sane-mustek_usb - SANE backend for Mustek USB flatbed scanners
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
The Mustek BearPaw 1200 and 2400 scanners are supported by the plustek backend.
(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
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
or syslog) to me.
This backend expects device names of the form:
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
, for example.
For FreeBSD use /dev/uscanner0
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
, it must be followed by a line containing the keyword
and an option specifying the scanner type. The following options
can be used: 600cu
For the Trust Compact Scan USB 19200 use `option 1200ub'.
Instead of using the device name, the scanner can be autodetected by usb
statements which are already included into
. 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
A sample configuration file is shown below:
option max_block_size 1024
usb 0x055f 0x0001
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
is a Mustek 600 CU.
- The backend configuration file (see also description of
- The static library implementing this backend.
- The shared library implementing this backend (present on
systems that support dynamic loading).
- 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).
- 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.
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
Henning Meier-Geinitz <email@example.com>
This backend is based on the Mustek 1200ub backend from Mustek, maintained by
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