NetBSD/share/man/man4/esl.4

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.\" $NetBSD: esl.4,v 1.3 2001/09/30 00:02:03 wiz Exp $
.\"
.\" Copyright (c) 2001 Jared D. McNeill <jmcneill@invisible.yi.org>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
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.\" notice, this list of conditions and the following disclaimer in the
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.\" must display the following acknowledgement:
.\" This product includes software developed by Jared D. McNeill.
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.Dd July 20, 2001
.Dt ESL 4
.Os
.Sh NAME
.Nm esl
.Nd ESS Technology AudioDrive (Programmed I/O mode) family audio device driver
.Sh SYNOPSIS
.Cd "esl* at pcmcia? function ?"
.Cd "audio* at esl?"
.Cd "opl* at esl?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the ESS 1688 AudioDrive audio devices on a
PCMCIA card.
.Pp
Since there is no way to do DMA over the pcmcia bus, the
.Nm
driver uses a Programmed I/O mode to drive the cards. This is very
inefficient, but is the only way to drive such a card.
.Pp
Cards supported by this driver are capable of 8- and 16-bit audio sample
playback at rates up to 44.1kHz.
.Sh SEE ALSO
.Xr audio 4 ,
.Xr midi 4 ,
.Xr opl 4 ,
.Xr pcmcia 4
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 1.6 .
.Sh AUTHORS
.An Jared D. McNeill Aq jmcneill@invisible.yi.org
.Sh BUGS
Putting a machine into suspend mode while this driver is active will
cause the machine to freeze.
.Pp
Recording is not yet supported by this driver.