Re: usb2: scanner no longer working

From: Stefan Ehmann <shoesoft_at_gmx.net>
Date: Fri, 7 Nov 2008 20:19:07 +0100
On Friday 07 November 2008 19:35:17 Hans Petter Selasky wrote:
> On Friday 07 November 2008, Stefan Ehmann wrote:
> > On Friday 07 November 2008 18:42:49 Hans Petter Selasky wrote:
> > > On Friday 07 November 2008, Hans Petter Selasky wrote:
> > > > Hi,
> > > >
> > > > Could you dump the current config descriptor of your scanner?
> > > >
> > > > usbconfig -u 3 -a 2 dump_curr_config_desc
> >
> > # usbconfig -u 3 -a 2 dump_curr_config_desc
> > ugen3.2: <CanoScan Canon> at usbus3, cfg=0 md=HOST spd=HIGH (480Mbps)
> > pwr=ON
...
> > > 3 and 2 are the numbers after ugen, like ugen3.2
> >
> > To your other mail:
> > I'm running i386. HUB debugging didn't output any obvious errors.
>
> Hi,
>
> Try the following patch to libusb20. I suspect that it is the
> set_configuration call that makes trouble!
>
> http://perforce.freebsd.org/chv.cgi?CH=152628
>
> Thanks for reporting.
>
> My private SVN repository has also been updated to include this patch if
> you are using that.

The device isn't disappearing any longer. The scanner is basically working 
now. Thanks for your quick fix.

It seems I have another issue now: When I run scanimage the system becomes 
unresponsive for quite some time before the scanning starts.

I'll do more testing tomorrow and try to give more details then.

-- 
Stefan
Received on Fri Nov 07 2008 - 18:19:14 UTC

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