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<TITLE>sane-devel: Re: HP backend problem...</TITLE>
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<META NAME="Author" CONTENT="Peter Kirchgessner (peter@kirchgessner.net)">
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<META NAME="Subject" CONTENT="Re: HP backend problem...">
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<H1>Re: HP backend problem...</H1>
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<!-- received="Thu Aug 3 12:01:32 2000" -->
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<!-- name="Peter Kirchgessner" -->
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<!-- inreplyto="200007311907.OAA11832@scotty.petersohn.net" -->
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<STRONG>From:</STRONG> Peter Kirchgessner (<A HREF="mailto:peter@kirchgessner.net?Subject=Re:%20HP%20backend%20problem...&In-Reply-To=<3989C122.A1031713@kirchgessner.net>"><EM>peter@kirchgessner.net</EM></A>)<BR>
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<STRONG>Date:</STRONG> Thu Aug 03 2000 - 11:59:46 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0029.html">Nick Lamb: "Re: 620UT"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0088.html">Jens Petersohn: "Re: HP backend problem..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0088.html">Jens Petersohn: "Re: HP backend problem..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0209.html">Jens Petersohn: "Re: HP backend problem..."</A>
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Jens Petersohn wrote:
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<BR>
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Hi Jens,
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<BR>
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<P>I dont know how to solve the problem. But I think it must have something
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<BR>
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to do with the SCSI interface. The image looks like some bytes have been
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<BR>
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lost. Two of the strips in the image have exactly the same size of
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<BR>
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393216 Bytes == 384KB. One of strips is one byte more than 416KB. Both
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<BR>
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values are multiple of 32KB. If you have the sources of the hp-backend,
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<BR>
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you can try to change the value of HP_PIPEBUF in file hp-scl.c from
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<BR>
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32768 to 16384 or 4096. When the compilation was successful, you should
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<BR>
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see the new value in the log file with the messages "entering request to
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<BR>
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read num bytes" and "trying to read num bytes".
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<BR>
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I am not sure if this solves the problem and if so why.
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<BR>
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<P>--Peter
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<BR>
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<P><EM>>
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</EM><BR>
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<EM>> Hi all,
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> I couple of weeks ago I posted a message with a strange problem using
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</EM><BR>
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<EM>> the hp backend on an Adaptec 2940 card. A couple of people replied
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</EM><BR>
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<EM>> and I posted the log files to a web page.
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</EM><BR>
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<EM>> A couple of folks looked at the logs, but I didn't get any response.
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</EM><BR>
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<EM>> Perhaps I just missed them.
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</EM><BR>
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<EM>> If anyone has any idea on how to proceed in getting this working
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</EM><BR>
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<EM>> (debugging?) please let me know. Unforunately I'm not really
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</EM><BR>
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<EM>> knowledgable on SCSI and and scanner interfaces, but I'm more
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</EM><BR>
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<EM>> than willing to help. I would really like the scanner to work
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</EM><BR>
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<EM>> with Linux.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Thanks in advance!
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --Jens Petersohn
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> P.S. The logs and a sample corrupted image are available at:
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</EM><BR>
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<EM>> <A HREF="http://mccoy.penguinpowered.com/scanner">http://mccoy.penguinpowered.com/scanner</A>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --
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</EM><BR>
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<EM>> Home: <A HREF="mailto:jkp@mccoy.penguinpowered.com?Subject=Re:%20HP%20backend%20problem...&In-Reply-To=<3989C122.A1031713@kirchgessner.net>">jkp@mccoy.penguinpowered.com</A> Work: <A HREF="mailto:jkp@sgi.com?Subject=Re:%20HP%20backend%20problem...&In-Reply-To=<3989C122.A1031713@kirchgessner.net>">jkp@sgi.com</A>
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> The views expressed herein do not necessarily
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</EM><BR>
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<EM>> represent the views of the author, let alone
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</EM><BR>
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<EM>> anyone else!
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> --
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</EM><BR>
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<EM>> Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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</EM><BR>
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<EM>> To unsubscribe: echo unsubscribe sane-devel | mail <A HREF="mailto:majordomo@mostang.com?Subject=Re:%20HP%20backend%20problem...&In-Reply-To=<3989C122.A1031713@kirchgessner.net>">majordomo@mostang.com</A>
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</EM><BR>
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<P><PRE>
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--
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Peter Kirchgessner
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WWW: <A HREF="http://www.kirchgessner.net">http://www.kirchgessner.net</A>
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e-mail: <A HREF="mailto:peter@kirchgessner.net?Subject=Re:%20HP%20backend%20problem...&In-Reply-To=<3989C122.A1031713@kirchgessner.net>">peter@kirchgessner.net</A>
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<P><P>--
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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:%20HP%20backend%20problem...&In-Reply-To=<3989C122.A1031713@kirchgessner.net>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0088.html">Jens Petersohn: "Re: HP backend problem..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0088.html">Jens Petersohn: "Re: HP backend problem..."</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Thu Aug 03 2000 - 12:02:41 PDT</EM>
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