1.\" $OpenBSD: ossaudio.3,v 1.8 2003/06/02 11:00:42 jmc Exp $ 2.\" $NetBSD: ossaudio.3,v 1.12 2001/05/19 17:23:39 jdolecek Exp $ 3.\" 4.\" Copyright (c) 1997 The NetBSD Foundation, Inc. 5.\" All rights reserved. 6.\" 7.\" This code is derived from software contributed to The NetBSD Foundation 8.\" by Lennart Augustsson, 9.\" 10.\" Redistribution and use in source and binary forms, with or without 11.\" modification, are permitted provided that the following conditions 12.\" are met: 13.\" 1. Redistributions of source code must retain the above copyright 14.\" notice, this list of conditions and the following disclaimer. 15.\" 2. Redistributions in binary form must reproduce the above copyright 16.\" notice, this list of conditions and the following disclaimer in the 17.\" documentation and/or other materials provided with the distribution. 18.\" 3. All advertising materials mentioning features or use of this software 19.\" must display the following acknowledgement: 20.\" This product includes software developed by the NetBSD 21.\" Foundation, Inc. and its contributors. 22.\" 4. Neither the name of The NetBSD Foundation nor the names of its 23.\" contributors may be used to endorse or promote products derived 24.\" from this software without specific prior written permission. 25.\" 26.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36.\" POSSIBILITY OF SUCH DAMAGE. 37.\" 38.Dd October 16, 1997 39.Dt OSSAUDIO 3 40.Os 41.Sh NAME 42.Nm ossaudio 43.Nd OSS audio emulation 44.Sh LIBRARY 45.Nm -lossaudio 46.Sh SYNOPSIS 47.Fd #include <soundcard.h> 48.Sh DESCRIPTION 49The 50.Nm 51library provides an emulation of the OSS (Linux) audio 52interface. 53.Pp 54Use the native interface for new programs and the emulation 55library only for porting programs. 56.Sh SEE ALSO 57.Xr audio 4 58.Sh HISTORY 59The 60.Nm 61library first appeared in 62.Nx 1.3 . 63.Sh BUGS 64The emulation uses a #define for 65.Fn ioctl 66so some obscure programs 67can fail to compile. 68.Pp 69The emulation is incomplete. 70.Pp 71The emulation only covers 72.Fn ioctl , 73there are other differences as well. 74E.g., on a write that would block in non-blocking mode Linux returns 75.Dv EINTR 76whereas 77.Ox 78returns 79.Dv EAGAIN . 80