Hello all
I am trying to get a Umax 2000p scanner to work with my Ubuntu
installation. So far no luck - I keep getting
an error message which seems to indicate the SANE frontend or maybe the
backends were not compiled with an option.
This is the error:
frank@ubuntu:~$ xsane
[umax_pp_low] sanei_umax_pp_InitPort cannot use direct hardware access
[umax_pp_low] if not compiled with --enable-parport-directio
In googling the problem it seems there are 2 ways of accessing the parallel
port directly or through ppdev. However when I load that module (sudo modprobe
ppdev) I am no further ahead.
I also tried downloading the sources and compiling but when it came to
compiling the front end it failed because it seems to think the backends have
not been compiled, when in fact they have been. I am using Ubuntu Dapper and
Edgy but both distributions give me the same error. Is it possible to use a
Debian distros files ? Is there any other way to resolve this ?
Thanks
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From m...@gmx.net Sun Dec 31 14:40:56 2006
From: m...@gmx.net (Maximilian Fabricius)
Date: Sun Dec 31 14:41:04 2006
Subject: [sane-devel] Plustek Optic Slim 2420
Message-ID: <88b277e60612310540q167702fcwcd81d7322e46f...@mail.gmail.com>
Hi all,
I have been working on trying to get the OpticSlim 2420 to work.
Is disassembled the scanner (hardware) and made pictures. they may be found here
http://rosa.physik.tu-berlin.de/~mxhf/OS2420/
They are fairly high resolution ~1MB per image so that you can see all
details. lease excuse the German on the navigation bar.
>From this I learned that the scanner has a GL842 chip (not GL841). The
GL842 seems
to be very similar to the 841 though as a quick scan through the data
sheet revealed.
So far I cloned the ST24 section in genesys_gl841 and
I got as far as being able to execute "tstbackend -l0" without getting an error.
I had to comment the Init_Devices lines 4990-4993 in genesys_gl841.c.
I am somewhat stuck now. Starting scanimage results in strange noise
from the scanner.
Does anybody have more information? On the protocol maybe?
>From USB snoopy I found that there are some USB control messages which
are not documented yet:0x8c 0x8e ...Any ideas?
Finally Plustek agreed to provide me with infrmation if I singn their
NDA (non disclosure agreement). Do you have any feeling about that? Is
that standard? Do I sell my soul?
Max
