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<TITLE>sane-devel: Re: Problem with kernel 2.4ac9, ava1505, snapscan12</TITLE>
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<META NAME="Author" CONTENT="Henning Meier-Geinitz (hmg-ml@gmx.de)">
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<META NAME="Subject" CONTENT="Re: Problem with kernel 2.4ac9, ava1505, snapscan1236s, sane1.0.4">
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<H1>Re: Problem with kernel 2.4ac9, ava1505, snapscan1236s, sane1.0.4</H1>
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<!-- name="Henning Meier-Geinitz" -->
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<STRONG>From:</STRONG> Henning Meier-Geinitz (<A HREF="mailto:hmg-ml@gmx.de?Subject=Re:%20Problem%20with%20kernel%202.4ac9,%20ava1505,%20snapscan1236s,%20sane1.0.4&In-Reply-To=<20010116192729.A3030@vortex.swb.de>"><EM>hmg-ml@gmx.de</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue Jan 16 2001 - 10:27:29 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0159.html">Henning Meier-Geinitz: "Re: microtek scanmaker x6"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0157.html">Juraj Bednar: "microtek scanmaker x6"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0155.html">abel deuring: "Re: Problem with kernel 2.4ac9, ava1505, snapscan1236s, sane1.0.4"</A>
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<P>
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Hi,
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<BR>
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<P>On Tue, Jan 16, 2001 at 06:59:58PM +0100, abel deuring wrote:
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<BR>
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<EM>> wait_scanner_ready is one of the functions of the backend using the
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</EM><BR>
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<EM>> REQUEST SENSE command (probably the most important):
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</EM><BR>
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<P>Just to add one more data point: The Mustek backend also uses request
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<BR>
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sense directly (for the Paragon Pro scanners). It's issued in a loop
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after the scan has finished until the scan slider has moved back.
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<BR>
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That's the way the Windows driver does it (as far as I can see) and it
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<BR>
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seems to work at least with the controllers I tried. If I remove the
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<BR>
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explicit call, the scanner blocks immediately. If I remove the SCSI
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<BR>
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driver module in this case and turn off the scanner --> kernel oops.
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<BR>
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The only way to recover is to wait for the SCSI timeout (10 minutes)
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<BR>
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and don't touch anything or just reboot immediately. The same happens
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<BR>
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if I use test unit ready instead. So at the moment I don't know how to
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<BR>
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circumvent the direct calls to request sense.
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<BR>
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<P>Bye,
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<BR>
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Henning
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<BR>
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<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:%20Problem%20with%20kernel%202.4ac9,%20ava1505,%20snapscan1236s,%20sane1.0.4&In-Reply-To=<20010116192729.A3030@vortex.swb.de>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0159.html">Henning Meier-Geinitz: "Re: microtek scanmaker x6"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0157.html">Juraj Bednar: "microtek scanmaker x6"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0155.html">abel deuring: "Re: Problem with kernel 2.4ac9, ava1505, snapscan1236s, sane1.0.4"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Tue Jan 16 2001 - 10:28:35 PST</EM>
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