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Date: Sun, 23 Feb 1997 19:11:24 -0800
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To: "Brian J. McGovern" <mcgovern@spoon.beta.com>
CC: patrick collins <pc012@seqeb.gov.au>, hackers@freebsd.org
Subject: Re: Driver question on interval execution (polling?)
References: <199702240127.UAA04260@spoon.beta.com>
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Brian J. McGovern wrote:

> 
> Based on my reading of several device driver books, I am aware of a mechanism
> to be able to have the kernel re-enter a particular function after a certain
> time period is past. Using this system, you should be able to do your
> poll, and then implement the required code so the function will be restarted
> some time in the future, and then it should terminate.

the calls you want are 
timeout(9) 
untimeout(9)
tsleep(9)
and wakeup(9)
not all have man pages yet