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Bug 29506 - last sane-backends will not work for canon canoscan 2700F filmscanner.
Summary: last sane-backends will not work for canon canoscan 2700F filmscanner.
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: New packages (show other bugs)
Hardware: All Linux
: Highest major (vote)
Assignee: Patrick Kursawe (RETIRED)
Depends on:
Reported: 2003-09-24 06:04 UTC by Sigurd Stordal
Modified: 2004-08-30 10:58 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---

This patch will remove focus controll from canoscan 2700F. (canon_fs27100.patch,1.89 KB, patch)
2003-09-24 06:06 UTC, Sigurd Stordal
Details | Diff

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Description Sigurd Stordal 2003-09-24 06:04:07 UTC
The focus controll has been screwd up from the 1.0.11 to 1.0.12 release, so
focus controll has to be removed for this scanner.
Comment 1 Sigurd Stordal 2003-09-24 06:06:52 UTC
Created attachment 18260 [details, diff]
This patch will remove focus controll from canoscan 2700F.

This patch should correct the error that makes the canoscan2700F scanner from
Comment 2 Sigurd Stordal 2003-09-24 06:15:52 UTC
The proposed patch will have to be applied recursively.
Have to tell which file to patch, or patch will think it should patch a canon_temp.c file. My mistake but this is the first patch I've ever made. maybe someone can clean it up.
Comment 3 Patrick Kursawe (RETIRED) gentoo-dev 2003-09-24 07:40:07 UTC
Your patch doesn't look like it was made against the sources used in sane-backends-1.0.12-r1 - there I find

   864        dev->info.can_focus = SANE_TRUE;
   879        dev->info.can_focus = SANE_TRUE;
   894        dev->info.can_focus = SANE_FALSE;
   909        dev->info.can_focus = SANE_FALSE;
   924        dev->info.can_focus = SANE_FALSE;

whereas your patch assumes that the last three lines have SANE_TRUE by default.
Could you please verify this and give me some hint where I can read that this is indeed a known problem of 1.0.12?  

Don't understand me wrong, I believe you that you have a problem with focus control - I would just like to know if this is a general issue or just personal bad luck of yours :-)
Comment 4 Patrick Kursawe (RETIRED) gentoo-dev 2003-09-26 08:21:40 UTC
Ulrich Deiters <ukd@xenon.pc.Uni-Koeln.DE> told me he wants to check this
problem during the weekend... maybe with a bit luck we will get a problem
solving patch, not just a workaround. Who knows?

Setting this to NEEDINFO until then.
Comment 5 Patrick Kursawe (RETIRED) gentoo-dev 2003-10-07 23:13:14 UTC
Wasn't Ulrichs fault but mine... adding -r2 to portage with the patch for
the canon scanner applied.
Comment 6 Sigurd Stordal 2004-08-30 07:43:28 UTC
The backend for the canoscan 2700F has aparantly not been changed, in the sourcefile canon.c it says its a sane-backend-1.0.12, so this problem still exist in the newest sane-backend.
Comment 7 Patrick Kursawe (RETIRED) gentoo-dev 2004-08-30 10:58:33 UTC
Thanks for the hint. Bringing back the patch for .14-r5 - please give it a try.
Next time please re-open a bug if the problem still/again exists. A single notification e-mail gets lost very easily, an assigned open bug is harder to miss.