Tslib: Difference between revisions
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[*] Build/install a shared libgcc? | [*] Build/install a shared libgcc? | ||
== | ==Configuration== | ||
* To work, Tslib needs a valid config file: | ===Config file=== | ||
* To work, Tslib needs a valid config file ''/etc/ts.conf'': | |||
# cat /etc/ts.conf | # cat /etc/ts.conf | ||
module_raw input | module_raw input | ||
module pthres pmin=1 | module pthres pmin=1 | ||
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module linear | module linear | ||
* | ===Envt variables=== | ||
* You should define some ENVT variables too: | |||
export TSLIB_TSDEVICE=/dev/input/event0 | export TSLIB_TSDEVICE=/dev/input/event0 | ||
export TSLIB_TSEVENTTYPE=INPUT | export TSLIB_TSEVENTTYPE=INPUT | ||
export TSLIB_CONFFILE=/etc/ts.conf | export TSLIB_CONFFILE=/etc/ts.conf | ||
export TSLIB_CALIBFILE=/etc/pointercal | export TSLIB_CALIBFILE=/etc/pointercal | ||
* | ===Device file=== | ||
* ''/dev/input/event0'' is created from the infos got from: | |||
# cat /sys/class/input/event0/dev | # cat /sys/class/input/event0/dev | ||
13:64 | 13:64 | ||
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crw-r--r-- 1 root root 13, 64 Jan 1 00:39 event0 | crw-r--r-- 1 root root 13, 64 Jan 1 00:39 event0 | ||
# | # | ||
===Calibration=== | |||
* ''/etc/pointercal'' is created when running Tslib calibration tool: | |||
# /usr/bin/ts_calibrate | |||
==Testing it== | |||
# /usr/bin/ts_test | |||
[[Image:Tslib_calibrate.jpg]] | |||
==Links== | ==Links== | ||
Revision as of 00:26, 5 July 2007
Library to provide a common interface to touchscreen and allow touchscreen events filtering or calibrating...
Compiling
- Be sure to have libtool package installed (tested with 1.5.22-4 version). Otherwise you will have following errors:
configure.ac:25: error: possibly undefined macro: AC_DISABLE_STATIC
If this token and others are legitimate, please use m4_pattern_allow.
See the Autoconf documentation.
configure.ac:26: error: possibly undefined macro: AC_ENABLE_SHARED
configure.ac:27: error: possibly undefined macro: AC_LIBTOOL_DLOPEN
configure.ac:28: error: possibly undefined macro: AC_PROG_LIBTOOL
- Be sure to have automake-1.6 or higher package installed (tested with 1.7 version -> working and 1.9.6 -> not working !). After automake package installation don't forget to update your /etc/alternatives/automake and /etc/alternatives/aclocal symlinks (tested on Ubuntu).
lrwxrwxrwx 1 root root 20 2007-06-27 21:43 /etc/alternatives/aclocal -> /usr/bin/aclocal-1.7 lrwxrwxrwx 1 root root 21 2007-06-27 21:39 /etc/alternatives/automake -> /usr/bin/automake-1.7
- In Buildroot, if you don't have configured the C++ cross-compiler yet, then:
$ make menuconfig Toolchain Options ---> [*] Build/install c++ compiler and libstdc++? [*] Build/install a shared libgcc?
Configuration
Config file
- To work, Tslib needs a valid config file /etc/ts.conf:
# cat /etc/ts.conf module_raw input module pthres pmin=1 module variance delta=30 module dejitter delta=100 module linear
Envt variables
- You should define some ENVT variables too:
export TSLIB_TSDEVICE=/dev/input/event0 export TSLIB_TSEVENTTYPE=INPUT export TSLIB_CONFFILE=/etc/ts.conf export TSLIB_CALIBFILE=/etc/pointercal
Device file
- /dev/input/event0 is created from the infos got from:
# cat /sys/class/input/event0/dev 13:64 # mkdir /dev/input # cd /dev/input/ # mknod event0 c 13 64 # ls -al drwxr-xr-x 2 root root 0 Jan 1 00:39 . drwxr-xr-x 5 root root 0 Jan 1 00:39 .. crw-r--r-- 1 root root 13, 64 Jan 1 00:39 event0 #
Calibration
- /etc/pointercal is created when running Tslib calibration tool:
# /usr/bin/ts_calibrate
Testing it
# /usr/bin/ts_test
