2个分析input event事件的开源工具evtest,getevent

文章来源:http://blog.chinaunix.net/uid-20680966-id-4899867.html

linux 的/etc/input/eventxx 设备可以用来方便地调试 鼠标、键盘、触摸板等输入设备
有两个开源可用来读取input event事件的值，evtest与getevent(这个是从android中提取的)

evtest
Evtest.c

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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 itand/or modify
    
11.  * it under the terms of the GNU General Public License as published by
    
12.  * the Free Software Foundation; either version 2of the License,or
    
13.  * (at youroption) any later version.
    
14.  *
    
15.  * This program is distributedin the hope that it will be useful,
    
16.  * but WITHOUT ANY WARRANTY; without even the implied warrantyof
    
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 <[e-mail]>,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",
    
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 **names[EV_MAX+ 1] = {
     
285.     [0 ... EV_MAX]= NULL,
     
286.     [EV_SYN]= events,            [EV_KEY]= keys,
     
287.     [EV_REL]= relatives,            [EV_ABS]= absolutes,
     
288.     [EV_MSC]= misc,            [EV_LED]= leds,
     
289.     [EV_SND]= sounds,            [EV_REP]= repeats,
     
290. };
     
291. 
     
292. #define BITS_PER_LONG (sizeof(long)* 8)
     
293. #define NBITS(x)((((x)-1)/BITS_PER_LONG)+1)
     
294. #define OFF(x)((x)%BITS_PER_LONG)
     
295. #define BIT(x)(1UL<<OFF(x))
     
296. #define LONG(x)((x)/BITS_PER_LONG)
     
297. #define test_bit(bit, array)    ((array[LONG(bit)]>> OFF(bit)) & 1)
     
298. 
     
299. int main (int argc, char**argv)
     
300. {
     
301.     int fd, rd, i, j, k;
     
302.     struct input_event ev[64];
     
303.     int version;
     
304.     unsigned short id[4];
     
305.     unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
     
306.     char name[256]= "Unknown";
     
307.     int abs[5];
     
308. 
     
309.     if (argc< 2) {
     
310.         printf("Usage: evtest /dev/input/eventX\n");
     
311.         printf("Where X = input device number\n");
     
312.         return 1;
     
313.     }
     
314. 
     
315.     if ((fd= open(argv[argc- 1], O_RDONLY))< 0) {
     
316.         perror("evtest");
     
317.         return 1;
     
318.     }
     
319. 
     
320.     if (ioctl(fd, EVIOCGVERSION, &version)) {
     
321.         perror("evtest: can't get version");
     
322.         return 1;
     
323.     }
     
324. 
     
325.     printf("Input driver version is %d.%d.%d\n",
     
326.         version >> 16,(version >> 8) & 0xff, version & 0xff);
     
327. 
     
328.     ioctl(fd, EVIOCGID, id);
     
329.     printf("Input device ID: bus 0x%x vendor 0x%x product 0x%x version 0x%x\n",
     
330.         id[ID_BUS], id[ID_VENDOR], id[ID_PRODUCT], id[ID_VERSION]);
     
331. 
     
332.     ioctl(fd, EVIOCGNAME(sizeof(name)),name);
     
333.     printf("Input device name: \"%s\"\n",name);
     
334. 
     
335.     memset(bit, 0,sizeof(bit));
     
336.     ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
     
337.     printf("Supported events:\n");
     
338. 
     
339.     for (i= 0; i < EV_MAX; i++)
     
340.         if (test_bit(i, bit[0])) {
     
341.             printf(" Event type %d (%s)\n", i, events[i]? events[i]: "?");
     
342.             if (!i) continue;
     
343.             ioctl(fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
     
344.             for (j = 0; j< KEY_MAX; j++)
     
345.                 if (test_bit(j, bit[i])) {
     
346.                     printf(" Event code %d (%s)\n", j, names[i]? (names[i][j]? names[i][j]: "?"): "?");
     
347.                     if (i == EV_ABS) {
     
348.                         ioctl(fd, EVIOCGABS(j), abs);
     
349.                         for (k = 0; k< 5; k++)
     
350.                             if ((k < 3)|| abs[k])
     
351.                                 printf(" %s %6d\n", absval[k], abs[k]);
     
352.                     }
     
353.                 }
     
354.         }
     
355.         
     
356. 
     
357.     printf("Testing ... (interrupt to exit)\n");
     
358. 
     
359.     while (1) {
     
360.         rd = read(fd, ev,sizeof(struct input_event)* 64);
     
361. 
     
362.         if (rd< (int)sizeof(struct input_event)) {
     
363.             printf("yyy\n");
     
364.             perror("\nevtest: error reading");
     
365.             return 1;
     
366.         }
     
367. 
     
368.         for (i= 0; i < rd / sizeof(struct input_event); i++)
     
369. 
     
370.             if (ev[i].type== EV_SYN) {
     
371.                 printf("Event: time %ld.%06ld, -------------- %s ------------\n",
     
372.                     ev[i].time.tv_sec, ev[i].time.tv_usec, ev[i].code? "Config Sync": "Report Sync");
     
373.             } else if (ev[i].type== EV_MSC &&(ev[i].code== MSC_RAW || ev[i].code== MSC_SCAN)) {
     
374.                 printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %02x\n",
     
375.                     ev[i].time.tv_sec, ev[i].time.tv_usec, ev[i].type,
     
376.                     events[ev[i].type]? events[ev[i].type]: "?",
     
377.                     ev[i].code,
     
378.                     names[ev[i].type]? (names[ev[i].type][ev[i].code]? names[ev[i].type][ev[i].code]: "?"): "?",
     
379.                     ev[i].value);
     
380.             } else {
     
381.                 printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %d\n",
     
382.                     ev[i].time.tv_sec, ev[i].time.tv_usec, ev[i].type,
     
383.                     events[ev[i].type]? events[ev[i].type]: "?",
     
384.                     ev[i].code,
     
385.                     names[ev[i].type]? (names[ev[i].type][ev[i].code]? names[ev[i].type][ev[i].code]: "?"): "?",
     
386.                     ev[i].value);
     
387.             }    
     
388. 
     
389.     }
     
390. }

gcc  Evtest.c -o evtest

getevent单独提取出来在linux下编译做了些修改

getevent.h

点击(此处)折叠或打开

1. #include <linux/input.h>
   
2. #include <stdio.h>
   
3. 
   
4. struct label {
   
5.     const char *name;
   
6.     int value;
   
7. };
   
8. 
   
9. #define LABEL(constant) { #constant, constant }
   
10. #define LABEL_END { NULL, -1 }
    
11. 
    
12. static struct label input_prop_labels[]= {
    
13.         LABEL(INPUT_PROP_POINTER),
    
14.         LABEL(INPUT_PROP_DIRECT),
    
15.         LABEL(INPUT_PROP_BUTTONPAD),
    
16.         LABEL(INPUT_PROP_SEMI_MT),
    
17.         LABEL_END,
    
18. };
    
19. 
    
20. static struct label ev_labels[]= {
    
21.         LABEL(EV_SYN),
    
22.         LABEL(EV_KEY),
    
23.         LABEL(EV_REL),
    
24.         LABEL(EV_ABS),
    
25.         LABEL(EV_MSC),
    
26.         LABEL(EV_SW),
    
27.         LABEL(EV_LED),
    
28.         LABEL(EV_SND),
    
29.         LABEL(EV_REP),
    
30.         LABEL(EV_FF),
    
31.         LABEL(EV_PWR),
    
32.         LABEL(EV_FF_STATUS),
    
33.         LABEL_END,
    
34. };
    
35. 
    
36. static struct label syn_labels[]= {
    
37.         LABEL(SYN_REPORT),
    
38.         LABEL(SYN_CONFIG),
    
39.         LABEL(SYN_MT_REPORT),
    
40.         LABEL(SYN_DROPPED),
    
41.         LABEL_END,
    
42. };
    
43. 
    
