根文件系统移植之tslib移植记录
一 移植步骤:
1. 下载tslib
点我进入下载地址或使用git命令下载：
git 地址– https://github.com/kergoth/tslib.git
2. 进入下载或解压出来的tslib目录
3. 执行下面几条命令：
anzyelay@ubuntu:tslib$ ./autogen.sh //得到configure
anzyelay@ubuntu:tslib$ ./configure --host=arm-linux --prefix=安装目录 CC=交叉编译器绝对路径
anzyelay@ubuntu:tslib$ make
anzyelay@ubuntu:tslib$ sudo make install
anzyelay@ubuntu:安装目录$ ls //成功后在安装目录有如下文件
bin etc include lib不用绝对路径会出些问题，一定要绝对路径。
4. 将要用到的库文件和可执行程序移入根文件系统中对应目录。
两种方法：
下面->后的”/”指的是根文件系统的目录，不是你PC机的根目录，这个适合tslib稳定后移植
- 库：tslib/lib/文件下除去pkgconfig目录以外的其他所有文件 -> /lib
- 程序：tslib/bin文件下所有文 -> /bin
- 配置：tslib/etc/ts.conf文件 -> /etc/ts.conf
还可以选将整个目录放到根目录下的某个目录，但在配置环境变量时要做相应改变，这个适合开始移植时改错，
5. 更改文件系统的配置文件和添加环境变量
ts.conf：依据你开发板的触摸屏资料取消一个注释,这里取消下面的，不对就一个一个的试吧。
# Uncomment if you’re using a Sharp Zaurus SL-C700/C750/C760/C860
module_raw corgi在/etc/profile 中根据自己的文件系统加入以下配置：
export TSLIB_TSDEVICE=/dev/ts0 #此处如果选event0则ts.conf中要选module_raw input
export TSLIB_CONFFILE=/etc/ts.conf
export TSLIB_PLUGINDIR=/lib/ts
export TSLIB_CALIBFILE=/temp/pointercal #这里是配置校准文件保存地方的，可更改
export TSLIB_CONSOLEDEVICE=none
export TSLIB_FBDEVICE=/dev/fb0上一步如果是用的方法2，则配置如下：
export TS_ROOT=/usr/local/tslib #tslib移动到文件系统里的目录
export TSLIB_TSDEVICE=/dev/input/ts0
export TSLIB_CONFFILE=$TS_ROOT/etc/ts.conf
export TSLIB_PLUGINDIR=$TS_ROOT/lib/ts
export TSLIB_CALIBFILE=/temp/pointercal
export TSLIB_CONSOLEDEVICE=none
export TSLIB_FBDEVICE=/dev/fb0
export PATH=$TS_ROOT/bin:$PATH
export LD_LIBRARY_PATH=$TS_ROOT/lib:$LD_LIBRARY_PATH这些配置意思查看tslib/README说明如下:
42 43 TSLIB_TSDEVICE TS device file name. 44
Default (non inputapi): /dev/touchscreen/ucb1x00 45
Default (inputapi): /dev/input/event0 46 TSLIB_CALIBFILE
Calibration file. 47 Default:
${sysconfdir}/pointercal 48 TSLIB_CONFFILE Config file. 49
Default: ${sysconfdir}/ts.conf 50 TSLIB_PLUGINDIR Plugin
directory. 51 Default: ${datadir}/plugins 52
TSLIB_CONSOLEDEVICE Console device. 53 Default:
/dev/tty 54 TSLIB_FBDEVICE Framebuffer device. 55
Default: /dev/fb0
6. 执行ts_calibrate校正
[root@bst:/]# ts_calibrate
xres = 480, yres = 272
Took 26 samples…
Top left : X = 162 Y = 209
Took 30 samples…
Top right : X = 866 Y = 210
Took 31 samples…
Bot right : X = 871 Y = 581
Took 31 samples…
Bot left : X = 155 Y = 584
Took 24 samples…
Center : X = 515 Y = 395
-35.559814 0.535173 0.001486
-46.847839 0.000662 0.461112
Calibration constants: -2330448 35073 97 -3070220 43 30219 65536
二 遇到的问题汇总：
1.在执行./autogen.sh 时出现：
./autogen.sh: 3: autoreconf: not found
产生的原因是因为没有安装 automake 工具，安装命令如下：
sudo apt-get install autoconf automake libtool
2.执行./configure时出现如下错误：
erro1:
libtool: install: error: cannot install `linear.la’ to a directory not ending in /usr/local/lib/ts
make[2]: * [install-pluginexecLTLIBRARIES] Error 1
make[2]: Leaving directory `/home/anzyelay/Desktop/arm/tslib/plugins’
make[1]: * [install-am] Error 2
make[1]: Leaving directory `/home/anzyelay/Desktop/arm/tslib/plugins’
make: * [install-recursive] Error 1错误处理，在每次./configure后都要make clean再执行make.
