| ichwd.4 (171939) | ichwd.4 (181967) |
|---|---|
| 1.\"- 2.\" Copyright (c) 2007 Dag-Erling Co�dan Sm�rgrav 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" | 1.\"- 2.\" Copyright (c) 2007 Dag-Erling Co�dan Sm�rgrav 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" |
| 26.\" $FreeBSD: head/share/man/man4/ichwd.4 171939 2007-08-23 20:05:09Z des $ | 26.\" $FreeBSD: head/share/man/man4/ichwd.4 181967 2008-08-21 17:53:13Z rpaulo $ |
| 27.\" | 27.\" |
| 28.Dd August 23, 2007 | 28.Dd August 20, 2008 |
| 29.Dt ICHWD 4 30.Os 31.Sh NAME 32.Nm ichwd 33.Nd device driver for the Intel ICH watchdog interrupt timer 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following line in your --- 8 unchanged lines hidden (view full) --- 45.Bd -literal -offset indent 46ichwd_load="YES" 47.Ed 48.Sh DESCRIPTION 49The 50.Nm 51driver provides 52.Xr watchdog 4 | 29.Dt ICHWD 4 30.Os 31.Sh NAME 32.Nm ichwd 33.Nd device driver for the Intel ICH watchdog interrupt timer 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following line in your --- 8 unchanged lines hidden (view full) --- 45.Bd -literal -offset indent 46ichwd_load="YES" 47.Ed 48.Sh DESCRIPTION 49The 50.Nm 51driver provides 52.Xr watchdog 4 |
| 53support for the watchdog interrupt timer present in 54the Intel ICH motherboard chipsets. | 53support for the watchdog interrupt timer present on 54all Intel ICH motherboard chipsets. 55.Pp 56The ICH WDT counts down in ticks of approximately 0.6 seconds; the 57exact value depends on hardware quality and environmental factors. 58Supported watchdog intervals range from 2 to 63 ticks. 59.Pp 60Note that on some ICH-based systems, the WDT may be present but 61disabled, either in hardware or by the BIOS. 62The 63.Nm 64driver attempts to detect this condition and will refuse to attach if 65it believes the WDT is disabled. |
| 55.Sh SEE ALSO 56.Xr watchdog 4 , 57.Xr watchdog 8 , | 66.Sh SEE ALSO 67.Xr watchdog 4 , 68.Xr watchdog 8 , |
| 58.Xr watchdogd 8 | 69.Xr watchdogd 8, 70.Xr watchdog 9 71.Rs 72.%T Using the Intel ICH Family Watchdog Timer (WDT) 73.%R Intel Application Note AP-725 74.%O Document Number 292273-001 75.Re |
| 59.Sh HISTORY 60The 61.Nm 62driver first appeared in 63.Fx 5.3 . 64.Sh AUTHORS 65.An -nosplit 66The 67.Nm | 76.Sh HISTORY 77The 78.Nm 79driver first appeared in 80.Fx 5.3 . 81.Sh AUTHORS 82.An -nosplit 83The 84.Nm |
| 68driver was originally written by 69.An Wm. Daryl Hawkins 70of Texas A&M University. | 85driver was written by 86.An Wm. Daryl Hawkins Aq dhawkins@tamu.edu 87of Texas A&M University and 88.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org . |
| 71This manual page was written by 72.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org . | 89This manual page was written by 90.An Dag-Erling Sm\(/orgrav Aq des@FreeBSD.org . |