linux 觸摸屏的配置

觸摸屏驅動調試完成後，確保驅動能正常工作（ts_test、ts_print 打印正常）。Qt app 不一定能正常使用，還需要導出以下環境變量：

export DISPLAY=:0

export QT_QPA_EGLFS_FB=/dev/fb0
export FB_FRAMEBUFFER_0=/dev/fb0
export QT_QPA_PLATFORM=eglfs
export QT_EGLFS_IMX6_NO_FB_MULTI_BUFFER=1

 

dev=`ls /dev/input | grep "touchscreen" | cut -b 12`

for i in $dev
do
  let dev_num+=1

done
zero=0

if [ $dev_num -gt $zero ];then
        t=`echo $dev | awk '{printf $1}'`
        ts_dev="/dev/input/event$t"
        export QT_QPA_EVDEV_TOUCHSCREEN_PARAMETERS=$ts_dev    #touchsreen
        export QT_QPA_EGLFS_HIDECURSOR=1

        export LD_PRELOAD=/usr/lib/libts.so.0
        export QT_QPA_EGLFS_DISABLE_INPUT=1
else

        export QT_QPA_EVDEV_MOUSE_PARAMETERS=/dev/input/event0    #mouse
        export QT_QPA_EGLFS_HIDECURSOR=0
fi

 

export TSLIB_TSEVENTTYPE=INPUT
export QTDIR=/usr/bin/qt5
export TSLIB_CONSOLEDEVICE=none
export TSLIB_FBDEVICE=/dev/fb0
export TSLIB_CALIBFILE=/etc/pointercal
export TSLIB_TSDEVICE=/dev/input/event0
export QWS_DISPLAY=LinuxFB:mmWidth=800:mmHeight=300
export TSLIB_CONFFILE=/etc/ts.conf
export TSLIB_PLUGINDIR=/usr/lib/ts
export LD_LIBRARY_PATH=/usr/lib/ts
export QTDIR=/usr
export QT_QPA_PLATFORM_PLUGIN_PATH=$QTDIR/lib/plugins/
export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH
export QML2_IMPORT_PATH=$QTDIR/lib/qml