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129 wiersze
5.7 KiB
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<TITLE>sane-devel: Have a "scan" button? Read this...</TITLE>
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<META NAME="Author" CONTENT="Frederik Ramm (frederik@remote.org)">
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<META NAME="Subject" CONTENT="Have a "scan" button? Read this...">
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<H1>Have a "scan" button? Read this...</H1>
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<!-- received="Thu Mar 8 11:59:50 2001" -->
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<!-- isoreceived="20010308195950" -->
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<!-- sent="Thu, 8 Mar 2001 20:19:20 +0000" -->
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<!-- isosent="20010308201920" -->
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<!-- name="Frederik Ramm" -->
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<!-- email="frederik@remote.org" -->
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<!-- subject="Have a "scan" button? Read this..." -->
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<!-- id="20010308201920.A7828@aruba.remote.org" -->
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<STRONG>From:</STRONG> Frederik Ramm (<A HREF="mailto:frederik@remote.org?Subject=Re:%20Have%20a%20"scan"%20button?%20Read%20this...&In-Reply-To=<20010308201920.A7828@aruba.remote.org>"><EM>frederik@remote.org</EM></A>)<BR>
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<STRONG>Date:</STRONG> Thu Mar 08 2001 - 12:19:20 PST
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<P>
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<LI><STRONG>Next message:</STRONG> <A HREF="0118.html">Douglas Gilbert: "Re: Have a "scan" button? Read this..."</A>
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<UL>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0116.html">Ulrich Deiters: "Re: 3091 backend: Brightness, Contrast etc."</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0118.html">Douglas Gilbert: "Re: Have a "scan" button? Read this..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0118.html">Douglas Gilbert: "Re: Have a "scan" button? Read this..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0119.html">Tim Waugh: "Re: Have a "scan" button? Read this..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0124.html">abel deuring: "Re: Have a "scan" button? Read this..."</A>
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<A HREF="author.html#117">[ author ]</A>
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<HR NOSHADE><P>
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<P>
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Hi,
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<BR>
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<P> my scanner has a "scan" button that (at least using their Windows
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<BR>
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driver) can be used to launch certain programs on the host system.
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<BR>
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<P>I've written something similar for the SANE environment. It's called
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<BR>
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"sensed" and works by sending a SCSI "REQUEST SENSE" command to the
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<BR>
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scanner in regular intervals (every 2 sec). If the response indicates
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<BR>
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that the scan button has been pressed, a program is launched. (This
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<BR>
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would usually mean scanadf or scanimage, maybe called by a shell
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<BR>
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script that stores the results away properly.)
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<BR>
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<P>The current, initial version is very crude, has only been tested with
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<BR>
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my Fujitsu M3091DCd scanner, and it doesn't even have a Makefile etc.
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<BR>
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(it relies on the SANE SCSI core so you'll have to stuff it into the
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<BR>
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"backend" directory, compile and link with libsanei.a).
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<BR>
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<P>It's here: <A HREF="http://www.remote.org/frederik/projects/software/sane/">http://www.remote.org/frederik/projects/software/sane/</A>
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<BR>
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<P>Feel free to play with it. If anyone's willing to help me make this a
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<BR>
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proper part of SANE, including it in the "tools" directory, putting it
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<BR>
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in CVS and tweaking the Makefiles accordingly, you're most welcome.
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<BR>
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But perhaps that should wait for a version that is more configurable
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<BR>
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and supports more scanners.
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<BR>
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<P>For the SCSI gurus out there, is there any potential disruption by
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<BR>
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sending REQUEST SENSE to a device every two seconds? I noticed that
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<BR>
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while someone has "grabbed" the device, the call blocks anyway (which
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<BR>
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doesn't hurt my program). sensed does not attempt to grab and release
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<BR>
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the device; should it?
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<BR>
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<P>Bye
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<BR>
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Frederik
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<BR>
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<P><PRE>
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--
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Frederik Ramm ## eMail <A HREF="mailto:frederik@remote.org?Subject=Re:%20Have%20a%20"scan"%20button?%20Read%20this...&In-Reply-To=<20010308201920.A7828@aruba.remote.org>">frederik@remote.org</A> ## N57<35>48.10' W005<30>40.32'
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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:%20Have%20a%20"scan"%20button?%20Read%20this...&In-Reply-To=<20010308201920.A7828@aruba.remote.org>">majordomo@mostang.com</A>
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</PRE>
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<P><!-- body="end" -->
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<HR NOSHADE>
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<UL>
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<!-- next="start" -->
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<LI><STRONG>Next message:</STRONG> <A HREF="0118.html">Douglas Gilbert: "Re: Have a "scan" button? Read this..."</A>
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|
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<LI><STRONG>Previous message:</STRONG> <A HREF="0116.html">Ulrich Deiters: "Re: 3091 backend: Brightness, Contrast etc."</A>
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<!-- nextthread="start" -->
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0118.html">Douglas Gilbert: "Re: Have a "scan" button? Read this..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0118.html">Douglas Gilbert: "Re: Have a "scan" button? Read this..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0119.html">Tim Waugh: "Re: Have a "scan" button? Read this..."</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0124.html">abel deuring: "Re: Have a "scan" button? Read this..."</A>
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<!-- reply="end" -->
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<SMALL>
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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>Thu Mar 08 2001 - 12:04:00 PST</EM>
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