSong", 135 [KEY_PLAYPAUSE] = "PlayPause", [KEY_PREVIOUSSONG] = "PreviousSong", 136 [KEY_STOPCD] = "StopCD", [KEY_RECORD] = "Record", 137 [KEY_REWIND] = "Rewind", [KEY_PHONE] = "Phone", 138 [KEY_ISO] = "ISOKey", [KEY_CONFIG] = "Config", 139 [KEY_HOMEPAGE] = "HomePage", [KEY_REFRESH] = "Refresh", 140 [KEY_EXIT] = "Exit", [KEY_MOVE] = "Move", 141 [KEY_EDIT] = "Edit", [KEY_SCROLLUP] = "ScrollUp", 142 [KEY_SCROLLDOWN] = "ScrollDown", [KEY_KPLEFTPAREN] = "KPLeftParenthesis", 143 [KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_F13] = "F13", 144 [KEY_F14] = "F14", [KEY_F15] = "F15", 145 [KEY_F16] = "F16", [KEY_F17] = "F17", 146 [KEY_F18] = "F18", [KEY_F19] = "F19", 147 [KEY_F20] = "F20", [KEY_F21] = "F21", 148 [KEY_F22] = "F22", [KEY_F23] = "F23", 149 [KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD", 150 [KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3", 151 [KEY_PROG4] = "Prog4", [KEY_SUSPEND] = "Suspend", 152 [KEY_CLOSE] = "Close", [KEY_PLAY] = "Play", 153 [KEY_FASTFORWARD] = "Fast Forward", [KEY_BASSBOOST] = "Bass Boost", 154 [KEY_PRINT] = "Print", [KEY_HP] = "HP", 155 [KEY_CAMERA] = "Camera", [KEY_SOUND] = "Sound", 156 [KEY_QUESTION] = "Question", [KEY_EMAIL] = "Email", 157 [KEY_CHAT] = "Chat", [KEY_SEARCH] = "Search", 158 [KEY_CONNECT] = "Connect", [KEY_FINANCE] = "Finance", 159 [KEY_SPORT] = "Sport", [KEY_SHOP] = "Shop", 160 [KEY_ALTERASE] = "Alternate Erase", [KEY_CANCEL] = "Cancel", 161 [KEY_BRIGHTNESSDOWN] = "Brightness down", [KEY_BRIGHTNESSUP] = "Brightness up", 162 [KEY_MEDIA] = "Media", [KEY_UNKNOWN] = "Unknown", 163 [BTN_0] = "Btn0", [BTN_1] = "Btn1", 164 [BTN_2] = "Btn2", [BTN_3] = "Btn3", 165 [BTN_4] = "Btn4", [BTN_5] = "Btn5", 166 [BTN_6] = "Btn6", [BTN_7] = "Btn7", 167 [BTN_8] = "Btn8", [BTN_9] = "Btn9", 168 [BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn", 169 [BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn", 170 [BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn", 171 [BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn", 172 [BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn", 173 [BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn", 174 [BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn", 175 [BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2", 176 [BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4", 177 [BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6", 178 [BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA", 179 [BTN_B] = "BtnB", [BTN_C] = "BtnC", 180 [BTN_X] = "BtnX", [BTN_Y] = "BtnY", 181 [BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL", 182 [BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2", 183 [BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect", 184 [BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode", 185 [BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR", 186 [BTN_TOOL_PEN] = "ToolPen", [BTN_TOOL_RUBBER] = "ToolRubber", 187 [BTN_TOOL_BRUSH] = "ToolBrush", [BTN_TOOL_PENCIL] = "ToolPencil", 188 [BTN_TOOL_AIRBRUSH] = "ToolAirbrush", [BTN_TOOL_FINGER] = "ToolFinger", 189 [BTN_TOOL_MOUSE] = "ToolMouse", [BTN_TOOL_LENS] = "ToolLens", 190 [BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus", 191 [BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap", 192 [BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn", 193 [BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok", 194 [KEY_SELECT] = "Select", [KEY_GOTO] = "Goto", 195 [KEY_CLEAR] = "Clear", [KEY_POWER2] = "Power2", 196 [KEY_OPTION] = "Option", [KEY_INFO] = "Info", 197 [KEY_TIME] = "Time", [KEY_VENDOR] = "Vendor", 198 [KEY_ARCHIVE] = "Archive", [KEY_PROGRAM] = "Program", 199 [KEY_CHANNEL] = "Channel", [KEY_FAVORITES] = "Favorites", 200 [KEY_EPG] = "EPG", [KEY_PVR] = "PVR", 201 [KEY_MHP] = "MHP", [KEY_LANGUAGE] = "Language", 202 [KEY_TITLE] = "Title", [KEY_SUBTITLE] = "Subtitle", 203 [KEY_ANGLE] = "Angle", [KEY_ZOOM] = "Zoom", 204 [KEY_MODE] = "Mode", [KEY_KEYBOARD] = "Keyboard", 205 [KEY_SCREEN] = "Screen", [KEY_PC] = "PC", 206 [KEY_TV] = "TV", [KEY_TV2] = "TV2", 207 [KEY_VCR] = "VCR", [KEY_VCR2] = "VCR2", 208 [KEY_SAT] = "Sat", [KEY_SAT2] = "Sat2", 209 [KEY_CD] = "CD", [KEY_TAPE] = "Tape", 210 [KEY_RADIO] = "Radio", [KEY_TUNER] = "Tuner", 211 [KEY_PLAYER] = "Player", [KEY_TEXT] = "Text", 212 [KEY_DVD] = "DVD", [KEY_AUX] = "Aux", 213 [KEY_MP3] = "MP3", [KEY_AUDIO] = "Audio", 214 [KEY_VIDEO] = "Video", [KEY_DIRECTORY] = "Directory", 215 [KEY_LIST] = "List", [KEY_MEMO] = "Memo", 216 [KEY_CALENDAR] = "Calendar", [KEY_RED] = "Red", 217 [KEY_GREEN] = "Green", [KEY_YELLOW] = "Yellow", 218 [KEY_BLUE] = "Blue", [KEY_CHANNELUP] = "ChannelUp", 219 [KEY_CHANNELDOWN] = "ChannelDown", [KEY_FIRST] = "First", 220 [KEY_LAST] = "Last", [KEY_AB] = "AB", 221 [KEY_NEXT] = "Next", [KEY_RESTART] = "Restart", 222 [KEY_SLOW] = "Slow", [KEY_SHUFFLE] = "Shuffle", 223 [KEY_BREAK] = "Break", [KEY_PREVIOUS] = "Previous", 224 [KEY_DIGITS] = "Digits", [KEY_TEEN] = "TEEN", 225 [KEY_TWEN] = "TWEN", [KEY_DEL_EOL] = "Delete EOL", 226 [KEY_DEL_EOS] = "Delete EOS", [KEY_INS_LINE] = "Insert line", 227 [KEY_DEL_LINE] = "Delete line", 228 }; 229 230 char *absval[5] = { "Value", "Min ", "Max ", "Fuzz ", "Flat " }; 231 232 char *relatives[REL_MAX + 1] = { 233 [0 ... REL_MAX] = NULL, 234 [REL_X] = "X", [REL_Y] = "Y", 235 [REL_Z] = "Z", [REL_HWHEEL] = "HWheel", 236 [REL_DIAL] = "Dial", [REL_WHEEL] = "Wheel", 237 [REL_MISC] = "Misc", 238 }; 239 240 char *absolutes[ABS_MAX + 1] = { 241 [0 ... ABS_MAX] = NULL, 242 [ABS_X] = "X", [ABS_Y] = "Y", 243 [ABS_Z] = "Z", [ABS_RX] = "Rx", 244 [ABS_RY] = "Ry", [ABS_RZ] = "Rz", 245 [ABS_THROTTLE] = "Throttle", [ABS_RUDDER] = "Rudder", 246 [ABS_WHEEL] = "Wheel", [ABS_GAS] = "Gas", 247 [ABS_BRAKE] = "Brake", [ABS_HAT0X] = "Hat0X", 