[sane-devel] CanoScan 8800f on Genesys backend

[m. allan noah]

That's not how it works. The scanners are supported by two different
backends because they have different chips inside, and speak different
protocols. You'll need to add button support to the pixma backend, or
change scanners.

allan

On Thu, Apr 25, 2019 at 3:56 AM Patrick Menschel <menschel.p at posteo.de> wrote:
>
> Hi,
>
> I'm new to the mailing list and to SANE as well.
>
> I'd like to ask if there is documentation / guide how to add new devices
> to the Genesys backend?
>
> I'm facing the problem to get a CanoScan 8800f working on a headless
> Raspberry Pi while using Scanbuttond to start different scan mode scripts.
>
> As the CanoScan 8800f currently uses the PIXMA backend, it is limited to
> 2 buttons and one is the on/off button, so no luck with that.
>
> On the other hand, I tested the setup with a Canon Lide 220 that already
> uses the Genesys backend and it worked exceptionally well.
>
> For the Genesys backend, the CanoScan 8400f, the little brother of the
> 8800f, is already included in backends/backend/genesyy_devices.c .
>
> So the most promising solution would be to add the 8800f to the Genesys
> backend instead of PIXMA.
>
> Thanks and Best Regards,
> Patrick Menschel
>
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