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author | joel <joel@FreeBSD.org> | 2006-10-01 11:16:31 +0000 |
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committer | joel <joel@FreeBSD.org> | 2006-10-01 11:16:31 +0000 |
commit | 2d73ac3c574e984e10b9f318c78c107f68e638f1 (patch) | |
tree | 8bf8ca12fd4b059d27ffe2de972feebe3642460f /share/man/man4/snd_hda.4 | |
parent | 621cbf8b7de90aa1709659cf401de47fa1070776 (diff) | |
download | FreeBSD-src-2d73ac3c574e984e10b9f318c78c107f68e638f1.zip FreeBSD-src-2d73ac3c574e984e10b9f318c78c107f68e638f1.tar.gz |
Add a manual page for snd_hda(4) and hook it up to the build.
Reviewed by: brueffer, ariff
Diffstat (limited to 'share/man/man4/snd_hda.4')
-rw-r--r-- | share/man/man4/snd_hda.4 | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/share/man/man4/snd_hda.4 b/share/man/man4/snd_hda.4 new file mode 100644 index 0000000..26ac002 --- /dev/null +++ b/share/man/man4/snd_hda.4 @@ -0,0 +1,153 @@ +.\" Copyright (c) 2006 Joel Dahl <joel@FreeBSD.org> +.\" All rights reserved. +.\" +.\" 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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. +.\" +.\" $FreeBSD$ +.\" +.Dd October 1, 2006 +.Dt SND_HDA 4 +.Os +.Sh NAME +.Nm snd_hda +.Nd "Intel High Definition Audio bridge device driver" +.Sh SYNOPSIS +To compile this driver into the kernel, place the following lines in your +kernel configuration file: +.Bd -ragged -offset indent +.Cd "device sound" +.Cd "device snd_hda" +.Ed +.Pp +Alternatively, to load the driver as a module at boot time, place the +following line in +.Xr loader.conf 5 : +.Bd -literal -offset indent +snd_hda_load="YES" +.Ed +.Sh DESCRIPTION +The +.Nm +bridge device driver allows the generic audio driver, +.Xr sound 4 , +to attach to Intel High Definition Audio devices. +The +.Nm +driver supports hardware that conforms with revision 1.0 of the Intel High +Definition Audio specification and tries to behave much like the Microsoft +Universal Audio Architecture (UAA) draft (revision 0.7b) for handling audio +devices. +HDA acts like a primary bus, similar to +.Xr miibus 4 , +for handling various child buses such as audio, modem and HDMI (High Definition +Multimedia Interface). +Only audio is implemented in the +.Nm +driver. +.Pp +The High Definition (HD) Audio specification was developed by Intel as the +logical successor of the old AC'97 specification and has several advantages, +such as higher bandwidth which allows more channels and more detailed formats, +support for several logical audio devices, and general purpose DMA channels. +.Pp +The HDA specification defines the register-level interface, physical link +characteristics, codec programming models, and codec architectural components. +This specification is intended for both device driver developers and hardware +component designers. +.Sh HARDWARE +The +.Nm +driver supports the following audio chipsets: +.Pp +.Bl -bullet -compact +.It +ATI SB450 +.It +Intel 82801F +.It +Intel 82801G +.It +nVidia MCP51 +.It +nVidia MCP55 +.El +.Pp +Generic Audio chipsets compatible with the Intel HDA specification should work, +but have not been verified yet. +The following codecs have been verified to work: +.Pp +.Bl -bullet -compact +.It +Analog Device AD1981HD +.It +Analog Device AD1983 +.It +Analog Device AD1986A +.It +CMedia CMI9880 +.It +Conexant Venice +.It +Realtek ALC260 +.It +Realtek ALC861 +.It +Realtek ALC880 +.It +Realtek ALC882 +.It +Sigmatel STAC9220 +.It +Sigmatel STAC9221 +.It +Sigmatel STAC9221D +.It +Sigmatel STAC922XD +.El +.Sh SEE ALSO +.Xr sound 4 , +.Xr loader.conf 5 +.Sh HISTORY +The +.Nm +device driver first appeared in +.Fx 7.0 . +.Sh AUTHORS +.An -nosplit +The +.Nm +driver was written by +.An Stephane E. Potvin Aq sepotvin@videotron.ca +and +.An Ariff Abdullah Aq ariff@FreeBSD.org . +This manual page was written by +.An Joel Dahl Aq joel@FreeBSD.org . +.Sh BUGS +There are a couple of missing features, such as support for Digital +S/PDIF and multichannel output. +.Pp +A few Hardware/OEM vendors tend to screw up BIOS settings, thus +rendering the +.Nm +driver useless, which usually results in a state where the +.Nm +driver seems to attach and work, but without any sound. |