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From: Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>
Date: 30 May 2003 09:04:50 -0400
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Subject: Re: sleep for specified time
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> > someone please tell me how to make a kld sleep for specified number of 
> > microseconds
> > 
> > its urgent.
> 
> nanosleep (microseconds*1000);

In the kernel?  Surely not.

I think you'd need to explicitly run the scheduler, and probably use a
timer event to resume later.  There are established techniques for
these things, but the BSD kernel details aren't my specialty...