Well, if you had code that was a bit more specific on which inputs you wanted to sample it would likely be simpler. General purpose is ususally harder than specific. On the other hand, this program (that's already written for you 
)may do everything you ever need...
On the opposite end of the spectrum, I threw together a program that read a three axis accelerometer module; it was about 15 lines long and took about 5 minutes to write, breadboard, and see results. Not sophisticated, but I could verify that both the accelerometer and the gravity in the lab worked.
-j