248 [ABS_HAT0Y] = "Hat0Y", [ABS_HAT1X] = "Hat1X", 249 [ABS_HAT1Y] = "Hat1Y", [ABS_HAT2X] = "Hat2X", 250 [ABS_HAT2Y] = "Hat2Y", [ABS_HAT3X] = "Hat3X", 251 [ABS_HAT3Y] = "Hat 3Y", [ABS_PRESSURE] = "Pressure", 252 [ABS_DISTANCE] = "Distance", [ABS_TILT_X] = "XTilt", 253 [ABS_TILT_Y] = "YTilt", [ABS_TOOL_WIDTH] = "Tool Width", 254 [ABS_VOLUME] = "Volume", [ABS_MISC] = "Misc", 255 }; 256 257 char *misc[MSC_MAX + 1] = { 258 [ 0 ... MSC_MAX] = NULL, 259 [MSC_SERIAL] = "Serial", [MSC_PULSELED] = "Pulseled", 260 [MSC_GESTURE] = "Gesture", [MSC_RAW] = "RawData", 261 [MSC_SCAN] = "ScanCode", 262 }; 263 264 char *leds[LED_MAX + 1] = { 265 [0 ... LED_MAX] = NULL, 266 [LED_NUML] = "NumLock", [LED_CAPSL] = "CapsLock", 267 [LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose", 268 [LED_KANA] = "Kana", [LED_SLEEP] = "Sleep", 269 [LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute", 270 [LED_MISC] = "Misc", 271 }; 272 273 char *repeats[REP_MAX + 1] = { 274 [0 ... REP_MAX] = NULL, 275 [REP_DELAY] = "Delay", [REP_PERIOD] = "Period" 276 }; 277 278 char *sounds[SND_MAX + 1] = { 279 [0 ... SND_MAX] = NULL, 280 [SND_CLICK] = "Click", [SND_BELL] = "Bell", 281 [SND_TONE] = "Tone" 282 }; 283 284 char *switches[SW_MAX + 1] = { 285 [0 ... SW_MAX] = NULL, 286 [SW_LID] = "Lid", [SW_TABLET_MODE] = "Tablet Mode", 287 [SW_HEADPHONE_INSERT] = "Headphone", [SW_RFKILL_ALL] = "RF Kill", 288 [SW_MICROPHONE_INSERT] = "Microphone", [SW_DOCK] = "Dock", 289 [SW_LINEOUT_INSERT] = "Lineout", [SW_JACK_PHYSICAL_INSERT] = "Jack Physical", 290 [SW_VIDEOOUT_INSERT] = "Video Out" 291 }; 292 293 char **names[EV_MAX + 1] = { 294 [0 ... EV_MAX] = NULL, 295 [EV_SYN] = events, [EV_KEY] = keys, 296 [EV_REL] = relatives, [EV_ABS] = absolutes, 297 [EV_MSC] = misc, [EV_LED] = leds, 298 [EV_SND] = sounds, [EV_REP] = repeats, 299 [EV_SW] = switches, 300 }; 301 302 #define BITS_PER_LONG (sizeof(long) * 8) 303 #define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1) 304 #define OFF(x) ((x)%BITS_PER_LONG) 305 #define BIT(x) (1UL<<OFF(x)) 306 #define LONG(x) ((x)/BITS_PER_LONG) 307 #define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1) 308 309 int keycode_from_name(char *name) 310 { 311 int i = 0; 312 for(i = 1; i < KEY_MAX; i++) { 313 if (keys[i] && 0 == strcmp(keys[i], name)) 314 return i; 315 } 316 return 0; 317 } 318 319 int do_single_key_capture(int fd) 320 { 321 struct input_event ev[64]; 322 int i, rd; 323 int code = 0; 324 int state = 0; // assume keys are up. 325 while (1) { 326 rd = read(fd, ev, sizeof(struct input_event) * 64); 327 328 if (rd < (int) sizeof(struct input_event)) { 329 perror("\nevtest: error reading"); 330 return 1; 331 } 332 333 for (i = 0; i < rd / sizeof(struct input_event); i++) 334 if (ev[i].type == EV_KEY) { 335 if (0 == state && 1 == ev[i].value) { 336 code = ev[i].code; 337 state = 1; 338 } else if (code == ev[i].code && 339 0 == ev[i].value && 340 1 == state) { 341 // key up. 342 printf("%s", 343 names[ev[i].type][ev[i].code]); 344 return 0; 345 } 346 } 347 } 348 } 349 350 int is_key_supported(int fd, char *key_name) 351 { 352 unsigned long bit[EV_MAX][NBITS(KEY_MAX)]; 353 int keycode = keycode_from_name(key_name); 354 if (keycode) { 355 ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]); 356 if (test_bit(keycode, bit[EV_KEY])) { 357 printf("%d", keycode); 358 return 0; // key found 359 } else { 360 printf("Not found"); 361 return 1; 362 } 363 } else { /* zero keycode is invalid */ 364 printf("Invalid keycode %s", key_name); 365 return 1; 366 } 367 } 368 369 370 int do_check_num_keys(int fd) 371 { 372 int num_keys = 0; 373 int j = 0; 374 unsigned long bit[EV_MAX][NBITS(KEY_MAX)]; 375 memset(bit, 0, sizeof(bit)); 376 ioctl(fd, EVIOCGBIT(0,EV_MAX), bit[0]); 377 if (test_bit(EV_KEY, bit[0])) { 378 ioctl(fd, EVIOCGBIT(EV_KEY, KEY_MAX), bit[EV_KEY]); 379 for(j = 0; j < KEY_MAX; j++) 380 if (test_bit(j,bit[EV_KEY])) { 381 // found a supported key 382 num_keys++; 383 } 384 } 385 printf("%d", num_keys); 386 return 0; 387 } 388 389 // Normal evtest. Print input device information then read from the event 390 // until the user interrupts. 391 int do_evtest_dumpall(int fd) 392 { 393 int rd, i, j, k; 394 struct input_event ev[64]; 395 int version; 396 unsigned short id[4]; 397 unsigned long bit[EV_MAX][NBITS(KEY_MAX)]; 398 char name[256] = "Unknown"; 399 int abs[5]; 400 401 printf("Input driver version is %d.%d.%d\n", 402 version >> 16, (version >> 8) & 0xff, version & 0xff); 403 404 ioctl(fd, EVIOCGID, id); 405 printf("Input device ID: bus 0x%x vendor 0x%x product 0x%x version 0x%x\n", 406 id[ID_BUS], id[ID_VENDOR], id[ID_PRODUCT], id[ID_VERSION]); 407 408 ioctl(fd, EVIOCGNAME(sizeof(name)), name); 409 printf("Input device name: \"%s\"\n", name); 410 memset(bit, 0, sizeof(bit)); 411 ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]); 412 printf("Supported events:\n"); 413 for (i = 0; i < EV_MAX; i++) 414 if (test_bit(i, bit[0])) { 415 printf(" Event type %d (%s)\n", i, 416 events[i] ? events[i] : "?"); 417 if (!i) continue; 418 ioctl(fd, EVIOCGBIT(i, KEY_MAX), bit[i]); 419 for (j = 0; j < KEY_MAX; j++) 420 if (test_bit(j, bit[i])) { 421 char *p = "?"; 422 if (names[i] && names[i][j]) 423 p = names[i][j]; 424 printf(" Event code %d (%s)\n", 425 j, p); 426 if (i == EV_SW) { 427 ioctl(fd, EVIOCGSW(sizeof(bit[i])), bit[i]); 428 printf(" Switch value = %d\n", 429 (int)test_bit(j, bit[i])); 430 } 431 if (i == EV_ABS) { 432 ioctl(fd, EVIOCGABS(j), abs); 433 for (k = 0; k < 5; k++) 434 if ((k < 3) || abs[k]) 435 printf(" %s %6d\n", 436 absval[k], abs[k]); 437 } 438 } 439 } 440 441 printf("Testing ... (interrupt to exit)\n"); 442 443 while (1) { 444 rd = read(fd, ev, sizeof(struct input_event) * 64); 445 446 if (rd < (int) sizeof(struct input_event)) { 447 perror("\nevtest: error reading"); 448 return 1; 449 } 450 451 for (i = 0; i < rd / sizeof(struct input_event); i++) 452 453 if (ev[i].type == EV_SYN) { 454 printf("Event: time %ld.