44. static struct label key_labels[]= {
    
45.         LABEL(KEY_RESERVED),
    
46.         LABEL(KEY_ESC),
    
47.         LABEL(KEY_1),
    
48.         LABEL(KEY_2),
    
49.         LABEL(KEY_3),
    
50.         LABEL(KEY_4),
    
51.         LABEL(KEY_5),
    
52.         LABEL(KEY_6),
    
53.         LABEL(KEY_7),
    
54.         LABEL(KEY_8),
    
55.         LABEL(KEY_9),
    
56.         LABEL(KEY_0),
    
57.         LABEL(KEY_MINUS),
    
58.         LABEL(KEY_EQUAL),
    
59.         LABEL(KEY_BACKSPACE),
    
60.         LABEL(KEY_TAB),
    
61.         LABEL(KEY_Q),
    
62.         LABEL(KEY_W),
    
63.         LABEL(KEY_E),
    
64.         LABEL(KEY_R),
    
65.         LABEL(KEY_T),
    
66.         LABEL(KEY_Y),
    
67.         LABEL(KEY_U),
    
68.         LABEL(KEY_I),
    
69.         LABEL(KEY_O),
    
70.         LABEL(KEY_P),
    
71.         LABEL(KEY_LEFTBRACE),
    
72.         LABEL(KEY_RIGHTBRACE),
    
73.         LABEL(KEY_ENTER),
    
74.         LABEL(KEY_LEFTCTRL),
    
75.         LABEL(KEY_A),
    
76.         LABEL(KEY_S),
    
77.         LABEL(KEY_D),
    
78.         LABEL(KEY_F),
    
79.         LABEL(KEY_G),
    
80.         LABEL(KEY_H),
    
81.         LABEL(KEY_J),
    
82.         LABEL(KEY_K),
    
83.         LABEL(KEY_L),
    
84.         LABEL(KEY_SEMICOLON),
    
85.         LABEL(KEY_APOSTROPHE),
    
86.         LABEL(KEY_GRAVE),
    
87.         LABEL(KEY_LEFTSHIFT),
    
88.         LABEL(KEY_BACKSLASH),
    
89.         LABEL(KEY_Z),
    
90.         LABEL(KEY_X),
    
91.         LABEL(KEY_C),
    
92.         LABEL(KEY_V),
    
93.         LABEL(KEY_B),
    
94.         LABEL(KEY_N),
    
95.         LABEL(KEY_M),
    
96.         LABEL(KEY_COMMA),
    
97.         LABEL(KEY_DOT),
    
98.         LABEL(KEY_SLASH),
    
99.         LABEL(KEY_RIGHTSHIFT),
    
100.         LABEL(KEY_KPASTERISK),
     
101.         LABEL(KEY_LEFTALT),
     
102.         LABEL(KEY_SPACE),
     
103.         LABEL(KEY_CAPSLOCK),
     
104.         LABEL(KEY_F1),
     
105.         LABEL(KEY_F2),
     
106.         LABEL(KEY_F3),
     
107.         LABEL(KEY_F4),
     
108.         LABEL(KEY_F5),
     
109.         LABEL(KEY_F6),
     
110.         LABEL(KEY_F7),
     
111.         LABEL(KEY_F8),
     
112.         LABEL(KEY_F9),
     
113.         LABEL(KEY_F10),
     
114.         LABEL(KEY_NUMLOCK),
     
115.         LABEL(KEY_SCROLLLOCK),
     
116.         LABEL(KEY_KP7),
     
117.         LABEL(KEY_KP8),
     
118.         LABEL(KEY_KP9),
     
119.         LABEL(KEY_KPMINUS),
     
120.         LABEL(KEY_KP4),
     
121.         LABEL(KEY_KP5),
     
122.         LABEL(KEY_KP6),
     
123.         LABEL(KEY_KPPLUS),
     
124.         LABEL(KEY_KP1),
     
125.         LABEL(KEY_KP2),
     
126.         LABEL(KEY_KP3),
     
127.         LABEL(KEY_KP0),
     
128.         LABEL(KEY_KPDOT),
     
129.         LABEL(KEY_ZENKAKUHANKAKU),
     
130.         LABEL(KEY_102ND),
     
131.         LABEL(KEY_F11),
     
132.         LABEL(KEY_F12),
     
133.         LABEL(KEY_RO),
     
134.         LABEL(KEY_KATAKANA),
     
135.         LABEL(KEY_HIRAGANA),
     
136.         LABEL(KEY_HENKAN),
     
137.         LABEL(KEY_KATAKANAHIRAGANA),
     
138.         LABEL(KEY_MUHENKAN),
     
139.         LABEL(KEY_KPJPCOMMA),
     
140.         LABEL(KEY_KPENTER),
     
141.         LABEL(KEY_RIGHTCTRL),
     
142.         LABEL(KEY_KPSLASH),
     
143.         LABEL(KEY_SYSRQ),
     
144.         LABEL(KEY_RIGHTALT),
     
145.         LABEL(KEY_LINEFEED),
     
146.         LABEL(KEY_HOME),
     
147.         LABEL(KEY_UP),
     
148.         LABEL(KEY_PAGEUP),
     
149.         LABEL(KEY_LEFT),
     
150.         LABEL(KEY_RIGHT),
     
151.         LABEL(KEY_END),
     
152.         LABEL(KEY_DOWN),
     
153.         LABEL(KEY_PAGEDOWN),
     
154.         LABEL(KEY_INSERT),
     
155.         LABEL(KEY_DELETE),
     
156.         LABEL(KEY_MACRO),
     
157.         LABEL(KEY_MUTE),
     
158.         LABEL(KEY_VOLUMEDOWN),
     
159.         LABEL(KEY_VOLUMEUP),
     
160.         LABEL(KEY_POWER),
     
161.         LABEL(KEY_KPEQUAL),
     
162.         LABEL(KEY_KPPLUSMINUS),
     
163.         LABEL(KEY_PAUSE),
     
164.         LABEL(KEY_SCALE),
     
165.         LABEL(KEY_KPCOMMA),
     
166.         LABEL(KEY_HANGEUL),
     
167.         LABEL(KEY_HANGUEL),
     
168.         LABEL(KEY_HANJA),
     
169.         LABEL(KEY_YEN),
     
170.         LABEL(KEY_LEFTMETA),
     
171.         LABEL(KEY_RIGHTMETA),
     
172.         LABEL(KEY_COMPOSE),
     
173.         LABEL(KEY_STOP),
     
174.         LABEL(KEY_AGAIN),
     
175.         LABEL(KEY_PROPS),
     
176.         LABEL(KEY_UNDO),
     
177.         LABEL(KEY_FRONT),
     
178.         LABEL(KEY_COPY),
     
179.         LABEL(KEY_OPEN),
     
180.         LABEL(KEY_PASTE),
     
181.         LABEL(KEY_FIND),
     
182.         LABEL(KEY_CUT),
     
183.         LABEL(KEY_HELP),
     
184.         LABEL(KEY_MENU),
     
185.         LABEL(KEY_CALC),
     
186.         LABEL(KEY_SETUP),
     
187.         LABEL(KEY_SLEEP),
     
188.         LABEL(KEY_WAKEUP),
     
189.         LABEL(KEY_FILE),
     
190.         LABEL(KEY_SENDFILE),
     
191.         LABEL(KEY_DELETEFILE),
     
192.         LABEL(KEY_XFER),
     
193.         LABEL(KEY_PROG1),
     
194.         LABEL(KEY_PROG2),
     
195.         LABEL(KEY_WWW),
     
196.         LABEL(KEY_MSDOS),
     
197.         LABEL(KEY_COFFEE),
     
198.         LABEL(KEY_SCREENLOCK),
     
199.         LABEL(KEY_DIRECTION),
     
200.         LABEL(KEY_CYCLEWINDOWS),
     
201.         LABEL(KEY_MAIL),
     
202.         LABEL(KEY_BOOKMARKS),
     
203.         LABEL(KEY_COMPUTER),
     
204.         LABEL(KEY_BACK),
     
205.         LABEL(KEY_FORWARD),
     
206.         LABEL(KEY_CLOSECD),
     
207.         LABEL(KEY_EJECTCD),
     
208.         LABEL(KEY_EJECTCLOSECD),
     
209.         LABEL(KEY_NEXTSONG),
     
210.         LABEL(KEY_PLAYPAUSE),
     
211.         LABEL(KEY_PREVIOUSSONG),
     
212.         LABEL(KEY_STOPCD),
     
213.         LABEL(KEY_RECORD),
     
214.         LABEL(KEY_REWIND),
     
215.         LABEL(KEY_PHONE),
     
216.         LABEL(KEY_ISO),
     
217.         LABEL(KEY_CONFIG),
     
218.         LABEL(KEY_HOMEPAGE),
     
219.         LABEL(KEY_REFRESH),
     
220.         LABEL(KEY_EXIT),
     
221.         LABEL(KEY_MOVE),
     
222.         LABEL(KEY_EDIT),
     
223.         LABEL(KEY_SCROLLUP),
     
