Connecting to other devices across USB

[Kylotan]

I need to be able to communicate with other computers/devices across the USB port on my PocketPC, but those devices are not necessarily going to have ActiveSync installed - in fact they may not even be running any variety of Windows.

Therefore I would like to hear any ideas on how this is possible... any APIs I would need, what protocols would be necessary (is USB On-the-go support generally available?), any links to software (free or otherwise) or information, etc.

Any comments appreciated, as I'm not sure where to start looking on this one; it seems like most people rely on the Microsoft ActiveSync functionality.

[AnswerDude]

I'm not sure if this will help, but take a look at this software.
http://www.bitbanksoftware.com/IRDAsh.html

[Kylotan]

Hmm... it might be useful, thanks. The software itself won't be but maybe we can license some of the code.

Still eager to hear any other ideas though! :)

[mirso]

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wceddk/htm/wceddkUniversal_Serial_Bus_Drivers.asp