On Fri, Jun 28, 2013 at 09:00:08PM -0400, Chris Knadle wrote: > Sounds right. On a PC I just built, modules ohci_hcd, xhci_hcd, and ehci_hcd > all get loaded. Via '/sbin/modinfo <module>' it looks like: > > ohci_hcd -> USB 1.1 > ehci_hcd -> USB 2.0 > xhci_hcd -> doesn't say, but follows that it's likely for USB 3.0 > > > I won't promise 100% it will "just work", but in general, it should > > "just work". > > Sounds right. [I don't have any USB 3.0 devices to test this box with, but I > think it _should_ work.]
xhci is 100% for usb3; the question is does it cover ALL usb3 devices. Some research and asking around some usb folk I know says "yes"; any usb3 device should be covered by the xhci driver. As far as usb3 performance goes - the original post was about a WD hard drive on usb3. You'll see some performance boost, you'll DEFINITELY see some performance boost for operations hitting the drives cache, but you'll be hitting spindle speeds soon enough for any large file IO. Don't expect miracles, but you probably won't be too disappointed. -m --
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