[lkml]   [2004]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: How is user space notified of CPU speed changes?
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

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-03-22 14:07    [from the cache]
©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site