Hi, > I had understood that the xhci could be a legacy PCI device or a PCI > Express device depending on the socket it was plugged into (or was that > possibly just someone doing some hand-waving over the fact that > obscuring the PCI Express capabilities effectively turns it into a > legacy PCI device?).
That is correct, it'll work both ways. > If that's the case, why do you prefer the default > USB controller to be added in a root-port rather than as an integrated > device (which is what we do with the group of USB2 controllers, as well > as the primary video device) Trying to mimic real hardware as close as possible. The ich9 uhci/ehci controllers are actually integrated chipset devices. The nec xhci is a express device in physical hardware. That is more a personal preference though, there are no strong technical reasons to do it that way. cheers, Gerd
