kopia lustrzana https://gitlab.com/sane-project/backends
Stéphane Voltz
rodzic
425a3d034d
commit
fa2f9968e6
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@ -1,3 +1,8 @@
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2008-12-11 Stéphane Voltz <stef.dev@free.fr>
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* backend/rts8891.c doc/sane-rts8891.man doc/descriptions/rts8891.desc:
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scan register setting fix, documentation update
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2008-12-10 m. allan noah <kitno455 a t gmail d o t com>
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* backend/fujitsu.[ch]: backend v85
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- round pixels_per_line down to arbitrary limits for fi-4990 & fi-4860
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@ -6358,7 +6358,7 @@ send_calibration_data (struct Rts8891_Session *session)
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}
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/* signals color format/divisor from hardware */
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rts8891_data_format (dev->xdpi, dev->sensor);
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format=rts8891_data_format (dev->xdpi, dev->sensor);
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status = sanei_rts88xx_write_reg (dev->devnum, 0xd3, &format);
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/* for some reason, we have to add 6 to the size for the first write */
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@ -48,4 +48,5 @@
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:model "scanjet 4400c"
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:interface "USB"
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:usbid "0x03f0" "0x0705"
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:status :untested
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:status :good
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:comment "exists with 2 different sensors of which only one works"
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@ -1,24 +1,23 @@
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.TH "sane\-rts8891" "5" "14 Jul 2008" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
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.IX sane\-rts8891
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.TH "sane\-rts8891" "5" "8 Dec 2008" "@PACKAGEVERSION@" "SANE Scanner Access Now Easy"
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.SH "NAME"
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sane\-rts8891 \- SANE backend for Umax Astra 4400/4450 and Hewlett-Packard Scanjet 4470c scanners
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sane\-rts8891 \- SANE backend for rts8891 based scanners
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.SH "DESCRIPTION"
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The
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.B sane\-rts8891
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library implements a SANE (Scanner Access Now Easy) backend that
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provides access to scanner based on Realtek RTS8891 ASIC.
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provides access to scanners based on the rts8891 ASIC.
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.PP
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The scanners that should work with this backend are:
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The scanners that work with this backend are:
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.PP
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.RS
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.ft CR
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.nf
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Vendor Model status
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\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-
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Umax 4400 good
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Umax 4450 untested
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HP 4470c good re-badged Astra 4400
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HP 4400c untested
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Umax Astra 4400 untested
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Umax Astra 4450 untested
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HP scanjet 4000c good
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HP scanjet 4470c good
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.fi
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.ft R
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.RE
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@ -42,31 +41,29 @@ scanimage \-\-help \-d rts8891
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.TP
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.B \-\-mode
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selects the basic mode of operation of the scanner valid choices are
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.IR auto ,
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.IR Color ,
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.I R Color ,
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.I Gray
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and
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.I Lineart
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The default or automatic mode is Color. The Lineart mode is black and white only (1 bit).
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Grayscale will produce 256 levels of gray (8 bits). Gray and Lineart mode are emulated.
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Color mode allows for over 16 million different colors produced from 24 bits of color information.
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The default mode is Color. The Lineart mode is black and white only (1 bit).
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Grayscale will produce 256 levels of gray (8 bits). Color mode allows for over
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16 million different colors produced from 24 bits of color information.
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.TP
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.B \-\-resolution
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selects the resolution for a scan. The horizontal and vertical resolutions are set
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by the value of this option. Default value is 150 dpi, automatic value is 75 dpi.
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The scanner is capable of the following resolutions for the specified option value:
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by the value of this option. The scanner is capable of the following resolutions for the specified option value:
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.PP
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.RS
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.ft CR
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.nf
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Value Hor. Resolution Vert. Resolution
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\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\- \-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-\-
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75 75dpi 150dpi lines are averaged to match dpi
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150 150dpi 150dpi
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300 300dpi 300dpi
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600 600dpi 600dpi
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1200 1200dpi 600dpi lines are duplicated to match dpi
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75 75dpi 75dpi
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150 150dpi 150dpi
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300 300dpi 300dpi
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600 600dpi 600dpi
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1200 1200dpi 1200dpi
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.fi
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.ft R
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.RE
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@ -75,69 +72,46 @@ The scanner is capable of the following resolutions for the specified option val
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.B \-\-preview
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requests a preview scan. The resolution used for that scan is 75 dpi
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and the scan area and the scan mode are as specified through their options,
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or the default if not specified. The default and automatic value for preview mode is "no".
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.TP
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.B Image Enhancement Options
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or the default if not specified. The default value for preview mode is "no".
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.TP
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.B \-\-threshold
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selects the minimum-brightness to get a white point. The threshold is only used with Lineart mode scans.
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selects the minimum\-brightness to get a white point. The threshold is only used with Lineart mode scans.
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It is specified as a percentage in the range 0..100% (in steps of 1).
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The default or automatic value of the threshold option is 50.
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The default value of the threshold option is 50.
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.TP
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.B \-\-custom\-gamma
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allows the user to specify a gamma table (see gamma-table options). The default and automatic
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value is 'no'.
