This is an open source Linux support for Pi Engineering's X-Keys
products written in C++. Features code for accessing all X-keys controls
and key states and includes a simple, straight forward example GUI.

Example source code for the installed libraries, test & pietestgui
programs are found in the piehid, test & testgui directories in
/usr/doc/xkeys-sdk-$VERSION. The DataReports directory also found there
contains the message formats for the various X-Keys products.