SANE and the Epson Perfection 2450 on USB (retry)

Alex Janssen alex at
Tue Feb 26 03:42:24 UTC 2008

Jack Bowling said the following on 02/25/2008 04:31 AM:
> On Sun, Feb 24, 2008 at 04:45:21PM -0500, Alex Janssen wrote:
>> I am trying to get SANE to work with my Epson Perfection 2450, again.
>> Can anyone or does anyone want to  try to decipher the output from 
>> 'scanimage' run with SANE_DEBUG_SANEI_USB=128?  I've attached it.
>> I'm hoping the ouput might lead someone with more knowledge to the cure for 
>> this problem.  It keeps telling me "scanimage: sane_start: Error during 
>> device I/O".  In order to scan anything, I still have to go back to Win XP.
>> The backend maintainer claims it works fine with Suse.  I don't have Suse 
>> installed anywhere.
> <snip>
> Alex - I could only get the 2450's usb connection going by throttling it
> through a USB v1.1 hub. I tried the firewire connection on my new PC which was
> so equipped and it works perfectly. I think the 2450's USB firmware is
> less than ideal. 
> Jack
What about all of the "error obtaining child information: Operation not 
permitted" messages?  Are my permissions set wrong?


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