After switching from buildroot to openembedded, I got almost everything to work, a2d, wireless, and more.  Plus, after a bit of time I got the pwc driver and my Logitech 4000 QuickCam working with pwc.  OpenEmbedded makes it nice to change the base image and installed packages.  I hope to get a basic image that has everything that the quadrotor needs out of the box.