[sane-devel] Using "scanimage" under Gentoo

[Dr Rainer Woitok]

Bruce,

On Thursday, 2019-12-05 06:38:52 +1000, you wrote:

> ...
> I have put together a gentoo overlay for sane-backends with version 
> 1.0.28. Can you test this?
> 
> https://github.com/brulzki/sane-overlay

I followed the installation instructions in your "README.md" file, first
created file  "/etc/portage/repos.conf/sane-overlay.conf",  and then ran
the command "emaint sync -r sane-overlay".   However this command seemed
to run in an endless loop:

   # emaint sync -r sane-overlay
   >>> Syncing repository 'sane-overlay' into '/var/db/repos/sane-overlay'...
   /usr/bin/git clone https://github.com/brulzki/sane-overlay.git .
   Cloning into '.'...
   remote: Enumerating objects: 42, done.
   remote: Counting objects: 100% (42/42), done.
   remote: Compressing objects: 100% (30/30), done.
   remote: Total 42 (delta 7), reused 42 (delta 7), pack-reused 0
   Unpacking objects: 100% (42/42), done.
   === Sync completed for sane-overlay
   Reading Portage settings...
   Building database (/var/cache/eix/portage.eix)...
   [0] "gentoo" /var/db/repos/gentoo/ (cache: metadata-md5-or-flat)
        Reading up to 168 categories of packages...Finished
   [1] "sane-overlay" /var/db/repos/sane-overlay (cache: parse|ebuild*#metadata-md5#metadata-flat#assign)
        Reading up to 168 categories of packages...Finished
   Applying masks...
   Calculating hash tables...
   Writing database file /var/cache/eix/portage.eix...
   Database contains 19386 packages in 168 categories
   >>> Syncing repository 'sane-overlay' into '/var/db/repos/sane-overlay'...
   /usr/bin/git fetch origin
   Already up to date.
   === Sync completed for sane-overlay
   Reading Portage settings...
   Building database (/var/cache/eix/portage.eix)...
   [0] "gentoo" /var/db/repos/gentoo/ (cache: metadata-md5-or-flat)
        Reading up to 168 categories of packages...Finished
   [1] "sane-overlay" /var/db/repos/sane-overlay (cache: parse|ebuild*#metadata-md5#metadata-flat#assign)
        Reading up to 168 categories of packages...Finished
   Applying masks...
   Calculating hash tables...
   Writing database file /var/cache/eix/portage.eix...
   Database contains 19386 packages in 168 categories
   >>> Syncing repository 'sane-overlay' into '/var/db/repos/sane-overlay'...
   /usr/bin/git fetch origin
   Already up to date.
   === Sync completed for sane-overlay
   Reading Portage settings...
   Building database (/var/cache/eix/portage.eix)...
     .
     .
     .

I finally killed it with "Ctrl-C".  I then added the line

   >=media-gfx/sane-backends-1.0.28 ~amd64

to "/etc/portage/package.accept_keywords/local",  so "emerge" would pick
the new version, and ran

   $ sudo emerge --ask --deep --newuse --update @world

     ... plenty of error free output skipped ...

   $ scanimage --version
   scanimage (sane-backends) 1.0.28; backend version 1.0.28
   $ scanimage '--batch=.%03d0.png' --batch-increment 1 --batch-print --batch-start 1 --device pixma:MX880_new-host --source 'Automatic Document Feeder' --format png --mode Color --resolution 300 -l 3 -t 0 -x 210 -y 297
   Scanning infinity pages, incrementing by 1, numbering from 1
   Scanning page 1
   Scanned page 1. (scanner status = 5)
   Scanning page 2
   scanimage: sane_read: Document feeder out of documents
   Scanned page 2. (scanner status = 7)
   Batch terminated, 2 pages scanned
   $

But the document feeder  wasn't out of documents,  the scanner was busy,
and it's  WiFi LED was  blinking forever.   I had to switch  the scanner
off.

So I think I need some instructions for debugging "scanimage".  Anybody?

Sincerely,
  Rainer