Sane should work with that scanner judging from a few hits I saw searching google.
Here's a thread from sane-devel:
http://www.mostang.com/pipermail/sane-devel/2003-February/017856.html
> I have an epson perfection 1260 attached but I never even tried to get it to
> work. I think that the Epson would have more documented support than the
> handspring, so I think I will get that going first then that may shed some
> light on my USB situation.
>
> Stay tuned for details.
>
> anthony
>
> On Monday 28 April 2003 06:52 pm, Kevin Brown thought they were smart and
> wrote:
>
>>Is anything attached to the USB ports? I think those files are created
>>dynamically when devices are attached.
>>
>>
>>>It appears that my /dev/usb holds no devices. My USB controller is
>>>detected and installed. My (built-in) USB hub is detected but not
>>>installed so I have nothing to link to. Hmmm. This is going to take more
>>>work that I had anticipated. I will work on it and get back with y'all.
>>>
>>>anthony
>>>
>>>On Monday 28 April 2003 12:38 pm, Alan Dayley thought they were smart and
>>>
>>>wrote:
>>>
>>>>I point /dev/pilot to /dev/ttyUSB1. Don't forget to check the permission
>>>>settings on both ttyUSB0 and ttyUSB1. I don't quite understand how it
>>>>works but syncing a palm device uses both of those ports.
>>>>
>>>>Alan
>>>>
>>>>-------Original Message-------
>>>>From: tickticker <tickticker@cox.net>
>>>>Sent: 04/28/03 08:15 AM
>>>>To: plug-discuss@lists.plug.phoenix.az.us
>>>>Subject: /dev/pilot and Evolution
>>>>
>>>>
>>>>>Hello everyone,
>>>>
>>>>I recent came into posession of a handspring treo, and want to sync it
>>>>with
>>>>Evolution. I get an erro that /dev/pilot should pointot a usb serial
>>>>port.
>>>>Which port do I symlink to /dev/pilot?