Added leo backend documentation.

doc/sane-leo.man

@@ -0,0 +1,154 @@
+.TH sane-leo 5 "16 April 2002"
+.IX sane-leo
+.SH NAME
+sane-leo - SANE backend for LEO Technologies scanners
+.SH DESCRIPTION
+The
+.B 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
+.B beta-quality
+software! LEO scanners were also sold under the Across Technologies brand.
+.PP
+The scanners that should work with this backend are:
+.PP
+.RS
+   Vendor Model           status
+.br
+----------------------  -----------
+.br
+  Across FS-1130          tested
+
+.RE
+
+The options the backend supports can either be selected through
+command line options to programs like scanimage or through GUI
+elements in xscanimage or xsane.
+
+.br
+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 
+.RS
+scanimage --help -d leo
+.RE
+
+.TP
+.B Scan Mode
+
+.TP
+.B --mode
+selects the basic mode of operation of the scanner valid choices are 
+.I Black & White
+,
+.I Grayscale
+and
+.I Color
+The Black & White mode is black and white only (1 bit). Grayscale
+will produce 256 levels of gray (8 bits). Color will produce a 24 bits
+color image.
+
+.TP
+.B --resolution
+selects the resolution for a scan. The scanner can do all resolutions
+between 1 and 300, in increments of 1.
+
+
+.TP
+.B Geometry options
+
+.TP
+.B -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.
+
+
+.TP
+.B Enhancement options
+
+.TP
+.B --custom-gamma
+(grayscale and color mode only) allows the user to specify a gamma table (see the
+next 3 parameters).
+
+.TP 
+.B --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.
+
+.TP 
+.B --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.
+
+.TP
+.B --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.
+
+.TP
+.B --halftone
+(Black & White only) select the halftone mask to use. Possible values are 
+.I Diamond
+,
+.I 8x8 Coarse Fatting
+,
+.I 8x8 Fine Fatting
+,
+.I 8x8 Bayer
+and
+.I 8x8 Vertical Line
+
+.TP 
+.B --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
+selected. The default is "no".
+
+
+.SH CONFIGURATION FILE
+The configuration file @CONFIGDIR@/leo.conf supports only one information: the device name to use (eg /dev/scanner).
+
+
+.SH FILES
+.TP
+.I @LIBDIR@/libsane-leo.a
+The static library implementing this backend.
+.TP
+.I @LIBDIR@/libsane-leo.so
+The shared library implementing this backend (present on systems that
+support dynamic loading).
+
+
+.SH ENVIRONMENT
+.TP
+.B SANE_DEBUG_LEO
+If the library was compiled with debug support enabled, this
+environment 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.
+
+
+.SH LIMITATIONS
+The windows TWAIN driver has many more options than this SANE
+backend. However they are only software adjustments. This backend only
+implements what the scanner can support.
+
+
+.SH BUGS
+
+None known.
+
+
+.SH "SEE ALSO"
+
+sane\-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
+
+
+.SH AUTHOR
+
+The package is actively maintained by Frank Zago.
+    http://fz.eryx.net/sane/#leo

doc/sane.man

@@ -1,4 +1,4 @@
-.TH sane 7 "17 Apr 2002"
+.TH sane 7 "April 20th, 2002"
 .IX sane
 
 .SH NAME
@@ -178,6 +178,10 @@ The SANE hp backend provides access to HP ScanJet scanners and OfficeJet
 multi-function peripherals (MFPs) which support SCL (Scanner Control Language
 by HP). See sane-hp(5) for details.
 .TP
+.B leo
+This backend support the Across FS-1130, which is a re-badged LEO
+FS-1130 scanner. See sane-leo(5) for details.
+.TP
 .B matsushita
 This backend supports some Panasonic KVSS high speed scanners. See
 sane-matsushita(5) for details.