[sane-devel] Canon LiDE 80 (2nd try)

[Gerhard Jaeger]

On Wednesday 13 February 2008 15:42:12 Reinhard Biegel wrote:
> On Tuesday, 12. February 2008, Stefan Lucke wrote:
> > > Register 0x6b is very different between GL841/2 and GL843. But the
> > > documentation around the pins controlled with 0x6b is a bit lacking.
> >
> > So we need to write reserved I/O bits, (0x6b) need to write to undefined
> > gamma addresses (0x5b/5c - 0x0c00). Thats really magic. Both areas
> > are defined for GL843 but not for GL841/2.
>
> Indeed, very strange.
>
> @Gerhard Jaeger: Were did you get the bcdValues from? Can we trust them?

Yup, we can. Got that from the sources of a Windoze driver...

> Is there a possibility that there is a "GL841b" revision of the chip with
> lower bcdValue but being derived from GL843?

I don't think so.

- Gerhard