> BTW, Daniel, I wrote a simple command line tool that talks to a > hp5400 to query it for its version string. This can be useful > as an example to do some low-level debugging in the early stages > of hacking. You still need to modify it to use the USB-over-USB > protocol, though, but I can help you with that.
Bertrik, thanks, that is great news. I checked Pierre's sources and was somewhat flustered. This is getting far more involved than I expected it to be ... If you could send me your tool, I'll happily use it to get my own enquires going. Regards Daniel