[sane-devel] Visioneer 5800 backend

[Henning Meier-Geinitz]

Hi,

On Sun, Jun 29, 2003 at 07:01:09PM +0000, jollyprince@juno.com wrote:
> I'm interested in writing a backend for my Visioneer 5800.  I've
> written some C code in my lifetime but that's about all the
> prerequisites that I have to bring to the project.

That and a lot of patience is enough :-)

Please show us the output of "cat /proc/bus/usb/devices" when the
scanner is plugged in.

> I've opened up the box but couldn't get to the chipset for fear of
> damaging the wiring harness.  Any suggestions about getting the
> maximum info about the product.  I'm told it's a LM9832 chipset.  Can
> anyone confirm or deny this?

Just try it. There is a tool to find out about some known chipsets:
http://www.meier-geinitz.de/sane/check-usb-scanner/

> Can anyone recommend an example of a working backend that would be
> similar to what a Visioneer backend might look like?

If it's really a LM9832, adding support to the plustek backend is the
way to go. But i doubt that it's really that chipset. Our database
says "E5" chipset, whatever that means.

> I've studied a bunch of stuff and feel lost in an information
> explosion.  Any tips and shortcuts that are applicable would be
> greatly appreciated!  Thanks in advance! 

There have been wuite some discussion about how to start writing a
backend during the last week so reading the archive of sane-devel may
help to get started.

Bye,
  Henning