[sane-devel] Plustek OpticPro 1212U / HP ScanJet 4200C

Albert ARIBAUD albert.aribaud@free.fr
Tue, 25 Nov 2003 21:50:41 +0100


Le mar 25/11/2003 à 19:01, Jaeger, Gerhard a écrit :

> The ASIC is from Plustek and has been introduced in the PT12 parallel-port
> model, also some Genius Scanner... The bridge is GeneSys Logic GL640  chip.

OK, got all the datasheets then (took the 640 out of pure luck).

> Well, probably we should share the code I started with...
> I'll try and setup some info on the plustek-backend download site
> at www.gjaeger.de - I'll keep you informed on that. In the meantime,
> you should check the general SANE-docs for information 'bout writing
> backends...

I'll be going there then.

> > I've seen there is another scanner with the same structure, the HP
> > Scanjet 4200c; anyone here who helped develop it?
> What do you mean - same structure? Do you think this HP scanner
> also includes the P98003? I don't think so. AFAIK, the Plustek U12
> (the early series) and a Genius are using the same HW.

No, I just meant that this scanner was also designed from an existing
parallel port scanner model by simply :) adding a parallel-to-usb chip.
So I thought, maybe the design(er) of the SANE backend for this scanner
will be helpful.

(On the other hand, maybe another way to go would be writing a generic
kernel module for the GL640, providing a pseudo lp interface; then the
existing parallel plustek backend might fit above that. But I don't know
enough about the SANE design and structure to tell yet.)

Thanks in advance anyway !
Albert ARIBAUD <albert.aribaud@free.fr>