linux-kernel - Re: sleep in microsecond granularity in linux

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Message-ID: <8yak4i1sqf2.fsf@huya.qualcomm.com>
Date:	Tue, 18 Jan 2011 16:11:45 -0800
From:	David Brown <davidb@...eaurora.org>
To:	Leo Prasath <leo.prasath@...il.com>
Cc:	linux-kernel@...r.kernel.org, Yiying Zhang <eggbaby150@...il.com>
Subject: Re: sleep in microsecond granularity in linux

On Tue, Jan 18 2011, Leo Prasath wrote:

> Is it possible to sleep in granularity of microseconds ?
> From what i know, there is msleep() which can sleep in milliseconds
> and there is udelay() which busy waits for time in microsecond
> granularity.
> But I need to sleep ( not busy wait ) for granularity of microseconds ...

usleep_range()  See Documentation/timers/timers-howto.txt for info, and
caveats.

David

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