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75 wiersze
3.7 KiB
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75 wiersze
3.7 KiB
HTML
<!-- received="Mon May 5 08:53:48 1997 MST" -->
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<!-- sent="Mon, 05 May 1997 11:34:45 -0400" -->
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<!-- name="Michael K. Johnson" -->
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<!-- email="johnsonm@redhat.com" -->
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<!-- subject="Re: turning off scanner-lamp" -->
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<!-- id="199705051534.LAA27043@tristan.redhat.com" -->
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<!-- inreplyto="turning off scanner-lamp" -->
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<title>sane-devel: Re: turning off scanner-lamp</title>
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<h1>Re: turning off scanner-lamp</h1>
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<b>Michael K. Johnson</b> (<a href="mailto:johnsonm@redhat.com"><i>johnsonm@redhat.com</i></a>)<br>
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<i>Mon, 05 May 1997 11:34:45 -0400</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#109">[ date ]</a><a href="index.html#109">[ thread ]</a><a href="subject.html#109">[ subject ]</a><a href="author.html#109">[ author ]</a>
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<li> <b>Next message:</b> <a href="0110.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Previous message:</b> <a href="0108.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Maybe in reply to:</b> <a href="0107.html">Andy Thaller: "turning off scanner-lamp"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0110.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Reply:</b> <a href="0110.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Reply:</b> <a href="0112.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Reply:</b> <a href="0113.html">Mathias Weigt: "Re: turning off scanner-lamp"</a>
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<!-- reply="end" -->
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</ul>
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<!-- body="start" -->
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Andy Thaller writes:<br>
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<i>>Or can the scsi-system cope with the scanner being turned off and on</i><br>
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<i>>during runtime?</i><br>
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<p>
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I turn my Umax scanner off and on while the computer is running, and<br>
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haven't had any problems. No promises, of course.<br>
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<p>
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You can tell Linux to re-probe for a device at a specific location by<br>
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echoing something to /proc/scsi/scsi -- here's a snip from<br>
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/usr/src/linux/drivers/scsi/scsi.c:<br>
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<p>
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* Usage: echo "scsi add-single-device 0 1 2 3" >/proc/scsi/scsi<br>
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* with "0 1 2 3" replaced by your "Host Channel Id Lun".<br>
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* Consider this feature BETA.<br>
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* CAUTION: This is not for hotplugging your peripherals. As<br>
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* SCSI was not designed for this you could damage your<br>
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* hardware !<br>
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* However perhaps it is legal to switch on an<br>
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* already connected device. It is perhaps not<br>
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* guaranteed this device doesn't corrupt an ongoing data transfer.<br>
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<p>
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You should only need to do this if the scanner wasn't on (or ready)<br>
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when you booted.<br>
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<p>
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michaelkjohnson<br>
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<p>
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"Ever wonder why the SAME PEOPLE make up ALL the conspiracy theories?"<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.azstarnet.com/~axplinux/sane/">http://www.azstarnet.com/~axplinux/sane/</a>
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To unsubscribe: mail -s unsubscribe <a href="mailto:sane-devel-request@listserv.azstarnet.com">sane-devel-request@listserv.azstarnet.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="0110.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Previous message:</b> <a href="0108.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Maybe in reply to:</b> <a href="0107.html">Andy Thaller: "turning off scanner-lamp"</a>
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<!-- nextthread="start" -->
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<li> <b>Next in thread:</b> <a href="0110.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Reply:</b> <a href="0110.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Reply:</b> <a href="0112.html">David Mosberger-Tang: "Re: turning off scanner-lamp"</a>
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<li> <b>Reply:</b> <a href="0113.html">Mathias Weigt: "Re: turning off scanner-lamp"</a>
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<!-- reply="end" -->
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</ul>
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