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<TITLE>sane-devel: Re: Correct Network Scanner Syntax? (a question)</TITLE>
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<META NAME="Author" CONTENT="John Fremlin (vii@penguinpowered.com)">
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<META NAME="Subject" CONTENT="Re: Correct Network Scanner Syntax? (a question)">
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<H1>Re: Correct Network Scanner Syntax? (a question)</H1>
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<STRONG>From:</STRONG> John Fremlin (<A HREF="mailto:vii@penguinpowered.com?Subject=Re:%20Correct%20Network%20Scanner%20Syntax?%20(a%20question)&In-Reply-To=<m2puq5c9jh.fsf@boreas.southchinaseas>"><EM>vii@penguinpowered.com</EM></A>)<BR>
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<STRONG>Date:</STRONG> Mon May 29 2000 - 14:48:34 PDT
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0170.html">Petter Reinholdtsen: "Re: Correct Network Scanner Syntax?"</A>
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abel deuring <<A HREF="mailto:a.deuring@satzbau-gmbh.de?Subject=Re:%20Correct%20Network%20Scanner%20Syntax?%20(a%20question)&In-Reply-To=<m2puq5c9jh.fsf@boreas.southchinaseas>">a.deuring@satzbau-gmbh.de</A>> writes:
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[...]
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<BR>
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<EM>> Yes and no. As Oliver wrote in his response to your mail, the USB/SCSI
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</EM><BR>
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<EM>> converter or driver (or however it is called) limits the buffer size to
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</EM><BR>
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<EM>> 32 kB, because it does not support scatter/gather. We can live with this
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</EM><BR>
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<EM>> limit, but since the Microtek backend uses sanei_scsi_open, users must
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</EM><BR>
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<EM>> either set SANE_SG_BUFFERSIZE, or if they install Sane from the sources,
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</EM><BR>
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<EM>> they must use the configure option --enable-scsibuffersize in order to
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</EM><BR>
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<EM>> get a "SCSI via USB" scanner running.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> What I tried to point out is, that this inconvenience of a "special
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</EM><BR>
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<EM>> SCSI/USB configuration" (what a big word for an environment variable...)
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</EM><BR>
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<EM>> can be avoided, if a backend uses sanei_scsi_open_extended instead of
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</EM><BR>
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<EM>> sanei_scsi_open. Using the latter function, a backend can easily adapt
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</EM><BR>
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<EM>> to any available buffer size. This way, things would be a little bit
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</EM><BR>
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<EM>> easier for a Linux newbie to get his/her SCSI-over-USB scanner working.
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</EM><BR>
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<P>Sorry, I too got the wrong idea. I forgot about this limit (as it had
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<BR>
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nothing to do with my trivial reasons for making the hack). I agree
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<BR>
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completely. However, the microtek2 maintainer has disappeared, so
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<BR>
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someone else has to make the change. Is it acceptable for Oliver or I
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<BR>
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to submit a patch that would support the microtek2 USB scanners
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cleanly? (I.e. would it be commited to CVS?)
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<BR>
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<P><PRE>
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--
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<P> <A HREF="http://altern.org/vii">http://altern.org/vii</A>
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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:%20Correct%20Network%20Scanner%20Syntax?%20(a%20question)&In-Reply-To=<m2puq5c9jh.fsf@boreas.southchinaseas>">majordomo@mostang.com</A>
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</PRE>
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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>Mon May 29 2000 - 15:15:42 PDT</EM>
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