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+.\"	$OpenBSD: ossaudio.3,v 1.1 1998/05/01 09:23:00 provos Exp $
+.\"	$NetBSD: ossaudio.3,v 1.6 1998/02/05 18:52:19 perry Exp $
+.\"
+.\" Copyright (c) 1997 The NetBSD Foundation, Inc.
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"        This product includes software developed by the NetBSD
+.\"        Foundation, Inc. and its contributors.
+.\" 4. Neither the name of The NetBSD Foundation nor the names of its
+.\"    contributors may be used to endorse or promote products derived
+.\"    from this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+.\" PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 
+.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.Dd October 16, 1997
+.Dt OSSAUDIO 3
+.Os OpenBSD
+.Sh NAME
+.Nm ossaudio
+.Nd OSS audio emulation
+.Sh LIBRARY
+.Lb libossaudio
+.Sh SYNOPSIS
+.Fd #include <soundcard.h>
+.Sh DESCRIPTION
+The
+.Nm
+library provides an emulation of the OSS (Linux) audio
+interface.
+.Pp
+Use the native interface for new programs and the emulation
+library only for porting programs.
+.Sh SEE ALSO
+.Xr audio 4
+.Sh BUGS
+The emulation uses an #define for 
+.Va ioctl()
+so some obscure programs
+can fail to compile.
+.Pp
+The emulation is incomplete.
+.Pp
+The emulation only covers 
+.Va ioctl() ,
+there are other differences as well.  E.g., on a write
+that would block in non-blocking mode Linux returns
+.Dv EINTR
+whereas
+.Ox 2.3
+returns
+.Dv EWOULDBLOCK .
+.Sh HISTORY
+The
+.Nm
+library first appeared in
+.Nx 1.3 .