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Re: USB3.0 problem: xhci_hcd not found



On Sun, 30 Jan 2011 22:49:20 +0000, Krzysztof Bieniasz wrote:

> I'm having an issue with my usb 3.0 port. I've recently bought an Asus
> N73JF laptop which has one such port. I'm running a fully updated
> Squeeze with the 2.6.32-5-amd64 kernel image from the Debian repo.
> During boot I see lots of:
> "hub 1-1:1.0: unable to enumerate USB device on port 5" and the port
> doesn't work. 

What kind of device do you have attached to the USB 3.0 port? What 
happens if you attach another device?

> When I run "lspci -v" I get the following (among others):

(...)
 
> So obviously xhci is used for it, as it should I guess. Some google
> search returned, that it might be an issue with ehci getting in the way
> so I experimented a bit with modprobe. I disabled ehci_hcd and when I
> typed "modprobe xhci_hcd" I got the following response:
> 
> FATAL: Module xhci_hcd not found.

Hum, I would try the opposite: enforce the use of "ehci_hcd" (or 
uchi_hcd, whatever you have it in your system) and see how it goes 
(unload "xhci_hcd" and connect the USB 3.0 device to the USB 3.0 port, 
then run "dmesg" to get the output messages).
 
> It's the same with ehci enabled so I guess this has nothing to do with
> it. I looked into /sys/bus/pci/drivers/ and xhci_hcd is there all right.
> 
> Does anyone know what I'm missing? It would be nice to be able to use
> the usb 3.0 but I can't seem to find any solution. All advice are
> welcome

I guess that USB 3.0 stack is still under heavy development in the latest 
kernel branch (2.6.37.x) :-?

Greetings,

-- 
Camaleón


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