* Stefan Reinauer stepan@coresystems.de [060707 15:25]:
Eric pointed this out and I did not even notice what he was saying:
EHCI has a workaround method called the "USB2 Debug port for legacy free machines"
This debug port can be used by simple inb/outb sequences, not more complex than serial io.
According to this document
http://www.intel.com/technology/usb/download/DebugDeviceSpec_R090.pdf
what you need is a debug device, which mostly looks like a usb style null modem cable. No idea where to get this hardware though.
D'uh - it reads any usb 2 to usb 2 data link cable can be used for this purpose. Such cables are available for ~ 10$
Also: This is at least supported by the ICH4 and newer Intel EHCI controllers. I wonder whether AMD or others support it as well?
Stefan