[sane-devel] Canoscan 4400F driver - update

m. allan noah kitno455 at gmail.com
Sat Oct 17 12:07:44 UTC 2009

sounds good. the first time you get image data is really a rush!


On Fri, Oct 16, 2009 at 6:47 PM, Andreas Robinson <andr345 at gmail.com> wrote:
> Hi folks,
> I've been busy working on a driver for the Canoscan 4400F for a good
> while and thought it best to come out with an update in case someone
> wonders whether I dropped off the planet.
> Yesterday, I received some unexpected help from Wim Brul, (Thanks
> again!) and was finally able to get the damned contraption to send
> images properly!
> The attached image should give you an idea how far along it is. (Or isn't.)
> Basically, I have a good grasp of how the scanner works, but there's
> still a lot of work to be done on the actual driver.
> The curious can visit http://github.com/andr345/gl843driver where I'm
> dumping my code at irregular intervals.
> (The interesting files are gl843_*.c)
> It is a standalone test driver, where I've experimented with accessing
> the scanner registers by name, instead of by I/O address and bit
> number. It's *very* convenient, but so different from the current
> Genesys driver that I'm doubting whether it can ever be merged with
> it.
> Anyhow, back to work! If you have questions or opinions, I'll be happy
> to answer them.
> Cheers,
> Andreas
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