[sane-devel] GL646 vs GL646_HP

[stef]

Le Wednesday 19 March 2008 21:42:46 Tourneur Henry-Nicolas, vous avez écrit :
> Hello everybody,
>
> I'm running a Scanjet 3690 based on a GL646_HP.
> I see that Sane doesn't support this scanner but do have a GL646 support.
> So my question is : what's the difference bethween both chipset ?
>
> Where can I find doc about GL646_HP ? (I found some pretty good one for
> GL646 but not the HP one).
>
> If some code/driver have to be writen, must it be included into
> genesys_gl646.c (i think), or is it a separate driver ?
>
> TIA.
> --
> Tourneur Henry-Nicolas

	Hello,

	the HP2400 is also reported to be a GL646_HP, and there is some bits of code 
to that makes it work up to warmup. The scanjet 2300c is also based on this 
ASIC. So the right place to add support for it would be the genesys backend, 
in the gl646 support.
	I don't other doc than the one for the GL646. There are informations on how 
to add a scanner for gl646 parts at http://stef.dev.free.fr/sane/genesys . It 
relies on recording USB logs of the scanner operating under windows, then 
analyzing them to understand what is going on.

Regards,
	Stef