ichwd.4freebsd

Langue: en

Autres versions - même langue

Version: 300879 (debian - 07/07/09)

Section: 4 (Pilotes et protocoles réseau)


BSD mandoc

NAME

ichwd - Intel ICH watchdog timer driver

SYNOPSIS

device ichwd

DESCRIPTION

This driver provides access to the watchdog timer (WDT) present on all Intel ICH chipsets.

The ICH WDT counts down in ticks of approximately 0.6 seconds; the exact value depends on hardware quality and environmental factors. Supported watchdog intervals range from 2 to 63 ticks.

Note that on some ICH-based systems, the WDT may be present but disabled, either in hardware or by the BIOS. The driver attempts to detect this condition and will refuse to attach if it believes the WDT is disabled.

SEE ALSO

watchdog(4), watchdog(8), watchdogd(8), watchdog(9)
Using the Intel ICH Family Watchdog Timer (WDT) Intel Application Note AP-725 Document Number 292273-001

HISTORY

The driver appeared in Fx 5.3 .

AUTHORS

An -nosplit The driver was written by An Wm. Daryl Hawkins Aq dhawkins@tamu.edu and An Dag-Erling Smørgrav Aq des@FreeBSD.org . This manual page was written by An Dag-Erling Smørgrav Aq des@FreeBSD.org .