If you write to the linux-usb mailing list they'll probably ask you to 
recompile the kernel with the USB verbose debugging on. I suspect 
that is what is needed to figure out this problem. I'd suspect there is 
some hardware problem that isn't worked around.

If you are plugging it into the front USB socket on a machine you are 
using a USB_2_ rated cable internally in the machine, right? If there are 
other cables involved they are also rated for USB2?

On Fri, 1 Aug 2008, Troy Dawson wrote:

> Michel Peru wrote:
>> Hi all,
>> 
>> The only way that I have found to make my USB key working with my PC runn
>> ing
>> SL5.2 is to do a "modprobe -r ehci_hcd".
>> 
>> That works fine but unfortunately I can only transfer data at the rate of
>>  a
>> USB1.1 device...
>> 
>> My PC is based on a Asus K8N4E mother board with a Nvidia chipset.
>> 
>> Any help to make my USB key working at a USB2.0 data rate would be greatl
>> y
>> appreciated.
>> 
>> Michel Peru
>
> Sorry for the delay, but I thought someone else would have looked into this 
> by now.
>
> A bit more information is needed.  Can you send us the following
>
>  lspci
> and
>  cat /etc/modprobe.conf
>
> Thanks
> Troy
>

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