224.         LABEL(KEY_SCROLLDOWN),
     
225.         LABEL(KEY_KPLEFTPAREN),
     
226.         LABEL(KEY_KPRIGHTPAREN),
     
227.         LABEL(KEY_NEW),
     
228.         LABEL(KEY_REDO),
     
229.         LABEL(KEY_F13),
     
230.         LABEL(KEY_F14),
     
231.         LABEL(KEY_F15),
     
232.         LABEL(KEY_F16),
     
233.         LABEL(KEY_F17),
     
234.         LABEL(KEY_F18),
     
235.         LABEL(KEY_F19),
     
236.         LABEL(KEY_F20),
     
237.         LABEL(KEY_F21),
     
238.         LABEL(KEY_F22),
     
239.         LABEL(KEY_F23),
     
240.         LABEL(KEY_F24),
     
241.         LABEL(KEY_PLAYCD),
     
242.         LABEL(KEY_PAUSECD),
     
243.         LABEL(KEY_PROG3),
     
244.         LABEL(KEY_PROG4),
     
245.         LABEL(KEY_DASHBOARD),
     
246.         LABEL(KEY_SUSPEND),
     
247.         LABEL(KEY_CLOSE),
     
248.         LABEL(KEY_PLAY),
     
249.         LABEL(KEY_FASTFORWARD),
     
250.         LABEL(KEY_BASSBOOST),
     
251.         LABEL(KEY_PRINT),
     
252.         LABEL(KEY_HP),
     
253.         LABEL(KEY_CAMERA),
     
254.         LABEL(KEY_SOUND),
     
255.         LABEL(KEY_QUESTION),
     
256.         LABEL(KEY_EMAIL),
     
257.         LABEL(KEY_CHAT),
     
258.         LABEL(KEY_SEARCH),
     
259.         LABEL(KEY_CONNECT),
     
260.         LABEL(KEY_FINANCE),
     
261.         LABEL(KEY_SPORT),
     
262.         LABEL(KEY_SHOP),
     
263.         LABEL(KEY_ALTERASE),
     
264.         LABEL(KEY_CANCEL),
     
265.         LABEL(KEY_BRIGHTNESSDOWN),
     
266.         LABEL(KEY_BRIGHTNESSUP),
     
267.         LABEL(KEY_MEDIA),
     
268.         LABEL(KEY_SWITCHVIDEOMODE),
     
269.         LABEL(KEY_KBDILLUMTOGGLE),
     
270.         LABEL(KEY_KBDILLUMDOWN),
     
271.         LABEL(KEY_KBDILLUMUP),
     
272.         LABEL(KEY_SEND),
     
273.         LABEL(KEY_REPLY),
     
274.         LABEL(KEY_FORWARDMAIL),
     
275.         LABEL(KEY_SAVE),
     
276.         LABEL(KEY_DOCUMENTS),
     
277.         LABEL(KEY_BATTERY),
     
278.         LABEL(KEY_BLUETOOTH),
     
279.         LABEL(KEY_WLAN),
     
280.         LABEL(KEY_UWB),
     
281.         LABEL(KEY_UNKNOWN),
     
282.         LABEL(KEY_VIDEO_NEXT),
     
283.         LABEL(KEY_VIDEO_PREV),
     
284.         LABEL(KEY_BRIGHTNESS_CYCLE),
     
285.         LABEL(KEY_BRIGHTNESS_ZERO),
     
286.         LABEL(KEY_DISPLAY_OFF),
     
287.         LABEL(KEY_WIMAX),
     
288.         LABEL(KEY_RFKILL),
     
289.         LABEL(BTN_0),
     
290.         LABEL(BTN_1),
     
291.         LABEL(BTN_2),
     
292.         LABEL(BTN_3),
     
293.         LABEL(BTN_4),
     
294.         LABEL(BTN_5),
     
295.         LABEL(BTN_6),
     
296.         LABEL(BTN_7),
     
297.         LABEL(BTN_8),
     
298.         LABEL(BTN_9),
     
299.         LABEL(BTN_LEFT),
     
300.         LABEL(BTN_RIGHT),
     
301.         LABEL(BTN_MIDDLE),
     
302.         LABEL(BTN_SIDE),
     
303.         LABEL(BTN_EXTRA),
     
304.         LABEL(BTN_FORWARD),
     
305.         LABEL(BTN_BACK),
     
306.         LABEL(BTN_TASK),
     
307.         LABEL(BTN_JOYSTICK),
     
308.         LABEL(BTN_TRIGGER),
     
309.         LABEL(BTN_THUMB),
     
310.         LABEL(BTN_THUMB2),
     
311.         LABEL(BTN_TOP),
     
312.         LABEL(BTN_TOP2),
     
313.         LABEL(BTN_PINKIE),
     
314.         LABEL(BTN_BASE),
     
315.         LABEL(BTN_BASE2),
     
316.         LABEL(BTN_BASE3),
     
317.         LABEL(BTN_BASE4),
     
318.         LABEL(BTN_BASE5),
     
319.         LABEL(BTN_BASE6),
     
320.         LABEL(BTN_DEAD),
     
321.         LABEL(BTN_A),
     
322.         LABEL(BTN_B),
     
323.         LABEL(BTN_C),
     
324.         LABEL(BTN_X),
     
325.         LABEL(BTN_Y),
     
326.         LABEL(BTN_Z),
     
327.         LABEL(BTN_TL),
     
328.         LABEL(BTN_TR),
     
329.         LABEL(BTN_TL2),
     
330.         LABEL(BTN_TR2),
     
331.         LABEL(BTN_SELECT),
     
332.         LABEL(BTN_START),
     
333.         LABEL(BTN_MODE),
     
334.         LABEL(BTN_THUMBL),
     
335.         LABEL(BTN_THUMBR),
     
336.         LABEL(BTN_TOOL_PEN),
     
337.         LABEL(BTN_TOOL_RUBBER),
     
338.         LABEL(BTN_TOOL_BRUSH),
     
339.         LABEL(BTN_TOOL_PENCIL),
     
340.         LABEL(BTN_TOOL_AIRBRUSH),
     
341.         LABEL(BTN_TOOL_FINGER),
     
342.         LABEL(BTN_TOOL_MOUSE),
     
343.         LABEL(BTN_TOOL_LENS),
     
344.         LABEL(BTN_TOUCH),
     
345.         LABEL(BTN_STYLUS),
     
346.         LABEL(BTN_STYLUS2),
     
347.         LABEL(BTN_TOOL_DOUBLETAP),
     
348.         LABEL(BTN_TOOL_TRIPLETAP),
     
349.         LABEL(BTN_TOOL_QUADTAP),
     
350.         LABEL(BTN_GEAR_DOWN),
     
351.         LABEL(BTN_GEAR_UP),
     
352.         LABEL(KEY_OK),
     
353.         LABEL(KEY_SELECT),
     
354.         LABEL(KEY_GOTO),
     
355.         LABEL(KEY_CLEAR),
     
356.         LABEL(KEY_POWER2),
     
357.         LABEL(KEY_OPTION),
     
358.         LABEL(KEY_INFO),
     
359.         LABEL(KEY_TIME),
     
360.         LABEL(KEY_VENDOR),
     
361.         LABEL(KEY_ARCHIVE),
     
362.         LABEL(KEY_PROGRAM),
     
363.         LABEL(KEY_CHANNEL),
     
364.         LABEL(KEY_FAVORITES),
     
365.         LABEL(KEY_EPG),
     
366.         LABEL(KEY_PVR),
     
367.         LABEL(KEY_MHP),
     
368.         LABEL(KEY_LANGUAGE),
     
369.         LABEL(KEY_TITLE),
     
370.         LABEL(KEY_SUBTITLE),
     
371.         LABEL(KEY_ANGLE),
     
372.         LABEL(KEY_ZOOM),
     
373.         LABEL(KEY_MODE),
     
374.         LABEL(KEY_KEYBOARD),
     
375.         LABEL(KEY_SCREEN),
     
376.         LABEL(KEY_PC),
     
377.         LABEL(KEY_TV),
     
378.         LABEL(KEY_TV2),
     
379.         LABEL(KEY_VCR),
     
380.         LABEL(KEY_VCR2),
     
381.         LABEL(KEY_SAT),
     
382.         LABEL(KEY_SAT2),
     
383.         LABEL(KEY_CD),
     
384.         LABEL(KEY_TAPE),
     
385.         LABEL(KEY_RADIO),
     
386.         LABEL(KEY_TUNER),
     
387.         LABEL(KEY_PLAYER),
     
388.         LABEL(KEY_TEXT),
     
389.         LABEL(KEY_DVD),
     
390.         LABEL(KEY_AUX),
     
391.         LABEL(KEY_MP3),
     
392.         LABEL(KEY_AUDIO),
     
393.         LABEL(KEY_VIDEO),
     
394.         LABEL(KEY_DIRECTORY),
     
395.         LABEL(KEY_LIST),
     
396.         LABEL(KEY_MEMO),
     
