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/share/man/man4/man4.powerpc/snd_ai2s.4

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 1.\"-
 2.\" Copyright (c) 2009 Nathan Whitehorn <nwhitehorn@FreeBSD.org>
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26.\" $FreeBSD$
27.\"
28.Dd January 20, 2009
29.Dt SND_AI2S 4
30.Os
31.Sh NAME
32.Nm snd_ai2s
33.Nd "Apple I2S audio device driver"
34.Sh SYNOPSIS
35To compile this driver into the kernel,
36place the following lines in your
37kernel configuration file:
38.Bd -ragged -offset indent
39.Cd "device sound"
40.Cd "device snd_ai2s"
41.Ed
42.Pp
43Alternatively, to load the driver as a
44module at boot time, place the following line in
45.Xr loader.conf 5 :
46.Bd -literal -offset indent
47snd_ai2s_load="YES"
48.Ed
49.Sh DESCRIPTION
50The
51.Nm
52driver provides support for the Apple I2S audio controllers found
53predominantly in G4 and G5 machines, along with the snapper and tumbler
54codecs. Some machines (e.g. the Mac Mini) do not have configurable
55codecs and so lack hardware volume control.
56.Sh HARDWARE
57Chips supported by the
58.Nm
59driver include:
60.Pp
61.Bl -bullet -compact
62.It
63Apple Tumbler Audio
64.It
65Apple Snapper Audio
66.El
67.Sh SEE ALSO
68.Xr sound 4 ,
69.Xr snd_davbus 4
70.Sh HISTORY
71The
72.Nm
73device driver appeared in
74.Nx 2.0
75and then in
76.Fx 8.0 .
77.Sh AUTHORS
78.An -nosplit
79The
80.Nm
81driver was written by
82.An Tsubai Masanari
83.Aq tsubai@netbsd.org ,
84and ported to FreeBSD by
85.An Marco Trillo
86.Aq marcotrillo@gmail.com .
87.Sh BUGS
88Recording and operation with non-44.1 Khz audio are not currently supported.