CONFIGURATION
The contents of the canon630u.conf file is a list of device
names that correspond to Canon USB scanners. Empty lines
and lines starting with a hash mark (#) are ignored. Only
one device name can be listed in canon630u.conf. The pro-
gram sane-find-scanner helps to find out the correct device.
Under Linux, such a device name could be /dev/usb/scanner0
for example. See sane-usb(5) for details.
This product-specific scanner driver uses the lower-level
kernel USB driver "scanner". Check for "Driver=usbscanner"
under /proc/bus/usb/devices. If "Driver=(none)", try forc-
ing it with "insmod scanner vendor=0x04a9 product=0x2204"
NOTES
Due to Canon's unwillingness to provide scanner documenta-
tion, this software was developed by analyzing the USB
traffic of the Windows 2000 driver. So things like the
calibration procedure I kind of made up; it seems to work
for my scanner. If you have complaints, let me know.
This driver requires the ability to send USB Control Mes-
sages, available in kernel 2.4.12 or later.
Some users have reported that this driver doesn't work at
all. This seems to be a hardware specific issue, although I
don't know what exactly the problem is. If you are having
problems, please send me the info in /proc/bus/usb/devices,
/proc/pci, the kernel scanner.c driver version from
/var/log/messages, and the output from
"SANE_DEBUG_CANON630U=12 scanimage > /dev/null"
FILES
/etc/sane.d/canon630u.conf
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The backend configuration file (see also description of
SANE_CONFIG_DIR below).
/usr/lib/sane/libsane-canon630u.a
The static library implementing this backend.
/usr/lib/sane/libsane-canon630u.so
The shared library implementing this backend (present
on systems that support dynamic loading).
/tmp/canon.cal
The calibration file used to normalize pixel bright-
ness. This is calculated every time the scanner is
first used after it has lost power. Deleting this file
will force recalibration.
ENVIRONMENT
SANE_CONFIG_DIR
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 SANE_CONFIG_DIR to
"/tmp/config:" would result in directories
"tmp/config", ".", and "/etc/sane.d" being searched (in
this order).
SANE_DEBUG_CANON630U
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.
Example:
SANE_DEBUG_CANON630U=12 scanimage > /dev/null
SEE ALSO
sane(7), sane-usb(5), sane-find-scanner(1)
http://canon-fb630u.sourceforge.net/
AUTHOR
Nathan Rutman
ATTRIBUTES
See attributes(5) for descriptions of the following
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SANE Scanner Access Now Easy sane-canon630u(5)
attributes:
_________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|____________________|____________________________________|_
| Availability | image/scanner/xsane/sane-backends|
|____________________|____________________________________|_
| Interface Stability| Uncommitted |
|____________________|___________________________________|
NOTES
Source for SANE is available on http://opensolaris.org.
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