186 lines
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HTML
186 lines
7.4 KiB
HTML
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<TITLE>The Answer Gang 81: Version incompatibility</TITLE>
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<H4>By Jim Dennis, Ben Okopnik, Dan Wilder, Breen, Chris, and...
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(<a href="tag/bios.html">meet the Gang</a>) ...
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the Editors of Linux Gazette...
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and You!
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<H3 align="left"><img src="../../gx/dennis/qbubble.gif"
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height="50" width="60" alt="(?) " border="0"
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>Version incompatibility</H3>
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<p><strong>From John Karns
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</strong></p>
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<p></strong></p>
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<p align="right"><strong>Answered By John Karns, Jim Dennis
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</strong></p>
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<blockQuote>
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Dear Sir/Madam,
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</blockQuote>
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<blockQuote>
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I have downloaded a driver for the Metrabyte Dash-16 daq card. The
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driver has been compiled for version 2.2.x. But the version on my
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computer is 2.4.7. How do I make the driver compatible for this
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version?
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</blockQuote>
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<blockQuote>
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<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [John K.]
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I would suggest contacting the mfr to ask about their intentions to
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provide it. You might also search www.google.com/linux for metrabyte.
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</blockQuote>
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<blockQuote>
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<IMG SRC="../../gx/dennis/bbub.gif" ALT="(!)"
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HEIGHT="28" WIDTH="50" BORDER="0"
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> [JimD]
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If the driver is in source form (you patched a 2.2 kernel source tree
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and built your kernel therefrom) then another option would be to port
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(update) the driver to the new kernel. Try applying the patch to 2.4,
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look at rejects and errors, and then hunt about to find what changes
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are needed from the old kernel to the new one.
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</blockQuote>
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<blockQuote>
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Of course that approach is for C programmers only -- and it's good to
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have prior experience with Linux kernel programming. Then again it is
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a good way to learn Linux kernel programming, too. If you take that
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approach be prepare to spend alot of time reading the sources to similar
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drivers (in both kernel trees), alot of time cutting your own diffs
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on those sources, alot of time searching the kernel mailing archives,
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possibly some time reading books like the O'Reilly Linux device drivers
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and Linux kernel internals books. (Search <A HREF="http://www.ora.com"
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>http://www.ora.com</A> for
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the exact titles). You may also have to ask some questions on the
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Linux kernel mailing list, the newsgroup or on the IRC channel on
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openprojects.net.
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</blockQuote>
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<blockQuote>
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If it's a binary driver ... contact the manufacturer and explain your
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needs to them. If they are unresponsive then you have the same problem
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as you would with any other vendor of proprietary hardware and/or software.
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Cope!
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</blockQuote>
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<P> <hr> </p>
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<H5 align="center">This page edited and maintained by the Editors
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of <I>Linux Gazette</I>
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<a href=""
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>Copyright ©</a> 2002
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<BR>Published in issue 81 of <I>Linux Gazette</I> August 2002</H5>
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<H6 ALIGN="center">HTML script maintained by
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<A HREF="mailto:star@starshine.org">Heather Stern</a> of
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Starshine Technical Services,
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