1.\" $NetBSD: esm.4,v 1.3 2001/09/19 00:49:58 wiz Exp $ 2.\" 3.\" Copyright (c) 2001 Rene Hexel 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. The name of the author may not be used to endorse or promote products 15.\" derived from this software without specific prior written permission. 16.\" 17.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 22.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 23.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 24.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 25.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27.\" SUCH DAMAGE. 28.\" 29.Dd January 8, 2001 30.Dt ESM 4 31.Os 32.Sh NAME 33.Nm esm 34.Nd ESS Technology Maestro 2/2E PCI Audio Accelerator audio device driver 35.Sh SYNOPSIS 36.Cd "esm* at pci? dev ? function ?" 37.Cd "audio* at esm?" 38.Sh DESCRIPTION 39The 40.Nm 41device driver supports sound cards based on ESS Technology Maestro, 42Maestro-2, and Maestro-2E PCI AC97 Audio Accelerator chips (ES1968 and ES1978). 43Due to their power management capabilities, the Maestro chips are often used 44in laptop and notebook systems. 45.Pp 46The Maestro is a full-duplex device that allows independent playback and 47recording at sample rates between 4000 Hz and 48 kHz. The sound processor 48is capable of handling and converting 8 and 16 bit mono and stereo data. 49.Sh SEE ALSO 50.Xr audio 4 , 51.Xr joy 4 , 52.Xr mpu 4 , 53.Xr pci 4 54.Sh HISTORY 55The 56.Nm 57device driver appeared in 58.Nx 1.6 . 59.Sh BUGS 60Currently, this driver does not support recording, hardware volume settings, 61MIDI, and joystick input. 62