[sane-devel] wrong colors

[Karsten Festag]

Nice to hear! The if-statement was a workaround for a buggy firmware of a=
=20
scanner of your type, so it seems that this was a unique failure of that=20
single device (or your scanner is unique not having this firmware bug ;-)
Anyway I think I should add an config option in the next release for this=
=20
case.

Happy scanning!

Karsten


Saturday 01 March 2003 00:09, Christoph Knauer wrote:
> Hi Karsten,
>
> is this file only the source for "libsane-microtek2? Could i compile th=
e
> backend on another mashine, and copy only the microtek2-files on my
> scanning system?
>
> I tried it in this way, after changing as you wrote. It seems to work
>
> :-)
>
> Bye, Christoph
>
> Am Die, 2003-02-25 um 22.48 schrieb Karsten Festag:
> > Hi Christoph,
> > I checked your logfiles and I have an idea where the problem might be=
=2E If
> > my theory is correct, all pictures with an even number of pixels in w=
idth
> > are correct and all with an odd width have wrong colors. In the statu=
s
> > line of xsane you see the dimensions if the scan also in pixels, you
> > could use this to check my theory.
> > To (hopefully) solve this problem we will have to make a little
> > modification to the source code and then to recompile SANE. If you li=
ke
> > to try this: here is the change you could make:
> >
> > in the file 'microtek2.c' in the 'sane-backends/backend' directory of=
 the
> > sources please find the function 'check_inquiry'. There are the follo=
wing
> > lines:
> >
> >         case 0x91:
> >           *model_string =3D "ScanMaker X6 / Phantom 636";
> >           /* The X6 indicates a data format of segregated data in TMA
> > mode */ /* but actually transfers as chunky data */
> >           md->model_flags |=3D MD_DATA_FORMAT_WRONG;
> >           if ( md->revision =3D=3D 1.00 )
> >               md->model_flags |=3D MD_OFFSET_2;
> >           break;
> >
> > Please comment out the if-statement so that it looks like:
> >
> >         case 0x91:
> >           *model_string =3D "ScanMaker X6 / Phantom 636";
> >           /* The X6 indicates a data format of segregated data in TMA
> > mode */ /* but actually transfers as chunky data */
> >           md->model_flags |=3D MD_DATA_FORMAT_WRONG;
> >           /* if ( md->revision =3D=3D 1.00 )
> >               md->model_flags |=3D MD_OFFSET_2; */
> >           break;
> >
> > If you have some more questions ore comments - please ask, I hope I c=
an
> > answer sooner than this time.
> >
> > > Could be a problem with wrong group /dev/sg0 (the scanner) belongs =
to?
> > > I've a look, and /dev/sg0 was root.cdrecording (i think, k3bsetup
> > > changed it), but my cd-devices are sr0 and sr1, and they're working=
=2E
> >
> > That should be no problem. Otherwise you wouldn't be able to scan as
> > normal user, only as root.
> >
> >
> > Bye
> >
> > Karsten