From owner-freebsd-current@FreeBSD.ORG  Sat Feb  3 21:53:03 2007
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
X-Original-To: freebsd-current@freebsd.org
Delivered-To: freebsd-current@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 453FE16A400
	for <freebsd-current@freebsd.org>; Sat,  3 Feb 2007 21:53:03 +0000 (UTC)
	(envelope-from luping.nju@gmail.com)
Received: from wx-out-0506.google.com (wx-out-0506.google.com [66.249.82.239])
	by mx1.freebsd.org (Postfix) with ESMTP id 0BD2413C48D
	for <freebsd-current@freebsd.org>; Sat,  3 Feb 2007 21:53:02 +0000 (UTC)
	(envelope-from luping.nju@gmail.com)
Received: by wx-out-0506.google.com with SMTP id s18so1180482wxc
	for <freebsd-current@freebsd.org>; Sat, 03 Feb 2007 13:53:02 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta;
	h=received:message-id:date:from:to:subject:mime-version:content-type;
	b=peqUGFfX4qMIwL+XI8PcPxair6ZI3TSK4Ulzd+JAaTDjHMQnOIOEWZQe9wttcNPClL97v/dr28RjAmiSfArOmKAnDbzGmMkDUBMfiUwoeIljHnH0RD9KWYNe1ndP77YssWFuVql8znovmkyZ5IIwrtHyCvL918NfePqvyT5uNw0=
Received: by 10.70.74.1 with SMTP id w1mr8636310wxa.1170538092966;
	Sat, 03 Feb 2007 13:28:12 -0800 (PST)
Received: by 10.70.7.7 with HTTP; Sat, 3 Feb 2007 13:28:12 -0800 (PST)
Message-ID: <e80b0eb70702031328x43e742e8m90f9facfc1ec3ff1@mail.gmail.com>
Date: Sat, 3 Feb 2007 16:28:12 -0500
From: "lu ping" <luping.nju@gmail.com>
To: freebsd-current@freebsd.org
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
X-Content-Filtered-By: Mailman/MimeDel 2.1.5
Subject: sleep in freebsd kernel
X-BeenThere: freebsd-current@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Discussions about the use of FreeBSD-current
	<freebsd-current.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>, 
	<mailto:freebsd-current-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-current>
List-Post: <mailto:freebsd-current@freebsd.org>
List-Help: <mailto:freebsd-current-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-current>,
	<mailto:freebsd-current-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Sat, 03 Feb 2007 21:53:03 -0000

Hey Folks,

I have a question about making my kernel thread sleep for a while. I think I
can use "tsleep", but the timeout for this call is only counted as system
ticks (usually at millisecond granularity). However I want to make my
"sleep" return in microsecond granularity. Does anybody know how to realize
this?

Thanks

Luping