error2：
libtool: install: (cd /home/anzyelay/Desktop/arm/tslib/plugins; /bin/bash /home/anzyelay/Desktop/arm/tslib/libtool –tag CC –mode=relink arm-linux-gcc -DTS_POINTERCAL=\”/home/anzyelay/Desktop/arm/tslib_install/etc/pointercal\” -DTSLIB_INTERNAL -fvisibility=hidden -DGCC_HASCLASSVISIBILITY -O2 -Wall -W -module -avoid-version -o linear.la -rpath /home/anzyelay/Desktop/arm/tslib_install/lib/ts linear.lo ../src/libts.la )
libtool: relink: arm-linux-gcc -shared -fPIC -DPIC .libs/linear.o -Wl,-rpath -Wl,/home/anzyelay/Desktop/arm/tslib_install/lib -L/home/anzyelay/Desktop/arm/tslib_install/lib -lts -O2 -Wl,-soname -Wl,linear.so -o .libs/linear.so
/home/anzyelay/Desktop/arm/tslib/libtool: line 8968: arm-linux-gcc: command not found
libtool: install: error: relink `linear.la’ with the above command before installing it
make[2]: * [install-pluginexecLTLIBRARIES] Error 1要指明CC如下，一定要用绝对地址，不然出下面第3个错误：
anzyelay@ubuntu:~/Desktop/arm/tslib$ ./configure --host=arm-linux --prefix=/home/anzyelay/Desktop/arm/myrootfs/usr/local/tslib CC=/usr/local/arm/4.4.3/bin/arm-linux-gcc
3. make install出libtool: install: error: relink `linear.la’ with the above command
前面配置，make都一路OK，但在make install时出错如下：
```
/bin/bash ../libtool --mode=install /usr/bin/install -c linear.la dejitter.la variance.la pthres.la ucb1x00.la corgi.la collie.la h3600.la mk712.la arctic2.la tatung.la dmc.la linear_h2200.la input.la galax.la touchkit.la '/home/anzyelay/Desktop/arm/tslib/build/lib/ts'
libtool: install: warning: relinking `linear.la'
libtool: install: (cd /home/anzyelay/Desktop/arm/tslib/plugins; /bin/bash /home/anzyelay/Desktop/arm/tslib/libtool --tag CC --mode=relink arm-linux-gnueabi-gcc -DTS_POINTERCAL=\"/home/anzyelay/Desktop/arm/tslib/build/etc/pointercal\" -DTSLIB_INTERNAL -fvisibility=hidden -DGCC_HASCLASSVISIBILITY -O2 -Wall -W -module -avoid-version -o linear.la -rpath /home/anzyelay/Desktop/arm/tslib/build/lib/ts linear.lo ../src/libts.la )
libtool: relink: arm-linux-gnueabi-gcc -shared -fPIC -DPIC .libs/linear.o -Wl,-rpath -Wl,/home/anzyelay/Desktop/arm/tslib/build/lib -L/home/anzyelay/Desktop/arm/tslib/build/lib -lts -O2 -Wl,-soname -Wl,linear.so -o .libs/linear.so
/home/anzyelay/Desktop/arm/tslib/libtool: line 8968: arm-linux-gnueabi-gcc: command not found
libtool: install: error: relink `linear.la' with the above command before installing it
make[2]: *** [install-pluginexecLTLIBRARIES] Error 1
make[2]: Leaving directory `/home/anzyelay/Desktop/arm/tslib/plugins'
make[1]: *** [install-am] Error 2
make[1]: Leaving directory `/home/anzyelay/Desktop/arm/tslib/plugins'
make: *** [install-recursive] Error 1
```
修改CC=项为其绝对地址，如下，
错误时
anzyelay@ubuntu:tslib$ ./configure --host=arm-linux --prefix=`pwd`/build CC=arm-linux-gcc
正确时
anzyelay@ubuntu:tslib$ ./configure --host=arm-linux --prefix=`pwd`/build CC=/usr/local/arm/4.9.4/bin/arm-linux-gcc
