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280 wiersze
9.4 KiB
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<HTML>
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<TITLE>sane-umax.5</TITLE>
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<BODY BGCOLOR=#FFFFFF TEXT=#000000><H1 ALIGN=CENTER><IMG SRC="/images/sane.png" HEIGHT=117 WIDTH=346></H1>
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<H1>sane-umax.5</H1>
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<HR>
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<PRE>
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<!-- Manpage converted by man2html 3.0.1 -->
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<B><A HREF="sane-umax.5.html">sane-umax(5)</A></B> SANE Scanner Access Now Easy <B><A HREF="sane-umax.5.html">sane-umax(5)</A></B>
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</PRE>
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<H2>NAME</H2><PRE>
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sane-umax - SANE backend for UMAX scanners
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</PRE>
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<H2>ABOUT THIS FILE</H2><PRE>
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This file only is a short descripton of the umax-backend for sane! For
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detailled information take a look at sane-umax-doc.html (it is included
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in the sane source directory and in the xsane online help)!
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</PRE>
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<H2>DESCRIPTION</H2><PRE>
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The <B>sane-umax</B> library implements a SANE backend that provides acces to
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several UMAX-SCSI-scanners and some Linotye Hell SCSI-scanners, paral-
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lel- and USB-scanners are not (and propably will never be) supported!
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<B>I</B> <B>suggest</B> <B>you</B> <B>hold</B> <B>one</B> <B>hand</B> <B>on</B> <B>the</B> <B>power-button</B> <B>of</B> <B>the</B> <B>scanner</B> <B>while</B>
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<B>you</B> <B>try</B> <B>the</B> <B>first</B> <B>scans!</B>
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</PRE>
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<H2>CONFIGURATION</H2><PRE>
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The configuration file for this backend resides in
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/usr/local/etc/sane.d/umax.conf.
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Its contents is a list of device names that correspond to UMAX and UMAX
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compatible scanners. Empty lines and lines starting with a hash mark
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(#) are ignored. A sample configuration file is shown below:
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# this is a comment
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#
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option scsi-maxqueue 4
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option scsi-buffer-size-min 65536
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option scsi-buffer-size-max 131072
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option scan-lines 40
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option preview-lines 10
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option scsi-maxqueue 2
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option execute-request-sense 0
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option force-preview-bit-rgb 0
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option slow-speed -1
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option care-about-smearing -1
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option calibration-full-ccd -1
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option calibration-width-offset -1
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option calibration-bytes-pixel -1
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option exposure-time-rgb-bind -1
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option invert-shading-data -1
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option lamp-control-available 0
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option gamma-lsb-padded 0
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/dev/sge
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#scsi Vendor Model Type Bus Channel ID LUN
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# The following scanner supports lamp control
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option lamp-control-available 1
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scsi UMAX * Scanner * * * * *
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# scanner on /dev/scanner does not support lamp control
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option lamp-control-available 0
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/dev/scanner
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- execute-request-sense:
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values:
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0 = disabled
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1 = enabled
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default = 0
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If set to 1 umax_do_request_sense is called in
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umax_do_calibration. This can hang the system
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(but has been enabled until this version)
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- scsi-buffer-size-min, scsi-buffer-size-max:
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values: 4096-1048576, default min=32768, max=131072
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Especially the minimum value is very important.
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If this value is set too small the backend is not
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able to send gamma tables to the scanner or to
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do a correct color calibration. This may result in
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strange color effects. If the minimum value is set
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too large then the backend is not able to allocate
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the requested scsi buffer size and aborts with
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out of memory error. The default is 32KB, for
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some scanners it should be increased to 64KB.
