FreeBSD Manual Pages
sane-leo(5) SANE Scanner Access Now Easy sane-leo(5) NAME sane-leo - SANE backend for LEO Technologies scanners DESCRIPTION The sane-leo library implements a SANE (Scanner Access Now Easy) backend that provides access to some LEO SCSI flatbed scanners. This backend should be considered beta-quality software! LEO scanners were also sold under the Across Technologies brand. The scanners that should work with this backend are: Vendor Model status ---------------------- ----------- Across FS-1130 tested LEO S3 tested The options the backend supports can either be selected through command line options to programs like scanimage(1) or through GUI elements in xs- canimage(1) or xsane(1). If you have any strange behavior, please report to the backend maintainer or to the SANE mailing list. Valid command line options and their syntax can be listed by using scanimage --help -d leo Scan Mode --mode selects the basic mode of operation of the scanner. Valid choices are Black & White, Grayscale and Color. The Black & White mode is black and white only (1 bit). Grayscale mode will produce 256 lev- els of gray (8 bits). Color mode will produce a 24 bit color image. --resolution selects the resolution for a scan. The scanner can do all resolu- tions between 1 and 300, in increments of 1. Geometry options -l -t -x -y control the scan area: -l sets the top left x coordinate, -t the top left y coordinate, -x selects the width and -y the height of the scan area. All parameters are specified in millimeters by default. Enhancement options --custom-gamma (grayscale and color mode only) allows the user to specify a gamma table (see the next 3 parameters). --red-gamma-table (color mode only) can be used to download a user defined gamma table for the red channel. The table must be 256 bytes long. --green-gamma-table (color mode only) can be used to download a user defined gamma table for the green channel. The table must be 256 bytes long. --blue-gamma-table (color mode only) can be used to download a user defined gamma table for the blue channel. The table must be 256 bytes long. --halftone (Black & White only) select the halftone mask to use. Possible val- ues are Diamond, 8x8 Coarse Fatting, 8x8 Fine Fatting, 8x8 Bayer and 8x8 Vertical Line. --preview requests a preview scan. The resolution used for that scan is 28 dpi and the scan area is the maximum allowed. The scan mode is user se- lected. The default is "no". CONFIGURATION FILE The configuration file /usr/local/etc/sane.d/leo.conf supports only one in- formation: the device name to use (eg /dev/scanner). FILES /usr/local/lib/sane/libsane-leo.a The static library implementing this backend. /usr/local/lib/sane/libsane-leo.so The shared library implementing this backend (present on systems that support dynamic loading). ENVIRONMENT SANE_DEBUG_LEO If the library was compiled with debug support enabled, this envi- ronment variable controls the debug level for this backend. E.g., a value of 128 requests all debug output to be printed. Smaller levels reduce verbosity. LIMITATIONS The windows TWAIN driver has many more options than this SANE backend. How- ever they are only software adjustments. This backend only implements what the scanner can support. BUGS None known. SEE ALSO sane-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7) AUTHOR The package is actively maintained by Frank Zago. http://www.zago.net/sane/#leo 11 Jul 2008 sane-leo(5)
NAME | DESCRIPTION | CONFIGURATION FILE | FILES | ENVIRONMENT | LIMITATIONS | BUGS | SEE ALSO | AUTHOR
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=sane-leo&sektion=5&manpath=FreeBSD+Ports+15.1.quarterly>