397.         LABEL(KEY_CALENDAR),
     
398.         LABEL(KEY_RED),
     
399.         LABEL(KEY_GREEN),
     
400.         LABEL(KEY_YELLOW),
     
401.         LABEL(KEY_BLUE),
     
402.         LABEL(KEY_CHANNELUP),
     
403.         LABEL(KEY_CHANNELDOWN),
     
404.         LABEL(KEY_FIRST),
     
405.         LABEL(KEY_LAST),
     
406.         LABEL(KEY_AB),
     
407.         LABEL(KEY_NEXT),
     
408.         LABEL(KEY_RESTART),
     
409.         LABEL(KEY_SLOW),
     
410.         LABEL(KEY_SHUFFLE),
     
411.         LABEL(KEY_BREAK),
     
412.         LABEL(KEY_PREVIOUS),
     
413.         LABEL(KEY_DIGITS),
     
414.         LABEL(KEY_TEEN),
     
415.         LABEL(KEY_TWEN),
     
416.         LABEL(KEY_VIDEOPHONE),
     
417.         LABEL(KEY_GAMES),
     
418.         LABEL(KEY_ZOOMIN),
     
419.         LABEL(KEY_ZOOMOUT),
     
420.         LABEL(KEY_ZOOMRESET),
     
421.         LABEL(KEY_WORDPROCESSOR),
     
422.         LABEL(KEY_EDITOR),
     
423.         LABEL(KEY_SPREADSHEET),
     
424.         LABEL(KEY_GRAPHICSEDITOR),
     
425.         LABEL(KEY_PRESENTATION),
     
426.         LABEL(KEY_DATABASE),
     
427.         LABEL(KEY_NEWS),
     
428.         LABEL(KEY_VOICEMAIL),
     
429.         LABEL(KEY_ADDRESSBOOK),
     
430.         LABEL(KEY_MESSENGER),
     
431.         LABEL(KEY_DISPLAYTOGGLE),
     
432.         LABEL(KEY_SPELLCHECK),
     
433.         LABEL(KEY_LOGOFF),
     
434.         LABEL(KEY_DOLLAR),
     
435.         LABEL(KEY_EURO),
     
436.         LABEL(KEY_FRAMEBACK),
     
437.         LABEL(KEY_FRAMEFORWARD),
     
438.         LABEL(KEY_CONTEXT_MENU),
     
439.         LABEL(KEY_MEDIA_REPEAT),
     
440.         LABEL(KEY_10CHANNELSUP),
     
441.         LABEL(KEY_10CHANNELSDOWN),
     
442.         LABEL(KEY_IMAGES),
     
443.         LABEL(KEY_DEL_EOL),
     
444.         LABEL(KEY_DEL_EOS),
     
445.         LABEL(KEY_INS_LINE),
     
446.         LABEL(KEY_DEL_LINE),
     
447.         LABEL(KEY_FN),
     
448.         LABEL(KEY_FN_ESC),
     
449.         LABEL(KEY_FN_F1),
     
450.         LABEL(KEY_FN_F2),
     
451.         LABEL(KEY_FN_F3),
     
452.         LABEL(KEY_FN_F4),
     
453.         LABEL(KEY_FN_F5),
     
454.         LABEL(KEY_FN_F6),
     
455.         LABEL(KEY_FN_F7),
     
456.         LABEL(KEY_FN_F8),
     
457.         LABEL(KEY_FN_F9),
     
458.         LABEL(KEY_FN_F10),
     
459.         LABEL(KEY_FN_F11),
     
460.         LABEL(KEY_FN_F12),
     
461.         LABEL(KEY_FN_1),
     
462.         LABEL(KEY_FN_2),
     
463.         LABEL(KEY_FN_D),
     
464.         LABEL(KEY_FN_E),
     
465.         LABEL(KEY_FN_F),
     
466.         LABEL(KEY_FN_S),
     
467.         LABEL(KEY_FN_B),
     
468.         LABEL(KEY_BRL_DOT1),
     
469.         LABEL(KEY_BRL_DOT2),
     
470.         LABEL(KEY_BRL_DOT3),
     
471.         LABEL(KEY_BRL_DOT4),
     
472.         LABEL(KEY_BRL_DOT5),
     
473.         LABEL(KEY_BRL_DOT6),
     
474.         LABEL(KEY_BRL_DOT7),
     
475.         LABEL(KEY_BRL_DOT8),
     
476.         LABEL(KEY_BRL_DOT9),
     
477.         LABEL(KEY_BRL_DOT10),
     
478.         LABEL(KEY_NUMERIC_0),
     
479.         LABEL(KEY_NUMERIC_1),
     
480.         LABEL(KEY_NUMERIC_2),
     
481.         LABEL(KEY_NUMERIC_3),
     
482.         LABEL(KEY_NUMERIC_4),
     
483.         LABEL(KEY_NUMERIC_5),
     
484.         LABEL(KEY_NUMERIC_6),
     
485.         LABEL(KEY_NUMERIC_7),
     
486.         LABEL(KEY_NUMERIC_8),
     
487.         LABEL(KEY_NUMERIC_9),
     
488.         LABEL(KEY_NUMERIC_STAR),
     
489.         LABEL(KEY_NUMERIC_POUND),
     
490.         LABEL(KEY_CAMERA_FOCUS),
     
491.         LABEL(KEY_WPS_BUTTON),
     
492.         LABEL(KEY_TOUCHPAD_TOGGLE),
     
493.         LABEL(KEY_TOUCHPAD_ON),
     
494.         LABEL(KEY_TOUCHPAD_OFF),
     
495.         LABEL(KEY_CAMERA_ZOOMIN),
     
496.         LABEL(KEY_CAMERA_ZOOMOUT),
     
497.         LABEL(KEY_CAMERA_UP),
     
498.         LABEL(KEY_CAMERA_DOWN),
     
499.         LABEL(KEY_CAMERA_LEFT),
     
500.         LABEL(KEY_CAMERA_RIGHT),
     
501.         LABEL(BTN_TRIGGER_HAPPY1),
     
502.         LABEL(BTN_TRIGGER_HAPPY2),
     
503.         LABEL(BTN_TRIGGER_HAPPY3),
     
504.         LABEL(BTN_TRIGGER_HAPPY4),
     
505.         LABEL(BTN_TRIGGER_HAPPY5),
     
506.         LABEL(BTN_TRIGGER_HAPPY6),
     
507.         LABEL(BTN_TRIGGER_HAPPY7),
     
508.         LABEL(BTN_TRIGGER_HAPPY8),
     
509.         LABEL(BTN_TRIGGER_HAPPY9),
     
510.         LABEL(BTN_TRIGGER_HAPPY10),
     
511.         LABEL(BTN_TRIGGER_HAPPY11),
     
512.         LABEL(BTN_TRIGGER_HAPPY12),
     
513.         LABEL(BTN_TRIGGER_HAPPY13),
     
514.         LABEL(BTN_TRIGGER_HAPPY14),
     
515.         LABEL(BTN_TRIGGER_HAPPY15),
     
516.         LABEL(BTN_TRIGGER_HAPPY16),
     
517.         LABEL(BTN_TRIGGER_HAPPY17),
     
518.         LABEL(BTN_TRIGGER_HAPPY18),
     
519.         LABEL(BTN_TRIGGER_HAPPY19),
     
520.         LABEL(BTN_TRIGGER_HAPPY20),
     
521.         LABEL(BTN_TRIGGER_HAPPY21),
     
522.         LABEL(BTN_TRIGGER_HAPPY22),
     
523.         LABEL(BTN_TRIGGER_HAPPY23),
     
524.         LABEL(BTN_TRIGGER_HAPPY24),
     
525.         LABEL(BTN_TRIGGER_HAPPY25),
     
526.         LABEL(BTN_TRIGGER_HAPPY26),
     
527.         LABEL(BTN_TRIGGER_HAPPY27),
     
528.         LABEL(BTN_TRIGGER_HAPPY28),
     
529.         LABEL(BTN_TRIGGER_HAPPY29),
     
530.         LABEL(BTN_TRIGGER_HAPPY30),
     
531.         LABEL(BTN_TRIGGER_HAPPY31),
     
532.         LABEL(BTN_TRIGGER_HAPPY32),
     
533.         LABEL(BTN_TRIGGER_HAPPY33),
     
534.         LABEL(BTN_TRIGGER_HAPPY34),
     
535.         LABEL(BTN_TRIGGER_HAPPY35),
     
536.         LABEL(BTN_TRIGGER_HAPPY36),
     
537.         LABEL(BTN_TRIGGER_HAPPY37),
     
538.         LABEL(BTN_TRIGGER_HAPPY38),
     
539.         LABEL(BTN_TRIGGER_HAPPY39),
     
540.         LABEL(BTN_TRIGGER_HAPPY40),
     
541.         LABEL_END,
     
542. };
     
543. 
     
544. static struct label rel_labels[]= {
     
545.         LABEL(REL_X),
     
546.         LABEL(REL_Y),
     
547.         LABEL(REL_Z),
     
548.         LABEL(REL_RX),
     
549.         LABEL(REL_RY),
     
550.         LABEL(REL_RZ),
     
551.         LABEL(REL_HWHEEL),
     
552.         LABEL(REL_DIAL),
     
553.         LABEL(REL_WHEEL),
     
554.         LABEL(REL_MISC),
     
555.         LABEL_END,
     
556. };
     
557. 
     
