Sharkoon QuickPort XT USB3.0 at full speed only

Hans Petter Selasky hselasky at c2i.net
Mon Oct 24 09:25:55 UTC 2011


On Monday 24 October 2011 10:42:50 Franz Schwartau wrote:
> Hi Hans!
> 

Hi,

> But if I connect the QuickPort it is set to full speed no matter which
> port or which cable I'm using... And to repeat it: Other OS set the
> QuickPort to high speed with the _same_ hardware setup.

It might be that they issue some control request to force the HUB into High 
speed mode. You would need to check the USB 2.0 specification (HUB chapter) 
about that. Control requests can be issued using "usbconfig -d X.Y do_request" 
command. Look for "other speed" keyword.

--HPS

> 	Best regards
> 		Franz


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