config root man

.\"-
.\" Copyright (c) 2004 Jason L. Wright (jason@thought.net)
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.\"	from: OpenBSD: clkbrd.4,v 1.2 2005/02/21 11:29:36 jmc Exp
.\" $FreeBSD: release/9.1.0/share/man/man4/man4.sparc64/clkbrd.4 208027 2010-05-13 12:07:55Z uqs $
.\"
.Dd June 18, 2005
.Dt CLKBRD 4 sparc64
.Os
.Sh NAME
.Nm clkbrd
.Nd "clock board"
.Sh SYNOPSIS
.Cd "device clkbrd"
.Sh DESCRIPTION
The
.Nm
driver provides support for the clock board found in
.Tn Sun Enterprise xx00
systems.
The clock board has three status LEDs labeled
.Dq Li Power ,
.Dq Li Failure
and
.Dq Li Cycling .
These LEDs are also mirrored on the main front panel.
The
.Dq Li Cycling
LED can be made to blink by writing
.Tn ASCII
strings to the
.Pa /dev/led/clockboard
device.
.Pp
On attach the
.Nm
driver also prints out the number of board slots the chassis provides.
.Sh FILES
.Bl -tag -width ".Pa /dev/led/clockboard"
.It Pa /dev/led/clockboard
clock board LED device node
.El
.Sh SEE ALSO
.Xr fhc 4 ,
.Xr led 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Ox 3.7 .
The first
.Fx
version to include it was
.Fx 6.0 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver was written by
.An "Jason L. Wright"
and ported to
.Fx
by
.An "Marius Strobl" Aq marius@FreeBSD.org .
.Sh CAVEATS
Hardware management functionality is not implemented.