sane-project-backends/README

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How to configure, build, and install SANE.
Quick install:
==============
./configure
make
make install
Prerequisites
=============
In order to build SANE, the following tools and libraries are required:
- GNU make: version 3.70 or newer
- ANSI C compiler: GNU C (gcc) is recommended for best performance,
but any ANSI-compliant compiler should do
- To build the graphical frontends (xscanimage and xcam), it is
necessary to have the GTK libraries (libgtk, libgdk, and
libglib) and associated header files installed. In
addition, if you want to use xscanimage from within GIMP,
you'll need to make sure libgimp (version 0.99.13 or newer)
and its header files are installed as well. The GTK libraries and
GIMP can be obtained from:
ftp://ftp.gimp.org/pub/
SANE should build on most Unix-like systems. Support for OS/2 is also
available. For more details look at the operating system specific
README.* files. For a detailed support matrix, see:
http://www.mostang.com/sane/sane-support.html
This table may be out of date. Please send any corrections or additions
to sane-devel@mostang.com together with your platform, os and version.
Configuration
=============
Simply invoke configure in the top-level directory. Besides the usual
GNU configure options, there are the following SANE specific options:
--disable-shared
Don't use shared libraries. Useful for debugging or when there
is a problem building shared libraries. This implicitly turns
on --disable-dynamic as well.
--disable-dynamic
Disable dynamic loading of backends (in the dll backend).
configure normally turns on dynamic loading when it
can find the appropriate header files and libraries
(<dlfcn.h> and -dl).
--enable-preload
Preload backends into DLL backend. This is useful for debugging,
when dynamic loading is unavailable, or to reduce runtime linking
overheads. If dynamic loading or shared libraries are unavailable
or disabled, this option is turned on automatically.
--enable-scsibuffersize=N
Specify the buffer size of the buffer for SCSI commands. The default
value is 131072 bytes (128 kb). This may be changed at runtime by
setting the environment variable SANE_SG_BUFFERSIZE to the desired
value. The option is Linux-only at this time.
--enable-scsibuffersize and SANE_SG_BUFFERSIZE have no effect for
the Mustek, Umax and Sharp backends. For these backends, the buffer
size is set automatically and/or can be specified in the backend's
configuration file. Please refer to the backend's man pages for
details.
In addition to these SANE-specific configuration options, there are
many standard-options. To get a description of available standard
option, invoke configure with option --help.
If you plan on debugging one of the SANE programs, we recommend to run
configure like this:
CFLAGS="-g -O -Wall" ./configure --disable-shared
For operating system specific information, look at the README.* files.
Build
=====
To build SANE, simply type "make" in the top-level directory.
Installation and Configuration
==============================
Once the build has finished, install SANE with "make install". By
default, this will place the SANE libraries in /usr/local/lib/, the
configuration files in /usr/local/etc/sane.d/, and the manual pages in
/usr/local/man/. The location of these directories can be overridden
with configure options; see "configure --help" for details.
Before running any SANE program, read the PROBLEMS file in this directory.
For information on configuring and trouble-shooting the various SANE
components, please refer to the manual pages and other documentation listed
below:
Regarding: Read:
----------------- ------------------------------------------
Frontends:
scanimage scanimage(1)
xscanimage xscanimage(1)
saned saned(1)
xcam xcam(1)
Backends for scanners:
Abaton sane-abaton(5)
AGFA Focus sane-agfafocus(5)
AGFA SnapScan sane-snapscan(5)
Apple sane-apple(5)
Artec sane-artec(5)
Avision sane-avision(5)
Canon sane-canon(5)
Nikon Coolscan sane-coolscan(5)
Epson sane-epson(5)
Fujitsu sane-fujitsu(5)
HP sane-hp(5)
Microtek sane-microtek(5)
Microtek SCSI-2 sane-microtek2(5)
Mustek sane-mustek(5)
Mustek parallel port sane-mustek_pp(5)
Plustek sane-plustek(5)
Ricoh sane-ricoh(5)
Sharp sane-sharp(5)
Siemens S9036 sane-s9036(5)
Siemens ST400,ST800 sane-st400(5)
Tamarack sane-tamarack(5)
UMAX sane-umax(5)
Backends for digital cameras:
Connectix QuickCam sane-qcam(5)
Kodak DC20/DC25 sane-dc25(5)
Kodak dc210 sane-dc210(5)
Polaroid sane-dmc(5)
Miscellaneous backends:
PNM image reader sane-pnm(5)
PINT scanners sane-pint(5)
Video for Linux sane-v4l(5)
Miscellaneous:
Dynamic loading sane-dll(5)
Networking sane-net(5) and saned(1)
SCSI configuration sane-scsi(5)
For more details on supported scanners and cameras look at the SANE
website: http://www.mostang.com/sane/sane-backends.html
Please note that the default configuration uses sane-dll as the
top-level backend. Hence it is probably a good idea to start with
reading sane-dll(5). The top-level backend is determined by the
libsane.* symlinks in /usr/local/lib/.
For SCSI scanners reading of sane-scsi(5) is recommended.
Please also read the file PROJECTS for projects that are planned or
not yet included into the SANE distribution.
If you encounter any problems with getting your device(s) recognized,
try setting the various environment variables that are there to assist
in debugging such problems. The environment variables are documented
in the relevant manual pages. For example, to get the maximum amount
of debug information when testing a Mustek scanner, set environment
variables SANE_DEBUG_DLL, SANE_DEBUG_MUSTEK, and SANE_DEBUG_SANEI_SCSI
to 128 and then invoke scanimage or whatever program you're trying to
debug. For a Mustek scanner at /dev/scanner, you might want to invoke
scanimage as follows:
scanimage -d mustek:/dev/scanner -h
If this works, you could try to acquire an image with:
scanimage -d mustek:/dev/scanner >t.pnm
If you are not sure what generic SCSI device your scanner is connected
to, try the command tools/find-scanner. It is normally sufficient to
invoke the program without any arguments. Invoking this command
should produce output similar to this:
$ tools/find-scanner
find-scanner: found "MUSTEK MFC-06000CZ 1.01" at device /dev/scanner
find-scanner: found "MUSTEK MFC-06000CZ 1.01" at device /dev/sge
There may be several causes for the following messages from the
frontends: "scanimage: no SANE devices found" or "xscanimage: no
devices available." (together with a GTK error message).
* Your scanner is not recognized by any backend. It is not supported.
You may ask the maintainer of your backend (see AUTHORS) or
sane-devel@mostang.com if support is planned.
* SANE can't access the device files (e.g /dev/sga). Check the permissions.
* Your backend is not listed in dll.conf (or commented out).
The tools directory contains some small programs that may be helpfull. They
are described in tools/README.