Re: [PATCH 5/7] HPET-RTC: disable interrupt when no longer needed

From: Venkatesh Pallipadi
Date: Wed Sep 28 2005 - 08:03:51 EST


On Wed, Sep 28, 2005 at 09:12:26AM +0200, Clemens Ladisch wrote:
> When the emulated RTC interrupt is no longer needed, we better disable
> it; otherwise, we get a spurious interrupt whenever the timer has
> rolled over and reaches the same comparator value.
>
> Having a superfluous interrupt every five minutes doesn't hurt much,
> but it's bad style anyway. ;-)
>

Do you really see the interrupt every five minutes once RTC is disabled.
Or is this to prevent a possible interrupt?
I had assumed while in one-shot interrupt mode, HPET would automatically unarm
after generating the interrupt, so that we won't get interrupts any more.

Thanks,
Venki

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