1.\" $OpenBSD: lcd.4,v 1.2 2007/07/20 22:41:57 kettenis Exp $ 2.\" 3.\" Copyright (c) 2007 Mark Kettenis <kettenis@openbsd.org> 4.\" 5.\" Permission to use, copy, modify, and distribute this software for any 6.\" purpose with or without fee is hereby granted, provided that the above 7.\" copyright notice and this permission notice appear in all copies. 8.\" 9.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 10.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 11.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 12.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 13.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 14.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 15.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 16.\" 17.Dd $Mdocdate: July 20 2007 $ 18.Dt LCD 4 hppa 19.Os 20.Sh NAME 21.Nm lcd 22.Nd front panel LCD display 23.Sh SYNOPSIS 24.Cd "lcd0 at mainbus0" 25.Sh DESCRIPTION 26The 27.Nm 28driver provides support for the front panel LCD display found on newer 29HP PA-RISC workstations and servers. 30This LCD can be made to show a heartbeat based on the load average by 31setting the 32.Xr sysctl 3 33variable 34.Ar machdep.led_blink 35to a non-zero value. 36.Sh SEE ALSO 37.Xr sysctl 3 , 38.Xr intro 4 , 39.Xr sysctl 8 40.Sh HISTORY 41The 42.Nm 43driver first appeared in 44.Ox 4.2 . 45