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Document the sysctl(8) controls with a note that these may be removed in

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future versions without further notice.
This commit is contained in:
jruoho 2010-08-11 17:28:59 +00:00
parent ba9742b0ee
commit 5fa58d5e62
1 changed files with 19 additions and 2 deletions
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21
share/man/man4/acpicpu.4
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@ -1,4 +1,4 @@
.\" $NetBSD: acpicpu.4,v 1.7 2010/08/10 06:10:16 wiz Exp $
.\" $NetBSD: acpicpu.4,v 1.8 2010/08/11 17:28:59 jruoho Exp $
.\"
.\" Coyright (c) 2010 Jukka Ruohonen <jruohonen@iki.fi>
.\" All rights reserved.
@ -24,7 +24,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd August 10, 2010
.Dd August 11, 2010
.Dt ACPICPU 4
.Os
.Sh NAME
@ -197,6 +197,23 @@ It is possible to view the statistics by using
.Fl e
flag).
Note that valid per-CPU data is available only for C-states.
.Ss System information variables
The
.Nm
driver uses the same
.Xr sysctl 8
controls for P-states as the ones provided by the kernel configuration
.Xr options 4
.Dv ENHANCED_SPEEDSTEP
and
.Dv POWERNOW_K8 .
Depending on the processor vendor, the second-level node is either
.Ic machdep.est
or
.Ic machdep.powernow .
Please note that future versions of
.Nm
may however remove the system control variables without further notice.
.Sh SEE ALSO
.Xr acpi 4 ,
.Xr cpu_idle 9