Friendly Links

Forum
http://forum.arcadecontrols.com/

A Nice EMS TopGun set up guide
http://wiki.arcadecontrols.com/wiki/LCDTopGun#Hardware_calibration

Other Drivers

WinGun driver
http://www.guncon2driver.com/

Smog's GunCon2PC driver
http://xoomer.alice.it/guncon2/

EMS TopGun driver for Linux (ver 0.2, by Adolfo R. Brandes)
http://ubuntuforums.org/showpost.php?p=4718068&postcount=13

It works on all kernel versions up to 2.6.24.
It has been tested under Ubuntu 7.10 (Gutsy) and Ubuntu 8.04 (Hardy).
It should work on all distribution.

download link