I don't know if you know about this or not, but there is a community

wiki at http://www.chip-community.org/index.php/Main_Page

It has examples on using buildroot to flash images to chip
http://www.chip-community.org/index.php/Flashing_Buildroot_Image_from_Ubuntu

Again, I'm clueless :P I have just received some chip pro's and I am

trying to make myself a neat little MP3 player with bluetooth audio

support. Found the wiki up there through some searching. This is my
first foray into working with embedded linux devices as well.