558. static struct label abs_labels[]= {
     
559.         LABEL(ABS_X),
     
560.         LABEL(ABS_Y),
     
561.         LABEL(ABS_Z),
     
562.         LABEL(ABS_RX),
     
563.         LABEL(ABS_RY),
     
564.         LABEL(ABS_RZ),
     
565.         LABEL(ABS_THROTTLE),
     
566.         LABEL(ABS_RUDDER),
     
567.         LABEL(ABS_WHEEL),
     
568.         LABEL(ABS_GAS),
     
569.         LABEL(ABS_BRAKE),
     
570.         LABEL(ABS_HAT0X),
     
571.         LABEL(ABS_HAT0Y),
     
572.         LABEL(ABS_HAT1X),
     
573.         LABEL(ABS_HAT1Y),
     
574.         LABEL(ABS_HAT2X),
     
575.         LABEL(ABS_HAT2Y),
     
576.         LABEL(ABS_HAT3X),
     
577.         LABEL(ABS_HAT3Y),
     
578.         LABEL(ABS_PRESSURE),
     
579.         LABEL(ABS_DISTANCE),
     
580.         LABEL(ABS_TILT_X),
     
581.         LABEL(ABS_TILT_Y),
     
582.         LABEL(ABS_TOOL_WIDTH),
     
583.         LABEL(ABS_VOLUME),
     
584.         LABEL(ABS_MISC),
     
585.         LABEL(ABS_MT_SLOT),
     
586.         LABEL(ABS_MT_TOUCH_MAJOR),
     
587.         LABEL(ABS_MT_TOUCH_MINOR),
     
588.         LABEL(ABS_MT_WIDTH_MAJOR),
     
589.         LABEL(ABS_MT_WIDTH_MINOR),
     
590.         LABEL(ABS_MT_ORIENTATION),
     
591.         LABEL(ABS_MT_POSITION_X),
     
592.         LABEL(ABS_MT_POSITION_Y),
     
593.         LABEL(ABS_MT_TOOL_TYPE),
     
594.         LABEL(ABS_MT_BLOB_ID),
     
595.         LABEL(ABS_MT_TRACKING_ID),
     
596.         LABEL(ABS_MT_PRESSURE),
     
597.         LABEL(ABS_MT_DISTANCE),
     
598.         LABEL_END,
     
599. };
     
600. 
     
601. static struct label sw_labels[]= {
     
602.         LABEL(SW_LID),
     
603.         LABEL(SW_TABLET_MODE),
     
604.         LABEL(SW_HEADPHONE_INSERT),
     
605.         LABEL(SW_RFKILL_ALL),
     
606.         LABEL(SW_RADIO),
     
607.         LABEL(SW_MICROPHONE_INSERT),
     
608.         LABEL(SW_DOCK),
     
609.         LABEL(SW_LINEOUT_INSERT),
     
610.         LABEL(SW_JACK_PHYSICAL_INSERT),
     
611.         LABEL(SW_VIDEOOUT_INSERT),
     
612.         LABEL(SW_CAMERA_LENS_COVER),
     
613.         LABEL(SW_KEYPAD_SLIDE),
     
614.         LABEL(SW_FRONT_PROXIMITY),
     
615.         LABEL(SW_ROTATE_LOCK),
     
616.         LABEL_END,
     
617. };
     
618. 
     
619. static struct label msc_labels[]= {
     
620.         LABEL(MSC_SERIAL),
     
621.         LABEL(MSC_PULSELED),
     
622.         LABEL(MSC_GESTURE),
     
623.         LABEL(MSC_RAW),
     
624.         LABEL(MSC_SCAN),
     
625.         LABEL_END,
     
626. };
     
627. 
     
628. static struct label led_labels[]= {
     
629.         LABEL(LED_NUML),
     
630.         LABEL(LED_CAPSL),
     
631.         LABEL(LED_SCROLLL),
     
632.         LABEL(LED_COMPOSE),
     
633.         LABEL(LED_KANA),
     
634.         LABEL(LED_SLEEP),
     
635.         LABEL(LED_SUSPEND),
     
636.         LABEL(LED_MUTE),
     
637.         LABEL(LED_MISC),
     
638.         LABEL(LED_MAIL),
     
639.         LABEL(LED_CHARGING),
     
640.         LABEL_END,
     
641. };
     
642. 
     
643. static struct label rep_labels[]= {
     
644.         LABEL(REP_DELAY),
     
645.         LABEL(REP_PERIOD),
     
646.         LABEL_END,
     
647. };
     
648. 
     
649. static struct label snd_labels[]= {
     
650.         LABEL(SND_CLICK),
     
651.         LABEL(SND_BELL),
     
652.         LABEL(SND_TONE),
     
653.         LABEL_END,
     
654. };
     
655. 
     
656. #if 0
     
657. static struct label id_labels[]= {
     
658.         LABEL(ID_BUS),
     
659.         LABEL(ID_VENDOR),
     
660.         LABEL(ID_PRODUCT),
     
661.         LABEL(ID_VERSION),
     
662.         LABEL_END,
     
663. };
     
664. static struct label bus_labels[]= {
     
665.         LABEL(BUS_PCI),
     
666.         LABEL(BUS_ISAPNP),
     
667.         LABEL(BUS_USB),
     
668.         LABEL(BUS_HIL),
     
669.         LABEL(BUS_BLUETOOTH),
     
670.         LABEL(BUS_VIRTUAL),
     
671.         LABEL(BUS_ISA),
     
672.         LABEL(BUS_I8042),
     
673.         LABEL(BUS_XTKBD),
     
674.         LABEL(BUS_RS232),
     
675.         LABEL(BUS_GAMEPORT),
     
676.         LABEL(BUS_PARPORT),
     
677.         LABEL(BUS_AMIGA),
     
678.         LABEL(BUS_ADB),
     
679.         LABEL(BUS_I2C),
     
680.         LABEL(BUS_HOST),
     
681.         LABEL(BUS_GSC),
     
682.         LABEL(BUS_ATARI),
     
683.         LABEL(BUS_SPI),
     
684.         LABEL_END,
     
685. };
     
686. #endif
     
687. 
     
688. static struct label mt_tool_labels[]= {
     
689.         LABEL(MT_TOOL_FINGER),
     
690.         LABEL(MT_TOOL_PEN),
     
691.         LABEL(MT_TOOL_MAX),
     
692.         LABEL_END,
     
693. };
     
694. 
     
695. static struct label ff_status_labels[]= {
     
696.         LABEL(FF_STATUS_STOPPED),
     
697.         LABEL(FF_STATUS_PLAYING),
     
698.         LABEL(FF_STATUS_MAX),
     
699.         LABEL_END,
     
700. };
     
701. 
     
702. static struct label ff_labels[]= {
     
703.         LABEL(FF_RUMBLE),
     
704.         LABEL(FF_PERIODIC),
     
705.         LABEL(FF_CONSTANT),
     
706.         LABEL(FF_SPRING),
     
707.         LABEL(FF_FRICTION),
     
708.         LABEL(FF_DAMPER),
     
709.         LABEL(FF_INERTIA),
     
710.         LABEL(FF_RAMP),
     
711.         LABEL(FF_SQUARE),
     
712.         LABEL(FF_TRIANGLE),
     
713.         LABEL(FF_SINE),
     
714.         LABEL(FF_SAW_UP),
     
715.         LABEL(FF_SAW_DOWN),
     
716.         LABEL(FF_CUSTOM),
     
717.         LABEL(FF_GAIN),
     
718.         LABEL(FF_AUTOCENTER),
     
719.         LABEL_END,
     
720. };
     
721. 
     
722. static struct label key_value_labels[]= {
     
723.         { "UP", 0 },
     
724.         { "DOWN", 1 },
     
725.         { "REPEAT", 2 },
     
726.         LABEL_END,
     
727. }

getevent.c

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1. #include <stdio.h>
   
2. #include <stdlib.h>
   
3. #include <string.h>
   
4. #include <stdint.h>
   
5. #include <dirent.h>
   
6. #include <fcntl.h>
   
7. #include <sys/ioctl.h>
   
8. #include <sys/inotify.h>
   
9. #include <linux/limits.h>
   
10. #include <sys/poll.h>
    
11. #include <linux/input.h>
    
12. #include <errno.h>
    
13. #include <unistd.h>
    
14. #include <time.h>
    
15. 
    
16. #include "getevent.h"
    
17. 
    
18. static struct pollfd *ufds;
    
19. static char **device_names;
    
20. static int nfds;
    
21. 
    
22. enum {
    
23.     PRINT_DEVICE_ERRORS = 1U << 0,
    
24.     PRINT_DEVICE = 1U << 1,
    
25.     PRINT_DEVICE_NAME = 1U << 2,
    
26.     PRINT_DEVICE_INFO = 1U << 3,
    
27.     PRINT_VERSION = 1U << 4,
    
28.     PRINT_POSSIBLE_EVENTS = 1U << 5,
    
29.     PRINT_INPUT_PROPS = 1U << 6,
    
30.     PRINT_HID_DESCRIPTOR = 1U << 7,
    
31. 
    
