svn commit: r212813 - head/share/man/man4

[Alexander Motin]

Author: mav
Date: Sat Sep 18 07:45:54 2010
New Revision: 212813
URL: http://svn.freebsd.org/changeset/base/212813

Log:
  Document hw.i8254.freq tunable and machdep.i8254_freq sysctl.

Modified:
  head/share/man/man4/attimer.4

Modified: head/share/man/man4/attimer.4
==============================================================================
--- head/share/man/man4/attimer.4	Sat Sep 18 07:36:43 2010	(r212812)
+++ head/share/man/man4/attimer.4	Sat Sep 18 07:45:54 2010	(r212813)
@@ -42,6 +42,11 @@ Default value is 1.
 .It Va hint.attimer. Ns Ar X Ns Va .timecounter
 controls time counter functionality support. Setting to 0, disables it.
 Default value is 1.
+.It Va hw.i8254.freq
+allows to override default counter frequency.
+The same value is also available in run-time via
+.Va machdep.i8254_freq
+sysctl.
 .El
 .Sh DESCRIPTION
 This driver uses i8254 Programmable Interval Timer (AT Timer) hardware