Ok, I sort of answered my own question. If there's anyone working on the methods of the API design, check out document SW-RDK-BDC-UG-5570.pdf which is located in the docs folder after installing the "RDK-BDC Firmware Development Package" located here:
http://www.luminarymicro.com/products/mdl_bdc.html. You need to register to download the file. I'm not sure if I'm allowed to post it. It explains the command structure and also the data format that the Jags are expecting.
- Bryce