xref: /titanic_51/usr/src/man/man7d/audio810.7d (revision 1886f67eb9de99edbcda88765f2c603a30c87fc2)
te
Copyright (c) 2009 Sun Microsystems, Inc. All rights reserved.
The contents of this file are subject to the terms of the Common Development and Distribution License (the "License"). You may not use this file except in compliance with the License. You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE or http://www.opensolaris.org/os/licensing.
See the License for the specific language governing permissions and limitations under the License. When distributing Covered Code, include this CDDL HEADER in each file and include the License file at usr/src/OPENSOLARIS.LICENSE. If applicable, add the following below this CDDL HEADER, with the
fields enclosed by brackets "[]" replaced with your own identifying information: Portions Copyright [yyyy] [name of copyright owner]
AUDIO810 7D "May 13, 2009"
NAME
audio810 - Intel ICH series, nVidia nForce series and AMD 8111 audio core support
DESCRIPTION

The audio810 driver provides support for AC 97 audio controllers embedded in Intel ICH, nVidia nForce, and AMD 8111 chips.

FILES
/kernel/drv/audio810

32-bit kernel driver module

/kernel/drv/amd64/audio810

64-bit x86 kernel driver module

/kernel/drv/audio810.conf

audio810 driver configuration file

ATTRIBUTES

See attributes(5) for a descriptions of the following attributes:

ATTRIBUTE TYPE ATTRIBUTE VALUE
Architecture PC-based systems
Interface Stability Uncommitted
SEE ALSO

ioctl(2), attributes(5), audio(7I), mixer(7I), streamio(7I)

AMD-8111 HyperTransport I/O Hub Data Sheet \(em Advanced Micro Devices Inc.

ALC655 Specification \(em Realtek Inc.

NOTES

Some laptops (including Sony VAIO, among others), have their on-board amplifier powered down by default, meaning that audio is suppressed even if hardware and the audio810 driver are working normally. To correct this, set the ac97-invert-amp=1 property in the /kernel/drv/audio810.conf to power-up the amplifier.

DIAGNOSTICS

In addition to being logged, the following messages may appear on the system console: play-interrupts too low

record-interrupts too low

The interrupt rate in audio810.conf is set too low. It has been reset to the rate specified in the message. Update audio810.conf to a higher interrupt rate.

play-interrupts too high

record-interrupts too high

The interrupt rate set inaudio810.conf is set too high. It has been reset to the rate specified in the message. Update audio810.conf to a lower interrupt rate.