1 .\" $NetBSD: uaudio.4,v 1.15 2002/02/12 19:53:57 jdolecek Exp $
3 .\" Copyright (c) 1999 The NetBSD Foundation, Inc.
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6 .\" This code is derived from software contributed to The NetBSD Foundation
7 .\" by Lennart Augustsson.
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37 .Nd USB audio device driver
39 To compile this driver into the kernel, place the following lines in your
40 kernel configuration file:
41 .Bd -ragged -offset indent
44 .Cd "device snd_uaudio"
47 Alternatively, to load the driver as a module at boot time, place the
50 .Bd -literal -offset indent
56 driver provides support for
62 audio device consists of a number of components:
63 input terminals (e.g.\& USB digital input), output terminals (e.g.\&
64 speakers), and a number of units in between (e.g.\& volume control).
67 .Ql USB Audio Class Specification
73 .%T "USB Audio Class Specifications"
74 .%U http://www.usb.org/developers/devclass_docs/
79 driver first appeared in
82 This manual page was adopted from
87 .An Hiten Pandya Aq hmp@FreeBSD.org .
93 as of this writing, does not handle device un-registrations in a properly
94 abstracted manner, i.e., a detach request is refused by the
96 framework if the device is in use.
99 and supposedly other detach-able busses, it is necessary to allow the
100 device un-registration to complete successfully, otherwise the driver
101 leaves wild pointers to invalid data structures and thus leading to a panic.