buildroot配置QT5和tslib

article/2025/1/16 3:51:54

buildroot 移植参考文章

buildroot配置安装qt5

在buildroot下面，打开配置界面

make menuconfig
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选择target packages项

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找到QT5 勾选

进入QT5选项，勾选gui module 和 widgets module。

buildroot编译安装tslib

执行make menuconfig

Target packages —>
Graphic libraries and applications (graphic/text) —>
[] Qt5 —>
[] Enable Tslib support

或者qt–>Mouse drivers —>tslib
编译成功后下载到开发板或nfs mount过去执行ts_calibration校正看看是否可以.

开发板配置

buildroot 配置中tslib使能后，在 /etc/profile中加入以下内容。

#!/bin/sh
export T_ROOT=/usr/tslib4arm                        #目录
export TSLIB_TSDEVICE=/dev/input/event1                     #触摸屏设备文件
export TSLIB_CALIBFILE=/etc/pointercal                #指定触摸屏校准文件pintercal的存放位置
export TSLIB_CONFFILE=/etc/ts.conf             #tslib模块配置文件
export TSLIB_PLUGINDIR=/usr/lib/ts/                #tslib插件库目录
export TSLIB_CONSOLEDEVICE=/dev/tty
export TSLIB_FBDEVICE=/dev/fb0                        #framebuffer设备文件
echo "tslib init success!"

#生效
source /etc/profile

如果没有设置上面环境变量将出现以下错误：
错误1：tslib: Selected device is not a touchscreen (must support ABS_X and ABS_Y events
错误2：ts_open: No such file or directory

执行QT程序：
./analogclock -platform linuxfb

如果执行./analogclock出现如下错误：
could not find or load the Qt platform plugin "xcb"
或者 could not find or load the Qt platform plugin "eglfs"

在后面加 -platform linuxfb，即可执行。
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找不到字体库解决方法

# ./qt_test_app -platform linuxfbQFontDatabase: Cannot find font directory /usr/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.
QFontDatabase: Cannot find font directory /usr/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.
QFontDatabase: Cannot find font directory /usr/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.
QFontDatabase: Cannot find font directory /usr/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.
QFontDatabase: Cannot find font directory /usr/lib/fonts.
Note that Qt no longer ships fonts. Deploy some (from http://dejavu-fonts.org for example) or switch to fontconfig.