android getevent、sendevent、input keyevent 使用说明

设备节点：

dev 字符设备节点：

shell@android:/dev/input $ ll

crw-rw---- root input 13, 64 2013-11-28 17:23 event0

crw-rw---- root input 13, 65 2013-11-28 17:23 event1

crw-rw---- root input 13, 66 2013-11-28 17:23 event2

crw-rw---- root input 13, 67 2013-11-28 17:23 event3

crw-rw---- root input 13, 68 2013-11-28 17:23 event4

crw-rw---- root input 13, 69 2013-11-28 17:23 event5

crw-rw---- root input 13, 70 2013-11-29 10:31 event6

crw-rw---- root input 13, 63 2013-11-28 17:23 mice

shell@android:/dev/input $

 

sys 设备节点：

shell@android:/sys/class/input $ ll

lrwxrwxrwx root root 2013-11-29 11:08 event0 -> ../../devices/platform/mtk-kpd/input/input0/event0

lrwxrwxrwx root root 2013-11-29 11:08 event1 -> ../../devices/virtual/input/input1/event1

lrwxrwxrwx root root 2013-11-29 11:08 event2 -> ../../devices/virtual/input/input2/event2

lrwxrwxrwx root root 2013-11-29 11:08 event3 -> ../../devices/virtual/input/input3/event3

lrwxrwxrwx root root 2013-11-29 11:08 event4 -> ../../devices/virtual/input/input4/event4

lrwxrwxrwx root root 2013-11-29 11:08 event5 -> ../../devices/virtual/input/input5/event5

lrwxrwxrwx root root 2013-11-29 11:08 event6 -> ../../devices/virtual/input/input6/event6

lrwxrwxrwx root root 2013-11-29 11:08 input0 -> ../../devices/platform/mtk-kpd/input/input0

lrwxrwxrwx root root 2013-11-29 11:08 input1 -> ../../devices/virtual/input/input1

lrwxrwxrwx root root 2013-11-29 11:08 input2 -> ../../devices/virtual/input/input2

lrwxrwxrwx root root 2013-11-28 17:23 input3 -> ../../devices/virtual/input/input3

lrwxrwxrwx root root 2013-11-28 17:23 input4 -> ../../devices/virtual/input/input4

lrwxrwxrwx root root 2013-11-28 17:23 input5 -> ../../devices/virtual/input/input5

lrwxrwxrwx root root 2013-11-29 11:08 input6 -> ../../devices/virtual/input/input6

lrwxrwxrwx root root 2013-11-29 11:08 mice -> ../../devices/virtual/input/mice

shell@android:/sys/class/input $

getevent :

执行adb shell getevent 可以查看到有几个input 设备、input event号及设备名的对应关系等信息：

liaohs@liaohs-11-04:~$ adb shell getevent

add device 1: /dev/input/event6

name: "AVRCP"

add device 2: /dev/input/event0

name: "mtk-kpd"

add device 3: /dev/input/event5

name: "mtk-tpd-kpd"

add device 4: /dev/input/event4

name: "mtk-tpd"

add device 5: /dev/input/event3

name: "LEV_KPD"

add device 6: /dev/input/event2

name: "hwmdata"

add device 7: /dev/input/event1

name: "ACCDET"

根据我测试getevent是有用的，使用方法如下

adb shell getevent /dev/input/event0 

0001 0074 00000001

0000 0000 00000000

0001 0074 00000000

0000 0000 00000000

获取到的event type code value参考/kernel/include/linux/input.h

linux key code : input-event-codes.h

根据我测试sendevent无效，我失败的测试方法如下如下：

adb shell sendevent /dev/input/event0 0001 0072 00000001 

adb shell sendevent /dev/input/event0 0000 0000 00000000 

adb shell sendevent /dev/input/event0 0001 0072 00000000 

adb shell sendevent /dev/input/event0 0000 0000 00000000

 

getevent -l 参数 :

