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-rw-r--r--share/man/man4/attimer.45
1 files changed, 5 insertions, 0 deletions
diff --git a/share/man/man4/attimer.4 b/share/man/man4/attimer.4
index b149a08..d5bfaf9 100644
--- a/share/man/man4/attimer.4
+++ b/share/man/man4/attimer.4
@@ -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
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