1.\" $OpenBSD: ossaudio.3,v 1.12 2015/09/10 17:55:21 schwarze 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.\" 19.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29.\" POSSIBILITY OF SUCH DAMAGE. 30.\" 31.Dd $Mdocdate: September 10 2015 $ 32.Dt OSSAUDIO 3 33.Os 34.Sh NAME 35.Nm ossaudio 36.Nd OSS audio emulation 37.Sh SYNOPSIS 38.In soundcard.h 39.Sh DESCRIPTION 40The 41.Nm 42library provides an emulation of the OSS (Linux) audio 43interface. 44.Pp 45Use the native interface for new programs and the emulation 46library only for porting programs. 47.Sh SEE ALSO 48.Xr audio 4 49.Sh HISTORY 50The 51.Nm 52library first appeared in 53.Nx 1.3 . 54.Sh BUGS 55The emulation uses a #define for 56.Fn ioctl 57so some obscure programs 58can fail to compile. 59.Pp 60The emulation is incomplete. 61.Pp 62The emulation only covers 63.Fn ioctl , 64there are other differences as well. 65E.g., on a write that would block in non-blocking mode Linux returns 66.Dv EINTR 67whereas 68.Ox 69returns 70.Dv EAGAIN . 71