[sane-devel] improve scanbd for Debian

[Rolf Leggewie]

Hello group,

I'm happy to manage to get scanbd into Debian and replace scanbuttond.
The package still has many rough edges and even for me as Maintainer
does not work perfectly.  My local setup includes a Canon LiDE 35
connected over USB. scanbd generally works fine when called straight
from the command line as "scanbd -f" even for an ordinary user.  Buttons
are recognized and scripts called.

I recently added the upstream init script to the package (patched to
include a call to status) and that doesn't seem to work properly.  My
machine runs Ubuntu Trusty and sysvrc.  scanbd seems to start up fine
from init as verified with "ps faux".

saned    21838  0.0  0.0  33252  1552 ?        Sl   13:35   0:00
  \_ /usr/sbin/scanbd -c /etc/scanbd/scanbd.conf

But there is no reaction to button presses on the scanner.  I have
uploaded one log with successful button presses when the program is
started directly by the user and one where the program is started from
init and no reactions occur. Hopefully someone can spot something in
there or otherwise suggest something for triage to move this along.

I also reported this as https://bugs.launchpad.net/bugs/1401389

The attached tar-file contains the log from the console in
scanbd.console-log and from syslog in scanbd-syslog.log

First is a startup via init (19:00:53 to 19:07:46, lines 71 to 503).
This is followed by a call to scanbd straight from the user command line
(19:08:04 to 19:08:56, lines 504 to 1999). The Canon device is found in
both cases (19:07:42, line 84 and 19:08:07, line 517). A "file" button
press is registered at 19:08:42 that triggers the copy.script (line
1655). Line numbers refer to the syslog since only that one has time-stamps.

Regards

Rolf
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