sane-avision(5) File Formats Manual sane-avision(5)
NAME
sane-avision - SANE backend for original Avision and Avision OEM scanners (HP, Minolta, Mitsubishi, UMAX and possibly more) flatbed scan-
ners
ABOUT THIS FILE
This file only is a short descripton of the avision-backend for sane!
DESCRIPTION
The sane-avision library implements a SANE (Scanner Access Now Easy) backend that provides access to Avision flatbed scanners and the Avi-
sion OEM scanners labelled with HP and Minolta.
CONFIGURATION
The configuration file for this backend resides in /etc/sane.d/avision.conf.
Its contents is a list of device names that correspond to Avision and Avision compatible scanners. Empty lines and lines starting with a
hash mark (#) are ignored. A sample configuration file is shown below:
I suggest you hold one hand on the power-button of the scanner while you try the first scans!
#scsi Vendor Model Type Bus Channel ID LUN
scsi AVISION
/dev/scanner
# this is a comment
#
option force-a4
option disable-gamma-table
option disable-calibration
option disable-calibration
option one-calib-only
- force-a4:
Forces the backend to overwrite the scanable area
returned by the scanner. This might be needed for
the AV 630 which returns no area - or newer scanners
which retun the area in a unkown format our backend
doesn't recongize yet.
- disable-gamma-table:
Disables the usage of the scanner's gamma-table. You
might try this if your scans hang or only produces
random garbage.
- disable-calibration:
Disables the scanner's color calibration. You
might try this if your scans hang or only produces
random garbage.
- one-calib-only
When this option is enabled, the backend will only
perform a calibration when the backend is initialized
and not before each scan. This might extend the life
of the CCD, but does not work reliable with the newer
USB scanners (they hang sometimes or return garbage
image data). So this option should be used with care.
DEVICE NAMES
This backend expects device names of the form:
special
Where special is the path-name for the special device that corresponds to a SCSI scanner. The special device name must be a generic SCSI
device or a symlink to such a device. The program sane-find-scanner helps to find out the correct device. Under Linux, such a device name
could be /dev/sga or /dev/sge, for example. See sane-scsi(5) for details.
FILES
/etc/sane.d/avision.conf
The backend configuration file (see also description of SANE_CONFIG_DIR below).
/usr/lib/sane/libsane-avision.a
The static library implementing this backend.
/usr/lib/sane/libsane-avision.so
The shared library implementing this backend (present on systems that support dynamic loading).
ENVIRONMENT
SANE_CONFIG_DIR
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 configura-
tion 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 explic-
itly 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).
SANE_DEBUG_AVISION
If the library was compiled with debug support enabled, this environment variable controls the debug level for this backend. Higher
debug levels increase the verbosity of the output.
Example: export SANE_DEBUG_AVISION=4
SEE ALSO
sane(7), sane-scsi(5)
http://drocklinux.dyndns.org/rene/avision/index.html
AUTHOR
Rene Rebe, Meino Christian Cramer and Jose Paulo Moitinho de Almeida
07 Julc 2002 sane-avision(5)