这边收到了很多ai硬件设备，需要做压力测试、稳定性测试。苦于非安卓系统，不能借助input tap等方式进行ui自动化，也没找到合适的工具。上网查了资料加上自己多次测试排了一些坑，基本可以通过捕捉event实现简单UI自动化。
1、关于linux设备
/dev/input目录下的事件都是在驱动中调用input_register_device(struct input_dev *dev)产生的。
/dev/input # ls -al
crw-rw---- 1 root input 13, 64 Jun 1 14:00 event0
crw-rw---- 1 root input 13, 65 Jun 1 14:00 event1
crw-rw---- 1 root input 13, 66 Jun 1 14:00 event2
crw-rw---- 1 root input 13, 67 Jun 1 14:00 event3
crw-rw---- 1 root input 13, 68 Jun 1 14:00 event4
每个event将上报指定的事件:
比如：
event0 ---> 触摸屏事件
event1 ---> 电源键事件
event2 ---> 音量键事件
event3 ---> ...
通常触摸屏事件就会上报坐标轴事件，电源键比如按下是 1，松开是 0。而与event对应的相关设备信息位于/proc/bus/input/devices。可以直接cat 查看devces信息。小米手机为例：
jason:/ $ cat /proc/bus/input/devices
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="qpnp_pon"
P: Phys=qpnp_pon/input0
S: Sysfs=/devices/virtual/input/input0
U: Uniq=
H: Handlers=event0 cpufreq
B: PROP=0
B: EV=3
B: KEY=14000000000000 0
I: Bus=0000 Vendor=0000 Product=0003 Version=2065
N: Name="synaptics_dsx"
P: Phys=synaptics_dsx/touch_input
S: Sysfs=/devices/soc/c178000.i2c/i2c-4/4-0020/input/input1
U: Uniq=
H: Handlers=mdss_fb kgsl mouse0 event1 cpufreq
B: PROP=2
B: EV=b
B: KEY=420 0 0 40008800 4000000000 0
B: ABS=263800000000003
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="hbtp_vm"
P: Phys=
S: Sysfs=/devices/virtual/input/input2
U: Uniq=
H: Handlers=mouse1 event2 cpufreq
B: PROP=2
B: EV=7
B: KEY=30000 0 0 0 0
B: REL=3
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="uinput-goodix"
P: Phys=
S: Sysfs=/devices/virtual/input/input3
U: Uniq=
H: Handlers=event3 cpufreq
B: PROP=0
B: EV=3
B: KEY=3100000 40000800 1c16c000000000 0
I: Bus=0019 Vendor=0001 Product=0001 Version=0100
N: Name="gpio-keys"
P: Phys=gpio-keys/input0
S: Sysfs=/devices/soc/soc:gpio_keys/input/input4
U: Uniq=
H: Handlers=event4 cpufreq
B: PROP=0
B: EV=23
B: KEY=8000000000000 0
B: SW=1
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="sdm660-snd-card Headset Jack"
P: Phys=ALSA
S: Sysfs=/devices/soc/soc:sound/sound/card0/input5
U: Uniq=
H: Handlers=event5
B: PROP=0
B: EV=21
B: SW=780d4
I: Bus=0000 Vendor=0000 Product=0000 Version=0000
N: Name="sdm660-snd-card Button Jack"
P: Phys=ALSA
S: Sysfs=/devices/soc/soc:sound/sound/card0/input6
U: Uniq=
H: Handlers=event6 cpufreq
B: PROP=40
B: EV=3
B: KEY=3e 400000000 0 0 0
2、捕捉消息
首先要会捕捉触摸屏以及所需要控制的按键事件，安卓系统比较简单，用自带的getevent就可以了。这边用小米手机为例：
jason:/dev/input $ getevent -l
add device 1: /dev/input/event6
name: "sdm660-snd-card Button Jack"
add device 2: /dev/input/event5
name: "sdm660-snd-card Headset Jack"
could not get driver version for /dev/input/mouse1, Not a typewriter
