Here you can find the command line tool petrockutil. This command line tool allows to scan serial ports, read the firmware version, and update the firmware of the GamepadBlock.

Downloads

Here you can find downloads for Linux, Windows, and OSX:

Linux

Linux-386
Linux-AMD64
linux-arm

Windows

Windows-386
Windows-AMD64

OSX

Darwin-amd64

How To

You can the full README at Github. Here is a screencast that shows various use cases:

Please report bugs or feature requests on the Github project site.