I have used a number of libraries from GitHub, but I can't seem to find the definitions of the instruction set used in these libraries other than what is in the examples.
Can someone help me with that. It may be obvious, but I can't seem to find them
For example I want to use the MCP3425 and GitHub has a library, but I would like a listing of all the instructions that are available in this library.
You need to check the .h file. That describes the interface of a class. Only the public part of it can be used. The private/protected part are part of the internals of a class.