add device 3: /dev/input/event2
name: "hbtp_vm"
add device 4: /dev/input/event0
name: "qpnp_pon"
could not get driver version for /dev/input/mouse0, Not a typewriter
add device 5: /dev/input/event4
name: "gpio-keys"
could not get driver version for /dev/input/mice, Not a typewriter
add device 6: /dev/input/event1
name: "synaptics_dsx"
add device 7: /dev/input/event3
name: "uinput-goodix"
/dev/input/event1: EV_ABS ABS_MT_TRACKING_ID 00000018
/dev/input/event1: EV_KEY BTN_TOUCH DOWN
/dev/input/event1: EV_KEY BTN_TOOL_FINGER DOWN
/dev/input/event1: EV_ABS ABS_MT_POSITION_X 000000f1
/dev/input/event1: EV_ABS ABS_MT_POSITION_Y 000002d3
/dev/input/event1: EV_ABS ABS_MT_TOUCH_MAJOR 00000004
/dev/input/event1: EV_ABS ABS_MT_TOUCH_MINOR 00000004
/dev/input/event1: EV_SYN SYN_REPORT 00000000
/dev/input/event1: EV_ABS ABS_MT_TOUCH_MAJOR 00000005
/dev/input/event1: EV_ABS ABS_MT_TOUCH_MINOR 00000003
/dev/input/event1: EV_SYN SYN_REPORT 00000000
/dev/input/event1: EV_ABS ABS_MT_TOUCH_MINOR 00000004
/dev/input/event1: EV_SYN SYN_REPORT 00000000
/dev/input/event1: EV_ABS ABS_MT_TOUCH_MINOR 00000005
/dev/input/event1: EV_SYN SYN_REPORT 00000000
/dev/input/event1: EV_ABS ABS_MT_POSITION_X 000000dd
/dev/input/event1: EV_ABS ABS_MT_POSITION_Y 000002c9
我这边使用的触摸屏事件，打印的event1信息，可以理解为event1上报触摸屏事件。同样，使用电源键、音量键、home键也会用不同的event信息打印：
/dev/input/event4: EV_KEY KEY_VOLUMEUP DOWN
/dev/input/event4: EV_SYN SYN_REPORT 00000000
/dev/input/event4: EV_KEY KEY_VOLUMEUP UP
/dev/input/event4: EV_SYN SYN_REPORT 00000000
/dev/input/event0: EV_KEY KEY_VOLUMEDOWN DOWN
/dev/input/event0: EV_SYN SYN_REPORT 00000000
/dev/input/event0: EV_KEY KEY_VOLUMEDOWN UP
/dev/input/event0: EV_SYN SYN_REPORT 00000000
/dev/input/event3: EV_KEY KEY_HOME DOWN
/dev/input/event3: EV_SYN SYN_REPORT 00000000
/dev/input/event3: EV_KEY KEY_HOME UP
/dev/input/event3: EV_SYN SYN_REPORT 00000000
这里对应event0、event3、event4
但是在绝大多数linux是没有的！！！（有时候BSP对带，which一下就知道了）
如果没有的话只能编译一个放进去，这里推荐evtest
/*
* $Id: evtest.c,v 1.23 2005/02/06 13:51:42 vojtech Exp $
*
* Copyright (c) 1999-2000 Vojtech Pavlik
*
* Event device test program
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
*/
#include <stdint.h>
#include <linux/input.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdio.h>
#ifndef EV_SYN
#define EV_SYN 0
#endif
char *events[EV_MAX + 1] = {
[0 ... EV_MAX] = NULL,
[EV_SYN] = "Sync", [EV_KEY] = "Key",
[EV_REL] = "Relative", [EV_ABS] = "Absolute",
[EV_MSC] = "Misc", [EV_LED] = "LED",
[EV_SND] = "Sound", [EV_REP] = "Repeat",
[EV_FF] = "ForceFeedback", [EV_PWR] = "Power",
