kopia lustrzana https://gitlab.com/sane-project/backends
275 wiersze
8.4 KiB
Groff
275 wiersze
8.4 KiB
Groff
.TH sane-gt68xx 5 "22 Feb 2003" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
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.IX sane-gt68xx
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.SH NAME
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sane-gt68xx \- SANE backend for GT-68XX based USB flatbed scanners
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.SH DESCRIPTION
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The
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.B sane-gt68xx
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library implements a SANE (Scanner Access Now Easy) backend that provides
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access to USB flatbed scanners based on the Grandtech GT-6801 and GT-6816
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chips. At present, the following scanners are known to work with this
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backend:
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.PP
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.RS
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Artec Ultima 2000 (only product 0x4002)
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.br
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Boeder SmartScan Slim Edition
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.br
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Lexmark X70
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.br
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Lexmark X73
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.br
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Medion/Lifetec/Tevion MD 4395
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.br
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Medion/Lifetec/Tevion/Cytron MD/LT 9385
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.br
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Medion/Lifetec/Tevion LT 9452
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.br
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Medion/Lifetec/Tevion MD 9458
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.br
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Mustek BearPaw 1200 CS
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.br
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Mustek BearPaw 1200 CU (Plus)
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.br
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Mustek BearPaw 1200 TA
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.br
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Mustek BearPaw 2400 CS (Plus)
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.br
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Mustek BearPaw 2400 CU (Plus)
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.br
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Mustek BearPaw 2400 TA (Plus)
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.br
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Mustek ScanExpress A3 USB
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.br
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Mustek ScanExpress 1200 UB Plus
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.br
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Mustek ScanExpress 2400 USB
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.br
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Packard Bell Diamond 1200
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.br
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Plustek OpticPro 1248U
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.br
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Trust Compact Scan USB 19200
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.br
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Trust Flat Scan USB 19200
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.RE
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.PP
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More details can be found on the gt68xx backend homepage
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.IR http://www.meier-geinitz.de/sane/gt68xx/ .
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.PP
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The Artec E+ 48U and its clones are supported by the artec_eplus48u backend, see
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.BR sane-artec_eplus48u (5)
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for details.
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.PP
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This is BETA software. Especially if you test new or untested scanners, keep
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your hand at the scanner's plug and unplug it, if the head bumps at the end of
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the scan area.
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.PP
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If you own a scanner other than the ones listed above that works with this
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backend, please let me know this by sending the scanner's exact model name and
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the USB vendor and device ids (e.g. from
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.IR /proc/bus/usb/devices ,
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.I sane-find-scanner
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or syslog) to me. Even if the scanner's name is only slightly different from
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the models mentioned above, please let me know.
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.PP
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.SH KERNEL ISSUES
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If libusb-0.1.6 or later is installed, this section can be skipped. The
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scanner should be found by sane-find-scanner without further actions. For
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setting permissions and general USB information looks at
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.BR sane-usb (5).
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.PP
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The scanners based on the GT-6816 (Mustek BearPaw TA and BearPaw Plus models,
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the Packard Bell and the Lexmark scanner) need a Linux kernel 2.4.12 or newer.
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Recent 2.2 kernels may also work, but I haven't tested them. Older kernels or
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other operating systems won't work. Use libusb instead.
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.PP
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The scanners based on the GT-6801 (all other scanners) need Linux kernel
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2.4.21 or newer. Older kernels will not work.
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.SH FIRMWARE FILE
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You need a firmware file for your scanner. That's a small file containing
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software that will be uploaded to the scanner's memory. It's usually named
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*.usb, e.g.
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.IR PS1fw.usb .
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It comes on the installation CD that was provided by the manufacturer, but it
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may be packaged together with the installation program in an .exe file. For
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Mustek scanners, the file can be dowloaded from the gt68xx backend
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homepage. For other scanners, check the CD for .usb files. If everything else
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fails, you must install the Windows driver and get the firmware from there
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(usually in the
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.I windows/system
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or
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.I system32
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directories). Put that firmware file into
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.IR @DATADIR@/sane/gt68xx/ .
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.SH CONFIGURATION
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The contents of the
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.I gt68xx.conf
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file is a list of usb lines containing vendor and product ids that correspond
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to USB scanners. The file can also contain option lines. Empty lines and
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lines starting with a hash mark (#) are ignored. The scanners are
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autodetected by
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.B usb vendor_id product_id
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statements which are already included into
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.IR gt68xx.conf .
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"vendor_id" and "product_id" are hexadecimal numbers that identfy the
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scanner.
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.PP
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The
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.BR override ,
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.BR firmware ,
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.BR vendor ,
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.BR model ,
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and
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.B afe
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options must be placed after the
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.B usb
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line they refer to.
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.PP
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Option
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.B override
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is used to override the default model parameters. That's necessary for some
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scanners that use the same vendor/product ids but are different. For these
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scanners there are already commented out override lines in the configuration
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file.
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.B override "mustek-scanexpress-1200-ub-plus"
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is necessary for the Mustek Scanexpress 1200 UB Plus, the
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Medion/Lifetec/Tevion LT 9452, and the Trust Compact Scan USB 19200.
