for dumping gpio configuration from origianl ROM
As is this is not particularly useful.
The dumper has two parts - userspace application and a kernel module.
A binary for linux 3.0.8+ is provided but if you happen to have different kernel version or too different configuration of the same kernel version it will not load. Module for 3.0.36+ kernel.
To build a module for your kernel you will need kernel sources and configuration for your kernel in which case you can just read the info form the sources. It might help with determining slight variations in configuration of the same board runnning same ROM, though.