[EV_FF_STATUS] = "ForceFeedbackStatus",
};
char *keys[KEY_MAX + 1] = {
[0 ... KEY_MAX] = NULL,
[KEY_RESERVED] = "Reserved", [KEY_ESC] = "Esc",
[KEY_1] = "1", [KEY_2] = "2",
[KEY_3] = "3", [KEY_4] = "4",
[KEY_5] = "5", [KEY_6] = "6",
[KEY_7] = "7", [KEY_8] = "8",
[KEY_9] = "9", [KEY_0] = "0",
[KEY_MINUS] = "Minus", [KEY_EQUAL] = "Equal",
[KEY_BACKSPACE] = "Backspace", [KEY_TAB] = "Tab",
[KEY_Q] = "Q", [KEY_W] = "W",
[KEY_E] = "E", [KEY_R] = "R",
[KEY_T] = "T", [KEY_Y] = "Y",
[KEY_U] = "U", [KEY_I] = "I",
[KEY_O] = "O", [KEY_P] = "P",
[KEY_LEFTBRACE] = "LeftBrace", [KEY_RIGHTBRACE] = "RightBrace",
[KEY_ENTER] = "Enter", [KEY_LEFTCTRL] = "LeftControl",
[KEY_A] = "A", [KEY_S] = "S",
[KEY_D] = "D", [KEY_F] = "F",
[KEY_G] = "G", [KEY_H] = "H",
[KEY_J] = "J", [KEY_K] = "K",
[KEY_L] = "L", [KEY_SEMICOLON] = "Semicolon",
[KEY_APOSTROPHE] = "Apostrophe", [KEY_GRAVE] = "Grave",
[KEY_LEFTSHIFT] = "LeftShift", [KEY_BACKSLASH] = "BackSlash",
[KEY_Z] = "Z", [KEY_X] = "X",
[KEY_C] = "C", [KEY_V] = "V",
[KEY_B] = "B", [KEY_N] = "N",
[KEY_M] = "M", [KEY_COMMA] = "Comma",
[KEY_DOT] = "Dot", [KEY_SLASH] = "Slash",
[KEY_RIGHTSHIFT] = "RightShift", [KEY_KPASTERISK] = "KPAsterisk",
[KEY_LEFTALT] = "LeftAlt", [KEY_SPACE] = "Space",
[KEY_CAPSLOCK] = "CapsLock", [KEY_F1] = "F1",
[KEY_F2] = "F2", [KEY_F3] = "F3",
[KEY_F4] = "F4", [KEY_F5] = "F5",
[KEY_F6] = "F6", [KEY_F7] = "F7",
[KEY_F8] = "F8", [KEY_F9] = "F9",
[KEY_F10] = "F10", [KEY_NUMLOCK] = "NumLock",
[KEY_SCROLLLOCK] = "ScrollLock", [KEY_KP7] = "KP7",
[KEY_KP8] = "KP8", [KEY_KP9] = "KP9",
[KEY_KPMINUS] = "KPMinus", [KEY_KP4] = "KP4",
[KEY_KP5] = "KP5", [KEY_KP6] = "KP6",
[KEY_KPPLUS] = "KPPlus", [KEY_KP1] = "KP1",
[KEY_KP2] = "KP2", [KEY_KP3] = "KP3",
[KEY_KP0] = "KP0", [KEY_KPDOT] = "KPDot",
[KEY_ZENKAKUHANKAKU] = "Zenkaku/Hankaku", [KEY_102ND] = "102nd",
[KEY_F11] = "F11", [KEY_F12] = "F12",
[KEY_RO] = "RO", [KEY_KATAKANA] = "Katakana",
[KEY_HIRAGANA] = "HIRAGANA", [KEY_HENKAN] = "Henkan",
[KEY_KATAKANAHIRAGANA] = "Katakana/Hiragana", [KEY_MUHENKAN] = "Muhenkan",
[KEY_KPJPCOMMA] = "KPJpComma", [KEY_KPENTER] = "KPEnter",
[KEY_RIGHTCTRL] = "RightCtrl", [KEY_KPSLASH] = "KPSlash",
[KEY_SYSRQ] = "SysRq", [KEY_RIGHTALT] = "RightAlt",
[KEY_LINEFEED] = "LineFeed", [KEY_HOME] = "Home",
[KEY_UP] = "Up", [KEY_PAGEUP] = "PageUp",
[KEY_LEFT] = "Left", [KEY_RIGHT] = "Right",
[KEY_END] = "End", [KEY_DOWN] = "Down",
[KEY_PAGEDOWN] = "PageDown", [KEY_INSERT] = "Insert",
[KEY_DELETE] = "Delete", [KEY_MACRO] = "Macro",
[KEY_MUTE] = "Mute", [KEY_VOLUMEDOWN] = "VolumeDown",
[KEY_VOLUMEUP] = "VolumeUp", [KEY_POWER] = "Power",
