initial commit

buttonpressed.sh

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+#!/bin/sh
+
+# daemon's name
+DAEMON=scanbd
+
+# securely create temporary file to avoid race condition attacks
+TMPFILE=`mktemp /tmp/$DAEMON.XXXXXX`
+
+# lock file
+LOCKFILE="/tmp/$DAEMON.lock"
+
+# device name
+DEVICE="$2"
+
+# destination of the final image file (modify to match your setup)
+DESTINATION="/home/manolis/Desktop/scanned_image.jpg"
+
+# remove temporary file on abort
+trap 'rm -f $TMPFILE' 0 1 15
+
+# function: create lock file with scanbuttond's PID
+mk_lock() {
+    pidof $DAEMON > $LOCKFILE
+}
+
+# function: remove temporary and lock files
+clean_up () {
+    test -e $LOCKFILE && rm -f $LOCKFILE
+    rm -f $TMPFILE
+}
+
+# function: check if lock file exists and print an error message with zenity (if it's installed)
+chk_lock() {
+    if [ -e $LOCKFILE ]; then
+        if [ -x /usr/bin/zenity ]; then
+            zenity --display :0.0 --title="Scanbuttond" --error 
+            --text="Another scanning operation is currently in progress."
+        fi
+        exit 1
+    fi
+}
+
+# function: the actual scan command (modify to match your setup)
+scan() {
+    scanimage --device-name "$DEVICE" --mode Color --resolution 300 
+            --depth 8 -x 215 -y 297 > $TMPFILE
+}
+
+case $1 in
+    1)
+       # button 1 (scan): scan the picture & save it as $DESTINATION
+       chk_lock; mk_lock; scan; convert $TMPFILE -quality 85 -quiet $DESTINATION; clean_up
+       ;;
+    2)
+       # button 2 (copy): scan the picture, convert it to postscript and print it
+       chk_lock; mk_lock; scan; convert $TMPFILE ps:- | lpr; clean_up
+       ;;
+    3)
+       # button 3 (mail): scan the picture, save it as $DESTINATION and send it as an e-mail
+       # attachment with Evolution
+       chk_lock; mk_lock; scan; convert $TMPFILE -quality 85 -quiet $DESTINATION
+       evolution --display=:0.0 "mailto:?attach=$DESTINATION"; clean_up
+       ;;
+    4)
+       # button 4 (web): unconfigured
+       echo "button 4 has been pressed on $2"
+       ;;
+esac

readme.md

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+## Setup
+
+### Sane
+
+```bash
+sudo apt intall sane-utils
+# add user to scanner group. Logout after this command
+sudo adduser zero scanner
+# find scanner ids
+lsusb
+# copy and modify udev example file to udev folder
+sudo cp udev-example/55-libsane.rules /etc/udev/rules.d/
+# restart udev service, than unplug and replug scanner
+sudo service udev restart
+# now this should run without sudo
+scanimage -L
+```
+
+### Scanner button
+
+```bash
+sudo apt install scanbd
+# create script directory
+sudo mkdir /etc/scanbd/scripts
+# copy script 
+sudo cp scannerbutton.sh /etc/scanbd/scripts/
+# backup original plustek config
+sudo mv /etc/scanbd/scanner.d/plustek.conf /etc/scanbd/scanner.d/plustek.conf.orig
+# copy modified plustek.conf
+sudo cp scanner.d/plustek.conf /etc/scanbd/scanner.d/
+# restart scanbd
+sudo service scanbd restart
+```
+
+## Scanning
+
+```bash
+scanimage -x 210 -y 297 --format=png --resolution  150 > /media/miniretek/scanner/scan-`date +%F-%H%M`.png
+```
+
+## Acknoledgements
+
+scannerbutton.sh based on the script found here: https://www.linux.com/news/how-configure-scanners-buttons-linux/