%06ld, -------------- %s ------------\n", 455 ev[i].time.tv_sec, ev[i].time.tv_usec, 456 ev[i].code ? "Config Sync" : "Report Sync" ); 457 } else if (ev[i].type == EV_MSC && 458 (ev[i].code == MSC_RAW || ev[i].code == MSC_SCAN)) { 459 char * p = "?"; 460 if (names[ev[i].type] && names[ev[i].type][ev[i].code]) 461 p = names[ev[i].type][ev[i].code]; 462 printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %02x\n", 463 ev[i].time.tv_sec, ev[i].time.tv_usec, 464 ev[i].type, 465 events[ev[i].type] ? events[ev[i].type] : "?", 466 ev[i].code, 467 p, 468 ev[i].value); 469 } else { 470 char * p = "?"; 471 if (names[ev[i].type] && names[ev[i].type][ev[i].code]) 472 p = names[ev[i].type][ev[i].code]; 473 printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %d\n", 474 ev[i].time.tv_sec, ev[i].time.tv_usec, 475 ev[i].type, 476 events[ev[i].type] ? events[ev[i].type] : "?", 477 ev[i].code, 478 p, 479 ev[i].value); 480 } 481 482 } 483 } 484 485 int main (int argc, char **argv) 486 { 487 int path_index, fd, rd, i, j, k; 488 struct input_event ev[64]; 489 int version; 490 unsigned short id[4]; 491 unsigned long bit[EV_MAX][NBITS(KEY_MAX)]; 492 char name[256] = "Unknown"; 493 int abs[5]; 494 int check_num_keys = 0; 495 int supported_key_arg_index = 0; 496 int single_key_capture = 0; 497 498 if (argc < 2) { 499 goto Usage; 500 } 501 502 for (i = 1; i < argc; i++) { 503 if (0 == strcmp(argv[i], "-n")) { 504 /* number of keys supported by this event */ 505 check_num_keys = 1; 506 } else if (0 == strcmp(argv[i], "-k")) { 507 single_key_capture = 1; 508 } else if (0 == strcmp(argv[i], "-s")) {/* supported key flag */ 509 if (i + 1 <= argc - 1) { 510 supported_key_arg_index = ++i; 511 } else { 512 goto Usage; 513 } 514 } else { 515 path_index = i; 516 } 517 } 518 519 if ((fd = open(argv[path_index], O_RDONLY)) < 0) { 520 perror("evtest"); 521 return 1; 522 } 523 524 if (single_key_capture) 525 return do_single_key_capture(fd); 526 527 if (check_num_keys) 528 return do_check_num_keys(fd); 529 530 if (supported_key_arg_index) 531 return is_key_supported(fd, argv[supported_key_arg_index]); 532 533 if (ioctl(fd, EVIOCGVERSION, &version)) { 534 perror("evtest: can't get version"); 535 return 1; 536 } 537 538 return do_evtest_dumpall(fd); 539 540 Usage: 541 printf("Usage: evtest [OPTIONS] /dev/input/eventX\n"); 542 printf("Where X = input device number\n"); 543 printf("Exclusive Options (just choose one):\n"); 544 printf(" -n Show number of keys supported by eventX\n"); 545 printf(" -s Keyname Outputs 1 if key is supported. Outputs 0 if not\n"); 546 printf(" -k Captures one full keystroke (down and up). Outputs keyname.\n"); 547 return 1; 548 } 549