[PD] Where to find comprehensive documentation about Firmata

Hi,

This is probably slightly OT, but I am using Pduino and I guess some of you can help me find complete documentation about Firmata, especially about how the StandardFirmata firmware is expected to work.

For example I was looking for the details of how the "set pin mode" message works, and I've not been able to find them. At arduino.cc I only found the reference of the Arduino's pinMode() function, while at firmata.org the most I could find was:

• set pin mode(I/O) 0xF4 pin # (0-127) pin

state(0=in)

without even a list of existing pin modes.

I guess there must be some documentation somewhere that explains the semantics of each Firmata message and how exactly the StandardFirmata firmware is expected to behave in response to each message...

Thanks m.