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sane-abaton(5)									   sane-abaton(5)

       sane-abaton - SANE backend for Abaton flatbed scanners

       The  sane-abaton library implements a SANE (Scanner Access Now Easy) backend that provides
       access to Abaton flatbed scanners. At present, only the Scan 300/GS (8bit, 256  levels  of
       gray)  is  fully supported, due to the absence of programming information.  The Scan 300/S
       (black and white) is recognized, but support for it is untested.

       If you own a Abaton scanner other than the ones listed above that works with this backend,
       or  if  you  own  an  Abaton  scanner that does not work with this backend, please contact
       sane-devel@mostang.com with the model number, so that arrangements can be made to  include
       support	for it. Have a look at http://www.mostang.com/sane/mail.html concerning subscrip-
       tion to sane-devel.

       Abaton is out of business, and these scanners are not supported by Everex (the parent com-
       pany  of  Abaton),  nor	is there any programming information to be found.  This driver is
       therefore based on information obtained by running Abaton's scanning desk accessory  under
       MacsBug and tracing the MacOS SCSI Manager calls it made during image acquisition.

       However,  the protocol is very similar to, though not compatible with, the one used by the
       Apple scanners, therefore, if this backend is ever extended to support  the  other  Abaton
       models (they also made a color flatbed scanner), it may be possible to fill in some "miss-
       ing pieces" from the (quite detailed) Apple scanner documentation.

       This backend expects device names of the form:


       Where special is the path-name for the special device that corresponds to a SCSI  scanner.
       For  SCSI  scanners, the special device name must be a generic SCSI device or a symlink to
       such a device.  Under Linux, such a device  name  takes	a  format  such  as  /dev/sga  or
       /dev/sg0, for example.  See sane-scsi(5) for details.

       The  contents  of the abaton.conf file is a list of device names that correspond to Abaton
       scanners.  Empty lines and lines starting with a hash mark (#)  are  ignored.   See  sane-
       scsi(5) on details of what constitutes a valid device name.

	      The backend configuration file (see also description of SANE_CONFIG_DIR below).

	      The static library implementing this backend.

	      The  shared  library  implementing  this	backend  (present on systems that support
	      dynamic loading).

	      This environment variable specifies the list of directories that	may  contain  the
	      configuration  file.   Under  UNIX, the directories are separated by a colon (`:'),
	      under OS/2, they are separated by a semi-colon (`;').  If this variable is not set,
	      the  configuration  file is searched in two default directories: first, the current
	      working directory (".") and then in /etc/sane.d.	If the value of  the  environment
	      variable	ends with the directory separator character, then the default directories
	      are searched after the explicitly  specified  directories.   For	example,  setting
	      SANE_CONFIG_DIR  to  "/tmp/config:"  would result in directories "tmp/config", ".",
	      and "/etc/sane.d" being searched (in this order).

	      If the library was compiled with debug support enabled, this  environment  variable
	      controls the debug level for this backend.  E.g., a value of 255 requests all debug
	      output to be printed.  Smaller levels reduce verbosity.

       There are a few known ones, and definitely some unknown ones.

       Scan area miscalculations
	      For the sake of programmer efficiency, this backend  handles  all  measurements  in
	      millimetres, and floors (rather than rounds) values to avoid possible damage to the
	      scanner mechanism.  Therefore, it may not be possible to scan to the extreme  right
	      or bottom edges of the page.

       Cancelling the scan
	      This  might not work correctly, or it might abort the frontend.  The former is more
	      likely than the latter.

       If you have found something that you think is a bug, please attempt to  recreate  it  with
       the  SANE_DEBUG_ABATON  environment  variable  set to 255, and send a report detailing the
       conditions surrounding the bug to sane-devel@mostang.com.

       Implement non-blocking support

       Finish reverse-engineering the MacOS driver
	      This will allow me to add support for other models with reasonable confidence  that
	      it  will	work, as well as to fully exploit the information returned by the INQUIRY

       sane(7), sane-scsi(5), scanimage(1)

       The sane-abaton backend was partially written by David Huggins-Daines, based on the  sane-
       apple backend by Milon Firikis.

					   19 Nov 1998				   sane-abaton(5)
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