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.\" $OpenBSD: azalia.4,v 1.11 2007/03/06 16:00:45 jasper Exp $
.\" $NetBSD: azalia.4,v 1.2 2005/06/22 04:19:09 kent Exp $
.\"
.\" Copyright (c) 2005 The NetBSD Foundation, Inc.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to The NetBSD Foundation
.\" by TAMURA Kent
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\" must display the following acknowledgement:
.\" This product includes software developed by the NetBSD
.\" Foundation, Inc. and its contributors.
.\" 4. Neither the name of The NetBSD Foundation nor the names of its
.\" contributors may be used to endorse or promote products derived
.\" from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
.Dd June 22, 2005
.Dt AZALIA 4
.Os
.Sh NAME
.Nm azalia
.Nd Generic High Definition Audio device
.Sh SYNOPSIS
.Cd "azalia* at pci?"
.Cd "audio* at azalia?"
.Sh DESCRIPTION
The
.Nm
device driver is expected to support any PCI device which is
compliant with the High Definition Audio Specification 1.0.
Known supported devices are Intel 82801FB/GB/HB I/O controller hub
(ICH6, ICH7, ICH8), ALI M5461, ATI SB450/SB600, NVIDIA MCP51/55/61/65,
SiS 966/966L and VIA Technologies VT8237A/VT8251 chips.
.Sh SEE ALSO
.Xr audio 4 ,
.Xr pci 4
.Pp
.Pa http://www.intel.com/standards/hdaudio/
.Sh HISTORY
The
.Nm
device driver first appeared in
.Nx 3.0 .
.Ox
support first appeared in
.Ox 4.0 .
.Sh BUGS
S/PDIF support is not implemented.
.Pp
Non-PCM encodings such as Float32 and AC-3 are not supported.
.Pp
There is no way to use 20-bit or 24-bit precision because of a
limitation of the MI audio framework.
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