Provided by: libsane-common_1.2.1-7build4_all 
NAME
sane-mustek_usb - SANE backend for Mustek USB flatbed scanners
DESCRIPTION
The sane-mustek_usb library implements a SANE (Scanner Access Now Easy) backend that
provides access to Mustek USB flatbed scanners (including a clone from Trust). At
present, the following scanners are known to work more or less with this backend:
Mustek 600 CU
Mustek 1200 UB
Mustek 1200 CU
Mustek 1200 CU Plus
Trust Compact Scan USB 19200
More details can be found on the Mustek USB backend homepage
http://www.meier-geinitz.de/sane/mustek_usb-backend/.
The Mustek BearPaw 1200 and 2400 scanners are supported by the plustek backend. See
sane-plustek(5) for details. The Mustek BearPaw 1200F is supported by the MA-1509 backend.
See sane-ma1509(5) for details. Other Mustek USB scanners are supported by the gt68xx
backend, see sane-gt68xx(5).
This backend can only work with scanners that are already detected by the operating
system. See sane-usb(5) for details.
If you own a Mustek (or Trust) scanner other than the ones listed above that works with
this backend, please let me know this by sending the scanner's exact model name and the
USB vendor and device ids (e.g. from /proc/bus/usb/devices or syslog) to me.
DEVICE NAMES
This backend expects device names of the form:
special
Where special is a path-name for the special device that corresponds to a USB scanner.
With Linux, such a device name could be /dev/usb/scanner0 or /dev/usbscanner1, for
example.
For FreeBSD use /dev/uscanner0.
CONFIGURATION
The contents of the mustek_usb.conf file is a list of options and device names that
correspond to Mustek USB scanners. Empty lines and lines starting with a hash mark (#)
are ignored. If a device name is placed in mustek_usb.conf, it must be followed by a line
containing the keyword option and an option specifying the scanner type. The following
options can be used: 600cu, 1200cu, 1200cu_plus, 1200ub. For the Trust Compact Scan USB
19200 use `option 1200ub'.
Instead of using the device name, the scanner can be autodetected by usb vendor_id
product_id statements which are already included into mustek_usb.conf. This is only
supported with Linux 2.4.8 and higher and all systems that support libsub. "vendor_id" and
"product_id" are hexadecimal numbers that identify the scanner. If this doesn't work, a
device name and the option specifying the scanner type must be placed in mustek_usb.conf
as described above.
The global option max_block_size can be used to limit the amount of data acquired in one
turn from the USB system. It may be worth trying, if USB errors occur.
A sample configuration file is shown below:
# Comment
option max_block_size 1024
usb 0x055f 0x0001
/dev/usb/scanner0
option 600cu
The first line is ignored. The second line sets the buffer size to a maximum of 1024
bytes. The third line tries to autodetect a scanner with vendor id 0x055f and product id
0x0001 (Mustek 1200 CU). The fourth line tells the backend to attach to /dev/usb/scanner0
and the fifth line specifies that /dev/usb/scanner0 is a Mustek 600 CU.
FILES
/etc/sane.d/mustek_usb.conf
The backend configuration file (see also description of SANE_CONFIG_DIR below).
/usr/lib/x86_64-linux-gnu/sane/libsane-mustek_usb.a
The static library implementing this backend.
/usr/lib/x86_64-linux-gnu/sane/libsane-mustek_usb.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 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_MUSTEK_USB
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.
Value Description
0 no output
1 print fatal errors
2 print important messages
3 print non-fatal errors and less important messages
4 print all but debugging messages
5 print high level debugging messages
6 print medium level debugging messages
7 print low level debugging messages
Example: export SANE_DEBUG_MUSTEK_USB=4
SEE ALSO
sane(7), sane-usb(5), sane-mustek(5), sane-mustek_pp(5), sane-plustek(5), sane-gt68xx(5),
sane-ma1509(5)
/usr/share/doc/libsane/mustek_usb/mustek_usb.CHANGES,
/usr/share/doc/libsane/mustek_usb/mustek_usb.TODO
http://www.meier-geinitz.de/sane/mustek_usb-backend/
AUTHOR
Henning Meier-Geinitz <henning@meier-geinitz.de>
This backend is based on the Mustek 1200ub backend from Mustek, maintained by Tom Wang.
BUGS
These devices have a hardware bug: Once data is written to them, they can't be reset
(toggle = DATA0). That means, any operation that tries to reset the device will result in
running into timeouts.
In earlier versions this backend failed when it was loaded the second time in some
configurations. The only choice was to replug the scanner in this case. The backend uses a
workaround for that bug now but it's only tested on Linux. Reports for other operating
systems are appreciated.
More detailed bug information is available at the Mustek backend homepage
http://www.meier-geinitz.de/sane/mustek_usb-backend/.
13 Jul 2008 sane-mustek_usb(5)