虽然我编译环境也设好了，可以找到arm-linux-gcc，但就是出错，使用绝对地址时就OK。
4.执行ts_calibrate出错如下
error1:
/bin/ts_calibrate: line 1: syntax error: unexpected end of file
file了下发现居然是x86的文件，不是arm的。anzyelay@ubuntu:myrootfs$ file bin/ts_calibrate bin/ts_calibrate: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=0xb79294591df01693dcc3ae349c4995c59a527f80, not stripped后来发现PC机的PATH变量复原了,应该是sudo su后转回来是复原的，查看/etc/profile是正常的，重新执行了下source /etc/profile，查看PATH正常了。再重新编译安装后正常：
anzyelay@ubuntu:myrootfs$ file usr/local/tslib/bin/ts_calibrate usr/local/tslib/bin/ts_calibrate: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, not strippederror2:
[root@bst:/]# ts_calibrate
ts_calibrate: error while loading shared libraries: libts-1.0.so.0: wrong ELF class: ELFCLASS64这个是由于库文件不对造成的，看是否把tslib/lib/libts-1.0.so.0移到了/lib下，如果是用方法2整个tslib目录移的则要指定库文件的搜索路径如下：
export TS_ROOT=/usr/local/tslib
export LD_LIBRARY_PATH=$TS_ROOT/lib:$LD_LIBRARY_PATHerror3:
[root@bst:/]# ts_calibrate
xres = 480, yres = 272
ts_read: Invalid argument因为我的ts.conf中选的模块是“module_raw corgi”，故更改配置文件中的TSLIB_TSDEVICE变量如下
export TSLIB_TSDEVICE=/dev/input/event0 修改为 export TSLIB_TSDEVICE=/dev/input/ts0深入探究发现有以下对应关系：
/dev/input/event0 <—>module_raw input
/dev/input/ts0 <—>module_raw corgi
两者都是可以的，只要ts.conf和profile写上对应配置。error 4
root@~# ts_calibrate xres = 800, yres = 480 tslib: Selected device is not a touchscreen (must support ABS and KEY event types) Took 3 samples... Top left : X = 1993966148 Y = 20672392 Took 3 samples... Top right : X = 1993966148 Y = 20672392 Took 3 samples... Bot right : X = 1993966148 Y = 20672392 Took 3 samples... Bot left : X = 1993966148 Y = 20672392 Took 3 samples... Center : X = 1993966148 Y = 20672392 0.348604 -0.002357 0.227393 -0.214578 0.004819 -0.464815 Calibration constants: 22846 -154 14902 -14062 315 -30462 65536从Selected device is not a touchscreen这句看是TSLIB_TSDEVICE配置出错了，检查下：
export TSLIB_TSDEVICE=/dev/input/event0查看下设备
root@/etc# cat /proc/bus/input/devices I: Bus=0019 Vendor=0000 Product=0000 Version=0000 N: Name="20cc000.snvs-pwrkey" P: Phys=snvs-pwrkey/input0 S: Sysfs=/devices/soc0/soc.0/2000000.aips-bus/20cc000.snvs-pwrkey/input/input0 U: Uniq= H: Handlers=kbd event0 evbug B: PROP=0 B: EV=3 B: KEY=100000 0 0 0 I: Bus=0000 Vendor=0000 Product=0000 Version=0000 N: Name="iMX6UL TouchScreen Controller" P: Phys= S: Sysfs=/devices/virtual/input/input1 U: Uniq= H: Handlers=mouse0 event1 evbug B: PROP=0 B: EV=b B: KEY=400 0 0 0 0 0 0 0 0 0 0 B: ABS=3 I: Bus=0003 Vendor=0c45 Product=6340 Version=0000 N: Name="USB 2.0 Camera" P: Phys=usb-ci_hdrc.1-1.1/button S: Sysfs=/devices/soc0/soc.0/2100000.aips-bus/2184200.usb/ci_hdrc.1/usb1/1-1/1-1.1/1-1.1:1.0/input/input3 U: Uniq= H: Handlers=kbd event2 evbug B: PROP=0 B: EV=3 B: KEY=100000 0 0 0 0 0 0触摸屏是应该是event1,修改之重启，再次执行ts_calibrate