scanner.d/plustek.conf

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+/*
+ * $Id: snapscan.conf 154 2013-01-06 07:24:56Z wimalopaan $
+ *
+ *  scanbd - KMUX scanner button daemon
+ *
+ *  Copyright (C) 2008 - 2013  Wilhelm Meier (wilhelm.wm.meier@googlemail.com)
+ *
+ *  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.
+ */
+
+device plustek {
+        
+        # the device matching string
+        filter = "plustek" # regex
+
+        # the device description
+        desc = "Canon N650"
+
+        action b0 {
+              filter = "^button.*0.*"
+              numerical-trigger {
+                        from-value = 0
+                        to-value   = 1
+                }
+              desc   = "Button0"
+              script = "scannerbutton.sh"
+        }
+        action b1 {
+              filter = "^button.*1.*"
+              numerical-trigger {
+                        from-value = 0
+                        to-value   = 1
+                }
+              desc   = "Button1"
+              script = "scannerbutton.sh"
+        }
+        action b2 {
+              filter = "^button.*2.*"
+              numerical-trigger {
+                        from-value = 0
+                        to-value   = 1
+                }
+              desc   = "Button2"
+              script = "scannerbutton.sh"
+        }
+
+}
+

scannerbutton.sh

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+#!/bin/sh
+
+# Buttons:
+# b0:   E-mail
+# b1:   Copy
+# b2:   Scan
+
+echo $SCANBD_ACTION
+
+# daemon's name
+#DAEMON=scanbd
+
+# securely create temporary file to avoid race condition attacks
+TMPFILE=`mktemp /tmp/$DAEMON.XXXXXX`
+
+# lock file
+LOCKFILE="/tmp/$DAEMON.lock"
+
+# device name
+#DEVICE="$2"
+
+# destination of the final image file (modify to match your setup)
+DESTINATION="media/miniretek/scanner/scan-`date +%F-%H%M`.png"
+
+# remove temporary file on abort
+trap 'rm -f $TMPFILE' 0 1 15
+
+# function: create lock file with scanbuttond's PID
+mk_lock() {
+    pidof $DAEMON > $LOCKFILE
+}
+
+# function: remove temporary and lock files
+clean_up () {
+    test -e $LOCKFILE && rm -f $LOCKFILE
+    rm -f $TMPFILE
+}
+
+# function: check if lock file exists and print an error message with zenity (if it's installed)
+chk_lock() {
+    if [ -e $LOCKFILE ]; then
+        if [ -x /usr/bin/zenity ]; then
+            zenity --display :0.0 --title="Scanbuttond" --error 
+            --text="Another scanning operation is currently in progress."
+        fi
+        exit 1
+    fi
+}
+
+# function: the actual scan command (modify to match your setup)
+scan() {
+    #scanimage --device-name "$DEVICE" --mode Color --resolution 300             --depth 8 -x 215 -y 297 > $TMPFILE
+    scanimage -x 210 -y 297 --format=png --resolution 150 > $TMPFILE
+}
+
+case $SCANBD_ACTION in
+    "b0")
+       # button 1 (scan): scan the picture & save it as $DESTINATION
+       #chk_lock; mk_lock; scan; convert $TMPFILE -quality 85 -quiet $DESTINATION; clean_up
+        echo "email button pressed"
+       ;;
+    "b1")
+       # button 2 (copy): scan the picture, convert it to postscript and print it
+       #chk_lock; mk_lock; scan; convert $TMPFILE ps:- | lpr; clean_up
+        echo "copy button pressed"
+       ;;
+    "b2")
+       # button 3 (mail): scan the picture, save it as $DESTINATION and send it as an e-mail
+       # attachment with Evolution
+#       chk_lock; mk_lock; scan; convert $TMPFILE -quality 85 -quiet $DESTINATION
+#       evolution --display=:0.0 "mailto:?attach=$DESTINATION"; clean_up
+        echo "scan button pressed"
+       ;;
+esac

scannerbutton.sh.1

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+#!/bin/bash
+
+# Buttons:
+# b0:   E-mail
+# b1:   Copy
+# b2:   Scan
+
+echo $SCANBD_ACTION

udev-example/55-libsane.rules

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+ATTRS{idVendor}=="04a9", ATTRS{idProduct}=="220d", MODE="0660", GROUP="scanner", ENV{libsane_matched}="yes"