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<TITLE>sane-devel: Re: Acer 640U: is it wrecked?</TITLE>
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<META NAME="Author" CONTENT="Christian Nassau (nassau@math.uni-frankfurt.de)">
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<META NAME="Subject" CONTENT="Re: Acer 640U: is it wrecked?">
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<H1>Re: Acer 640U: is it wrecked?</H1>
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<!-- received="Wed Feb 7 02:18:54 2001" -->
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<!-- sent="Wed, 07 Feb 2001 11:18:49 +0100" -->
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<!-- isosent="20010207101849" -->
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<!-- name="Christian Nassau" -->
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<!-- email="nassau@math.uni-frankfurt.de" -->
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<!-- subject="Re: Acer 640U: is it wrecked?" -->
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<!-- id="200102071018.LAA17754@newton.math.uni-frankfurt.de" -->
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<!-- inreplyto="20010206161242.4064e4e2.snowsquirrel@home.com" -->
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<STRONG>From:</STRONG> Christian Nassau (<A HREF="mailto:nassau@math.uni-frankfurt.de?Subject=Re:%20Acer%20640U:%20is%20it%20wrecked?&In-Reply-To=<200102071018.LAA17754@newton.math.uni-frankfurt.de>"><EM>nassau@math.uni-frankfurt.de</EM></A>)<BR>
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<STRONG>Date:</STRONG> Wed Feb 07 2001 - 02:18:49 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0057.html">Ferry Dave Jaeckel: "Re: choice of scanner"</A>
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<UL>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0055.html">Kees Lemmens: "Re: choice of scanner"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0049.html">Shea Martin: "Re: Acer 640U: is it wrecked?"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0062.html">Sebastien Sable: "Re: Acer 640U: is it wrecked?"</A>
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Apparently the "measure_transferrate" routine doesn't work
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<BR>
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with your scanner (or usb firmware?). The problem with this routine
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<BR>
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is that it uses a vendor specific extension of the scsi-read
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<BR>
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instruction and there is no documentation about its proper use
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<BR>
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available. (I'm quite mystified by its behaviour on my Acer
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<BR>
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Scanprisa 640S)
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<BR>
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<P>The good thing is that this routine might not be absolutely necessary.
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<BR>
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You could look into snapscan.c and uncomment the lines (in the
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<BR>
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routine sane_start)
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<BR>
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<BR>
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status = measure_transfer_rate(pss);
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<BR>
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CHECK_STATUS (status, me, "measure_transfer_rate");
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<BR>
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<P>At least you should then get a different error (or the same error,
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<BR>
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but at a different place...)
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<BR>
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<P>Good luck,
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<BR>
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<P>Christian
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<BR>
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<P><P><P><P><P><P><P><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?Subject=Re:%20Acer%20640U:%20is%20it%20wrecked?&In-Reply-To=<200102071018.LAA17754@newton.math.uni-frankfurt.de>">majordomo@mostang.com</A>
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</PRE>
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<!-- next="start" -->
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<LI><STRONG>Next message:</STRONG> <A HREF="0057.html">Ferry Dave Jaeckel: "Re: choice of scanner"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0055.html">Kees Lemmens: "Re: choice of scanner"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0049.html">Shea Martin: "Re: Acer 640U: is it wrecked?"</A>
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<!-- nextthread="start" -->
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0062.html">Sebastien Sable: "Re: Acer 640U: is it wrecked?"</A>
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<EM>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Wed Feb 07 2001 - 02:20:50 PST</EM>
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