[KEY_KPEQUAL] = "KPEqual", [KEY_KPPLUSMINUS] = "KPPlusMinus",
[KEY_PAUSE] = "Pause", [KEY_KPCOMMA] = "KPComma",
[KEY_HANGUEL] = "Hanguel", [KEY_HANJA] = "Hanja",
[KEY_YEN] = "Yen", [KEY_LEFTMETA] = "LeftMeta",
[KEY_RIGHTMETA] = "RightMeta", [KEY_COMPOSE] = "Compose",
[KEY_STOP] = "Stop", [KEY_AGAIN] = "Again",
[KEY_PROPS] = "Props", [KEY_UNDO] = "Undo",
[KEY_FRONT] = "Front", [KEY_COPY] = "Copy",
[KEY_OPEN] = "Open", [KEY_PASTE] = "Paste",
[KEY_FIND] = "Find", [KEY_CUT] = "Cut",
[KEY_HELP] = "Help", [KEY_MENU] = "Menu",
[KEY_CALC] = "Calc", [KEY_SETUP] = "Setup",
[KEY_SLEEP] = "Sleep", [KEY_WAKEUP] = "WakeUp",
[KEY_FILE] = "File", [KEY_SENDFILE] = "SendFile",
[KEY_DELETEFILE] = "DeleteFile", [KEY_XFER] = "X-fer",
[KEY_PROG1] = "Prog1", [KEY_PROG2] = "Prog2",
[KEY_WWW] = "WWW", [KEY_MSDOS] = "MSDOS",
[KEY_COFFEE] = "Coffee", [KEY_DIRECTION] = "Direction",
[KEY_CYCLEWINDOWS] = "CycleWindows", [KEY_MAIL] = "Mail",
[KEY_BOOKMARKS] = "Bookmarks", [KEY_COMPUTER] = "Computer",
[KEY_BACK] = "Back", [KEY_FORWARD] = "Forward",
[KEY_CLOSECD] = "CloseCD", [KEY_EJECTCD] = "EjectCD",
[KEY_EJECTCLOSECD] = "EjectCloseCD", [KEY_NEXTSONG] = "NextSong",
[KEY_PLAYPAUSE] = "PlayPause", [KEY_PREVIOUSSONG] = "PreviousSong",
[KEY_STOPCD] = "StopCD", [KEY_RECORD] = "Record",
[KEY_REWIND] = "Rewind", [KEY_PHONE] = "Phone",
[KEY_ISO] = "ISOKey", [KEY_CONFIG] = "Config",
[KEY_HOMEPAGE] = "HomePage", [KEY_REFRESH] = "Refresh",
[KEY_EXIT] = "Exit", [KEY_MOVE] = "Move",
[KEY_EDIT] = "Edit", [KEY_SCROLLUP] = "ScrollUp",
[KEY_SCROLLDOWN] = "ScrollDown", [KEY_KPLEFTPAREN] = "KPLeftParenthesis",
[KEY_KPRIGHTPAREN] = "KPRightParenthesis", [KEY_F13] = "F13",
[KEY_F14] = "F14", [KEY_F15] = "F15",
[KEY_F16] = "F16", [KEY_F17] = "F17",
[KEY_F18] = "F18", [KEY_F19] = "F19",
[KEY_F20] = "F20", [KEY_F21] = "F21",
[KEY_F22] = "F22", [KEY_F23] = "F23",
[KEY_F24] = "F24", [KEY_PLAYCD] = "PlayCD",
[KEY_PAUSECD] = "PauseCD", [KEY_PROG3] = "Prog3",
[KEY_PROG4] = "Prog4", [KEY_SUSPEND] = "Suspend",
[KEY_CLOSE] = "Close", [KEY_PLAY] = "Play",
[KEY_FASTFORWARD] = "Fast Forward", [KEY_BASSBOOST] = "Bass Boost",
[KEY_PRINT] = "Print", [KEY_HP] = "HP",
[KEY_CAMERA] = "Camera", [KEY_SOUND] = "Sound",
[KEY_QUESTION] = "Question", [KEY_EMAIL] = "Email",
[KEY_CHAT] = "Chat", [KEY_SEARCH] = "Search",
[KEY_CONNECT] = "Connect", [KEY_FINANCE] = "Finance",
[KEY_SPORT] = "Sport", [KEY_SHOP] = "Shop",
[KEY_ALTERASE] = "Alternate Erase", [KEY_CANCEL] = "Cancel",
[KEY_BRIGHTNESSDOWN] = "Brightness down", [KEY_BRIGHTNESSUP] = "Brightness up",
[KEY_MEDIA] = "Media", [KEY_UNKNOWN] = "Unknown",
