• I.MX6 linux eGalaxTouch 自动获取设备节点


                           I.MX6 linux eGalaxTouch 自动获取设备节点
    
    
                            \\\\\\\-*- 目录 -*-/////////////
                            |  一. 需求:
                            |  二. /proc/bus/input/devices 内容:
                            |  三. 解决方法:
                            |  四. 实际应用:
                            --------------------------------------
    
    一. 需求:
        获取eGalaxTouch的输入设备节点
    
    二. /proc/bus/input/devices 内容:
        root@freescale /proc/bus/input$ cat /proc/bus/input/devices 
        I: Bus=0019 Vendor=0001 Product=0001 Version=0100
        N: Name="gpio-keys"
        P: Phys=gpio-keys/input0
        S: Sysfs=/devices/platform/gpio-keys/input/input0
        U: Uniq=
        H: Handlers=kbd event0 
        B: PROP=0
        B: EV=3
        B: KEY=100000 0 0 0
        
        I: Bus=0003 Vendor=0eef Product=7201 Version=0210
        N: Name="eGalax Inc. eGalaxTouch EXC7200-0031v1000"
        P: Phys=usb-fsl-ehci.1-1.3/input0
        S: Sysfs=/devices/platform/fsl-ehci.1/usb2/2-1/2-1.3/2-1.3:1.0/input/input1
        U: Uniq=
        H: Handlers=cpufreq_interactive 
        B: PROP=0
        B: EV=1b
        B: KEY=421 0 30001 0 0 0 0 0 0 0 0
        B: ABS=100 3f
        B: MSC=10
        
        I: Bus=0006 Vendor=0eef Product=0020 Version=0001
        N: Name="eGalaxTouch Virtual Device for Multi"
        P: Phys=
        S: Sysfs=/devices/virtual/input/input2
        U: Uniq=
        H: Handlers=cpufreq_interactive event1 
        B: PROP=2
        B: EV=b
        B: KEY=400 0 0 0 0 0 0 0 0 0 0
        B: ABS=6608000 1000003
        
        I: Bus=0006 Vendor=0eef Product=0010 Version=0001
        N: Name="eGalaxTouch Virtual Device for Single"
        P: Phys=
        S: Sysfs=/devices/virtual/input/input3
        U: Uniq=
        H: Handlers=event2 
        B: PROP=2
        B: EV=b
        B: KEY=30000 0 0 0 0 0 0 0 0
        B: ABS=3
        
        root@freescale /proc/bus/input$ 
    
    三. 解决方法:
        1. 采用shell脚本的进行解决;
        2. shell脚本如下:
            inputCheckLine=`cat /proc/bus/input/devices | grep -n "Vendor=0eef" | grep "Product=0020 Version=0001"| awk -F: '{print $1}'`
            touchEvent=`sed -n "$((${inputCheckLine}+5))p" /proc/bus/input/devices | grep -o "event."`
    
    四. 实际应用:
        ......
        while [ -z $touchEvent ]
        do
            inputCheckLine=`cat /proc/bus/input/devices | grep -n "Vendor=0eef" | grep "Product=0020 Version=0001"| awk -F: '{print $1}'`
            touchEvent=`sed -n "$((${inputCheckLine}+5))p" /proc/bus/input/devices | grep -o "event."`
            echo "please hang up USB TOUCH !"
            usleep 10
        done
        ......
        export TSLIB_TSDEVICE=/dev/input/${touchEvent}
        export QWS_MOUSE_PROTO=tslib:/dev/input/${touchEvent}
        ......
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  • 原文地址:https://www.cnblogs.com/zengjfgit/p/4981173.html
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