1.\" $NetBSD: neo.4,v 1.5 2008/04/30 13:10:54 martin Exp $ 2.\" 3.\" Copyright (c) 2000 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Jason R. Thorpe. 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.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF SUCH DAMAGE. 29.\" 30.Dd June 22, 2005 31.Dt NEO 4 32.Os 33.Sh NAME 34.Nm neo 35.Nd NeoMagic MagicMedia 256 audio device driver 36.Sh SYNOPSIS 37.Cd "neo* at pci? dev ? function ?" 38.Cd "audio* at audiobus?" 39.Sh DESCRIPTION 40The 41.Nm 42driver provides support for the NeoMagic MagicMedia 256AV and 256ZX 43AC'97 audio devices, found on many laptops. 44.Pp 45The MagicMedia 256AV also comes in a variant (usually found on Dell 46and HP laptops) that works in Windows Sound System emulation mode, 47not in AC'97 mode. That variant of the chip must be used with the 48.Xr wss 4 49driver. The 50.Nm 51driver will not attach to such chips. 52.Sh SEE ALSO 53.Xr ac97 4 , 54.Xr audio 4 , 55.Xr intro 4 , 56.Xr midi 4 , 57.Xr pci 4 , 58.Xr wss 4 59.Sh HISTORY 60The 61.Nm 62device driver appeared in 63.Nx 1.5.1 . 64.Sh BUGS 65The MagicMedia 256 series is not well-documented. 66.Pp 67No MIDI or FM synthesizer capability is provided with the MagicMedia 256 68in AC'97 mode. While those capabilities are provided by the Windows driver 69for the chip, they are emulated by the Windows driver, and not directly 70supported by the hardware. 71