[BTN_0] = "Btn0", [BTN_1] = "Btn1",
[BTN_2] = "Btn2", [BTN_3] = "Btn3",
[BTN_4] = "Btn4", [BTN_5] = "Btn5",
[BTN_6] = "Btn6", [BTN_7] = "Btn7",
[BTN_8] = "Btn8", [BTN_9] = "Btn9",
[BTN_LEFT] = "LeftBtn", [BTN_RIGHT] = "RightBtn",
[BTN_MIDDLE] = "MiddleBtn", [BTN_SIDE] = "SideBtn",
[BTN_EXTRA] = "ExtraBtn", [BTN_FORWARD] = "ForwardBtn",
[BTN_BACK] = "BackBtn", [BTN_TASK] = "TaskBtn",
[BTN_TRIGGER] = "Trigger", [BTN_THUMB] = "ThumbBtn",
[BTN_THUMB2] = "ThumbBtn2", [BTN_TOP] = "TopBtn",
[BTN_TOP2] = "TopBtn2", [BTN_PINKIE] = "PinkieBtn",
[BTN_BASE] = "BaseBtn", [BTN_BASE2] = "BaseBtn2",
[BTN_BASE3] = "BaseBtn3", [BTN_BASE4] = "BaseBtn4",
[BTN_BASE5] = "BaseBtn5", [BTN_BASE6] = "BaseBtn6",
[BTN_DEAD] = "BtnDead", [BTN_A] = "BtnA",
[BTN_B] = "BtnB", [BTN_C] = "BtnC",
[BTN_X] = "BtnX", [BTN_Y] = "BtnY",
[BTN_Z] = "BtnZ", [BTN_TL] = "BtnTL",
[BTN_TR] = "BtnTR", [BTN_TL2] = "BtnTL2",
[BTN_TR2] = "BtnTR2", [BTN_SELECT] = "BtnSelect",
[BTN_START] = "BtnStart", [BTN_MODE] = "BtnMode",
[BTN_THUMBL] = "BtnThumbL", [BTN_THUMBR] = "BtnThumbR",
[BTN_TOOL_PEN] = "ToolPen", [BTN_TOOL_RUBBER] = "ToolRubber",
[BTN_TOOL_BRUSH] = "ToolBrush", [BTN_TOOL_PENCIL] = "ToolPencil",
[BTN_TOOL_AIRBRUSH] = "ToolAirbrush", [BTN_TOOL_FINGER] = "ToolFinger",
[BTN_TOOL_MOUSE] = "ToolMouse", [BTN_TOOL_LENS] = "ToolLens",
[BTN_TOUCH] = "Touch", [BTN_STYLUS] = "Stylus",
[BTN_STYLUS2] = "Stylus2", [BTN_TOOL_DOUBLETAP] = "Tool Doubletap",
[BTN_TOOL_TRIPLETAP] = "Tool Tripletap", [BTN_GEAR_DOWN] = "WheelBtn",
[BTN_GEAR_UP] = "Gear up", [KEY_OK] = "Ok",
[KEY_SELECT] = "Select", [KEY_GOTO] = "Goto",
[KEY_CLEAR] = "Clear", [KEY_POWER2] = "Power2",
[KEY_OPTION] = "Option", [KEY_INFO] = "Info",
[KEY_TIME] = "Time", [KEY_VENDOR] = "Vendor",
[KEY_ARCHIVE] = "Archive", [KEY_PROGRAM] = "Program",
[KEY_CHANNEL] = "Channel", [KEY_FAVORITES] = "Favorites",
[KEY_EPG] = "EPG", [KEY_PVR] = "PVR",
[KEY_MHP] = "MHP", [KEY_LANGUAGE] = "Language",
[KEY_TITLE] = "Title", [KEY_SUBTITLE] = "Subtitle",
[KEY_ANGLE] = "Angle", [KEY_ZOOM] = "Zoom",
[KEY_MODE] = "Mode", [KEY_KEYBOARD] = "Keyboard",
[KEY_SCREEN] = "Screen", [KEY_PC] = "PC",
[KEY_TV] = "TV", [KEY_TV2] = "TV2",
[KEY_VCR] = "VCR", [KEY_VCR2] = "VCR2",
[KEY_SAT] = "Sat", [KEY_SAT2] = "Sat2",
[KEY_CD] = "CD", [KEY_TAPE] = "Tape",
[KEY_RADIO] = "Radio", [KEY_TUNER] = "Tuner",
[KEY_PLAYER] = "Player", [KEY_TEXT] = "Text",
[KEY_DVD] = "DVD", [KEY_AUX] = "Aux",
[KEY_MP3] = "MP3", [KEY_AUDIO] = "Audio",
[KEY_VIDEO] = "Video", [KEY_DIRECTORY] = "Directory",
[KEY_LIST] = "List", [KEY_MEMO] = "Memo",
