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Re: Still cant talk to USD ports (Todd Gruhn) writes:

>Is it possible to tell the system to access port-x as a USB-3 or USB-2  port ?

You could probably add a feature to disable USB-3 functionality for a port.

On older systems the xhci controller only supports USB-3 and the USB-2 functionality
is provided by a separate ehci controller. Shouldn't be difficult to disable USB-3

On newer systems the xhci controller learned to talk USB-2 as well. I'm not sure
if you can disable USB-3 there without disabling USB-2 at the same time.

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