1.\" $NetBSD: ossaudio.3,v 1.15 2002/10/01 19:27:53 wiz Exp $ 2.\" 3.\" Copyright (c) 1997 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Lennart Augustsson, 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the NetBSD 20.\" Foundation, Inc. and its contributors. 21.\" 4. Neither the name of The NetBSD Foundation nor the names of its 22.\" contributors may be used to endorse or promote products derived 23.\" from this software without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 26.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 27.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 28.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 29.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35.\" POSSIBILITY OF SUCH DAMAGE. 36.\" 37.Dd October 16, 1997 38.Dt OSSAUDIO 3 39.Os 40.Sh NAME 41.Nm ossaudio 42.Nd OSS audio emulation 43.Sh LIBRARY 44.Lb libossaudio 45.Sh SYNOPSIS 46.Fd #include \*[Lt]soundcard.h\*[Gt] 47.Sh DESCRIPTION 48The 49.Nm 50library provides an emulation of the OSS (Linux) audio 51interface. 52.Pp 53Use the native interface for new programs and the emulation 54library only for porting programs. 55.Sh SEE ALSO 56.Xr audio 4 , 57.Xr midi 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 75that would block in non-blocking mode Linux returns 76.Dv EINTR 77whereas 78.Nx 1.3 79returns 80.Dv EAGAIN . 81