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3.4 KiB
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<!-- received="Fri Sep 18 14:32:55 1998 PDT" -->
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<!-- sent="Fri, 18 Sep 1998 23:31:21 +0200 (CES)" -->
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<!-- name="Manfred Lemke" -->
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<!-- email="ukpr@rz.uni-karlsruhe.de" -->
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<!-- subject="Re: Rebop: Microtek V300" -->
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<!-- id="E0zK87g-0006Q8-00@rzstud2.rz.uni-karlsruhe.de" -->
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<!-- inreplyto="3602C852.5C0559C8@mindspring.com" -->
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<title>sane-devel: Re: Rebop: Microtek V300</title>
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<h1>Re: Rebop: Microtek V300</h1>
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<b>Manfred Lemke</b> (<a href="mailto:ukpr@rz.uni-karlsruhe.de"><i>ukpr@rz.uni-karlsruhe.de</i></a>)<br>
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<i>Fri, 18 Sep 1998 23:31:21 +0200 (CES)</i>
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<p>
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<ul>
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<li> <b>Messages sorted by:</b> <a href="date.html#131">[ date ]</a><a href="index.html#131">[ thread ]</a><a href="subject.html#131">[ subject ]</a><a href="author.html#131">[ author ]</a>
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<li> <b>Next message:</b> <a href="0132.html">C. Le Cannellier, Pdt LUG Normandie: "newbie trouble"</a>
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<li> <b>Previous message:</b> <a href="0130.html">Mike D.: "Rebop: Microtek V300"</a>
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</ul>
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According to Mike D.:<br>
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<i>> </i><br>
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<i>> As I'm sitting here at work, I realize I have another question.</i><br>
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<i>> I have seen and read of references to linking /dev/sg* to</i><br>
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<i>> /dev/scanner. After looking in my /dev directory, I notice that</i><br>
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<i>> there are devices for sga through sge.</i><br>
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<i>> </i><br>
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<i>> So, which of those devices needs to be linked. I have, to</i><br>
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<i>> this point only tried /dev/sga. When I get home I'll try the</i><br>
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<i>> others, I guess. If this is in a FAQ or a manpage somewhere,</i><br>
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<i>> I guess I missed it entirely.</i><br>
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<p>
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The /dev/sg? devices are the so-called "generic" SCSI devices<br>
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and programs use them to send specific, non-standard commands<br>
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to those SCSI devices.<br>
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<p>
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To activate those devices, you have to have "Generic SCSI<br>
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support" compiled into your kernel.<br>
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<p>
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Afterwards, the devices are mapped to the generic SCSI devices<br>
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in their order of recognition, i.e. usually sorted by SCSI ID.<br>
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A "dmesg" will usually give you a hint about which physical<br>
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device is linked to which generic device.<br>
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<p>
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As an example:<br>
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<p>
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If you have three SCSI devices with the following parameters:<br>
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<p>
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ID 0: harddisk<br>
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ID 2: CD ROM<br>
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ID 6: scanner<br>
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<p>
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Then the harddisk would be /dev/sga, the cd-rom would be /dev/sgb<br>
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and the scanner would be /dev/sgc.<br>
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<p>
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As a side note, those "generic SCSI devices" are also used to<br>
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properly access CD-ROM writers and other such "unusual" devices.<br>
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<p>
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Hope this helped you a bit,<br>
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<p>
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Manfred Lemke (<a href="mailto:ukpr@rz.uni-karlsruhe.de">ukpr@rz.uni-karlsruhe.de</a>)<br>
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<p>
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P.S.: Can anyone tell me how to contact the SANE developer team<br>
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for the Mustek backend? My scanner has a firmware release that's<br>
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not included in the "working" sections, but it almost works<br>
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(see my previous posting).<br>
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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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To unsubscribe: echo unsubscribe sane-devel | mail <a href="mailto:majordomo@mostang.com">majordomo@mostang.com</a>
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</pre>
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<!-- body="end" -->
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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0132.html">C. Le Cannellier, Pdt LUG Normandie: "newbie trouble"</a>
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<li> <b>Previous message:</b> <a href="0130.html">Mike D.: "Rebop: Microtek V300"</a>
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<!-- nextthread="start" -->
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</ul>
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