AUDIO810(4D) AUDIO810(4D)


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(7) for a descriptions of the following attributes:


+--------------------+------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+------------------+
|Architecture | PC-based systems |
+--------------------+------------------+
|Interface Stability | Uncommitted |
+--------------------+------------------+

SEE ALSO


ioctl(2), audio(4I), mixer(4I), streamio(4I), attributes(7)


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


ALC655 Specification -- 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 in audio810.conf is
set too high. It has been reset to the rate
specified in the message. Update
audio810.conf to a lower interrupt rate.


September 12, 2020 AUDIO810(4D)