Re: mdelay

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On Mon, Apr 14, 2008 at 1:46 PM, Anil Kumar
<chilukurianilkumar@xxxxxxxxx> wrote:
> Hi,
>
> I am implementing a tcp relay as a linux kernel module and somebody told me
> that I could use mdelay to optimize my design. I looked up on the internet
> for some literature on where and how to use mdelay. However, I could not
> find any.
>
> Can somebody please give me some pointers on how to use them or direct me to
> certain links where I can learn it ? Thanks.
>
> --
> Chilukuri Anil Kumar

Isn't mdelay(msecs) just a busy loop?

http://kerneltrap.org/node/6857

Normally busy loops are used to syncronize with physical world
results.  For instance if you write to a device control register and
per the spec. the status register is not valid for 5 msecs, then you
would put a mdelay(5) between the write and the read.

Greg
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