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.TP
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.B \-\-gamma\-table
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(gray and lineart modes) can be used to download a user defined
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gamma table for the gray channel. The table must be 256 SANE_Word long.
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Valid values are in the [0..255] range.
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The automatic or default value is a builtin gamma table. This option
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is active only if custom\-gamma is set to yes.
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.TP
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.B \-\-red\-gamma\-table
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(color mode only) can be used to download a user defined
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gamma table for the red channel. The table must be 256 SANE_Word long.
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Valid values are in the [0..255] range.
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The automatic or default value is a builtin gamma table. This option
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is active only if custom\-gamma is set to yes.
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.TP
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.B \-\-green\-gamma\-table
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(color mode only) can be used to download a user defined
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gamma table for the green channel. The table must be 256 SANE_Word long.
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Valid values are in the [0..255] range.
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The automatic or default value is a builtin gamma table. This option
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is active only if custom\-gamma is set to yes.
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.TP
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.B \-\-blue\-gamma\-table
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(color mode only) can be used to download a user defined gamma table
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for the blue channel. The table must be 256 SANE_Word long.
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Valid values are in the [0..255] range.
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The automatic or default value is a builtin gamma table. This option
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is active only if custom\-gamma is set to yes.
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.TP
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.B Utility Options
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.TP
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.B \-\-lamp\-on
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this advanced option switches the lamp on. It is a set only option.
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.TP
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.B \-\-lamp\-off
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this advanced option switches the lamp off. It is a set only option.
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.SH "CONFIGURATION FILE"
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The configuration file @CONFIGDIR@/rts8891.conf contains only the usb device id (eg usb 0x043d 0x007c).
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The configuration file
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.B @CONFIGDIR@/rts8891.conf
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contains the usb device ids of supported scanners (eg usb 0x043d 0x007c) and scanner configuration options.
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Empty lines and lines starting with a hash mark (#) are
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ignored.
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.PP
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The two options supported are
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.B allowsharing
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,
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.B modelnumber
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.
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Option
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.PP
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.B allowsharing
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enables or not the sharing of the scanner between multiple frontends at the same time.
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.PP
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.B modelnumber
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is used to force the reported model by the backend and is only usefull in the case of a scanner which NVRAM has been erased.
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.RS
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.ft CR
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.nf
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0 to report a HP4470c.
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1 to report a HP4400c.
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2 to report an Astra 4400.
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.fi
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.ft R
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.RE
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.PP
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.SH "FILES"
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.TP
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.I @LIBDIR@/libsane\-rts8891.a
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@ -150,48 +124,36 @@ support dynamic loading).
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.SH "ENVIRONMENT"
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.TP
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.B SANE_DEBUG_RTS88XX_LIB
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rts88xx library debugging messages control.
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.TP
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.B SANE_DEBUG_RTS8891_LOW
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rts8891 low-level access debugging messages control.
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.TP
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.B SANE_DEBUG_RTS8891
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rts8891 backend debugging messages control.
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.br
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.br
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If the library or backend was compiled with debug support enabled, these
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.B SANE_DEBUG_RTS8891 SANE_DEBUG_RTS8891_LOW SANE_DEBUG_RTS88XX_LIB
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If the library was compiled with debug support enabled, these
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environment variables controls the debug level for this backend. E.g.,
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a value of 255 requests all debug output to be printed. Smaller levels
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reduce verbosity. Higher levels of debugging also gives PNM files holding
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data scanned at various stages of calibration and during final scan. In case
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you find a bug and want ot report about it, it is recommended to reproduce
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the bug whit these values set to 255, and join the debugging output to the
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report.
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reduce verbosity.
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.SH "LIMITATIONS"
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There is no support for transparency adaptor.
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Scanners of the same model exist with different sensors, due to lack of data
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(ie USB logs) some sensors are better supported than others. At least 75 dpi
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mode is working for any model. Sharing the a scanner between several frontends
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at the same time may not work on some USB controllers.
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.PP
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XPA is no (yet) supported.
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.SH "BUGS"
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.br
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No bugs are currently known. In case you find a bug, you may report it to the maintainer,
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the sane\-devel mailing list or fill a bug report at
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https://alioth.debian.org/tracker/?atid=410366&group_id=30186&func=browse
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No bugs currently known.
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.SH "SEE ALSO"
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sane\-usb(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
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sane\-scsi(5), scanimage(1), xscanimage(1), xsane(1), sane(7)
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.SH "AUTHOR"
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.TP
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This backend is currently developped by Stéphane Voltz.
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This backend has been developped by Stéphane Voltz.
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.I http://stef.dev.free.fr/sane/rts8891
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.SH "CREDITS"
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.TP
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Many thanks go to:
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Laurent Fournier who lent me his scanjet 4470c.
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Henry Wieland for the time spent recording USB activity and testing the experimental version.
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The ASIC registers analysis by Troy Rollo and Johannes Hub did provide me of some important
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hints on the operation of the RTS8891.
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Laurent Fournier who donated me a HP4470c.
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Vladimir Sysoev and "TheUnruly Squash" for the time they spent recording
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USB activity and testing the experimental version on HP4400 models.
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