[sane-devel] Canon LiDE 90

[Pierre Willenbrock]

Guillaume Gastebois schrieb:
> Hello,
> 
> I see that reg[2] was like 0x07. So INVOP was still set !!!
> I comment out offset_calibration in genesys_flatbed_calibration, set 
> reg[2] to 0x03, and I get a black image with a gray vertical line in the 
> middle !!!
> I try to reenable offset_calibration and I get : 
> http://ggastebois.free.fr/lide90_snoop/toto_10_0_0_invop_0.jpg
> In the central vertical line we can see a piece of my dinosause not 
> reverted !!! I think this works. And good news : the frontend seems to 
> be (or to be compatible) with a wolfson wm8199.
> 
> If you remember, this gray line is on the vertical of the small black 
> piece (in calibration area). So calibration is better with black area !!
> 

hmm. the shading calibration currently needs some black to work. But
good news. Now, where did i put that alternative offset_calibration code...

Regards,
  Pierre