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<title>sane-devel: Re: Two SCSI bus question...</title>
<h1>Re: Two SCSI bus question...</h1>
<a href="mailto:becka@rz.uni-duesseldorf.de"><i>becka@rz.uni-duesseldorf.de</i></a><br>
<i>Tue, 9 Dec 1997 15:20:17 +0100 (MET)</i>
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<i>&gt; The topic of having multiple SCSI buses has surfaced before, but</i><br>
<i>&gt; my curiousity is how the /dev/(scanner) is assigned to a device.</i><br>
<i>&gt; SCSI disks are simple, they're assigned in the order that they</i><br>
<i>&gt; are detected (unless configured otherwise in the kernel). But,</i><br>
<i>&gt; my scanner device seems to waffle around depending on whether or</i><br>
<i>&gt; not some other devices are turned on/off at boot time. Any ideas???</i><br>
<p>
All detected devices are assigned a raw-device in the order in which they <br>
are detected. Scanning the busses goes dev-id first, then bus-id.<br>
<p>
Thus you first get all devices on the first bus, then all on the second,<br>
each in order of the SCSI IDs.<br>
<p>
Thus your scanner wanders whenever a device that is below it in that ordering<br>
scheme is there or not.<br>
<p>
CU,Andy<br>
<p>
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--
Andreas Beck | Email : &lt;<a href="mailto:becka@sunserver1.rz.uni-duesseldorf.de">becka@sunserver1.rz.uni-duesseldorf.de</a>&gt;
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