[sane-devel] New backend for a not yet exisiting device

[Torsten Wagner]

Dear Allan,
thanks for your answer.

> there is nothing standard about any of these protocols except maybe
> the ones based on SCSI could be called a 'half-standard'

O.k., I see
 
>  Which manufacture
> > provides most information? And which one welcomes projects like 
> this (resp.
> > opensource in general) without let the dogs resp. lawyers out.
> 
> most of the chip makers who would give you specs dont make a twain
> driver for you to 'repurpose'. i find it funny to think that you would
> write code to use an fpga to emulate a machine, just to avoid writing
> some code :)

For sure I can (try to) write a backend for our special needs. I just thought if there is an emulation of a specific IC I can "install" the device either by the original TWAIN drivers or by the already exisiting sane backend. I thought this might make it more flexible. I can caputer measurements e.g. by all programs which offers twain resp. sane support.

> 
> ask yourself seriously, is anyone ever going to want to 'aquire' a
> TWAIN image from this thing to insert into a document or something?
> most labs i have ever worked with moved files around on a flash drive
> to achieve the same effect.

The scanner will have the same size as an original one and we like to demonstrate the easieness of usage as a "standard" benchtop device even outside of laboratory environments.  Thus, the idea to create a device which acts like  a normal scanner.

Best regards,

Torsten
 
 
> allan
> 
> >
> > At Montag, 15. September 2008 17:46:46, m. allan noah wrote:
> >> I think you would want to stick with lower level (stupid) machines
> >> that have chips from a third party which gives away 
> documentation on
> >> their website. Something like rts* gt*, genesys backends should be
> >> useful. If you sensor sled is going to weigh more than the 
> original,>> or if you use a different motor, you will probably want 
> to use a
> >> scanner that gets its motor acceleration tables from the driver
> >> (genesys?)
> >>
> >> allan
> >>
> >> On Mon, Sep 15, 2008 at 11:22 AM, Torsten Wagner
> >>
> >> <torsten.wagner at fh-aachen.de> wrote:
> >
> >
> >
> > --
> > ----------------------------------------------------
> > Dipl.-Ing. Torsten Wagner, MSc
> > University of Applied Sciences Aachen Campus Juelich
> > Institute for Nano- and Biotechnologies (INB)
> > Ginsterweg 1, D-52428 Juelich, Germany
> > Tel.: +49 241 600953215 or +49 2461 612466
> > Fax: +49 2461 600953235
> > Email: torsten.wagner at fh-aachen.de
> > and
> > Research Centre Juelich GmbH
> > Institute of Bio- and Nanosystems (IBN-2)
> > D-52425 Juelich
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> 
> 
> -- 
> "The truth is an offense, but not a sin"
>