TSLIB

tslib is a cross-platform library that provides access to touchscreen devices and the ability to apply filters to their input events... On Linux and FreeBSD it supports all modern devices using input event drivers and includes multitouch support... Furthermore it supports the Palm Pre's CY8MRLN, UCB1x00, Sharp Zaurus sl-c7x0 and sl-5500/5000d, HP / Compaq iPaq H3600 and DMC, DMC DUS3000 Series, Hitachi Webpad, IBM Arctic II, Tatung Webpad, eGalax 0112, 210 and 0100, Waveshare and more, in part for other host platforms too.