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From: Andrew Morton on 4 Aug 2010 19:40
On Thu, 5 Aug 2010 01:06:53 +0400
Alexander Gordeev <lasaine(a)lvk.cs.msu.su> wrote:

> Add PPS signal generator which utilizes STROBE pin of a parallel port to
> send PPS signals. It uses parport abstraction layer and hrtimers to
> precisely control the signal.
>
> ..
>
> +static unsigned int send_delay = 30000;
> +MODULE_PARM_DESC(delay,
> + "Delay between setting and dropping the signal (ns)");
> +module_param_named(delay, send_delay, uint, 0);

This code doesn't look easy to configure and use. For example, if some
random person tries to get it going, how does he even know that this
module parameter exists, let alone how to use it?

Please review Documentation/pps/pps.txt and check that it accurately
and completely describes how to use the pps code after your changes,
thanks.

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