Not sure if this is the proper place to ask this question, but here goes anyway.
I'm trying to use DOS to communicate basic commands with an attached USB device, however, I don't know how to talk with the PIIX3 properly to do this. The manual talks about a Base Address, but it doesn't say how to set this. Is there a way to set this or to determine it in DOS?
Also, the manual mentions "Function 2" for USB. What is this referring to?
Any help is appreciated, and I apologize if this is not the forum for this type of question.