sane-project-website/old-archive/2001-04/0045.html

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<TITLE>sane-devel: Re: Microtek ScanMaker E3 Plus - Parallel Port - wo</TITLE>
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<META NAME="Subject" CONTENT="Re: Microtek ScanMaker E3 Plus - Parallel Port - working!">
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<H1>Re: Microtek ScanMaker E3 Plus - Parallel Port - working!</H1>
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<STRONG>From:</STRONG> Karsten Festag (<A HREF="mailto:karsten.festag@t-online.de?Subject=Re:%20Microtek%20ScanMaker%20E3%20Plus%20-%20Parallel%20Port%20-%20working!&In-Reply-To=&lt;3ACCCBCC.16D20698@t-online.de&gt;"><EM>karsten.festag@t-online.de</EM></A>)<BR>
<STRONG>Date:</STRONG> Thu Apr 05 2001 - 12:47:24 PDT
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Hi Adam and Marcel,
<BR>
<P>I looked through some config files which come with the windows driver, both
<BR>
model codes 90 and 92 are listed for the Scanmaker E3+. Looks like they are
<BR>
identical or at least very similar.
<BR>
<P>The patch overwrites the modelcode that the backend reads out of the scanner
<BR>
(90) with 92. There is another function that uses the model code to list the
<BR>
type of scanner, so it thinks 90=92. Normally I would add the 90 to this
<BR>
function too. I will do that in my backend version which I will release to
<BR>
CVS in the next future.
<BR>
<P>Greetings
<BR>
<P>Karsten
<BR>
<P><P>Adam Benjamin wrote:
<BR>
<P><EM>&gt;
</EM><BR>
<EM>&gt; &gt; If I remember correctly, some time ago someone used also a scanner with
</EM><BR>
<EM>&gt; &gt; modelcode 90, but after patching the backend, it still didn't work.
</EM><BR>
<EM>&gt; &gt; Maybe that's the reason it was left out of the backend. Because there
</EM><BR>
<EM>&gt; &gt; were other issues with this backend.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; Not sure. My assumption was that they had already coded the
</EM><BR>
<EM>&gt; instructions for the E3+ and I knew mine was an E3+ - hence it seemed
</EM><BR>
<EM>&gt; safe to kludge mine to being recognized as model code 92. I would
</EM><BR>
<EM>&gt; also guess that this is not necessarily safe in the general case as
</EM><BR>
<EM>&gt; perhaps there are other model code 90 Microtek2 scanners that are not
</EM><BR>
<EM>&gt; E3+.
</EM><BR>
<EM>&gt;
</EM><BR>
<EM>&gt; &gt; &gt; + case 0x90:
</EM><BR>
<EM>&gt; &gt; &gt; + mi-&gt;model_code = 0x92;
</EM><BR>
<EM>&gt; &gt; &gt; + *model_string = &quot;E3+ / Vobis HighScan&quot;;
</EM><BR>
<EM>&gt; &gt; &gt; + break;
</EM><BR>
<EM>&gt; &gt;
</EM><BR>
<EM>&gt; &gt; I'm no programmer, so maybe this is a stupid question, but the line:
</EM><BR>
<EM>&gt; &gt; &gt; + mi-&gt;model_code = 0x92;
</EM><BR>
<EM>&gt; &gt; What does it do?
</EM><BR>
<EM>&gt;
</EM><BR>
<P><P><P><P><PRE>
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