AUICH(4) BSD Programmer's Manual AUICH(4)NAMEauich - Intel 82801AA/AB/BA/CA/DB/EB, 82440MX, and compatibles PCI audio
driver
SYNOPSIS
auich* at pci? dev ? function ? flags 0x0000
audio* at auich?
DESCRIPTION
The auich driver provides support for the AC97-based audio present on the
Intel 82801AA/AB/BA/CA/DB/EB I/O controller hub
(ICH/ICH0/ICH2/ICH3/ICH4/ICH5), 82440MX chipset, SiS 7012, AMD 768, AMD
8111, NVIDIA nForce and nForce2 chips. The auich DMA engine supports
full-duplex operation and has separate channels for line input and micro-
phone. Unfortunately, simultaneous recording from both line and micro-
phone inputs is not supported due to the current ac97(4) design. Setting
flags to 0x0001 will compensate for machines that have reversed stereo.
SEE ALSOac97(4), audio(4), intro(4), pci(4)HISTORY
The auich device driver appeared in OpenBSD 2.8.
CAVEATS
Some hardware implementations only support 48kHz sampling rates.
MirOS BSD #10-current May 30, 2000 1