viawd(4)

device driver for VIA south bridge watchdog timer

NAME

viawd – device driver for VIA south bridge watchdog timer

SYNOPSIS

device viawd

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.

HISTORY

The viawd driver first appeared in FreeBSD 10.0.

AUTHORS

The viawd driver and this manual page were written by Fabien Thomas ⟨[email protected]⟩.

History

FreeBSD 16.0-CURRENT (2026-10-27): the text shown here
FreeBSD 15.1-RELEASE to FreeBSD 13.3-RELEASE
FreeBSD 13.2-RELEASE to FreeBSD 13.0-RELEASE
FreeBSD 12.4-RELEASE
FreeBSD 12.3-RELEASE
FreeBSD 12.2-RELEASE
FreeBSD 12.1-RELEASE
FreeBSD 12.0-RELEASE
FreeBSD 11.4-RELEASE
FreeBSD 11.3-RELEASE
FreeBSD 11.2-RELEASE
FreeBSD 11.1-RELEASE
FreeBSD 11.0-RELEASE
FreeBSD 10.4-RELEASE
FreeBSD 10.3-RELEASE
FreeBSD 10.2-RELEASE
FreeBSD 10.1-RELEASE
FreeBSD 10.0-RELEASE
FreeBSD 9.3-RELEASE
FreeBSD 9.2-RELEASE
FreeBSD 9.1-RELEASE
FreeBSD 8.4-RELEASE
FreeBSD 8.3-RELEASE