The reference manual ug-237.pdf does provide a wealth of information, however a lot remains unexplained.
For example how a device driver would be developed to separate the video pixels from the info pixels. A whitepaper or book on developing software for the device would be great.
Maybe the forum will provide answers to statements in the 237.pdf which assume existing knowledge. It seems an open source driver remains to be developed. Perhaps analog devices would be interested in an effort to produce an open source linux driver ?