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<!-- received="Sat Aug 1 19:11:23 1998 PDT" -->
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<!-- sent="Sat, 1 Aug 1998 19:09:48 -0100 (GMT+1)" -->
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<!-- name="Norman Uhlmann" -->
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<!-- email="unicorn@unicorn.franken.de" -->
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<!-- subject="Re: segfault with Microtek Scanmaker 330" -->
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<!-- inreplyto="19980728225134.2462.qmail@aquila.muc.de" -->
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<title>sane-devel: Re: segfault with Microtek Scanmaker 330</title>
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<h1>Re: segfault with Microtek Scanmaker 330</h1>
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<b>Norman Uhlmann</b> (<a href="mailto:unicorn@unicorn.franken.de"><i>unicorn@unicorn.franken.de</i></a>)<br>
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<i>Sat, 1 Aug 1998 19:09:48 -0100 (GMT+1)</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#2">[ date ]</a><a href="index.html#2">[ thread ]</a><a href="subject.html#2">[ subject ]</a><a href="author.html#2">[ author ]</a>
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<li> <b>Next message:</b> <a href="0003.html">Hugo van der Kooij: "Re: segfault with Microtek Scanmaker 330"</a>
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<li> <b>Previous message:</b> <a href="0001.html">Oliver Rauch: "Re: SANEI_THREAD proposal"</a>
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</ul>
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On Wed, 29 Jul 1998, Bernd Schroeder wrote:<br>
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<p>
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<i>> Good to hear that a mode exists that works for you. However, the</i><br>
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<i>> problem that the backend returns an error for bigger buffer sizes still</i><br>
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<i>> exists. </i><br>
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<p>
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No it doesn't :-))<br>
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sane-0.74<br>
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#define SG_BIG_BUFF 131072<br>
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<p>
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and I am able to scan :-))<br>
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<br>
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<i>> > After that I got brave and compiled with</i><br>
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<i>> > sg.h #define SG_BIG_BUFF 512000 but</i><br>
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<i>> > it doesn't work :-((.</i><br>
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<i>> </i><br>
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<i>> To my knowledge the maximum value for SG_BIG_BUFF is 128KB - 0.5KB.</i><br>
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<p>
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Okay that's the way I have to understand the SCSI-HOWTO :-)<br>
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+ generic header as well as the command block on input. SG_BIG_BUFF can<br>
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+ be safely increased upto (131072 - 512). <br>
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though it is 512000bytes :-)<br>
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<p>
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Okay, but in sane-0.74 there is no support for ScanMaker 330, but it<br>
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is no problem. <br>
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Here is the diff output, but I don't know how to build a patch with it.<br>
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Perhaps someone can do it for me :-?<br>
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<p>
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<pre>
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---
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bash$ diff microtek2.c.old microtek2.c
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1638a1639,1641
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> case 0x93 :
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> *model_string = "ScanMaker 330";
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> break;
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1794a1798
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> case 0x93: fprintf(stderr, "ScanMaker 330"); break;
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<pre>
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---
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With it it works ok.
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<p>
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Further question.
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<p>
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My scanner seems to scan some centimeters and the goes back a little
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and scan further. Is it normal, I fear about the mechanic of
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the scanner. Especially with high resolutions and 24bit depth.
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<p>
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Greetings Unicorn
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<p>
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A unicorn slowly drifts downward to you
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speaks to you with the loveliest voice
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you have ever heard, and vanishes into nothing
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You feel happy!
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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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</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="0003.html">Hugo van der Kooij: "Re: segfault with Microtek Scanmaker 330"</a>
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<li> <b>Previous message:</b> <a href="0001.html">Oliver Rauch: "Re: SANEI_THREAD proposal"</a>
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