oss_ich(7) [debian man page]

oss_ich(7)							    OSS Devices 							oss_ich(7)

NAME

       oss_ich - Intel ICH/SiS7012/Nvidia/AMD audio device driver.

DESCRIPTION

       Open Sound System driver for Intel ICH, nVidia Nforce, AMD and SiS 7012 devices.

OPTIONS

       o  intelpci_rate_tuning=<NNN>  (default	is  240)  Some	Compaq Deskpro models (EN and EX at least) and certain Dell models play and record
	  audio at a higher speed than what is expected. If you have an Intel815 motherboard with an AD1885 you can try setting the  parameter	to
	  240, 280 or 330 and see which works for your system. The way to figure out the the right intelpci_rate_tuning value is using the osstest
	  application.	It reports a sample rate drift value ("Sample rate drift" or "srate drift").  Use the following formula (round the  result
	  to the nearest integer):

	  <intelpci_rate_tuning = (240*(drift+100))/100>

       o  intelpci_force_mmio=<0|1>  (default  is  0=Disable) This option can be used to force the ICH4/ICH5 and ICH6 controllers to run in memory
	  mapped mode to free up I/O address space.

       o  ich_jacksense=<0|1> (default is 0) Force use of jacksensing on some AD198x mixers.

FILES

       /etc/oss4/conf/oss_ich.conf
	      Device configuration file.

AUTHOR

       4Front Technologies

								 16 December 2012							oss_ich(7)

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