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Diffstat (limited to 'static/netbsd/man4/ac97.4')
| -rw-r--r-- | static/netbsd/man4/ac97.4 | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/static/netbsd/man4/ac97.4 b/static/netbsd/man4/ac97.4 new file mode 100644 index 00000000..b8c5fe60 --- /dev/null +++ b/static/netbsd/man4/ac97.4 @@ -0,0 +1,78 @@ +.\" $NetBSD: ac97.4,v 1.2 2005/06/22 04:19:09 kent Exp $ +.\" $OpenBSD: ac97.4,v 1.12 2003/02/18 07:54:53 jmc Exp $ +.\" +.\" Copyright (c) 1999, 2000 Constantine Sapuntzakis +.\" +.\" Author: Constantine Sapuntzakis <csapuntz@stanford.edu> +.\" +.\" 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. The name of the author may not be used to endorse or promote +.\" products derived from this software without specific prior written +.\" permission. +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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. +.\" +.Dd October 7, 1999 +.Dt AC97 4 +.Os +.Sh NAME +.Nm ac97 +.Nd generic AC97 codec driver +.Sh DESCRIPTION +AC97 codecs contain the analog-to-digital (A/D), digital-to-analog +(D/A), and mixing circuitry of many modern sound cards. +AC97 codecs, for the most part, do not talk to host busses like the PCI bus +directly. +Instead, they communicate through an interface chip, called +the host controller. +The Ensoniq AudioPCI 97 (see +.Xr eap 4 ) +is an example of such a host controller. +.Pp +Unlike many drivers, the +.Nm +driver does not appear in the configuration file. +Instead, the driver is automatically attached by the drivers that require it. +.Sh SEE ALSO +.Xr auacer 4 , +.Xr auich 4 , +.Xr auixp 4 , +.Xr autri 4 , +.Xr auvia 4 , +.Xr clcs 4 , +.Xr clct 4 , +.Xr eap 4 , +.Xr emuxki 4 , +.Xr esa 4 , +.Xr esm 4 , +.Xr fms 4 , +.Xr neo 4 , +.\" .Xr repulse 4 , +.Xr yds 4 +.Sh BUGS +The +.Nm +driver does not keep track of the current user settings and instead +relies on the hardware to do this. +.Pp +The +.Nm +driver could do more to detect mixer channels that don't work and cull +them from the list. |