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author | Fabien Thomas <fabient@FreeBSD.org> | 2011-12-12 09:50:33 +0000 |
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committer | Fabien Thomas <fabient@FreeBSD.org> | 2011-12-12 09:50:33 +0000 |
commit | 61af1d13936ec56808f62d13dd8698f73b440dc1 (patch) | |
tree | eddcb9c773407a289dfe349f4f2a7a30d499edaa /share/man/man4/viawd.4 | |
parent | 0e225211a0ce8a759c5af8575156a83755af00bf (diff) | |
download | src-61af1d13936ec56808f62d13dd8698f73b440dc1.tar.gz src-61af1d13936ec56808f62d13dd8698f73b440dc1.zip |
Add watchdog support for VIA south bridge chipset.
Tested on VT8251, VX900 but CX700, VX800, VX855 should works.
MFC after: 1 month
Sponsored by: NETASQ
Notes
Notes:
svn path=/head/; revision=228431
Diffstat (limited to 'share/man/man4/viawd.4')
-rw-r--r-- | share/man/man4/viawd.4 | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/share/man/man4/viawd.4 b/share/man/man4/viawd.4 new file mode 100644 index 000000000000..47473cf395e2 --- /dev/null +++ b/share/man/man4/viawd.4 @@ -0,0 +1,79 @@ +.\"- +.\" 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 +.An Fabien Thomas Aq fabient@FreeBSD.org . |