[KEY_CALENDAR] = "Calendar", [KEY_RED] = "Red",
[KEY_GREEN] = "Green", [KEY_YELLOW] = "Yellow",
[KEY_BLUE] = "Blue", [KEY_CHANNELUP] = "ChannelUp",
[KEY_CHANNELDOWN] = "ChannelDown", [KEY_FIRST] = "First",
[KEY_LAST] = "Last", [KEY_AB] = "AB",
[KEY_NEXT] = "Next", [KEY_RESTART] = "Restart",
[KEY_SLOW] = "Slow", [KEY_SHUFFLE] = "Shuffle",
[KEY_BREAK] = "Break", [KEY_PREVIOUS] = "Previous",
[KEY_DIGITS] = "Digits", [KEY_TEEN] = "TEEN",
[KEY_TWEN] = "TWEN", [KEY_DEL_EOL] = "Delete EOL",
[KEY_DEL_EOS] = "Delete EOS", [KEY_INS_LINE] = "Insert line",
[KEY_DEL_LINE] = "Delete line",
};
char *absval[5] = { "Value", "Min ", "Max ", "Fuzz ", "Flat " };
char *relatives[REL_MAX + 1] = {
[0 ... REL_MAX] = NULL,
[REL_X] = "X", [REL_Y] = "Y",
[REL_Z] = "Z", [REL_HWHEEL] = "HWheel",
[REL_DIAL] = "Dial", [REL_WHEEL] = "Wheel",
[REL_MISC] = "Misc",
};
char *absolutes[ABS_MAX + 1] = {
[0 ... ABS_MAX] = NULL,
[ABS_X] = "X", [ABS_Y] = "Y",
[ABS_Z] = "Z", [ABS_RX] = "Rx",
[ABS_RY] = "Ry", [ABS_RZ] = "Rz",
[ABS_THROTTLE] = "Throttle", [ABS_RUDDER] = "Rudder",
[ABS_WHEEL] = "Wheel", [ABS_GAS] = "Gas",
[ABS_BRAKE] = "Brake", [ABS_HAT0X] = "Hat0X",
[ABS_HAT0Y] = "Hat0Y", [ABS_HAT1X] = "Hat1X",
[ABS_HAT1Y] = "Hat1Y", [ABS_HAT2X] = "Hat2X",
[ABS_HAT2Y] = "Hat2Y", [ABS_HAT3X] = "Hat3X",
[ABS_HAT3Y] = "Hat 3Y", [ABS_PRESSURE] = "Pressure",
[ABS_DISTANCE] = "Distance", [ABS_TILT_X] = "XTilt",
[ABS_TILT_Y] = "YTilt", [ABS_TOOL_WIDTH] = "Tool Width",
[ABS_VOLUME] = "Volume", [ABS_MISC] = "Misc",
};
char *misc[MSC_MAX + 1] = {
[ 0 ... MSC_MAX] = NULL,
[MSC_SERIAL] = "Serial", [MSC_PULSELED] = "Pulseled",
[MSC_GESTURE] = "Gesture", [MSC_RAW] = "RawData",
[MSC_SCAN] = "ScanCode",
};
char *leds[LED_MAX + 1] = {
[0 ... LED_MAX] = NULL,
[LED_NUML] = "NumLock", [LED_CAPSL] = "CapsLock",
[LED_SCROLLL] = "ScrollLock", [LED_COMPOSE] = "Compose",
[LED_KANA] = "Kana", [LED_SLEEP] = "Sleep",
[LED_SUSPEND] = "Suspend", [LED_MUTE] = "Mute",
[LED_MISC] = "Misc",
};
char *repeats[REP_MAX + 1] = {
[0 ... REP_MAX] = NULL,
[REP_DELAY] = "Delay", [REP_PERIOD] = "Period"
};
char *sounds[SND_MAX + 1] = {
[0 ... SND_MAX] = NULL,
[SND_CLICK] = "Click", [SND_BELL] = "Bell",
[SND_TONE] = "Tone"
};
char **names[EV_MAX + 1] = {
[0 ... EV_MAX] = NULL,
[EV_SYN] = events, [EV_KEY] = keys,
[EV_REL] = relatives, [EV_ABS] = absolutes,
[EV_MSC] = misc, [EV_LED] = leds,
[EV_SND] = sounds, [EV_REP] = repeats,
};
#define BITS_PER_LONG (sizeof(long) * 8)
#define NBITS(x) ((((x)-1)/BITS_PER_LONG)+1)
#define OFF(x) ((x)%BITS_PER_LONG)
#define BIT(x) (1UL<<OFF(x))
#define LONG(x) ((x)/BITS_PER_LONG)