32.     PRINT_ALL_INFO = (1U << 8)- 1,
    
33. 
    
34.     PRINT_LABELS = 1U << 16,
    
35. };
    
36. 
    
37. static const char *get_label(const struct label*labels, int value)
    
38. {
    
39.     while(labels->name&& value != labels->value){
    
40.         labels++;
    
41.     }
    
42.     return labels->name;
    
43. }
    
44. 
    
45. static int print_input_props(int fd)
    
46. {
    
47.     uint8_t bits[INPUT_PROP_CNT / 8];
    
48.     int i, j;
    
49.     int res;
    
50.     int count;
    
51.     const char *bit_label;
    
52. 
    
53.     printf(" input props:\n");
    
54.     res = ioctl(fd, EVIOCGPROP(sizeof(bits)), bits);
    
55.     if(res< 0) {
    
56.         printf(");
    
57.         return 1;
    
58.     }
    
59.     count = 0;
    
60.     for(i= 0; i < res; i++){
    
61.         for(j= 0; j < 8; j++){
    
62.             if (bits[i]& 1 << j){
    
63.                 bit_label = get_label(input_prop_labels, i* 8 + j);
    
64.                 if(bit_label)
    
65.                     printf(" %s\n", bit_label);
    
66.                 else
    
67.                     printf(" %04x\n", i* 8 + j);
    
68.                 count++;
    
69.             }
    
70.         }
    
71.     }
    
72.     if (!count)
    
73.         printf(" \n");
    
74.     return 0;
    
75. }
    
76. 
    
77. static int print_possible_events(int fd,int print_flags)
    
78. {
    
79.     uint8_t *bits = NULL;
    
80.     ssize_t bits_size = 0;
    
81.     const char* label;
    
82.     int i, j, k;
    
83.     int res, res2;
    
84.     struct label* bit_labels;
    
85.     const char *bit_label;
    
86. 
    
87.     printf(" events:\n");
    
88.     for(i= EV_KEY; i<= EV_MAX; i++){ // skip EV_SYN since we cannot query its available codes
    
89.         int count = 0;
    
90.         while(1){
    
91.             res = ioctl(fd, EVIOCGBIT(i, bits_size), bits);
    
92.             if(res< bits_size)
    
93.                 break;
    
94.             bits_size = res + 16;
    
95.             bits = realloc(bits, bits_size* 2);
    
96.             if(bits== NULL) {
    
97.                 fprintf(stderr,"failed to allocate buffer of size %d\n",(int)bits_size);
    
98.                 return 1;
    
99.             }
    
100.         }
     
101.         res2 = 0;
     
102.         switch(i){
     
103.             case EV_KEY:
     
104.                 res2 = ioctl(fd, EVIOCGKEY(res), bits + bits_size);
     
105.                 label = "KEY";
     
106.                 bit_labels = key_labels;
     
107.                 break;
     
108.             case EV_REL:
     
109.                 label = "REL";
     
110.                 bit_labels = rel_labels;
     
111.                 break;
     
112.             case EV_ABS:
     
113.                 label = "ABS";
     
114.                 bit_labels = abs_labels;
     
115.                 break;
     
116.             case EV_MSC:
     
117.                 label = "MSC";
     
118.                 bit_labels = msc_labels;
     
119.                 break;
     
120.             case EV_LED:
     
121.                 res2 = ioctl(fd, EVIOCGLED(res), bits + bits_size);
     
122.                 label = "LED";
     
123.                 bit_labels = led_labels;
     
124.                 break;
     
125.             case EV_SND:
     
126.                 res2 = ioctl(fd, EVIOCGSND(res), bits + bits_size);
     
127.                 label = "SND";
     
128.                 bit_labels = snd_labels;
     
129.                 break;
     
130.             case EV_SW:
     
131.                 res2 = ioctl(fd, EVIOCGSW(bits_size), bits + bits_size);
     
132.                 label = "SW ";
     
133.                 bit_labels = sw_labels;
     
134.                 break;
     
135.             case EV_REP:
     
136.                 label = "REP";
     
137.                 bit_labels = rep_labels;
     
138.                 break;
     
139.             case EV_FF:
     
140.                 label = "FF ";
     
141.                 bit_labels = ff_labels;
     
142.                 break;
     
143.             case EV_PWR:
     
144.                 label = "PWR";
     
145.                 bit_labels = NULL;
     
146.                 break;
     
147.             case EV_FF_STATUS:
     
148.                 label = "FFS";
     
149.                 bit_labels = ff_status_labels;
     
150.                 break;
     
151.             default:
     
152.                 res2 = 0;
     
153.                 label = "???";
     
154.                 bit_labels = NULL;
     
155.         }
     
156.         for(j= 0; j < res; j++){
     
157.             for(k= 0; k < 8; k++)
     
158.                 if(bits[j]& 1 << k){
     
159.                     char down;
     
160.                     if(j< res2 &&(bits[j + bits_size] & 1 << k))
     
161.                         down = '*';
     
162.                     else
     
163.                         down = ' ';
     
164.                     if(count== 0)
     
165.                         printf(" %s (%04x):", label, i);
     
166.                     else if((count& (print_flags& PRINT_LABELS ? 0x3: 0x7))== 0 || i == EV_ABS)
     
167.                         printf("\n ");
     
168.                     if(bit_labels&& (print_flags & PRINT_LABELS)){
     
169.                         bit_label = get_label(bit_labels, j* 8 + k);
     
170.                         if(bit_label)
     
171.                             printf(" %.20s%c%*s", bit_label, down,(int)(20 - strlen(bit_label)),"");
     
172.                         else
     
173.                             printf(" %04x%c ", j* 8 + k, down);
     
174.                     } else {
     
175.                         printf(" %04x%c", j* 8 + k, down);
     
176.                     }
     
177.                     if(i== EV_ABS){
     
178.                         struct input_absinfo abs;
     
179.                         if(ioctl(fd, EVIOCGABS(j* 8 + k),&abs) == 0){
     
180.                             printf(" : value %d, min %d, max %d, fuzz %d, flat %d, resolution %d",
     
181.                                 abs.value, abs.minimum, abs.maximum, abs.fuzz, abs.flat,
     
182.                                 abs.resolution);
     
183.                         }
     
184.                     }
     
185.                     count++;
     
186.                 }
     
187.         }
     
188.         if(count)
     
189.             printf("\n");
     
190.     }
     
191.     free(bits);
     
192.     return 0;
     
193. }
     
194. 
     
195. static void print_event(int type,int code, int value, int print_flags)
     
196. {
     
197.     const char *type_label, *code_label, *value_label;
     
198. 
     
199.     if (print_flags& PRINT_LABELS){
     
200.         type_label = get_label(ev_labels, type);
     
201.         code_label = NULL;
     
202.         value_label = NULL;
     
203. 
     
204.         switch(type){
     
205.             case EV_SYN:
     
206.                 code_label = get_label(syn_labels, code);
     
207.                 break;
     
208.             case EV_KEY:
     
209.                 code_label = get_label(key_labels, code);
     
210.                 value_label = get_label(key_value_labels, value);
     
211.                 break;
     
212.             case EV_REL:
     
213.                 code_label = get_label(rel_labels, code);
     
214.                 break;
     
215.             case EV_ABS:
     
216.                 code_label = get_label(abs_labels, code);
     
217.                 switch(code){
     
218.                     case ABS_MT_TOOL_TYPE:
     
219.                         value_label = get_label(mt_tool_labels, value);
     
220.                 }
     
221.                 break;
     
222.             case EV_MSC:
     
223.                 code_label = get_label(msc_labels, code);
     
224.                 break;
     
225.             case EV_LED:
     
226.                 code_label = get_label(led_labels, code);
     
227.                 break;
     
228.             case EV_SND:
     
229.                 code_label = get_label(snd_labels, code);
     
230.                 break;
     
231.             case EV_SW:
     
232.                 code_label = get_label(sw_labels, code);
     
233.                 break;
     
234.             case EV_REP:
     
235.                 code_label = get_label(rep_labels, code);
     
236.                 break;
     
237.             case EV_FF:
     
238.                 code_label = get_label(ff_labels, code);
     
239.                 break;
     
240.             case EV_FF_STATUS:
     
241.                 code_label = get_label(ff_status_labels, code);
     
242.                 break;
     
243.         }
     
244. 
     
245.         if (type_label)
     
246.             printf("%-12.12s", type_label);
     
247.         else
     
248.             printf("%04x ", type);
     
249.         if (code_label)
     
250.             printf(" %-20.20s", code_label);
     
251.         else
     
252.             printf(" %04x ", code);
     
253.         if (value_label)
     
254.             printf(" %-20.20s", value_label);
     
255.         else
     
256.             printf(" %08x ", value);
     
257.     } else{
     
258.         printf("%04x %04x %08x", type, code, value);
     
259.     }
     
260. }
     
261. 
     
