.\"	$NetBSD: azalia.4,v 1.7 2012/03/13 19:25:39 njoly Exp $
.\"
.\" Copyright (c) 2005 The NetBSD Foundation, Inc.
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by TAMURA Kent
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.Dd March 15, 2007
.Dt AZALIA 4
.Os
.Sh NAME
.Nm azalia
.Nd Generic High Definition Audio device driver
.Sh SYNOPSIS
.Cd "azalia* at pci? dev ? function ?"
.Cd "audio* at audiobus?"
.Pp
.Cd "options AZALIA_DEBUG"
.Sh DESCRIPTION
The
.Nm
device driver is expected to support any PCI device which is
compliant to the High Definition Audio Specification 1.0.
Known supported controllers are Intel 82801F (ICH6)
and Intel 82801G (ICH7).
Known supported codecs are Realtek ALC260, ALC880, ALC882,
Analog Devices AD1981HD, CMedia CMI9880,
Sigmatel STAC9221, and STAC9221D.
.Sh SEE ALSO
.Xr audio 4 ,
.Xr pci 4
.Pp
.Lk http://www.intel.com/design/chipsets/hdaudio.htm "Intel High Definition Audio"
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 3.0 .
.Sh BUGS
Non-PCM encodings such as Float32 and AC-3 are not supported.
.Pp
There is no way to use 20bit or 24bit precision because of a
limitation of the MI audio framework.