I am sad to admit that the answer to your question is “No”. I do know about this documentation shortcoming, and there is someone looking at it, but it will be a while before the documentation is released.
At this time the best I can suggest is that you look at the patches, the Debian Source code, and the Android source code. It seems you have already found the basic information, and unfortunately it will likely take you a lot of time and effort for you to get anything running.
Full disclosure: I am an employee of Qualcomm Canada, any opinions I may have expressed in this or any other posting may not reflect the opinions of my employer.