在Ubuntu下移植好触摸屏的驱动后,一般都要移植一个tslib来配合,在用户层对触摸屏的数据进行滤波和矫正,同时也可以给应用程序一个统一的接口,很多GUI都支持tslib的接口.对于tslib的基础知识和移植,网上google一下就是一大把,下面简要地介绍一下我的交叉编译过程:
(1)下载最新版本的tslib,目前最新的是1.4版,下载方法是通过CVS下载:
$ mkdir – m777 cvs
$ cd cvs
$ export CVSROOT = : pserver : anoncvs@cvs . handhelds . org : / cvs
$ cvs login
Logging in to : pserver : anoncvs@cvs . handhelds . org : 2401 / cvs
CVS password : anoncvs
cvs login : CVS password file / home / daiq / . cvspass does not exist – creating a new file
$ cvs co apps / tslib
这样会在你的$PWD/cvs下建立一个 apps文件夹,其中的 tslib就是我们下载下来的源码.
(2)产生configure文件.
这里要先安装一些工具,我使用ubuntu9.10就不用安装,但是还是用新立得安装:autoconf、automake和libtool等软件包(新立得会自动添加其他需要的软件包).
sudo apt – get install m4 autoconf automake libtool
先设置好交叉编译环境:
$ export PATH = $ PATH : / work / cross / toolchain / gcc – 3 . 4 . 5 – glibc – 2 . 3 . 6 / arm – softfloat – linux – gnu / bin
$ export CC = arm – softfloat – linux – gnu – gcc
$ export CXX = arm – softfloat – linux – gnu – g + +
执行 ./autogen.sh
daiq@daiq – desktop : / work / cvs / apps / tslib$ . / autogen . sh
Libtoolize . . . libtoolize : putting auxiliary files in ` . ‘.
libtoolize: copying file `./ltmain.sh’
libtoolize : You should add the contents of the following files to `aclocal . m4 ‘:
libtoolize: `/usr/share/aclocal/libtool.m4′
libtoolize : ` / usr / share / aclocal / ltoptions . m4 ‘
libtoolize: `/usr/share/aclocal/ltversion.m4′
libtoolize : ` / usr / share / aclocal / ltsugar . m4 ‘
libtoolize: `/usr/share/aclocal/lt~obsolete.m4′
libtoolize : Consider adding `AC_CONFIG_MACRO_DIR ( [ m4 ] ) ‘ to configure.ac and
libtoolize: rerunning libtoolize, to keep the correct libtool macros in-tree.
libtoolize: Consider adding `-I m4′ to ACLOCAL_AMFLAGS in Makefile . am .
Done .
Aclocal . . . Done .
Autoheader . . . Done .
Automake . . . configure . ac : 21 : installing ` . / config . guess ‘
configure.ac:21: installing `./config.sub’
configure . ac : 7 : installing ` . / install – sh ‘
configure.ac:7: installing `./missing’
plugins / Makefile . am : installing ` . / depcomp
Done.
Autoconf…Done.
Now you can do ./configure, make, make install.
，流过泪的眼睛更明亮，滴过血的心灵更坚强!
