NAME
snd_es137x - Ensoniq AudioPCI ES137x bridge device driver
SYNOPSIS
To compile this driver into the kernel, place the following lines in your
kernel configuration file:
device sound
device snd_es137x
Alternatively, to load the driver as a module at boot time, place the
following line in loader.conf(5):
snd_es137x_load="YES"
DESCRIPTION
The snd_es137x bridge driver allows the generic audio driver sound(4) to
attach to the Ensoniq 137x audio cards.
Runtime Configuration
The following sysctl(8) variables are available in addition to those
available to all sound(4) devices:
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).
hw.snd.pcm%d.spdif_enabled Enables S/PDIF output on the primary
playback channel. This sysctl(8)
variable is available only if the
device is known to support S/PDIF
output.
dev.pcm.%d.polling Experimental polling mode, where the
driver operates by querying the device
state on each tick using callout(9).
Polling is disabled by default. Do not
enable it unless you are facing weird
interrupt problems or if the device
cannot generate interrupts at all.
HARDWARE
The snd_es137x driver supports the following sound cards:
· Creative CT5880-A
· Creative CT5880-C
· Creative CT5880-D
· Creative CT5880-E
· Creative SB AudioPCI CT4730
· Ensoniq AudioPCI ES1370
· Ensoniq AudioPCI ES1371-A
· Ensoniq AudioPCI ES1371-B
· Ensoniq AudioPCI ES1373-A
· Ensoniq AudioPCI ES1373-B
· Ensoniq AudioPCI ES1373-8
SEE ALSO
sound(4)
HISTORY
The snd_es137x device driver first appeared in FreeBSD 4.0.
AUTHORS
Russell Cattelan 〈cattelan@thebarn.com〉
Cameron Grant 〈cg@FreeBSD.org〉
Joachim Kuebart
Jonathan Noack 〈noackjr@alumni.rice.edu〉