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From: mandeepsandhu.chd@gmail.com (Mandeep Sandhu)
To: kernelnewbies@lists.kernelnewbies.org
Subject: Putting artificial delays in a char driver
Date: Fri, 20 May 2011 12:10:50 +0530	[thread overview]
Message-ID: <BANLkTim7JP=tvCo4VL-04ODuAK8U9X9UsA@mail.gmail.com> (raw)
In-Reply-To: <BANLkTinCSF-4WP40JPv_NuXCtZrj+twpZw@mail.gmail.com>

Thanks Felix.

This looks better than putting a delay in the ISR's execution path.

I've implemented a simple fxn to be called by a timer after 10ms and
it looks fine..as in I can see the LED blink! :)

Thanks,
-mandeep

On Thu, May 19, 2011 at 5:21 PM, Felix Varghese <felixv1986@gmail.com> wrote:
> Hi,
>
> I can't say I have understood your scenario completely. Maybe you
> could turn your LED on when you want to (say in the ISR) and then
> start a kernel timer of sufficient duration. In the timer expiry
> handler, you could switch it off. By adjusting the duration, you could
> make sure that the LED stays on long enough to be visible.
>
> Regards,
> Felix.
>

  reply	other threads:[~2011-05-20  6:40 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-05-19 11:30 Putting artificial delays in a char driver Mandeep Sandhu
2011-05-19 11:51 ` Felix Varghese
2011-05-20  6:40   ` Mandeep Sandhu [this message]
2011-05-19 12:30 ` Joachim Holst
2011-05-20  6:43   ` Mandeep Sandhu

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