sane-avision(5) SANE Scanner Access Now Easy sane-avision(5)
NAME
sane-avision - SANE backend for Avision branded and Avision OEM (HP, Mi-
nolta, Mitsubishi, UMAX and possibly more) flatbed and film scanners.
DESCRIPTION
The sane-avision library implements a SANE (Scanner Access Now Easy)
backend that provides access to various Avision scanners and the Avision
OEM scanners labelled by HP, Minolta, Mitsubishi or Fujitsu.
It is fully big-endian aware and in everyday use on PowerPC and SPARC
systems.
I suggest you hold one hand on the power-button of the scanner while you
try the first scans - especially with film-scanners!
CONFIGURATION
The configuration file for this backend resides in /etc/sane.d/avi-
sion.conf.
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 skip-adf
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
force-a4:
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 re-
port this to the backend maintainer. USE WITH CARE!
force-a3:
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 re-
port this to the backend maintainer. USE WITH CARE!
skip-adf:
Forces the backend to ignore an inconsistent ADF status returned
by the scanner (ADF not present, but ADF model number non-zero).
Without this option, the backend will make several attempts to
reset the ADF and retry the query in this situation, and will
fail with a "not supported" error if the ADF still doesn't re-
spond.
disable-gamma-table:
Disables the usage of the scanner's gamma-table. You might try
this if your scans hang or only produce random garbage.
disable-calibration:
Disables the scanner's color calibration. You might try this if
your scans hang or only produce random garbage.
Note: Any option above modifies the default code-flow for your scanner.
The options should only be used when you encounter problems with
the default behavior of the backend. Please report the need of
options to the backend-author so the backend can be fixed as soon
as possible.
DEVICE NAMES
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 example
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 details.
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-scanners.
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(1) 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.
FILES
/etc/sane.d/avision.conf
The backend configuration file (see also description of SANE_CON-
FIG_DIR below).
/usr/lib/x86_64-linux-gnu/sane/libsane-avision.a
The static library implementing this backend.
/usr/lib/x86_64-linux-gnu/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. On *NIX systems, the direc-
tories are separated by a colon (`:'), under OS/2, they are sepa-
rated 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).
SANE_DEBUG_AVISION
If the library was compiled with debug support enabled, this en-
vironment variable controls the debug level for this backend.
Higher debug levels increase the verbosity of the output. The de-
bug level 7 is the author's preferred value to debug backend
problems.
Example: export SANE_DEBUG_AVISION=7
SEE ALSO
sane(7), sane-scsi(5), sane-usb(5)
http://exactcode.com/site/open_source/saneavision
MAINTAINER
René Rebe
AUTHOR
René Rebe and Meino Christian Cramer
11 Jul 2008 sane-avision(5)
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