明远智睿MY-IMX6-EK200 Linux-4.1.15测试手册v2.0（2）

【接上一章节明远智睿MY-IMX6-EK200 Linux-4.1.15测试手册v2.0（1）】

 

2.10  GPIO-KEY测试

　　【测试说明】：使用 evtest 进行测试
　　【接口标识】：KEY3, KEY2, KEY1
　　【系统接口】：/dev/input/eventX
测试操作
　　运行 evtest 准备测试

=====> 输入指令:

evtest

 

=====> 输出信息：

No device specified, trying to scan all of /dev/input/event*

Available devices:

/dev/input/event0:  WM8962 Beep Generator

/dev/input/event1:  gpio-keys

Select the device event number [0-1]:

　　选择 gpio-keys 所对应的序号

=====> 输入指令:

1

 

=====> 输出信息：

Input driver version is 1.0.1

Input device ID: bus 0x19 vendor 0x1 product 0x1 version 0x100

Input device name: "gpio-keys"

Supported events:

  Event type 0 (EV_SYN)

  Event type 1 (EV_KEY)

    Event code 114 (KEY_VOLUMEDOWN)

    Event code 115 (KEY_VOLUMEUP)

    Event code 116 (KEY_POWER)

Properties:

Testing ... (interrupt to exit)

　　按动开发板上的按键

Event: time 1537921332.815219, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 1

Event: time 1537921332.815219, -------------- SYN_REPORT ------------

Event: time 1537921332.985211, type 1 (EV_KEY), code 114 (KEY_VOLUMEDOWN), value 0

Event: time 1537921332.985211, -------------- SYN_REPORT ------------

Event: time 1537921335.355204, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 1

Event: time 1537921335.355204, -------------- SYN_REPORT ------------

Event: time 1537921335.535203, type 1 (EV_KEY), code 115 (KEY_VOLUMEUP), value 0