SANE Scanner Access Now Easy sane-avision(5)
NAME
sane-avision - SANE backend for original Avision and Avision
OEM scanners (HP, Minolta, Mitsubishi, UMAX and possibly
more) flatbed and film scanners.
ABOUT THIS FILE
This file is a short descripton for the avision-backend
shipped with SANE.
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 every-day use on PowerPC
and SPARC systems.
I suggest you hold one hand you try the first scans - espe-
cially with film-scanners!
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 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
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 report this to the
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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 report this to the back-
end maintainer. USE WITH CARE!
disable-gamma-table:
Disables the usage of the scanner's gamma-table. You
might try this if your scans hang or only produces ran-
dom garbage.
disable-calibration:
Disables the scanner's color calibration. You might try
this if your scans hang or only produces random gar-
bage.
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 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.
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-
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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 normally specifying an ID should not be neces-
sary.
FILES
/etc/sane.d/avision.conf
The backend configuration file (see also description of
SANECONFIGDIR 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
SANECONFIGDIR
This environment variable specifies the list of direc-
tories 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 direc-
tories are searched after the explicitly specified
directories. For example, setting SANECONFIGDIR to
"/tmp/config:" would result in directories
"tmp/config", ".", and "/etc/sane.d" being searched (in
this order).
SANEDEBUGAVISION
If the library was compiled with debug support enabled,
this environment variable controls the debug level for
this backend. Higher debug levels increase the verbos-
ity of the output. The debug level 7 is the author's
prefered value to debug backend problems.
Example: export SANEDEBUGAVISION=7
SEE ALSO
sane(7), sane-scsi(5), sane-usb(5)
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http:/www.exactcode.de/oss/avision/
AUTHOR
Ren['e] Rebe and Meino Christian Cramer
ATRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
ATRIBUTE TYPE ATRIBUTE VALUE
Availability SUNWsane-backend
Interface Stability Uncommitted
NOTES
Source for SANE is available on http:/opensolaris.org.
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