I don't know how to write a backend. ;-(
How can I help to find out which chipset it uses?
see:
http://www.sane-project.org/contrib.html
which provides some tips to look within the documentation/drivers
supplied with the scanner.
When there is a lack of documentation about a scanner, the person who
chooses to develop
might use some scans from an OS that does have a working scanner
driver. The usb bus
spy program (usbsnoopy) logs the commands and replies that are on the bus
Then for each type of scan resolution, the commands must be created to
duplicate
those commands. The process is quite long and involved for the developer.
Many scanners have backends from this technique.
If you do find a developer, (s)he should post progress to this
sane-devel list.
regards,
Gerald
