Re: [Libusb-devel] USB 2.0

[Sophia Li <Sop...@Su...>]

Tim Roberts wrote:
> 
> Do you have evidence that this really works?  I thought the UHCI drivers
> came to life as children of the EHCI driver, not necessarily as
> independent hardware entities.  However, I admit that I haven't tried it.

They are separate in most functionality except that the port ownership 
may be shifted from EHCI to UHCI. If EHCI driver is in place, all ports 
are routed to EHCI at their initial connection, but full/low-speed 
connection will be shifted to UHCI later after port reset. If there is 
no EHCI driver at all, all ports would be routed to UHCI.

Sophia