kernel function called with 200Hz
From: Klaus Schneider (klaus.schneider_at_iup.uni-heidelberg.de.x)
Date: 05/17/05
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Date: Tue, 17 May 2005 18:25:17 +0200
Hi!
Is there a possibility in the Linux kernel to call a kernel function with
200Hz? What I want to do is PWM (Pulse Width Modulation) at 200Hz frame
rate with the parallel port. So I want to register a function called at
200Hz which switches the port after n calls and back after (200-n) more
calls. But, using kernel timer, I can only register a one-time-called
function. I've searched through google and newsgroups but it was no use.
Or is there perhaps another solution how to do it? I can't use usleep() as
this won't be precise enough.
If it's possible, I don't want to use extensions as RTAI because the code
has to work on a system which also controls other things and this stuff has
to keep on working.
Thanks,
Klaus
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