tslib
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| ====== Tslib ====== | ====== Tslib ====== | ||
| - | [[http://automon.donaloconnor.net/installing-tslib-and-calibrating-it/83/|Installing TSLib and Calibrating it]] | + | Tslib is an abstraction layer for touchscreen panel events, as well as a filter stack for the manipulation of those events. It was created by Russell King, of arm.linux.org.uk. Examples of implemented filters include jitter smoothing and the calibration transform. |
| + | |||
| + | Tslib is generally used on embedded devices to provide a common user space interface to touchscreen functionality. It is supported by Kdrive (aka TinyX) and OPIE as well as being used on a number of commercial Linux devices including the Nokia 770. | ||
| + | |||
| + | Tslib downloads and source code are now being hosted at [[http://github.com/kergoth/tslib|github]]. | ||
| + | |||
| + | ===== Tslib compilation on a host ===== | ||
| + | //Tested on a Ubuntu 12.04 host// | ||
| + | |||
| + | Download the tslib sources: | ||
| + | <code> | ||
| + | git clone git://github.com/kergoth/tslib.git | ||
| + | </code> | ||
| + | Cross-compile them and install to default destinations as per tslib configuration: | ||
| + | <code> | ||
| + | ./autogen.sh | ||
| + | ./configure --host=arm-linux-gnueabihf | ||
| + | make && sudo make install | ||
| + | </code> | ||
| + | From now you can link your application or libraries agains the tslib but it is not possible to run ts_ - utilites like ts_calibrate because they are arm-binaries, not for x86 architecture. | ||
| + | |||
| + | Default destinations are: | ||
| + | * include folder for gcc include path -I<path> is '/usr/local/include' | ||
| + | * lib folder for gcc link path -L<path> is '/usr/local/lib' | ||
| + | ===== Tslib compilation on a target ===== | ||
| + | This tutorial was tested on a Ubuntu ARM Core distribution installed on a Somiqboard. | ||
| + | |||
| + | 1) download sources to a host as described in the previous paragraph and upload them to the target | ||
| + | |||
| + | 2) compile sources by a native gcc compiler installed on the ARM Ubuntu distribution: | ||
| + | <code> | ||
| + | ./autogen.sh | ||
| + | ./configure | ||
| + | make && make install | ||
| + | </code> | ||
| + | |||
| + | You can now run ts_* utilities like ts_calibrate or ts_test. | ||
| + | |||
| + | Default destinations are: | ||
| + | * ts.conf is in '/usr/local/etc' | ||
| + | * pointercal file is in '/usr/local/etc' | ||
| + | |||
| + | If you want to use a calibrated touchscreen with your Qt application you need to specify where Tslib files are: | ||
| + | <code> | ||
| + | export QWS_MOUSE_PROTO=tslib:/dev/input/event0 | ||
| + | export TSLIB_CALIBFILE=/usr/local/etc/pointercal | ||
| + | export TSLIB_CONFFILE=/usr/local/etc/ts.conf | ||
| + | export TSLIB_PLUGINDIR=/usr/local/lib/ts | ||
| + | </code> | ||
tslib.1370150073.txt.gz · Last modified: 2013/06/02 01:14 (external edit)
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