ners (HP, Minolta, Mitsubishi, UMAX and possibly more) flatbed and film

       This  file  is a short description for the avision-backend shipped with

       The sane-avision library implements a SANE (Scanner  Access  Now  Easy)
       backend  that  provides access to various Avision scanners and the Avi-
       sion OEM scanners labelled by HP, Minolta, Mitsubishi or Fujitsu.

       It is fully big-endian aware and in every-day use on PowerPC and  SPARC

       I  suggest  you  hold one hand on the power-button of the scanner while
       you try the first scans - especially with film-scanners!

       The configuration file for this  backend  resides  in  /etc/sane.d/avi-

       Its  contents  is a list of device names that correspond to Avision and
       Avision compatible scanners and backend-options. Empty lines and  lines
       starting  with a hash mark (#) are ignored. A sample configuration file
       is shown below:

        # this is a comment

        option force-a4
        option force-a3
        option disable-gamma-table
        option disable-calibration

        #scsi Vendor Model Type Bus Channel ID LUN
        scsi AVISION
        scsi HP
        scsi /dev/scanner
        usb 0x03f0 0x0701

              Forces the backend to overwrite the scanable  area  returned  by
              the  scanner  to  ISO A4. Scanner that are known to return bogus
              data are marked in the backend so if you need this option please
              report this to the backend maintainer. USE WITH CARE!

              Forces  the  backend  to overwrite the scanable area returned by
              the scanner to ISO A3. Scanner that are known  to  return  bogus
              data are marked in the backend so if you need this option please
              with the default be- haviour of the backend. Please  report  the
              need  of  options  to  the  backend-author so the backend can be
              fixed as soon as possible.

       This backend expects device names of the form:

              scsi scsi-spec

              usb usb-spec

       Where scsi-spec is the path-name to a special device or a device ID for
       the  device that corresponds to a SCSI scanner. The special device name
       must be a generic SCSI device or a symlink to such a device, for  exam-
       ple on Linux "/dev/sga" or "/dev/sg0". The device ID is the ID returned
       by the scanner, for example "HP" or  "AVISION".  See  sane-scsi(5)  for

       Note:  Since  the  backend  now  includes  native  USB access, it is no
              longer needed - even considered obsolete - to access USB scanner
              via  the  SCSI  emulation (named hpusbscsi on Linux) for Avision
              USB devices such as the HP 53xx, HP 74xx or  Minolta  film-scan-

       usb-spec is the USB device name, the vendor/product ID pair or the name
       used by libusb corresponding to the USB scanner.  For  example  "0x03f0
       0x0701" or "libusb:002:003". See sane-usb(5) for details.

       The program sane-find-scanner helps to find out the correct scsi or usb
       device name.

       A list with supported devices is built into the avision backend so nor-
       mally specifying an ID should not be necessary.

              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
              environment  variable controls the debug level for this backend.
              Higher debug levels increase the verbosity of  the  output.  The
              debug  level  7 is the author's preferred value to debug backend

              Example: export SANE_DEBUG_AVISION=7

       sane(7), sane-scsi(5), sane-usb(5)

       Mike Kelly

       Rene Rebe and Meino Christian Cramer

                                  11 Jul 2008                  sane-avision(5)
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