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       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
       with the model number, so that arrangements  can  be  made  to  include
       support        for        it.        Have        a        look       at concerning  subscription
       to sane-devel.

       Abaton  is  out  of  business,  and these scanners are not supported by
       Everex (the parent company 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 "missing 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


       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 command.


       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.

                                  11 Jul 2008                   sane-abaton(5)