53 lines
1.5 KiB
Groff
53 lines
1.5 KiB
Groff
.\" $NetBSD: lcd.4,v 1.2 2010/06/01 11:34:02 wiz Exp $
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.\" OpenBSD: lcd.4,v 1.2 2007/07/20 22:41:57 kettenis Exp
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.\"
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.\" Copyright (c) 2007 Mark Kettenis <kettenis@openbsd.org>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.Dd June 1, 2010
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.Dt LCD 4 hp700
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.Os
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.Sh NAME
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.Nm lcd
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.Nd front panel LCD display
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.Sh SYNOPSIS
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.Cd "lcd0 at mainbus0"
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.Sh DESCRIPTION
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The
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.Nm
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driver provides support for the front panel LCD display found on newer
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HP PA-RISC workstations and servers.
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This LCD can be made to show a heartbeat based on the load average by
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setting the
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.Xr sysctl 3
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variable
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.Ar machdep.lcd_blink
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to a non-zero value.
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.Sh SEE ALSO
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.Xr sysctl 3 ,
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.Xr intro 4 ,
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.Xr sysctl 8
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.Sh HISTORY
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.An -nosplit
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The
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.Nm
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driver first appeared in
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.Ox 4.2 .
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It was ported to
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.Nx 6.0
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by
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.An Adam Hoka
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and
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.An Nick Hudson .
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