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Date: Tue, 4 Mar 2008 21:01:59 +0100 (CET)
From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl>
To: Predrag Punosevac <punosevac@math.arizona.edu>
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Cc: questions@freebsd.org
Subject: Re: usb scanner
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>> ugen0: setting configuration index 0 failed
>> device_attach: ugen0 attach returned 6
>> ugen0: at uhub0 port 1 (addr 2) disconnected
>> 
>> 
>> and even /dev/ugen* doesn't exist so sane-find-scanner is unable to find 
>> anything
>> 
> FreeBSD usually uses /dev/uscanner0  as a device node for scanners (and 
> driver uscanner)unless you are using HPLIP driver.
> It is true though that in OpenBSD some scanners has to be seen as /dev/ugen0 
> since uscanner driver for OpenBSD
> does not support receiving vendor name and product.

this device is not detected as uscanner, and attaching ugen fails - no 
/dev/.. for it exist.