130|shell@android:/ $ getevent -l dev/input/event4 

EV_ABS ABS_MT_TOUCH_MAJOR 00000001           //touch　事件的起始

EV_ABS ABS_MT_POSITION_X 00000233 　　　　 // touch x 座标

EV_ABS ABS_MT_POSITION_Y 000001bb                // touch y 座标

EV_ABS 003c 00000040                                             // touch 面积／压力

EV_ABS 003d 00000040 　　　　　　　　　　　　// touch 面积／压力　　

EV_ABS ABS_MT_TRACKING_ID 00000000 　　　// touch第几个手指　　　

EV_SYN SYN_MT_REPORT 00000000 　　　　　　//touch第几个手指的事件

EV_SYN SYN_REPORT 00000000                             //touch 一次事件的结事同步

EV_ABS ABS_MT_TOUCH_MAJOR 00000001 

EV_ABS ABS_MT_POSITION_X 0000022f 

EV_ABS ABS_MT_POSITION_Y 000001bb 

EV_ABS 003c 00000040 

EV_ABS 003d 00000040 

EV_ABS ABS_MT_TRACKING_ID 00000000 

EV_SYN SYN_MT_REPORT 00000000 

EV_SYN SYN_REPORT 00000000 

EV_ABS ABS_MT_TOUCH_MAJOR 00000001 

EV_ABS ABS_MT_POSITION_X 0000022c 

EV_ABS ABS_MT_POSITION_Y 000001bc 

EV_ABS 003c 00000041 

EV_ABS 003d 00000041 

EV_ABS ABS_MT_TRACKING_ID 00000000 

EV_SYN SYN_MT_REPORT 00000000 

EV_SYN SYN_REPORT 00000000

root@S939:/ # getevent -l dev/input/event0

EV_KEY       KEY_POWER            DOWN               //power key 按下事件 

EV_SYN       SYN_REPORT           00000000            //事件同步　

EV_KEY       KEY_POWER            UP                  

EV_SYN       SYN_REPORT           00000000            

EV_KEY       KEY_VOLUMEDOWN       DOWN                

EV_SYN       SYN_REPORT           00000000            

EV_KEY       KEY_VOLUMEDOWN       UP                  

EV_SYN       SYN_REPORT           00000000

sendevent、 input keyevent 使用：

send event无法使用，可以用input command代替

shell@xx:/ $ whence input

/system/bin/input

shell@xx:/ $ input

Usage: input [<source>] <command> [<arg>...]

The sources are:

      mouse

      keyboard

      joystick

      touchnavigation

      touchpad

      trackball

      stylus

      dpad

      touchscreen

      gamepad

The commands and default sources are:

      text <string> (Default: touchscreen)
输入文本

      keyevent [--longpress] <key code number or name> ... (Default: keyboard)   模拟按键

      tap <x> <y> (Default: touchscreen)
模拟点击

      swipe <x1> <y1> <x2> <y2> [duration(ms)] (Default: touchscreen)   模拟滑动

      press (Default: trackball)

      roll <dx> <dy> (Default: trackball)

模拟按键： input  keyevent 25（模拟按下键值为25的按键）
输入文本： input text ssss（输入文本为ssss）
模拟滑动： input swipe 100 300 700 1000 2000(从坐标为(100,300)到(700,1000)进行滑动，时长为2000ms)
模拟点击： input tap 200 300(模拟点击坐标为(200,300)的点)


[b]input keyevent  xxx: 
[/b]

其中xxx 代表Key code，参考：/frameworks/base/core/java/android/view/KeyEvent.java

下面是input keyevent几个比较常用的用法：

input keyevent 3    // Home

input keyevent 4    // Back

input keyevent 19  //Up

input keyevent 20  //Down

input keyevent 21  //Left

input keyevent 22  //Right

input keyevent 23  //Select/Ok

input keyevent 24  //Volume+

input keyevent 25  // Volume-

input keyevent 82  // Menu 菜单

input keyevent 7 // 数字0

input keyevent 8  // 数字1

input keyevent 26   // Power key

input keyevent 27   // Camera

dev设备接口使用参考纹编程代码：

bootable/recovery/minui/events.c

参考：

http://blog.csdn.net/kickxxx/article/details/7482392

http://blog.csdn.net/learnrose/article/details/6236890

http://blog.csdn.net/lichaoandy/article/details/6565893