SANE backend TECO2

SANE Backend TECO2 - VM3575 / VM6565 / VM6575 / VM6586

Author: me
Credits goes to:
    Gerard Klaver (http://gkall.hobby.nl/notes1.html ) for his relentless VM3575 testings.
    Mark Plowman for providing the first SCSI traces from a VM3575.
    Andreas Klaedtke for providing the first SCSI traces from a VM6586 and for his testing, and Stefan von Dombrowski for his testing.
    Nicolas Peyresaubes for providing the first SCSI traces from a VM656A and for his testing.
Dave Parker for testing the support for the VM6575.

2002-10-07
Synchronised driver with the one in the sane CVS tree.
teco2.c teco2.h

2002-09-05
More resolutions for the vm6586. Added dithering and threshold options.

2002-08-29

New diff against the CVS tree, in preparation for integration.
sane-teco2-20020829.diff.gz

2002-08-28

Hopefully fixed incorrect colors on top and bottom for VM3575 and VM6586.

2002-08-22

Fixed color plane shifts for the VM6586. Only 50, 150, 300 and 600 dpi are supported.

2002-08-11, 2

The VM6586 behaves much like the VM3575 in regard with the color shifts.

2002-08-11
Fixed a stupid crash when scanning in BW and Gray. Fixed a couple more buglets.

2002-08-07
Final support for the VM6575. One more working resolution for the VM3575.
teco2.c teco2.h teco2.conf

2002-07-27
Added raw_output variable to get a raw output from the scanner.

2002-07-26
Better support for VM6575

2002-07-24
Full support for the VM656A.
Preliminary support (untested) for the VM6575.

2002-06-13
Better support for the VM6586 (I think).

2002-05-31
New scanner Apollo Express 6 (VM656A). Patch for SANE 1.0.8.
sane-teco2-20020531.diff.gz

2002-05-14
May be some color fixes. The wrong color lines at the top and the bottom should have disappeared.

2002-04-09
Calibration fixes for the VM6586. teco2.c teco2.h

2002-04-04
Added (untested) support for the TECO VM6586 (which was sold under the names Relisys Scorpio Pro-S and Primax Profi 19200).
Status:
    - black and white ok
    - gray produces some wrong colors depending on the color filter used.
    - color in 100dpi looks mostly okay, with the exeption than the first few lines are wrong. Other resolution have some color skewing.
    - gamma table implemented, not tested

    sane-teco2-20020404.diff.gz

2002-04-02

This new teco2.c (apply on top of sane-teco2-20020330.diff.gz) seems to fix the scsi crashes (so probably also the preview mode crashes). Color mode only works correctly in 100 dpi.

2002-03-30
Current status:
    - black and white ok
    - gray produces some wrong colors; this might be due to the color filter
    - color looks mostly okay, with the exeption than the first few lines are wrong
    - no more black vertical lines, which means than the calibration is mostly correct
    - gamma table implemented, not tested
    - color filter for black&white and grayscale modes, not tested
    - still (?) some linux crashes in preview mode.

    sane-teco2-20020330.diff.gz

2002-03-24
New diff. This one includes the calibration and the color skewing correction.

sane-teco2-20020324.diff.gz

2002-03-23
First scan success report from Gerard Klaver (http://gkall.hobby.nl/notes1.html ).

2002-03-21
Got some traces from Mark Plowman. Started the new backend.
Apply the patch against SANE 1.0.7. It is totaly untested right now. In theory it should work; but in reality the scanner might not even be detected.
If the scanner is not detected, try to start the backend with something like xscanimage teco2:/dev/scanner
If it does not work or does something strange, set the variable SANE_DEBUG_TECO2 to 128 and send me a report. Also send any usefull information.
And keep a finger on the power switch.

current status:
- UNTESTED
- B&W, Grayscale and Color mode are implemented

sane-teco2-20020321.diff.gz (for SANE 1.0.7)

fzago at austin dot rr dot com
Speaking French and English.