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From: "Francis Moreau" <francis.moro@gmail.com>
To: linux-kernel@vger.kernel.org
Cc: tglx@linutronix.de
Subject: clockevent questions
Date: Sat, 12 May 2007 16:54:10 +0200	[thread overview]
Message-ID: <38b2ab8a0705120754l281f54eevd1e91e2f01fff6f2@mail.gmail.com> (raw)

Hi,

I'm trying to use clocksource and clockevent new subsystem. My
platform has a timer that I'd like to use both as a clocksource and a
clockevent devices. This timer is continueous in sense that it can run
without any interruption so I assume I can flag the clocksource device
with "CLOCK_SOURCE_IS_CONTINUOUS". However I noticed that clockevent
device can be stopped by using "set_mode()" method. Are these two
behaviours compatible ?

Another question is that I have another embedded 16 bits timer that I
would like to use. Since the timer is only 16 bits, the maximum
interval is tiny, My question if a user ask for a clockevent device
using an interval is bigger that 2^16, the clockevent system doesn't
return an error. Instead it silently reduce the interval to 2^16. Is
this correct ? if so why ?

Thanks for your answers
-- 
Francis

             reply	other threads:[~2007-05-12 14:54 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-05-12 14:54 Francis Moreau [this message]
2007-05-12 15:14 ` clockevent questions Thomas Gleixner
2007-05-12 20:13   ` Francis Moreau
2007-05-12 20:23     ` Thomas Gleixner
2007-05-13  5:52       ` Francis Moreau
2007-05-15  8:47       ` Francis Moreau
2007-05-15 22:10         ` Thomas Gleixner
2007-05-16  7:42           ` Francis Moreau
2007-05-16  8:00             ` Thomas Gleixner

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