[sane-devel] sane related uvdev rule prevents HP printer from working

[Ulf Zibis]

Hi,

I had a long journey to make my HP printer work, see here:
https://forum.ubuntuusers.de/post/9107213/ (German)

The solution was to deaktive a sane related uvdev rule
/lib/udev/rules.d/99-saned.rules:
# $Id: 99-saned.rules 218 2016-02-19 18:48:21Z wimalopaan $
#
#  scanbd - KMUX scanner button daemon
#
#  Copyright (C) 2008 - 2016  Wilhelm Meier (wilhelm.meier at fh-kl.de)
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
#

# change group to saned for sane devices
# needed for saned to get scanner access

ENV{libsane_matched}=="yes", GROUP="saned"

What is the use of this rule?
What can break, if I disable it?
(sudo mv /lib/udev/rules.d/99-saned.rules
/lib/udev/rules.d/99-saned.rules.bak)

-Ulf

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