add an Xr to usb, now that we have usb on sgi

diff --git a/share/man/man4/man4.sgi/intro.4 b/share/man/man4/man4.sgi/intro.4
index 708928c..7cb90cd 100644 (file)
--- a/share/man/man4/man4.sgi/intro.4
+++ b/share/man/man4/man4.sgi/intro.4
@@ -1,4 +1,4 @@
-.\"    $OpenBSD: intro.4,v 1.16 2008/06/26 05:42:07 ray Exp $
+.\"    $OpenBSD: intro.4,v 1.17 2008/08/27 20:12:00 jasper Exp $
 .\"     $NetBSD: intro.4,v 1.8 2004/02/10 16:54:19 wiz Exp $
 .\"
 .\" Copyright (c) 2003 The NetBSD Foundation, Inc.
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: June 26 2008 $
+.Dd $Mdocdate: August 27 2008 $
 .Dt INTRO 4 sgi
 .Os
 .Sh NAME
@@ -124,6 +124,8 @@ The following buses and controllers list these devices:
 .Bl -tag -width "cardbus(4)XX" -offset 3n -compact
 .It Xr pci 4
 introduction to PCI bus support
+.It Xr usb 4
+introduction to Universal Serial Bus support
 .El
 .Sh SEE ALSO
 .Xr autoconf 4 ,