Network Scanning With Sane

This page describes how to enable Network Scanning using a USB scanner or multi-function printer in Merlin using S.A.N.E. (Scan Access Now Easy).

Requirements:

• A router running Merlin duh...
• USB Stick with optware configured [instructions] (https://github.com/RMerl/asuswrt-merlin/wiki/Initialize-OPTWARE)
• A Multi-Function USB Scanner or Multi-Function Printer
• Router is accessible via ssh

Router Setup Instructions:

• ssh to router and type opkg install sane-backends sane-frontends sane-libs dbus xinetd
• create file /opt/etc/xinetd.d/saned and put the following content:
  service saned
  {
  socket_type = stream
  server = /opt/sbin/saned
  protocol = tcp
  user = admin
  group = root
  wait = no
  disable = no
  }
• edit file /opt/etc/dbus-1/system.conf and replace the following line:
  <user>root</user>
  with
  <user>admin</user>
• Reboot router and make sure that dbus and xinetd are running (this step might not be required if you know how to start the services manually from /opt/etc/init.d)

Special Hardware Instructions

HP:

• opkg --force-overwrite install hplip

Test functionality:

• type: scanimage -L, your device should be displayed
• type: scanimage --test, your device should start testing and display status

On The Client Side (Linux):

• install the sane package. This changes by distribution
• edit file /etc/sane.d/net.conf and add the ip or hostname of the router
• test the same way with the scanimage utility

On The Client Side (Windows):

• use SaneTwain [http://sanetwain.ozuzo.net] (http://sanetwain.ozuzo.net)
• on start-up put the router's ip/host

Suggestions are always welcomed.