262. static void print_hid_descriptor(int bus,int vendor,int product)
     
263. {
     
264.     const char *dirname = "/sys/kernel/debug/hid";
     
265.     char prefix[16];
     
266.     DIR *dir;
     
267.     struct dirent *de;
     
268.     char filename[PATH_MAX];
     
269.     FILE *file;
     
270.     char line[2048];
     
271. 
     
272.     snprintf(prefix, sizeof(prefix),"%04X:%04X:%04X.", bus, vendor, product);
     
273. 
     
274.     dir = opendir(dirname);
     
275.     if(dir== NULL)
     
276.         return;
     
277.     while((de= readdir(dir))){
     
278.         if (strstr(de->d_name, prefix)== de->d_name){
     
279.             snprintf(filename, sizeof(filename),"%s/%s/rdesc", dirname, de->d_name);
     
280. 
     
281.             file = fopen(filename,"r");
     
282.             if (file) {
     
283.                 printf(" HID descriptor: %s\n\n", de->d_name);
     
284.                 while (fgets(line, sizeof(line), file)){
     
285.                     fputs(" ", stdout);
     
286.                     fputs(line, stdout);
     
287.                 }
     
288.                 fclose(file);
     
289.                 puts("");
     
290.             }
     
291.         }
     
292.     }
     
293.     closedir(dir);
     
294. }
     
295. 
     
296. static int open_device(const char*device, int print_flags)
     
297. {
     
298.     int version;
     
299.     int fd;
     
300.     int clkid = CLOCK_MONOTONIC;
     
301.     struct pollfd *new_ufds;
     
302.     char **new_device_names;
     
303.     char name[80];
     
304.     char location[80];
     
305.     char idstr[80];
     
306.     struct input_id id;
     
307. 
     
308.     fd = open(device, O_RDWR);
     
309.     if(fd< 0) {
     
310.         if(print_flags& PRINT_DEVICE_ERRORS)
     
311.             fprintf(stderr,"could not open %s, %s\n", device, strerror(errno));
     
312.         return -1;
     
313.     }
     
314.     
     
315.     if(ioctl(fd, EVIOCGVERSION,&version)){
     
316.         if(print_flags& PRINT_DEVICE_ERRORS)
     
317.             fprintf(stderr,"could not get driver version for %s, %s\n", device, strerror(errno));
     
318.         return -1;
     
319.     }
     
320.     if(ioctl(fd, EVIOCGID,&id)){
     
321.         if(print_flags& PRINT_DEVICE_ERRORS)
     
322.             fprintf(stderr,"could not get driver id for %s, %s\n", device, strerror(errno));
     
323.         return -1;
     
324.     }
     
325.     name[sizeof(name)- 1] = '\0';
     
326.     location[sizeof(location)- 1] = '\0';
     
327.     idstr[sizeof(idstr)- 1] = '\0';
     
328.     if(ioctl(fd, EVIOCGNAME(sizeof(name)- 1),&name) < 1) {
     
329.         //fprintf(stderr,"could not get device name for %s, %s\n", device, strerror(errno));
     
330.         name[0]= '\0';
     
331.     }
     
332.     if(ioctl(fd, EVIOCGPHYS(sizeof(location)- 1),&location)< 1) {
     
333.         //fprintf(stderr,"could not get location for %s, %s\n", device, strerror(errno));
     
334.         location[0]= '\0';
     
335.     }
     
336.     if(ioctl(fd, EVIOCGUNIQ(sizeof(idstr)- 1),&idstr) < 1) {
     
337.         //fprintf(stderr,"could not get idstring for %s, %s\n", device, strerror(errno));
     
338.         idstr[0]= '\0';
     
339.     }
     
340. 
     
341.     if (ioctl(fd, EVIOCSCLOCKID,&clkid) != 0){
     
342.         fprintf(stderr,"Can't enable monotonic clock reporting: %s\n", strerror(errno));
     
343.         // a non-fatalerror
     
344.     }
     
345. 
     
346.     new_ufds = realloc(ufds, sizeof(ufds[0])* (nfds + 1));
     
347.     if(new_ufds== NULL) {
     
348.         fprintf(stderr,"out of memory\n");
     
349.         return -1;
     
350.     }
     
351.     ufds = new_ufds;
     
352.     new_device_names = realloc(device_names, sizeof(device_names[0])* (nfds + 1));
     
353.     if(new_device_names== NULL) {
     
354.         fprintf(stderr,"out of memory\n");
     
355.         return -1;
     
356.     }
     
357.     device_names = new_device_names;
     
358. 
     
359.     if(print_flags& PRINT_DEVICE)
     
360.         printf("add device %d: %s\n", nfds, device);
     
361.     if(print_flags& PRINT_DEVICE_INFO)
     
362.         printf(" bus: %04x\n"
     
363.                " vendor %04x\n"
     
364.                " product %04x\n"
     
365.                " version %04x\n",
     
366.                id.bustype, id.vendor, id.product, id.version);
     
367.     if(print_flags& PRINT_DEVICE_NAME)
     
368.         printf(" name: \"%s\"\n", name);
     
369.     if(print_flags& PRINT_DEVICE_INFO)
     
370.         printf(" location: \"%s\"\n"
     
371.                " id: \"%s\"\n",location, idstr);
     
372.     if(print_flags& PRINT_VERSION)
     
373.         printf(" version: %d.%d.%d\n",
     
374.                version >> 16,(version >> 8)& 0xff, version& 0xff);
     
375. 
     
376.     if(print_flags& PRINT_POSSIBLE_EVENTS){
     
377.         print_possible_events(fd, print_flags);
     
378.     }
     
379. 
     
380.     if(print_flags& PRINT_INPUT_PROPS){
     
381.         print_input_props(fd);
     
382.     }
     
383.     if(print_flags& PRINT_HID_DESCRIPTOR){
     
384.         print_hid_descriptor(id.bustype, id.vendor, id.product);
     
385.     }
     
386. 
     
387.     ufds[nfds].fd= fd;
     
388.     ufds[nfds].events= POLLIN;
     
389.     device_names[nfds]= strdup(device);
     
390.     nfds++;
     
391. 
     
392.     return 0;
     
393. }
     
394. 
     
395. int close_device(const char*device, int print_flags)
     
396. {
     
397.     int i;
     
398.     for(i= 1; i < nfds; i++){
     
399.         if(strcmp(device_names[i], device)== 0){
     
400.             int count = nfds - i - 1;
     
401.             if(print_flags& PRINT_DEVICE)
     
402.                 printf("remove device %d: %s\n", i, device);
     
403.             free(device_names[i]);
     
404.             memmove(device_names + i, device_names + i + 1, sizeof(device_names[0])* count);
     
405.             memmove(ufds + i, ufds + i+ 1, sizeof(ufds[0])* count);
     
406.             nfds--;
     
407.             return 0;
     
408.         }
     
409.     }
     
410.     if(print_flags& PRINT_DEVICE_ERRORS)
     
411.         fprintf(stderr,"remote device: %s not found\n", device);
     
412.     return -1;
     
413. }
     
414. 
     
415. static int read_notify(const char*dirname, int nfd, int print_flags)
     
416. {
     
417.     int res;
     
418.     char devname[PATH_MAX];
     
419.     char *filename;
     
420.     char event_buf[512];
     
421.     int event_size;
     
422.     int event_pos = 0;
     
423.     struct inotify_event *event;
     
424. 
     
425.     res = read(nfd, event_buf, sizeof(event_buf));
     
426.     if(res< (int)sizeof(*event)){
     
427.         if(errno== EINTR)
     
428.             return 0;
     
429.         fprintf(stderr,"could not get event, %s\n", strerror(errno));
     
430.         return 1;
     
431.     }
     
432.     //printf("got %d bytes of event information\n", res);
     
433. 
     
434.     strcpy(devname, dirname);
     
435.     filename = devname + strlen(devname);
     
436.     *filename++= '/';
     
437. 
     
438.     while(res>= (int)sizeof(*event)){
     
439.         event = (struct inotify_event *)(event_buf+ event_pos);
     
440.         //printf("%d: %08x \"%s\"\n", event->wd, event->mask, event->len? event->name: "");
     
441.         if(event->len){
     
442.             strcpy(filename, event->name);
     
443.             if(event->mask& IN_CREATE){
     
444.                 open_device(devname, print_flags);
     
445.             }
     
446.             else {
     
447.                 close_device(devname, print_flags);
     
448.             }
     
449.         }
     
450.         event_size = sizeof(*event)+ event->len;
     
451.         res -= event_size;
     
452.         event_pos += event_size;
     
453.     }
     
454.     return 0;
     
455. }
     
456. 
     
