http://bugzilla.suse.com/show_bug.cgi?id=976813
http://bugzilla.suse.com/show_bug.cgi?id=976813#c18
--- Comment #18 from Johannes Meixner ---
Regarding comment#16 about using differnt USB kernel drivers:
I am neither a USB expert nor a kernel expert but according to
https://bugzilla.opensuse.org/show_bug.cgi?id=920067#c23
it seems in general it is not possible to use other USB
kernel drivers than those that are automatically used.
As far as I know nowadays USB3 capable hardware in the computer
is different compared to traditional USB2 hardware in the computer
so that for USB3 only xhci_hcd works but xhci_hcd does not work
for traditional USB2.
Note that I am talking about the USB3 chips versus USB2 chips
in the computer i.e. the hardware where the USB kernel drivers
are used for.
One can nevertheless connect a USB2 device to a USB3 connector.
Then the USB3 chips in the computer (with the xhci_hcd kernel driver)
are used for a USB2 device that is connected to a USB3 port,
cf. the section about "USB Speed" in
https://en.opensuse.org/SDB:Configuring_Scanners
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