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.B override "artec-ultima-2000"
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is used for the Artec Ultima 2000, the Boeder SmartScan Slim Edition, the
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Medion/ Lifetec/ Tevion/ Cytron MD/LT 9385, the Medion/ Lifetec/ Tevion MD
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9458, and the Trust Flat Scan USB 19200.
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.B override "mustek-bearpaw-2400-cu"
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is necessary for the Mustek BearPaw 2400 CU. The
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.B override
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option must be the first one after the
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.B usb
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line.
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.PP
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Option
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.B firmware
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selects the name and path of the firmware file. It's only necessary if the
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default (or override) doesn't work. The default firmware directory is
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.IR @DATADIR@/sane/gt68xx/ .
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You may need to create this directory. If you want to place the firmware files
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at a different path, use a
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.B firmware
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line.
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.PP
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The
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.B vendor
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and
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.B model
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options are not absolutely necessary but for convenience. Quite a lot of
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scanners from different manufacturers share the same vendor/product ids so you
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can set the "correct" name here.
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.PP
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The
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.B afe
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option allows to set custom offset and gain values for the Analog FrontEnd of
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the scanner. This option can be either used to select the AFE values if
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automatic coarse calibration is disabled, or to make automatic coarse
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calibration faster. For the latter usage, enable debug level 3 (see below),
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scan an image and look for debug line string with "afe". Copy this line to
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.IR gt68xx.conf .
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The option has six parameters: res offset, red gain, green offset, green gain,
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blue offset, and blue gain.
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.PP
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A sample configuration file is shown below:
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.PP
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.RS
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usb 0x05d8 0x4002
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.br
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override "mustek-scanexpress-1200-ub-plus"
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.br
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firmware "/opt/gt68xx/SBfw.usb"
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.br
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vendor "Trust"
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.br
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product "Compact Scan USB 19200"
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.br
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afe 0x20 0x02 0x22 0x03 0x1f 0x04
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.RE
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.SH FILES
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.TP
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.I @CONFIGDIR@/gt68xx.conf
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The backend configuration file (see also description of
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.B SANE_CONFIG_DIR
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below).
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.TP
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.I @LIBDIR@/libsane-gt68xx.a
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The static library implementing this backend.
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.TP
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.I @LIBDIR@/libsane-gt68xx.so
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The shared library implementing this backend (present on systems that
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support dynamic loading).
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.SH ENVIRONMENT
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.TP
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.B SANE_CONFIG_DIR
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This environment variable specifies the list of directories that may
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contain the configuration file. Under UNIX, the directories are
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separated by a colon (`:'), under OS/2, they are separated by a
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semi-colon (`;'). If this variable is not set, the configuration file
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is searched in two default directories: first, the current working
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directory (".") and then in @CONFIGDIR@. If the value of the
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environment variable ends with the directory separator character, then
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the default directories are searched after the explicitly specified
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directories. For example, setting
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.B SANE_CONFIG_DIR
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to "/tmp/config:" would result in directories "tmp/config", ".", and
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"@CONFIGDIR@" being searched (in this order).
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.TP
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.B SANE_DEBUG_GT68XX
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If the library was compiled with debug support enabled, this
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environment variable controls the debug level for this backend. Higher
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debug levels increase the verbosity of the output.
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Example:
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export SANE_DEBUG_GT68XX=4
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.SH "SEE ALSO"
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.BR sane (7),
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.BR sane-usb (5),
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.BR sane-artec_eplus48u (5)
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.BR sane-plustek (5),
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.BR sane-ma1509 (5),
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.BR sane-mustek_usb (5),
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.BR sane-mustek (5),
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.BR sane-mustek_pp (5)
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.br
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.I @DOCDIR@/gt68xx/gt68xx.CHANGES
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.br
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.I http://www.meier-geinitz.de/sane/gt68xx
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.SH AUTHOR
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Henning Meier-Geinitz <henning@meier-geinitz.de>
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.br
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The original gt68xx driver was written by Sergey Vlasov, Andreas Nowack, and
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David Stevenson. Thanks for sending patches and answering questions to them
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and all the other contributors.
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.SH BUGS
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Currently scanning seems to only work reliably under Linux. With FreeBSD,
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NetBSD and OpenBSD scanning with the GT-6801 based scanners works only
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once. Then the scanner isn't detected anymore and has to be replugged. The
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GT-6816 based scanners don't work at all for yet unknown reasons.
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.PP
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The first few lines of the image are garbage for the 2400 TA
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Plus.
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.PP
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The images are too dark for some scanners, especially in TA mode. Maybe
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add a gamma option?
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.PP
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Interpolation should be used instead of just copying data, when the X- and
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Y-resolution differ.
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.PP
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Support for buttons is missing.
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.PP
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More detailed bug information is available at the gt68xx backend homepage
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.IR http://www.meier-geinitz.de/sane/gt68xx .
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Please contact me if you find a bug or missing feature:
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<henning@meier-geinitz.de>
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