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