uhub0: device problem

Bruce Cran bruce at cran.org.uk
Wed Nov 5 21:34:56 PST 2008

On Wed, 5 Nov 2008 12:21:30 +0000
"stephen farrell" <stephenf22 at googlemail.com> wrote:

> Hi, first off I'm new to FreeBSD so be gentle! :)
> I seem to be having problems with a HP 7260 usb printer.  Cups is
> installed and setup correctly following the Handbook method but i'm
> finding that the uhub is getting disabled, stalling and timing out.
> I have reproduced the same results on my other system.
> Both systems are running FreeBSD 7.0-RELEASE & GENERIC kernel.
> The error message from dmesg is:
> uhub0: device problem (IOERROR), disabling port 1
> I do not have any issues with usb mouse or keyboards.  Is this a
> known issue or can i rectify the problem at all.  Would be grateful
> for some help as i am new to this level of configuration.

I've seen problems like this on my old PC, which is running an Asus
A7V333 motherboard from 2002. Its EHCI controller is reported as
adhering to the 0.95 standard, which according to the update document
from http://www.intel.com/technology/usb/ehcispec.htm was finished in
2000. I've assumed that since it's so ancient it's no surprise
that it struggles with modern USB devices.

Unfortunately I don't know of any solutions - or even if that's the
problem. The first step would probably be to
let people see what sort of hardware you have: could you post the
output of the dmesg command please?

Bruce Cran

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