Ubuntu Manpage: sane-mustek_usb - SANE backend for Mustek USB flatbed scanners

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

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)