snd_ich(4) [freebsd man page]

SND_ICH(4)						   BSD Kernel Interfaces Manual 						SND_ICH(4)

NAME

     snd_ich -- Intel ICH AC'97 and compatible bridge device driver

SYNOPSIS

     To compile this driver into the kernel, place the following lines in your kernel configuration file:

	   device sound
	   device snd_ich

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   snd_ich_load="YES"

DESCRIPTION

     The snd_ich bridge driver allows the generic audio driver sound(4) to attach to Intel ICH AC'97 and compatible audio devices.

     Some later chips, like ICH6/ICH7, depending on wiring can instead implement newer Intel HD Audio specification, which is supported by
     snd_hda(4) driver.

HARDWARE

     The snd_ich driver supports the following audio devices:

     o	 AMD 768
     o	 AMD 8111
     o	 Intel 443MX
     o	 Intel ICH
     o	 Intel ICH revision 1
     o	 Intel ICH2
     o	 Intel ICH3
     o	 Intel ICH4
     o	 Intel ICH5
     o	 Intel ICH6
     o	 Intel ICH7
     o	 NVIDIA nForce
     o	 NVIDIA nForce2
     o	 NVIDIA nForce2 400
     o	 NVIDIA nForce3
     o	 NVIDIA nForce3 250
     o	 NVIDIA nForce4
     o	 SiS 7012

SEE ALSO

     snd_hda(4), sound(4)

HISTORY

     The snd_ich device driver first appeared in FreeBSD 4.2.

AUTHORS

     This manual page was written by Jorge Mario G. Mazo <jgutie11@eafit.edu.co>.

BSD
								  January 6, 2009							       BSD

ICHWD(4)						   BSD Kernel Interfaces Manual 						  ICHWD(4)

NAME

     ichwd -- device driver for the Intel ICH watchdog interrupt timer

SYNOPSIS

     To compile this driver into the kernel, place the following line in your kernel configuration file:

	   device ichwd

     Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

	   ichwd_load="YES"

DESCRIPTION

     The ichwd driver provides watchdog(4) support for the watchdog interrupt timer present on all Intel ICH motherboard chipsets.

     The ICH WDT counts down in ticks of approximately 0.6 seconds; the exact value depends on hardware quality and environmental factors.  Sup-
     ported 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 ichwd 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 ichwd driver first appeared in FreeBSD 5.3.

AUTHORS

     The ichwd driver was written by Wm. Daryl Hawkins <dhawkins@tamu.edu> of Texas A&M University and Dag-Erling Smorgrav <des@FreeBSD.org>.
     This manual page was written by Dag-Erling Smorgrav <des@FreeBSD.org>.

BSD
								  August 20, 2008							       BSD