SANE Scanner Access Now Easy sane-umax(5)
NAME
sane-umax - SANE backend for UMAX scanners
ABOUT THIS FILEThis file only is a short descripton of the umax-backend for
sane! For detailled information take a look at sane-umax-
doc.html (it is included in the sane source directory and in the xsane online help)!DESCRIPTION
The sane-umax library implements a SANE backend that pro-
vides acces to several UMAX-SCSI-scanners and some Linotye
Hell SCSI-scanners, parallel- and USB-scanners are not (and
propably will never be) supported! I suggest you hold one hand CONFIGURATION The configuration file for this backend resides in /etc/sane.d/umax.conf. Its contents is a list of device names that correspond to UMAX and UMAX compatible scanners. Empty lines and linesstarting with a hash mark (#) are ignored. A sample confi-
guration file is shown below:# this is a comment
#
option scsi-maxqueue 4
option scsi-buffer-size-min 65536
option scsi-buffer-size-max 131072
option scan-lines 40
option preview-lines 10
option scsi-maxqueue 2
option execute-request-sense 0
option force-preview-bit-rgb 0
option slow-speed -1
option care-about-smearing -1
option calibration-full-ccd -1
option calibration-width-offset -1
option calibration-bytes-pixel -1
option exposure-time-rgb-bind -1
option invert-shading-data -1
option lamp-control-available 0
option gamma-lsb-padded 0
/dev/sge#scsi Vendor Model Type Bus Channel ID LUN
# The following scanner supports lamp control
sane-backends 1.0.1L9ast change: 29 november 2002 1
SANE Scanner Access Now Easy sane-umax(5)
option lamp-control-available 1
scsi UMAX * Scanner * * * * *# scanner on /dev/scanner does not support lamp control
option lamp-control-available 0
/dev/scannerexecute-request-sense:
values: 0 = disabled, 1 = enabled default = 0If set to 1 umax_do_request_sense is called in
umax_do_calibration. This can hang the system (but has
been enabled until this version)scsi-buffer-size-min, scsi-buffer-size-max:
values: 4096-1048576
default min = 32768, max = 131072 Especially the minimum value is very important. If this value is set too small the backend is not able to send gamma tables to the scanner or to do a correct color calibration. This may result in strange color effects. If the minimum value is set too large then the backend is not able to allocate the requested scsi buffer size and aborts with out of memory error. The default is 32KB, for some scanners it should be increased to 64KB.scan-lines, preview-lines:
values: 1-65535
default: scan-lines = 40, preview-lines = 10
define the maximum number of lines that are scanned into one bufferforce-preview-bit-rgb:
values: 0 = disabled, 1 = enabled default = 0 set preview bit in rgb real scanslow-speed, care-about-smearing:
values: -1 = auto, 0 = disabled, 1 = enabled
default = -1
dangerous options, needed for some scanners do not changed these options until you really know what you do, you may destroy your scanner when you define wrong values for this optionscalibration-full-ccd:
values: -1 = auto, 0 = disabled, 1 = enabled
default = -1
do calibration for each pixel of ccd instead of selected imagesane-backends 1.0.1L9ast change: 29 november 2002 2
SANE Scanner Access Now Easy sane-umax(5)
calibration-width-offset:
values: -99999 = auto, > -99999 set value
add an offset width to the calculated with for image/ccdcalibration-bytes-pixel:
values: -1 = disabled, 0 = not set, 1 = 1 byte/pixel,
2 = 2 bytes/pixeluse # bytes per pixel for calibration
exposure-time-rgb-bind:
values: -1 = automatically set by driver - if known, 0
= disabled (own selection for red, green and blue), 1 = enabled (same values for red, green and blue)invert-shading-data:
values: -1 = automatically set by driver - if known, 0
= disabled, 1 = enableddefault = -1
invert shading data before sending it back to the scannerlamp-control-available:
values: 0 = automatically set by driver - if known, 1
= available default = 0gamma-lsb-padded:
values: -1 = automatically set by driver - if known, 0
= gamma data is msb padded, 1 = gamma data is lsb pad-
deddefault = -1
handle-bad-sense-error:
values: 0 = handle as device busy, 1 = handle as ok, 2= handle as i/o error, 3 = ignore bad error code - con-
tinue sense handler default = 0scsi-maxqueue:
values: 1..# (maximum defined at compile time)
default = 2 most scsi drivers allow internal command queueing with a depth of 2 commands. In most cases it does not mprove anything when you increase this value. When your scsi driver does not support any command queueing you can try to set this value to 1. The special device name must be a generic SCSI device or a symlink to such a device. To find out to which device your scanner is assigned and how you have to set the permissionssane-backends 1.0.1L9ast change: 29 november 2002 3
SANE Scanner Access Now Easy sane-umax(5)
of that device, have a look at sane-scsi.
SCSI ADAPTER TIPSThe ISA-SCSI-adapters that are shipped with some Umax-
scanners are not supported very well by Linux (I suggest notto use it), the PCI-SCSI-adapters that come with some Umax-
scanners are not supported at all (as far as I know). Onother platforms these SCSI-adapters are not supported. So
you typically need to purchase another SCSI-adapter that is
supported by your platform. See the relevant hardware FAQs and HOWTOs for your platform for more information.The UMAX-scanners do block the scsi-bus for a few seconds
while scanning. It is not necessary to connect the scannerto its own SCSI-adapter. But if you need short response time
for your SCSI-harddisk (e.g. if your computer is a file-
server) or other scsi devices, I suggest you use an ownSCSI-adapter for your UMAX-scanner.
If you have any problems with your Umax scanner, check your scsi chain (cable length, termination, ...).See also: sane-scsi(5)
FILES The backend configuration file: /etc/sane.d/umax.conf The static library implementing this backend:/usr/lib/sane/libsane-umax.a
The shared library implementing this backend:/usr/lib/sane/libsane-umax.so (present on systems that
support dynamic loading) ENVIRONMENTSANE_DEBUG_UMAX
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:SANE_DEBUG_UMAX values
Number Remark 0 print important errors (printed each time) 1 print errors 2 print sense 3 print warningssane-backends 1.0.1L9ast change: 29 november 2002 4
SANE Scanner Access Now Easy sane-umax(5)
4 print scanner-inquiry
5 print informations 6 print less important informations 7 print called procedures8 print reader_process messages
10 print called sane-init-routines
11 print called sane-procedures
12 print sane infos13 print sane option-control messages
Example:export SANE_DEBUG_UMAX=8
BUGS
X-resolutions greater than 600 dpi sometimes make problems
SEE ALSO
sane(7) AUTHOR Oliver RauchEMAIL-CONTACT
Oliver.Rauch@Rauch-Domain.DE
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:_________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|____________________|____________________________________|_
| Availability | image/scanner/xsane/sane-backends|
|____________________|____________________________________|_
| Interface Stability| Uncommitted ||____________________|___________________________________|
NOTES Source for SANE is available on http://opensolaris.org.sane-backends 1.0.1L9ast change: 29 november 2002 5