SvenFestersen/raspi_epson_scan.md

## raspi_epson_scan.md

      
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    Install a Scanner Server for the Epson Perfection V330 on Raspberry Pi

This guide is for raspbian wheezy and based on this blog post: https://www.raspberrypi.org/forums/viewtopic.php?f=36&t=109169
Prepare sane daemon and network access

Install:
sudo apt-get install xinetd sane-utils

To make saned start automatically at boot, edit /etc/default/saned to contain:
# Defaults for the saned initscript, from sane-utils

# Set to yes to start saned
RUN=yes

# Set to the user saned should run as
RUN_AS_USER=saned

Enable sane network service by creating /etc/xinetd.d/sane-daemon:
service sane-port
        {
          socket_type = stream
          server = /usr/sbin/saned
          protocol = tcp
          user = saned
          group = saned
          wait = no
          disable = no
        }

Configure allowed clients by editing /etc/sane.d/saned.conf:
...
## Access list
# The hostname matching is not case-sensitive.
192.168.178.0/24
...

Start saned:
sudo /etc/init.d/saned start

Configure multi-arch support

Some parts of the Epson scanner driver can not be compiled on the Raspberry's ARM platform. It is therefore necessary to enable multi-arch support and emulate the i386 platform via qemu. The procedure is taken from c't magazine 18/2015.
To enable multi-arch:
sudo dpkg --add-architecture i386

Add i386 repositories to /etc/apt/sources.list.d/i386.list:
deb [arch=i386] http://ftp.de.debian.org/debian stable main contrib non-free
deb [arch=i386] http://ftp.debian.org/debian/ wheezy-updates main contrib non-free
deb [arch=i386] http://security.debian.org/ wheezy/updates main contrib non-free

Add architecture hints to existing repository lists by inserting [arch=armhf] between "deb" and the URL in /etc/apt/sources.list:
deb [arch=armhf] http://mirrordirector.raspbian.org/raspbian/ ...

Update sources:
sudo apt-get update

Install qemu and automatic i386 emulation:
sudo apt-get -y install qemu-user binfmt-support

Repackage Epson Drivers for Multi-arch

Download and extract iscan-data sources:
wget https://download3.ebz.epson.net/dsc/f/03/00/03/61/59/646738a219f7354bf3268897385f6ce48c0776bf/iscan-data_1.36.0-1.tar.gz
tar -xvf iscan-data_1.36.0-1.tar.gz
cd iscan-data-1.36.0

Add multi-arch support by editing debian/control and debian/control.in and adding the following line after Architecture: All:
Multi-Arch: foreign

Install build dependencies:
sudo apt-get -y install cdbs xsltproc dpkg-dev debhelper

Build the new package:
dpkg-buildpackage -tc

The parent directory now contains the package iscan-data_1.36.0-1_all.deb. Install it by running
sudo dpkg -i iscan-data_1.36.0-1_all.deb

Download and extract iscan:
wget https://download3.ebz.epson.net/dsc/f/03/00/03/61/59/a3f8b8d60e8702a1c5bf3977d018cc2336e308a8/iscan_2.30.1-1.tar.gz
tar -xvf iscan_2.30.1-1.tar.gz
cd iscan-2.30.1

Edit debian/control and debian/control.in as described above. And additionally append armhf to the Architecture line, so it looks like this:
Architecture: i386 amd64 armhf
Multi-Arch: foreign

Also edit the configure script. Find the lines
{ echo "$as_me:$LINENO: checking whether to build the frontend application" >&5
echo $ECHO_N "checking whether to build the frontend application... $ECHO_C" >&6; }
# Check whether --enable-frontend was given.
if test "${enable_frontend+set}" = set; then
  enableval=$enable_frontend; if test "x$enable_frontend" != xno; then
		  case $host_cpu in
		    i?86) :
			  ;;
		    x86_64) :
			  ;;
		    *)	  { { echo "$as_me:$LINENO: error: requires IA32 architecture" >&5
echo "$as_me: error: requires IA32 architecture" >&2;}
   { (exit 1); exit 1; }; }
			  ;;
		  esac
	       fi
else
  case $host_cpu in
	         i?86)   enable_frontend=yes ;;
		 x86_64) enable_frontend=yes ;;
		 *)      enable_frontend=no  ;;
	       esac
fi

and replace them by
 enable_frontend=no

Install dependencies:
sudo apt-get install -y libsane-dev libltdl7-dev libgtk2.0-dev libjpeg-dev libgimp2.0-dev libtiff4-dev libxml2-dev libusb-1.0-0-dev

Rebuild the package:
dpkg-buildpackage -tc