debian man page for oss_ich

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)