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<TITLE>sane-devel: Re: use of ioperm in sane</TITLE>
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<META NAME="Author" CONTENT="stef (stef-listes@wanadoo.fr)">
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<H1>Re: use of ioperm in sane</H1>
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<STRONG>From:</STRONG> stef (<A HREF="mailto:stef-listes@wanadoo.fr?Subject=Re:%20use%20of%20ioperm%20in%20sane&In-Reply-To=<20010212183804.A3268@wanadoo.fr>"><EM>stef-listes@wanadoo.fr</EM></A>)<BR>
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<STRONG>Date:</STRONG> Mon Feb 12 2001 - 09:38:04 PST
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<LI><STRONG>Next message:</STRONG> <A HREF="0126.html">Jochen Eisinger: "Re: use of ioperm in sane -> sanei_ppdev"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0124.html">Tim Waugh: "Re: use of ioperm in sane"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0126.html">Jochen Eisinger: "Re: use of ioperm in sane -> sanei_ppdev"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0127.html">Tim Waugh: "Re: use of ioperm in sane"</A>
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<P>
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On Mon, Feb 12, 2001 at 04:41:55PM +0000, Tim Waugh wrote:
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<BR>
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<EM>> The ppdev _interface_ has support for 32-bit EPP reads and writes (or
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</EM><BR>
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<EM>> it might possibly need a PPFLAG ioctl to set PARPORT_EPP_FAST). The
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</EM><BR>
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<EM>> implementation hasn't caught up with that yet, but that's a Small
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</EM><BR>
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<EM>> Matter of Programming.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> But 32-bit writes or 8-bit writes is just a speed thing rather than
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</EM><BR>
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<EM>> something that makes it not work altogether, surely?
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> Tim.
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</EM><BR>
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<EM>> */
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</EM><BR>
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<P> Unfortunately, for parallel port scanner, transfer speed does matter.
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<BR>
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However, I planned to use ppdev to have correct handling of concurrent access to the
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<BR>
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parallel port, so when my beloved insl will be there, I will use it.
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<BR>
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<P><P>Stef
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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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</PRE>
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