[sane-devel] CanoScan D1250U2
24 Jan 2003 23:54:54 +0100
I saw the recent posting by Roland Jansen regarding the D1250U2 scanner.
If nobody is currently working on this driver, I may try to work on it.
It didn't open my D1250U2 scanner to check what is inside, but I think
this is the way Roland found his information (?).
Unfortunatly, there is no datasheet for the SQ009 on the WEB (the only
thing I found was a PCB schematic/eng spec from Philips to build their
own scanner - this SQ chip needs very few peripheral components !).
I must admit that I have no experience in SANE development but I did
some network-protocol reverse engineering, and USB sniffy does not seem
that different. Looking at canonscanner.sourceforge.net sourcecode
(1220U), it seems that many things relies on :
- the register list
- the register access protocol
I believe that the register list is extremely dependent of the SQ009
chip (do we know - and have drivers for - products which use a SQ00X
chip ? Checking for backward compatibility might help).
Do you think that the R/W Protocol can be completely different from
other canoscan products ?
Thanks in advance,