Hello, So. I tryed your patch with and without shading calibration :
with shading : same as bevor but calibration is now 4s long (see http://ggastebois.free.fr/lide90_snoop/no_shading.jpg and http://ggastebois.free.fr/lide90_snoop/no_shading.txt) without shading : image with some vertical lines (but ve can see the dinausore). Calibration is 4s long (see http://ggastebois.free.fr/lide90_snoop/shading.jpg and http://ggastebois.free.fr/lide90_snoop/shading.txt) Regards Guillaume Pierre Willenbrock a ?crit : > Pierre Willenbrock schrieb: >> 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... >> > > obviously, in cvs, while thinking i'd only put the power-mode changes > in.. The needed change is a one liner.. > > This should compile, but i don't know if it works. The shading > calibration should still be commented out. offset_calibration, > gain_calibration and led_calibration might work. > > Regards, > Pierre >