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- scan-lines, preview-lines:
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values: 1-65535,
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default: scan-lines=40, preview-lines=10
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define the maximum number of lines that are scanned
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into one buffer
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- force-preview-bit-rgb:
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values:
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0 = disabled
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1 = enabled
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default = 0
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set preview bit in rgb real scan
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- slow-speed, care-about-smearing:
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values:
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-1 = auto
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0 = disabled
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1 = enabled
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default = -1
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dangerous options, needed for some scanners
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do not changed these options until you really know
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what you do, you may destroy your scanner when you
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define wrong values for this options
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- calibration-full-ccd:
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values:
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-1 = auto
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0 = disabled
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1 = enabled
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default = -1
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do calibration for each pixel of ccd instead of
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selected image
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- calibration-width-offset:
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values: -99999=auto, >-99999 set value
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add an offset width to the calculated with for
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image/ccd
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- calibration-bytes-pixel:
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values:
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-1 = disabled
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0 = not set
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1 = 1 byte/pixel,
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2 = 2 bytes/pixel
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use # bytes per pixel for calibration
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- exposure-time-rgb-bind:
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values:
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-1 = automatically set by driver - if known
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0 = disabled (own selection for red, green and blue)
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1 = enabled (same values for red, green and blue)
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- invert-shading-data:
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values:
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-1 = automatically set by driver - if known
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0 = disabled
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1 = enabled
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default = -1
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invert shading data before sending it back to the scanner
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- lamp-control-available:
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values:
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0 = automatically set by driver - if known
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1 = available
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default = 0
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- gamma-lsb-padded:
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values:
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-1 = automatically set by driver - if known
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0 = gamma data is msb padded
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1 = gamma data is lsb padded
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default = -1
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- handle-bad-sense-error:
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values:
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0 = handle as device busy
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1 = handle as ok
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2 = handle as i/o error
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3 = ignore bad error code - continue sense handler,
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default = 0
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- scsi-maxqueue:
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values:
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1..# (maximum defined at compile time)
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default = 2
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most scsi drivers allow internal command queueing with a depth
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of 2 commands. In most cases it does not mprove anything when you
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increase this value. When your scsi driver does not support any
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command queueing you can try to set this value to 1.
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The special device name must be a generic SCSI device or a symlink to
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such a device. To find out to which device your scanner is assigned
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and how you have to set the permissions of that device, have a look at
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sane-scsi.
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</PRE>
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<H2>SCSI ADAPTER TIPS</H2><PRE>
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The ISA-SCSI-adapters that are shipped with some Umax-scanners are not
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supported very well by Linux (I suggest not to use it), the PCI-SCSI-
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adapters that come with some Umax-scanners are not supported at all (as
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far as I know). On other platforms these SCSI-adapters are not sup-
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ported. So you typically need to purchase another SCSI-adapter that is
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supported by your platform. See the relevant hardware FAQs and HOWTOs
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for your platform for more information.
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The UMAX-scanners do block the scsi-bus for a few seconds while scan-
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ning. It is not necessary to connect the scanner to its own SCSI-
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adapter. But if you need short response time for your SCSI-harddisk
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(e.g. if your computer is a file-server) or other scsi devices, I sug-
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gest you use an own SCSI-adapter for your UMAX-scanner.
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If you have any problems with your Umax scanner, check your scsi chain
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(cable length, termination, ...).
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See also: <B><A HREF="sane-scsi.5.html">sane-scsi(5)</A></B>
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</PRE>
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<H2>FILES</H2><PRE>
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The backend configuration file:
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/usr/local/etc/sane.d/umax.conf
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The static library implementing this backend:
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/usr/local/lib/sane/libsane-umax.a
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The shared library implementing this backend :
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/usr/local/lib/sane/libsane-umax.so
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(present on systems that support dynamic loading)
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</PRE>
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<H2>ENVIRONMENT</H2><PRE>
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<B>SANE_DEBUG_UMAX</B>
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If the library was compiled with debug support enabled, this environ-
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ment variable controls the debug level for this backend. E.g., a value
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of 128 requests all debug output to be printed. Smaller levels reduce
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verbosity: SANE_DEBUG_UMAX values
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Number Remark
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0 print important errors (printed each time)
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1 print errors
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2 print sense
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3 print warnings
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4 print scanner-inquiry
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5 print informations
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6 print less important informations
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7 print called procedures
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8 print reader_process messages
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10 print called sane-init-routines
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11 print called sane-procedures
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12 print sane infos
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13 print sane option-control messages
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Example:
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export SANE_DEBUG_UMAX=8
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</PRE>
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<H2>BUGS</H2><PRE>
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X-resolutions greater than 600 dpi sometimes make problems
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</PRE>
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<H2>SEE ALSO</H2><PRE>
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<B><A HREF="sane.7.html">sane(7)</A></B>
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</PRE>
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<H2>AUTHOR</H2><PRE>
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Oliver Rauch
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</PRE>
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<H2>EMAIL-CONTACT</H2><PRE>
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Oliver.Rauch@Rauch-Domain.DE
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sane-backends 1.0.12-cvs 29 november 2002 <B><A HREF="sane-umax.5.html">sane-umax(5)</A></B>
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</PRE>
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<HR>
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<ADDRESS>
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