457. static int scan_dir(const char*dirname, int print_flags)
     
458. {
     
459.     char devname[PATH_MAX];
     
460.     char *filename;
     
461.     DIR *dir;
     
462.     struct dirent *de;
     
463.     dir = opendir(dirname);
     
464.     if(dir== NULL)
     
465.         return -1;
     
466.     strcpy(devname, dirname);
     
467.     filename = devname + strlen(devname);
     
468.     *filename++= '/';
     
469.     while((de= readdir(dir))){
     
470.         if(de->d_name[0]== '.' &&
     
471.            (de->d_name[1]== '\0'||
     
472.             (de->d_name[1]== '.' && de->d_name[2]== '\0')))
     
473.             continue;
     
474.         strcpy(filename, de->d_name);
     
475.         open_device(devname, print_flags);
     
476.     }
     
477.     closedir(dir);
     
478.     return 0;
     
479. }
     
480. 
     
481. static void usage(char *name)
     
482. {
     
483.     fprintf(stderr,"Usage: %s [-t] [-n] [-s switchmask] [-S] [-v [mask]] [-d] [-p] [-i] [-l] [-q] [-c count] [-r] [device]\n", name);
     
484.     fprintf(stderr," -t: show time stamps\n");
     
485.     fprintf(stderr," -n: don't print newlines\n");
     
486.     fprintf(stderr," -s: print switch states for given bits\n");
     
487.     fprintf(stderr," -S: print all switch states\n");
     
488.     fprintf(stderr," -v: verbosity mask (errs=1, dev=2, name=4, info=8, vers=16, pos. events=32, props=64)\n");
     
489.     fprintf(stderr," -d: show HID descriptor, if available\n");
     
490.     fprintf(stderr," -p: show possible events (errs, dev, name, pos. events)\n");
     
491.     fprintf(stderr," -i: show all device info and possible events\n");
     
492.     fprintf(stderr," -l: label event types and names in plain text\n");
     
493.     fprintf(stderr," -q: quiet (clear verbosity mask)\n");
     
494.     fprintf(stderr," -c: print given number of events then exit\n");
     
495.     fprintf(stderr," -r: print rate events are received\n");
     
496. }
     
497. 
     
498. int main(int argc, char*argv[])
     
499. {
     
500.     int c;
     
501.     int i;
     
502.     int res;
     
503.     int get_time = 0;
     
504.     int print_device = 0;
     
505.     char *newline = "\n";
     
506.     uint16_t get_switch = 0;
     
507.     struct input_event event;
     
508.     int print_flags = 0;
     
509.     int print_flags_set = 0;
     
510.     int dont_block = -1;
     
511.     int event_count = 0;
     
512.     int sync_rate = 0;
     
513.     int64_t last_sync_time = 0;
     
514.     const char *device = NULL;
     
515.     const char *device_path = "/dev/input";
     
516. 
     
517.     opterr = 0;
     
518.     do {
     
519.         c = getopt(argc, argv,"tns:Sv::dpilqc:rh");
     
520.         if (c== EOF)
     
521.             break;
     
522.         switch (c){
     
523.         case 't':
     
524.             get_time = 1;
     
525.             break;
     
526.         case 'n':
     
527.             newline = "";
     
528.             break;
     
529.         case 's':
     
530.             get_switch = strtoul(optarg,NULL, 0);
     
531.             if(dont_block== -1)
     
532.                 dont_block = 1;
     
533.             break;
     
534.         case 'S':
     
535.             get_switch = ~0;
     
536.             if(dont_block== -1)
     
537.                 dont_block = 1;
     
538.             break;
     
539.         case 'v':
     
540.             if(optarg)
     
541.                 print_flags |= strtoul(optarg,NULL, 0);
     
542.             else
     
543.                 print_flags |= PRINT_DEVICE| PRINT_DEVICE_NAME | PRINT_DEVICE_INFO | PRINT_VERSION;
     
544.             print_flags_set = 1;
     
545.             break;
     
546.         case 'd':
     
547.             print_flags |= PRINT_HID_DESCRIPTOR;
     
548.             break;
     
549.         case 'p':
     
550.             print_flags |= PRINT_DEVICE_ERRORS| PRINT_DEVICE
     
551.                     | PRINT_DEVICE_NAME | PRINT_POSSIBLE_EVENTS | PRINT_INPUT_PROPS;
     
552.             print_flags_set = 1;
     
553.             if(dont_block== -1)
     
554.                 dont_block = 1;
     
555.             break;
     
556.         case 'i':
     
557.             print_flags |= PRINT_ALL_INFO;
     
558.             print_flags_set = 1;
     
559.             if(dont_block== -1)
     
560.                 dont_block = 1;
     
561.             break;
     
562.         case 'l':
     
563.             print_flags |= PRINT_LABELS;
     
564.             break;
     
565.         case 'q':
     
566.             print_flags_set = 1;
     
567.             break;
     
568.         case 'c':
     
569.             event_count = atoi(optarg);
     
570.             dont_block = 0;
     
571.             break;
     
572.         case 'r':
     
573.             sync_rate = 1;
     
574.             break;
     
575.         case '?':
     
576.             fprintf(stderr,"%s: invalid option -%c\n",
     
577.                 argv[0], optopt);
     
578.         case 'h':
     
579.             usage(argv[0]);
     
580.             exit(1);
     
581.         }
     
582.     } while(1);
     
583.     if(dont_block== -1)
     
584.         dont_block = 0;
     
585. 
     
586.     if (optind+ 1 == argc){
     
587.         device = argv[optind];
     
588.         optind++;
     
589.     }
     
590.     if (optind!= argc){
     
591.         usage(argv[0]);
     
592.         exit(1);
     
593.     }
     
594.     nfds = 1;
     
595.     ufds = calloc(1, sizeof(ufds[0]));
     
596.     ufds[0].fd= inotify_init();
     
597.     ufds[0].events= POLLIN;
     
598.     if(device){
     
599.         if(!print_flags_set)
     
600.             print_flags |= PRINT_DEVICE_ERRORS;
     
601.         res = open_device(device, print_flags);
     
602.         if(res< 0) {
     
603.             return 1;
     
604.         }
     
605.     } else{
     
606.         if(!print_flags_set)
     
607.             print_flags |= PRINT_DEVICE_ERRORS| PRINT_DEVICE | PRINT_DEVICE_NAME;
     
608.         print_device = 1;
     
609.         res = inotify_add_watch(ufds[0].fd, device_path, IN_DELETE | IN_CREATE);
     
610.         if(res< 0) {
     
611.             fprintf(stderr,"could not add watch for %s, %s\n", device_path, strerror(errno));
     
612.             return 1;
     
613.         }
     
614.         res = scan_dir(device_path, print_flags);
     
615.         if(res< 0) {
     
616.             fprintf(stderr,"scan dir failed for %s\n", device_path);
     
617.             return 1;
     
618.         }
     
619.     }
     
620. 
     
621.     if(get_switch){
     
622.         for(i= 1; i < nfds; i++){
     
623.             uint16_t sw;
     
624.             res = ioctl(ufds[i].fd, EVIOCGSW(1),&sw);
     
625.             if(res< 0) {
     
626.                 fprintf(stderr,"could not get switch state, %s\n", strerror(errno));
     
627.                 return 1;
     
628.             }
     
629.             sw &= get_switch;
     
630.             printf("%04x%s", sw, newline);
     
631.         }
     
632.     }
     
633. 
     
634.     if(dont_block)
     
635.         return 0;
     
636. 
     
637.     while(1){
     
638.         //int pollres=
     
639.         poll(ufds, nfds,-1);
     
640.         //printf("poll %d, returned %d\n", nfds, pollres);
     
641.         if(ufds[0].revents& POLLIN) {
     
642.             read_notify(device_path, ufds[0].fd, print_flags);
     
643.         }
     
644.         for(i= 1; i < nfds; i++){
     
645.             if(ufds[i].revents){
     
646.                 if(ufds[i].revents& POLLIN) {
     
647.                     res = read(ufds[i].fd,&event, sizeof(event));
     
648.                     if(res< (int)sizeof(event)){
     
649.                         fprintf(stderr,"could not get event\n");
     
650.                         return 1;
     
651.                     }
     
652.                     if(get_time){
     
653.                         printf("[%8ld.%06ld] ", event.time.tv_sec, event.time.tv_usec);
     
654.                     }
     
655.                     if(print_device)
     
656.                         printf("%s: ", device_names[i]);
     
657.                     print_event(event.type, event.code, event.value, print_flags);
     
658.                     if(sync_rate&& event.type== 0 && event.code== 0){
     
659.                         int64_t now = event.time.tv_sec* 1000000LL + event.time.tv_usec;
     
660.                         if(last_sync_time)
     
661.                             printf(" rate %lld", 1000000LL/ (now- last_sync_time));
     
662.                         last_sync_time = now;
     
663.                     }
     
664.                     printf("%s", newline);
     
665.                     if(event_count&& --event_count == 0)
     
666.                         return 0;
     
667.                 }
     
668.             }
     
669.         }
     
670.     }
     
671. 
     
672.     return 0;
     
673. }

gcc getevent.c getevent.h -I ./ -o getevent