freebsd-nq/share/man/man4/man4.sparc64/fhc.4
Ruslan Ermilov 0d0a2dff3b Document a lot of sparc64 internals.
Submitted by:	marius
Reviewed by:	ru
Approved by:	re (blanket)
X-MFC:		not before the code in RELENG_5 matches
		these man pages or vice versa
2005-06-22 15:35:14 +00:00

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2.3 KiB
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.\"-
.\" Copyright (c) 2004 Jason L. Wright (jason@thought.net)
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.\" from: OpenBSD: fhc.4,v 1.5 2004/09/28 21:42:59 jmc Exp
.\" $FreeBSD$
.\"
.Dd June 18, 2005
.Dt FHC 4 sparc64
.Os
.Sh NAME
.Nm fhc
.Nd "FireHose controller and bus"
.Sh SYNOPSIS
.Cd "device fhc"
.Sh DESCRIPTION
The
.Nm
driver provides support for the
.Tn FireHose
controllers and busses found in
.Tn Sun Enterprise xx00
systems.
These controllers are also used for board level functions on these systems.
Each board has three status LEDs labeled
.Dq Li Power ,
.Dq Li Failure
and
.Dq Li Cycling .
The
.Dq Li Cycling
LEDs can be made to blink by writing
.Tn ASCII
strings to the
.Pa /dev/led/board Ns Ar N
devices where
.Ar N
represents the physical slot number of the board.
.Sh FILES
.Bl -tag -width ".Pa /dev/led/board Ns Ar N"
.It Pa /dev/led/board Ns Ar N
board
.Ar N
LED device node
.El
.Sh SEE ALSO
.Xr central 4 ,
.Xr clkbrd 4 ,
.Xr eeprom 4 ,
.Xr led 4 ,
.Xr uart 4
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 5.1 .
.Sh AUTHORS
The
.Nm
driver was written by
.An "Jake Burkholder" Aq jake@FreeBSD.org .