On 2021/2/26 16:38, Greg KH wrote: > On Fri, Feb 26, 2021 at 04:21:37PM +0800, Longfang Liu wrote: >> Our current XHCI hardware controller has been customized to only >> support USB 2.0 ports. > > That sounds like a spec violation, right? Why do you want to do this? > > greg k-h > . > I hope to support a USB2.0-only mode on the XHCI controller through software configuration. Thanks. Longfang Liu
