Who needs a library when you can just bitbang the bits that the chip wants at it? That is what I did when I wanted to figure out how the MAX7219 worked. Read the datasheet and you will find that the bits you have to send at these chips are simpler than you would expect. They are just ones and zeros. I thought every idiot could count to one, someone told me that once I forget the dude's name.
SAMPLE THE PART. You can get two. I know this for a fact. If you don't end up using it, ...?
Hell, I'd send you one of mine, but I got them in SSOP package.