[sane-devel] S..L..O..W USB Scanning with Epson 1650

[Justin S. Peavey]

On Thu, Nov 15, 2001 at 07:11:26PM -0500, Karl Heinz Kremer wrote to Cc sane-devel at mostang.com:
> I read your post on the usb group, and your suspicion that this problem
> is caused by the USB subsystem is very likely correct. The scan times
> you are listing are definitely not right. You should get about the 
> same times as you list for the Windows driver. I suspect that it has
> to do with your dual CPU setup.
> 
> Sorry, but I can not help to solve this problem.
> 
> Karl Heinz
> 

I'm going to try a non-SMP kernel tonight to see if that does
anything.  The other thing that is tickling my mind is the shared
interrupts, USB, SCSI, and Network card all sharing the same one.  I
understand this is much more common now, but the problem looks similar
to a slowly or mis-handled interrupt.  Anyone know how to force USB to
it's own interrupt?

-JSP