#define test_bit(bit, array) ((array[LONG(bit)] >> OFF(bit)) & 1)
int main (int argc, char **argv)
{
int fd, rd, i, j, k;
struct input_event ev[64];
int version;
unsigned short id[4];
unsigned long bit[EV_MAX][NBITS(KEY_MAX)];
char name[256] = "Unknown";
int abs[5];
if (argc < 2) {
printf("Usage: evtest /dev/input/eventX\n");
printf("Where X = input device number\n");
return 1;
}
if ((fd = open(argv[argc - 1], O_RDONLY)) < 0) {
perror("evtest");
return 1;
}
if (ioctl(fd, EVIOCGVERSION, &version)) {
perror("evtest: can't get version");
return 1;
}
printf("Input driver version is %d.%d.%d\n",
version >> 16, (version >> 8) & 0xff, version & 0xff);
ioctl(fd, EVIOCGID, id);
printf("Input device ID: bus 0x%x vendor 0x%x product 0x%x version 0x%x\n",
id[ID_BUS], id[ID_VENDOR], id[ID_PRODUCT], id[ID_VERSION]);
ioctl(fd, EVIOCGNAME(sizeof(name)), name);
printf("Input device name: \"%s\"\n", name);
memset(bit, 0, sizeof(bit));
ioctl(fd, EVIOCGBIT(0, EV_MAX), bit[0]);
printf("Supported events:\n");
for (i = 0; i < EV_MAX; i++)
if (test_bit(i, bit[0])) {
printf(" Event type %d (%s)\n", i, events[i] ? events[i] : "?");
if (!i) continue;
ioctl(fd, EVIOCGBIT(i, KEY_MAX), bit[i]);
for (j = 0; j < KEY_MAX; j++)
if (test_bit(j, bit[i])) {
printf(" Event code %d (%s)\n", j, names[i] ? (names[i][j] ? names[i][j] : "?") : "?");
if (i == EV_ABS) {
ioctl(fd, EVIOCGABS(j), abs);
for (k = 0; k < 5; k++)
if ((k < 3) || abs[k])
printf(" %s %6d\n", absval[k], abs[k]);
}
}
}
printf("Testing ... (interrupt to exit)\n");
while (1) {
rd = read(fd, ev, sizeof(struct input_event) * 64);
if (rd < (int) sizeof(struct input_event)) {
printf("yyy\n");
perror("\nevtest: error reading");
return 1;
}
for (i = 0; i < rd / sizeof(struct input_event); i++)
if (ev[i].type == EV_SYN) {
printf("Event: time %ld.%06ld, -------------- %s ------------\n",
ev[i].time.tv_sec, ev[i].time.tv_usec, ev[i].code ? "Config Sync" : "Report Sync" );
} else if (ev[i].type == EV_MSC && (ev[i].code == MSC_RAW || ev[i].code == MSC_SCAN)) {
printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %02x\n",
ev[i].time.tv_sec, ev[i].time.tv_usec, ev[i].type,
events[ev[i].type] ? events[ev[i].type] : "?",
ev[i].code,
names[ev[i].type] ? (names[ev[i].type][ev[i].code] ? names[ev[i].type][ev[i].code] : "?") : "?",
ev[i].value);
} else {
printf("Event: time %ld.%06ld, type %d (%s), code %d (%s), value %d\n",
ev[i].time.tv_sec, ev[i].time.tv_usec, ev[i].type,
events[ev[i].type] ? events[ev[i].type] : "?",
ev[i].code,
names[ev[i].type] ? (names[ev[i].type][ev[i].code] ? names[ev[i].type][ev[i].code] : "?") : "?",
