> 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