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<!-- received="Wed May 5 11:27:25 1999 PDT" -->
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<!-- sent="Wed, 5 May 1999 20:24:22 +0200 (METDST)" -->
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<!-- name="Andreas Czechanowski" -->
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<!-- email="m075@ins.uni-stuttgart.de" -->
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<!-- subject="RE: Mustek parallel scanner Linux driver" -->
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<!-- id="" -->
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<!-- inreplyto="000101be961a$b3713710$4b00000a@donnchadh" -->
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<title>sane-devel: RE: Mustek parallel scanner Linux driver</title>
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<h1>RE: Mustek parallel scanner Linux driver</h1>
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<b>Andreas Czechanowski</b> (<a href="mailto:m075@ins.uni-stuttgart.de"><i>m075@ins.uni-stuttgart.de</i></a>)<br>
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<i>Wed, 5 May 1999 20:24:22 +0200 (METDST)</i>
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<p>
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Hi Donnchadh,<br>
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<p>
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On Tue, 4 May 1999, Donnchadh Ó Donnabháin wrote:<br>
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<p>
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<i>> Hi Wojtek,</i><br>
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<i>> I haven't made much progress since then. If you want, I can send you</i><br>
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<i>> or anyone else the current source code. At the moment, all I have is</i><br>
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<i>> a Linux device driver which can read/write registers on the scanner ASIC</i><br>
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<i>> and a few simple test programs. The scanner has to be controlled at a very</i><br>
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<i>> low level. I am still trying to work out how to control the stepper motor.</i><br>
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<i>> I have been able to switch the lamp on/off detect whether the cover is</i><br>
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<i>> up/down and move the scanner head home. I have been looking at the Plustek</i><br>
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<i>> parallel port driver and my driver will need to do a lot of the same things.</i><br>
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<i>> I am 99% certain that I have correctly reverse engineered the low-level</i><br>
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<i>> protocol but I still need to work out what the internal scanner registers</i><br>
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<i>> mean. At the moment I don't use the parport driver and I need to clean up</i><br>
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<i>> some of the code.</i><br>
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<p>
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Oh my god ! Do the Mustek parallel port scanners have a own<br>
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microcontroller at all ? Or are they the "yet cheaper, yet lousier"<br>
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versions of the 600 II N, with only the ASIC and the ADC inside ?<br>
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(the 600 II N still has a 8031 type MCU)<br>
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<p>
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When do the $1.99 scanners come, whose stepper motors and CCD sensors<br>
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are directly connected to the PCI bus ? (Why bother with internal<br>
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intelligence, since everyWin has a Pentium-II with 450 MHz or better<br>
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and else the CPU is useless anyway with these Microsoft-Games.<br>
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<p>
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Good Luck !<br>
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<p>
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Andreas.<br>
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<p>
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<pre>
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--
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Dipl.-Ing. Andreas Czechanowski Fon: +49-711-685-7335
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<a href="mailto:andreas.czechanowski@ins.uni-stuttgart.de">andreas.czechanowski@ins.uni-stuttgart.de</a> Fax: +49-711-685-7311
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Institut fuer Netzwerk- und Systemtheorie Pfaffenwaldring 47
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Universitaet Stuttgart 70550 Stuttgart
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<p>
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<p>
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<pre>
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--
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Source code, list archive, and docs: <a href="http://www.mostang.com/sane/">http://www.mostang.com/sane/</a>
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</pre>
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