lkml.org 
[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?
From
Date
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 majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 14:07    [W:0.125 / U:2.248 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site