Re: umass problem with xhci (USB 3)

[Paul Goyette <paul%whooppee.com@localhost>]

On Sat, 4 Jun 2016, Takahiro Hayashi wrote:

> > <snip>
> >
> > but every device I plug in, regardless of USB connector, gets attached to 
> > uhub0 (the one for xHCI)!  So I cannot get the external drive to work by 
> > connecting to a USB2 port.
> >
> > Any suggestions?
>
> To avoid the problem, please add "userconf=disable xhci*" to /boot.cfg.
>
> The xhci driver tries to route all USB ports (even 2.0) to xhci
> as possible if it's Intel PCH. (see sys/dev/pci/xhci_pci.c)
> You can see some information about port routing by booting kernel -x.

This doesn't seem to be such a good idea!  If I add the userconf 
command, then none of my USB devices works, not even the keyboard and 
mouse!  (Please don't ask for a dmesg, I have no working keyboard to 
type the dmesg command!)

For now, I guess I will have to disable USB3 in the BIOS settings.



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