On Tue, 1 Jan 2013, Joe Henley wrote: > Hi, > > My PC has several OHCI/UHCI controllers; it has one EHCI controller. I > need to be able to connect two hi-speed USB devices to the PC and they > need to be on different busses (or at least that's what the > maunufacturers claim). Whenever I plug in the second device, regardless > of the physical USB connector on the PC back-plane I use, it is always > put on the same bus as the first device. > > Is there a way to force hi-speed support on two different busses? Or do > I have to purchase and install a hi-speed USB add-on card? If you have only one EHCI controller then you have only one high-speed bus. If you want to put the two devices on different buses, you'll have to buy an add-on card. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html