FreeBSD manual
download PDF document: viawd.4.pdf
VIAWD(4) FreeBSD Kernel Interfaces Manual VIAWD(4)
NAME
viawd - device driver for VIA south bridge watchdog timer
SYNOPSIS
To compile this driver into the kernel, place the following line in your
kernel configuration file:
device viawd
Alternatively, to load the driver as a module at boot time, place the
following line in loader.conf(5):
viawd_load="YES"
DESCRIPTION
The viawd driver provides watchdog(4) support for the watchdog interrupt
timer present on VIA south bridge chipset (VT8251, CX700, VX800, VX855,
VX900).
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.
The viawd driver when unloaded with running watchdog will reschedule the
watchdog to 5 minutes.
SEE ALSO
watchdog(4), watchdog(8), watchdogd(8), watchdog(9)
HISTORY
The viawd driver first appeared in FreeBSD 10.0.
AUTHORS
The viawd driver and this manual page were written by Fabien Thomas
<fabient@FreeBSD.org>.
FreeBSD 14.0-RELEASE-p6 December 7, 2011 FreeBSD 14.0-RELEASE-p6