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<!-- received="Sun Aug 23 13:17:47 1998 PDT" -->
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<!-- sent="Sun, 23 Aug 1998 13:16:51 -0700" -->
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<!-- name="Kevin Dalley" -->
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<!-- email="kevind@rahul.net" -->
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<!-- subject="sane: Misleading error message when user has no permission for scanner" -->
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<!-- id="199808232016.NAA00533@aplysia.rahul.net" -->
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<title>sane-devel: sane: Misleading error message when user has no permission for scanner</title>
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<h1>sane: Misleading error message when user has no permission for scanner</h1>
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<b>Kevin Dalley</b> (<a href="mailto:kevind@rahul.net"><i>kevind@rahul.net</i></a>)<br>
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<i>Sun, 23 Aug 1998 13:16:51 -0700</i>
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<p>
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<li> <b>Next message:</b> <a href="0105.html">Dominique Pivard: "Re: Sane 0.74"</a>
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<li> <b>Previous message:</b> <a href="0103.html">Huub Reuver: "Starting problems with a mustek scanexpres 12000sp"</a>
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device<br>
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Mime-Version: 1.0 (generated by tm-edit 7.108)<br>
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Content-Type: text/plain; charset=US-ASCII<br>
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From: Kevin Dalley <<a href="mailto:kevind@rahul.net">kevind@rahul.net</a>><br>
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Date: 23 Aug 1998 13:16:43 -0700<br>
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Message-ID: <<a href="mailto:87d89rfo7o.fsf@aplysia.rahul.net">87d89rfo7o.fsf@aplysia.rahul.net</a>><br>
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Lines: 26<br>
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X-Mailer: Gnus v5.5/XEmacs 20.4 - "Emerald"<br>
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<p>
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Here is a bug reported by a Debian user of sane. The error message is<br>
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quite difficult to understand. It would be good to have a clearer<br>
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message.<br>
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<p>
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<p>
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<p>
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If the access permissions for the physical device are inadequate, scanimage<br>
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fails with a very misleading error message:<br>
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<p>
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$ scanimage -d hp:/dev/scanner --resolution=300dpi --mode Color > /tmp/ol.pnm<br>
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[sanei_init_debug]: Setting debug level of hp to 128.<br>
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[hp] attach: opening /dev/scanner<br>
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[hp] attach: open failed (Invalid argument)<br>
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[hp] attach: opening /dev/scanner<br>
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[hp] attach: open failed (Invalid argument)<br>
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scanimage: open of device hp:/dev/scanner failed: Invalid argument<br>
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<p>
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When the permissions on /dev/sgc were changed to 666, the problem<br>
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went away.<br>
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<p>
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Please change the error message to indicate the nature of any problem<br>
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encountered.<br>
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<p>
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<pre>
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--
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Kevin Dalley
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<a href="mailto:kevind@rahul.net">kevind@rahul.net</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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<p>
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<ul>
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<!-- next="start" -->
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<li> <b>Next message:</b> <a href="0105.html">Dominique Pivard: "Re: Sane 0.74"</a>
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<li> <b>Previous message:</b> <a href="0103.html">Huub Reuver: "Starting problems with a mustek scanexpres 12000sp"</a>
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