Thanks to the developer who decided to release his library with no documentation and hard coded values .. 10 hours well wasted !

Sounds to me that you didnt do your homework before starting to use that library ;)

Dont use a lib, if you dont like/see docs.

@rusty-hacker This doesn't work in big corporations where you are forced to use a library written internally. Sometime documentation are in another language. Sometimes not at all available reverse engineering is the only option. Even name of variables are in other languages. Then we have to debug line by line.