2011-12-12 09:50:33 +00:00
|
|
|
.\"-
|
|
|
|
|
.\" Copyright (c) 2011 Fabien Thomas <fabient@FreeBSD.org>
|
|
|
|
|
.\" All rights reserved.
|
|
|
|
|
.\"
|
|
|
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
|
|
|
.\" modification, are permitted provided that the following conditions
|
|
|
|
|
.\" are met:
|
|
|
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
|
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
|
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
|
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
|
|
|
.\"
|
|
|
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS `AS IS'' AND
|
|
|
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
|
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
|
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
|
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
|
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
|
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
|
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
|
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
|
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
|
|
|
.\" SUCH DAMAGE.
|
|
|
|
|
.\"
|
|
|
|
|
.\" $FreeBSD$
|
|
|
|
|
.\"
|
|
|
|
|
.Dd December 7, 2011
|
|
|
|
|
.Dt VIAWD 4
|
|
|
|
|
.Os
|
|
|
|
|
.Sh NAME
|
|
|
|
|
.Nm viawd
|
|
|
|
|
.Nd device driver for VIA south bridge watchdog timer
|
|
|
|
|
.Sh SYNOPSIS
|
|
|
|
|
To compile this driver into the kernel,
|
|
|
|
|
place the following line in your
|
|
|
|
|
kernel configuration file:
|
|
|
|
|
.Bd -ragged -offset indent
|
|
|
|
|
.Cd "device viawd"
|
|
|
|
|
.Ed
|
|
|
|
|
.Pp
|
|
|
|
|
Alternatively, to load the driver as a
|
|
|
|
|
module at boot time, place the following line in
|
|
|
|
|
.Xr loader.conf 5 :
|
|
|
|
|
.Bd -literal -offset indent
|
|
|
|
|
viawd_load="YES"
|
|
|
|
|
.Ed
|
|
|
|
|
.Sh DESCRIPTION
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
driver provides
|
|
|
|
|
.Xr watchdog 4
|
|
|
|
|
support for the watchdog interrupt timer present on
|
|
|
|
|
VIA south bridge chipset (VT8251, CX700, VX800, VX855, VX900).
|
|
|
|
|
.Pp
|
|
|
|
|
The VIA south bridge have a built-in watchdog timer,
|
|
|
|
|
which can be enabled and disabled by user's program and set between
|
|
|
|
|
1 to 1023 seconds.
|
|
|
|
|
.Pp
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
driver when unloaded with running watchdog will reschedule the watchdog
|
|
|
|
|
to 5 minutes.
|
|
|
|
|
.Sh SEE ALSO
|
|
|
|
|
.Xr watchdog 4 ,
|
|
|
|
|
.Xr watchdog 8 ,
|
|
|
|
|
.Xr watchdogd 8 ,
|
|
|
|
|
.Xr watchdog 9
|
|
|
|
|
.Sh HISTORY
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
driver first appeared in
|
|
|
|
|
.Fx 10.0 .
|
|
|
|
|
.Sh AUTHORS
|
|
|
|
|
.An -nosplit
|
|
|
|
|
The
|
|
|
|
|
.Nm
|
|
|
|
|
driver and this manual page were written by
|
2014-06-26 21:46:14 +00:00
|
|
|
.An Fabien Thomas Aq Mt fabient@FreeBSD.org .
|