ev[i].value);
}
}
}
编译方法:
(base) ➜ evtest vi Evtest.c
(base) ➜ evtest chmod +x Evtest.c
(base) ➜ evtest gcc Evtest.c -o evtest
注：arm设备需要使用特定的交叉编译工具，否则可能无法执行；
3、使用evtest捕获
方法：evtest /dev/input/event
/ # evtest /dev/input/event0
Input driver version is 1.0.1
Input device ID: bus 0x18 vendor 0x0 product 0x0 version 0x0
Input device name: "st16xx"
Supported events:
Event type 0 (EV_SYN)
Event type 1 (EV_KEY)
Event code 142 (KEY_SLEEP)
Event code 143 (KEY_WAKEUP)
Event code 330 (BTN_TOUCH)
Event type 3 (EV_ABS)
Event code 47 (ABS_MT_SLOT)
Value 0
Min 0
Max 1
Event code 53 (ABS_MT_POSITION_X)
Value 0
Min 0
Max 320
Event code 54 (ABS_MT_POSITION_Y)
Value 0
Min 0
Max 320
Event code 57 (ABS_MT_TRACKING_ID)
Value 0
Min 0
Max 65535
Properties:
Property type 1 (INPUT_PROP_DIRECT)
Testing ... (interrupt to exit)
Event: time 1591000623.654802, type 3 (EV_ABS), code 57 (ABS_MT_TRACKING_ID), value 39
Event: time 1591000623.654802, type 1 (EV_KEY), code 330 (BTN_TOUCH), value 1
Event: time 1591000623.654802, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 72
Event: time 1591000623.654802, type 3 (EV_ABS), code 54 (ABS_MT_POSITION_Y), value 6
Event: time 1591000623.654802, -------------- SYN_REPORT ------------
Event: time 1591000623.671811, type 3 (EV_ABS), code 53 (ABS_MT_POSITION_X), value 73
4、TouchScreen实现点触摸屏
通过evtest.c可以查看设备事件消息，通过TouchScreen.c可以实现点触摸屏某个坐标
[参考文档]（https://download.csdn.net/download/asd2479745295/10712830）
编译文件push到设备。./touch xxx yyy
这边在使用时懒得充值，没找到合适的免费资源，找到了另一种解决方法。
5、使用dd+cat 指令实现
(https://www.jianshu.com/p/6b5a172e064a)
可以参考之前一篇模拟快速点击的方法；
捕捉：
使用dd指令
sdcard # dd if=/dev/input/event0 of=./event0
^C
sdcard #
模拟：
1、反向使用
dd if=/sdcard/event0 of=/dev/input/event0
2、可以使用追加
cat ./event0 >> dev/input/event0
此方法可以模拟点击、滑屏、快速点击，各种实体按键短按、长按、快速点击等。暂时没有找到触摸屏长按的方法，原因是 无法控制长按的时间（追加的速度过快）,但是可以通过脚本循环实现。
/mnt/sdcard # cat test.sh
while((true));do
cat ./event0 >> /dev/input/event0
done
/mnt/sdcard #
一个简单的循环，测试可以实现长按，但是不好控制时间，有一个思路是获取获取linux系统时间，在循环体中，true修改成时间条件但是可能打断长按事件。
还有一种可行性高，就是单独做成一个脚本供调用，另一个主脚本控制时间，到时间后kill进程来控制。方法很多，因为工作中没有用到这一项就没测试了。
5、脚本测试case示例
function test_case_04()
{
i_04=1
while(( $i_04<=50 ))
do
echo "Loop "$i_04
cat Events/wiki/event1_01 >> /dev/input/event1
sleep 10
cat Events/wiki/event1_02 >> /dev/input/event1
sleep 10
((i_04++))
echo ""
done
}
6、遇到的坑
1、ubuntu下编译解决。
(base) ➜ evtest gcc Evtest.c -o evtest
Evtest.c:31:10: fatal error: 'linux/input.h' file not found
#include <linux/input.h>
^~~~~~~~~~~~~~~
1 error generated.
2、捕捉的evest为空
数据量太少，dd的版本较低。更新busybox或者dd版本
3、while((1))报错
设备没有bash，只有sh，修改为while((true))可以解释通过。
