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 [email protected] with the model
number, so that arrangements can be made to include support for it.
Have a look at http://www.mostang.com/sane/mail.html 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:
special
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.
/etc/sane.d/abaton.conf
The backend configuration file (see also description of
SANE_CONFIG_DIR below).
/usr/lib/sane/libsane-abaton.a
The static library implementing this backend.
/usr/lib/sane/libsane-abaton.so
The shared library implementing this backend (present on systems
that support dynamic loading).
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 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_ABATON [Toc] [Back]
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 [Toc] [Back]
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 [Toc] [Back]
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
[email protected].
Implement non-blocking support
Finish reverse-engineering the MacOS driver [Toc] [Back]
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.
19 Nov 1998 sane-abaton(5)
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