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From: George Nychis <gnychis@cmu.edu>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: "Randy.Dunlap" <rdunlap@xenotime.net>, linux-kernel@vger.kernel.org
Subject: Re: [patch] Re: how to link to hrtimers in the kernel
Date: Mon, 06 Oct 2008 13:16:15 -0400	[thread overview]
Message-ID: <48EA47DF.2090207@cmu.edu> (raw)
In-Reply-To: <alpine.LFD.2.00.0810061849090.3166@apollo>



Thomas Gleixner wrote:
> On Mon, 6 Oct 2008, Randy.Dunlap wrote:
>> On Mon, 6 Oct 2008, George Nychis wrote:
>>
>>> Hi all,
>>>
>>> I have modified drivers/usb/core/devio.c to use hrtimer_nanosleep(), and have
>>> included linux/hrtimer.h with it.
> 
> Please do not use hrtimer_nanosleep() in drivers. That's
> wrong.
> 
> What do you want to achieve ?
>  

I am trying to sleep at the microsecond level, which ssleep and msleep 
cannot provide.  I couldn't find any other nanosleep method in the kernel.

I found information by searching the net on using jiffies to accomplish 
sleep periods, but that is not high enough in resolution.

I'd greatly appreciate any feedback.

Thanks!
George

  reply	other threads:[~2008-10-06 17:16 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-06 15:41 how to link to hrtimers in the kernel George Nychis
2008-10-06 16:33 ` [patch] " Randy.Dunlap
2008-10-06 16:51   ` Thomas Gleixner
2008-10-06 17:16     ` George Nychis [this message]
2008-10-07 14:55       ` Brian Pomerantz

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