.\" Copyright (c) 2004 Atte Peltomaki
.\" All rights reserved.
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.\" $FreeBSD$
.\"
.Dd August 27, 2004
.Dt SND_ES137X 4
.Os
.Sh NAME
.Nm snd_es137x
.Nd "Ensoniq AudioPCI ES137x bridge device driver"
.Sh SYNOPSIS
.Cd "device sound"
.Cd "device snd_es137x"
.Sh DESCRIPTION
The
.Nm
bridge driver allows the generic audio driver
.Xr sound 4
to attach to the Ensoniq 137x audio cards.
.Ss Runtime Configuration
The following
.Xr sysctl 8
variables are available in addition to those available to all
.Xr sound 4
devices:
.Bl -tag -width ".Va hw.snd.pcm%d.latency_timer" -offset indent
.It Va hw.snd.pcm%d.latency_timer
Controls the PCI latency timer setting.
Increasing this value will solve most popping and crackling issues
(especially on VIA motherboards).
.It Va hw.snd.pcm%d.spdif_enabled
Enables S/PDIF output on the primary playback channel.
This
.Xr sysctl 8
variable is available only if the device is known to support S/PDIF output.
.El
.Sh HARDWARE
The
.Nm
driver supports the following sound cards:
.Pp
.Bl -bullet -compact
.It
All cards with ES1370/1371 chipset (including SoundBlaster PCI128)
.El
.Sh SEE ALSO
.Xr sound 4
.Sh HISTORY
The
.Nm
manual page first appeared in
.Fx 5.3 .
.Sh AUTHORS
.An "Russell Cattelan" Aq cattelan@thebarn.com
.An "Cameron Grant" Aq cg@FreeBSD.org
.An "Joachim Kuebart"
.An "Jonathan Noack" Aq noackjr@alumni.rice.edu