sane-u12(5) SANE Scanner Access Now Easy sane-u12(5)
NAME
sane-u12 - SANE backend for Plustek USB flatbed scanners, based on older
parport designs
DESCRIPTION
The sane-u12 library implements a SANE (Scanner Access Now Easy) backend
that provides access to USB flatbed scanners based on Plusteks' ASIC
98003 (parallel-port ASIC) and a GeneSys Logics' USB-parport bridge
chip.
SUPPORTED DEVICES
The backend is able to support some early Plustek USB scanners that
based their old parport design around the ASIC 98003 and other rebadged
Plustek devices. The following tables will give you a short overview.
If your Plustek scanner has another Product ID, then the device is NOT
supported by this backend.
Vendor Plustek - ID: 0x07B3
----------------------------------------------------------
Model: Vendor-ID: Product-ID:
----------------------------------------------------------
OpticPro U12 0x07B3 0x0001
OpticPro U1212 0x07B3 0x0001
OpticPro UT12 0x07B3 0x0001
Vendor KYE/Genius
--------------------------------------------------------
USB Model: Vendor-ID: Product-ID:
--------------------------------------------------------
ColorPage Vivid III USB 0x07B3 0x0001
ColorPage HR6 V1 0x0458 0x2004
CONFIGURATION
To use your scanner with this backend, you need at least two entries in
the configuration file /etc/sane.d/u12.conf
[usb] vendor-id product-id
device /dev/usbscanner
[usb] tells the backend, that the following devicename (here /dev/usb-
scanner) has to be interpreted as USB scanner device. If vendor- and
product-id has not been specified, the backend tries to detect this by
its own. If device is set to auto then the next matching device is used.
The Options:
option warmup t
t specifies the warmup period in seconds
option lampOff t
t is the time in seconds for switching off the lamps in standby
mode
option lOffonEnd b
b specifies the behaviour when closing the backend, 1 --> switch
lamps off, 0 --> do not change lamp status
See the u12.conf file for examples.
Note: You have to make sure, that the USB subsystem is loaded correctly
and you have access to the device-node. For more details see sane-usb(5)
manpage. You might use sane-find-scanner(1) to check that you have ac-
cess to your device.
Note:
If there's no configuration file, the backend defaults to device auto
FILES
/etc/sane.d/u12.conf
The backend configuration file
/usr/lib/x86_64-linux-gnu/sane/libsane-u12.a
The static library implementing this backend.
/usr/lib/x86_64-linux-gnu/sane/libsane-u12.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 direc-
tories are separated by a colon (`:'), under OS/2, they are sepa-
rated 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_U12
If the library was compiled with debug support enabled, this en-
vironment variable controls the debug level for this backend.
Higher debug levels increase the verbosity of the output.
Example: export SANE_DEBUG_U12=10
SEE ALSO
sane(7), sane-usb(5), sane-plustek(5), sane-find-scanner(1), xscanim-
age(1), scanimage(1)
/usr/share/doc/libsane/u12/U12.changes
CONTACT AND BUG-REPORTS
Please send any information and bug-reports to:
SANE Mailing List
Additional info and hints can be obtained from our mailing-List archive
at: http://www.sane-project.org/mailing-lists.html.
To obtain debug messages from the backend, please set the environment-
variable SANE_DEBUG_U12 before calling your favorite SANE frontend (e.g.
xscanimage(1)):
export SANE_DEBUG_U12=20 ; xscanimage
The value controls the verbosity of the backend.
KNOWN BUGS & RESTRICTIONS
* The driver is in alpha state, so please don't expect too much!!!
* When using libusb, it might be, that the backend hangs. In that case,
reconnect the scanner.
14 Jul 2008 sane-u12(5)
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