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D40542.id123346.diff
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diff --git a/share/man/man4/hwpmc.4 b/share/man/man4/hwpmc.4
--- a/share/man/man4/hwpmc.4
+++ b/share/man/man4/hwpmc.4
@@ -35,11 +35,27 @@
.Nm hwpmc
.Nd "Hardware Performance Monitoring Counter support"
.Sh SYNOPSIS
+The following option must be present in the kernel configuration file:
+.Bd -ragged -offset indent
.Cd "options HWPMC_HOOKS"
-.Cd "device hwpmc"
+.Ed
.Pp
Additionally, for i386 systems:
+.Bd -ragged -offset indent
.Cd "device apic"
+.Ed
+.Pp
+To load the driver as a module at boot time, place the
+following line in
+.Xr rc.conf 5 :
+.Bd -literal -offset indent
+kld_list="${kld_list} hwpmc"
+.Ed
+.Pp
+Alternatively, to compile this driver into the kernel:
+.Bd -ragged -offset indent
+.Cd "device hwpmc"
+.Ed
.Sh DESCRIPTION
The
.Nm
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