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<TITLE>sane-devel: [snapscan] Status on Acer 640BU tests</TITLE>
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<META NAME="Author" CONTENT="Chris Bagwell (cbagwell@sprynet.com)">
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<META NAME="Subject" CONTENT="[snapscan] Status on Acer 640BU tests">
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<H1>[snapscan] Status on Acer 640BU tests</H1>
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<!-- subject="[snapscan] Status on Acer 640BU tests" -->
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<STRONG>From:</STRONG> Chris Bagwell (<A HREF="mailto:cbagwell@sprynet.com?Subject=Re:%20[snapscan]%20Status%20on%20Acer%20640BU%20tests&In-Reply-To=<3A038991.EC83DC2D@sprynet.com>"><EM>cbagwell@sprynet.com</EM></A>)<BR>
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<STRONG>Date:</STRONG> Fri Nov 03 2000 - 19:59:13 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0051.html">Chris Bagwell: "Re: [snapscan] Core testing group"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0049.html">Jochen Eisinger: "Compile error on SGI/Irix"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0064.html">Sebastien Sable: "Re: [snapscan] Status on Acer 640BU tests"</A>
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<P>
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I did some more testing with the latest snapscan drivers on sourceforge
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<BR>
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and my Acer 640BU. Its probably of some interest to any USB user.
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<BR>
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<P>First off, I commited to CVS some minor updates needed to get USB fully
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<BR>
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working under sane-1.0.3. Hopefully, Sebastien will make a snapshot
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<BR>
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soon for easy download.
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<BR>
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<P>Here are some general tips I've found out. For USB support be sure and
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<BR>
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edit the snapscan-usb.h file as soon as possible to enable it.
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<BR>
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<P>cd sane-1.0.3/backend
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<BR>
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[edit snapscan-usb.h]
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<BR>
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touch snapscan.c
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<BR>
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cd ..
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<BR>
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make; make install
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<BR>
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<P>Touching the snapscan.c file is important or else the compiler will not
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<BR>
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know to look at the changes to snapscan-usb.h.
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<BR>
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<P>Next, modify the global snapscan.conf file and REMOVE any reference to
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<BR>
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/dev/scanner. Place a reference to /dev/usbscanner and make sure the
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<BR>
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/dev/usbscanner really exists in your /dev directory (under RedHat I
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<BR>
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made a symbolic link to /dev/usb/scanner0). Its best to remove any
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<BR>
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existance to /dev/scanner from sane config files and/or your /dev/
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<BR>
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directory. If you make a link from /dev/scanner to your usb device then
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<BR>
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things like xscanimage will always lock up since most of sane treats
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<BR>
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/dev/scanner like a scsi device without seeing if it really is first.
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<BR>
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<P>Lastly, DO NOT run scanimage or xscanimage from within the backend
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<BR>
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diretory or you'll be using a snapscan.conf file that will not contain
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<BR>
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your addition of /dev/usbscanner and will fail to scan. Thats just a
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<BR>
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gotcha that kept happening to me.
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<BR>
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<P>Thats about it.
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<BR>
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<P>With the current CVS software I can scan fine at 150, 300 dpi and
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<BR>
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preview modes on my Acer 640BU. 600 dpi will lock up before the scan of
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<BR>
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actual image data begins and not transfer any data. Haven't been able
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<BR>
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to debug it yet but it appears to be different from the bytes_expected
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<BR>
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problem Sebastien has overcome.
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<BR>
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<P>Chris
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<BR>
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<P><PRE>
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--
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Chris Bagwell (mailto:<A HREF="mailto:cbagwell@sprynet.com?Subject=Re:%20[snapscan]%20Status%20on%20Acer%20640BU%20tests&In-Reply-To=<3A038991.EC83DC2D@sprynet.com>">cbagwell@sprynet.com</A>) | Dallas, TX
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<A HREF="http://home.sprynet.com/~cbagwell">http://home.sprynet.com/~cbagwell</A> | USA
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<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:%20[snapscan]%20Status%20on%20Acer%20640BU%20tests&In-Reply-To=<3A038991.EC83DC2D@sprynet.com>">majordomo@mostang.com</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0051.html">Chris Bagwell: "Re: [snapscan] Core testing group"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0049.html">Jochen Eisinger: "Compile error on SGI/Irix"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0064.html">Sebastien Sable: "Re: [snapscan] Status on Acer 640BU tests"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Fri Nov 03 2000 - 19:54:43 PST</EM>
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