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<!-- received="Tue Dec 9 08:35:44 1997 PST" -->
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<!-- name="becka@rz.uni-duesseldorf.de" -->
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<!-- subject="Re: Two SCSI bus question..." -->
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<!-- id="m0xfQWI-0000Z5C@charon.beck-sw.de" -->
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<!-- inreplyto="199712091355.IAA07883@prospero.dma.isg.mot.com" -->
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<title>sane-devel: Re: Two SCSI bus question...</title>
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<h1>Re: Two SCSI bus question...</h1>
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<a href="mailto:becka@rz.uni-duesseldorf.de"><i>becka@rz.uni-duesseldorf.de</i></a><br>
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<i>Tue, 9 Dec 1997 15:20:17 +0100 (MET)</i>
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<p>
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<li> <b>Next message:</b> <a href="0051.html">Christoph Doerbeck: "Re: Two SCSI bus question..."</a>
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<li> <b>Previous message:</b> <a href="0049.html">Christoph Doerbeck: "Two SCSI bus question..."</a>
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<li> <b>In reply to:</b> <a href="0049.html">Christoph Doerbeck: "Two SCSI bus question..."</a>
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<li> <b>Next in thread:</b> <a href="0051.html">Christoph Doerbeck: "Re: Two SCSI bus question..."</a>
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<li> <b>Reply:</b> <a href="0051.html">Christoph Doerbeck: "Re: Two SCSI bus question..."</a>
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<i>> The topic of having multiple SCSI buses has surfaced before, but</i><br>
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<i>> my curiousity is how the /dev/(scanner) is assigned to a device.</i><br>
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<i>> SCSI disks are simple, they're assigned in the order that they</i><br>
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<i>> are detected (unless configured otherwise in the kernel). But,</i><br>
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<i>> my scanner device seems to waffle around depending on whether or</i><br>
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<i>> not some other devices are turned on/off at boot time. Any ideas???</i><br>
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<p>
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All detected devices are assigned a raw-device in the order in which they <br>
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are detected. Scanning the busses goes dev-id first, then bus-id.<br>
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<p>
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Thus you first get all devices on the first bus, then all on the second,<br>
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each in order of the SCSI IDs.<br>
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<p>
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Thus your scanner wanders whenever a device that is below it in that ordering<br>
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scheme is there or not.<br>
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<p>
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CU,Andy<br>
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<p>
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<pre>
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--
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Andreas Beck | Email : <<a href="mailto:becka@sunserver1.rz.uni-duesseldorf.de">becka@sunserver1.rz.uni-duesseldorf.de</a>>
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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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<li> <b>Next message:</b> <a href="0051.html">Christoph Doerbeck: "Re: Two SCSI bus question..."</a>
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<li> <b>Previous message:</b> <a href="0049.html">Christoph Doerbeck: "Two SCSI bus question..."</a>
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<li> <b>In reply to:</b> <a href="0049.html">Christoph Doerbeck: "Two SCSI bus question..."</a>
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<li> <b>Next in thread:</b> <a href="0051.html">Christoph Doerbeck: "Re: Two SCSI bus question..."</a>
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<li> <b>Reply:</b> <a href="0051.html">Christoph Doerbeck: "Re: Two SCSI bus question..."</a>
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