Messages in this thread | | | Subject | Re: How is user space notified of CPU speed changes? | From | Robert Love <> | Date | Sun, 24 Oct 2004 16:02:12 -0400 |
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On Sat, 2004-10-23 at 01:10 -0400, Lee Revell wrote:
> OK, thanks. Still no answer to my original question though. > > JACK makes extensive use of microsecond-level timers. These must be > calibrated at startup, and recalibrated when the CPU speed changes. How > does JACK register with the kernel to be notified when the CPU speed > changes?
Ignoring all of these meta-issues like whether or not JACK actually should be checking the CPU speed: Yes, I think that doing a kevent tied to the processor object when the speed changes is an absolutely ideal use of the kernel event layer.
HAL would use it, too.
Robert Love
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