plustek: hp 2100c & sane 1.0.9 and up
Subject:
Re: hp 2100c & sane 1.0.9 and up
From:
Gerhard Jaeger ####@####.####
Date:
11 Feb 2003 08:31:20 -0000
Message-Id: <200302110921.24021.gerhard@gjaeger.de>
Hi Erik,
On Montag, 10. Februar 2003 22:27, ####@####.#### wrote:
> Hi.
>
> I tried to find out which release of the plustek driver works and which one
> does not.
good!
> Are there any other releases of the driver than the ones on the site? I
> would like to check all versions between 0.42 (the one shipped with sane
> 1.0.8) and 0.44.7 (shipped with sane 1.0.9). Is there only version 0.43.7
> to check?
No, not really....
There are some intermediate versions here! The biggest change was the
introduction of the motor and masteclock divider settings. It might help
to alter theses settings in plustek-devs.c (MODEL_HP) these values
have been adjusted according to the ones I got from the Windoze drivers!
If you check the 0.42, these settings have been done in the
plustek-usbshading.c file in function usb_doCalibration() - check for
MODEL_NOPLUSTEK, then you will find MCLK settings 3 for resolution > 300dpi
and 2 for <= 300dpi (color mode) and 9, 6 for monochrome stuff
you might also tweak the motor-control register settings (reg 0x56 and 0x57) -
compare between 0.42 and the current 0.45...
I guess the cause of your problems is somewhere there.
Another thing might be the calibration area....
Good luck and thanks for helping
Gerhard
