Hacking on the reference for processing-io I ran into two things that I couldn't get to work - and I think which might be limitations of the script that cranks out the reference. Posting them as separate issues for reference. Please feel free to close if this is known or very much the expected behavior. (And please tell me if there is a way to do it altogether!)

As far as I can tell, a method's syntax is always simply displayed as .method(params) in the generated documentation - without an indication if the method is perhaps static, and thus can be called without instantiating a new object.

The Hardware I/O library consists partially of static methods, like digitalRead(), which are done this way in order to stay close to the Arduino API, and partially of "proper" classes, like for I2C and SPI. I am was thinking that it could be helpful to specify the syntax of static methods by prefixing it by the class name. So instead of digitalRead() being .digitalRead(pin) it would be GPIO.digitalRead(pin), since you wouldn't use this method in any other context really.

I tried overwriting the syntax in the XML file (setting <syntax></syntax>), but this didn't seem to have had an effect on the output.