Manual browser: arcofi(4)

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ARCOFI(4) Kernel Interfaces Manual ARCOFI(4)

NAME

arcofiSiemens PSB2160 audio codec

SYNOPSIS

arcofi* at dio?
audio* at audiobus?

DESCRIPTION

The arcofi driver supports the HP “Audio1” audio devices, based upon the Siemens PSB2160 “ARCOFI” codec, to implement the audio device interface described in audio(4).

This device is found onboard HP 9000 workstations models 425e, 705 and 710.

The arcofi is limited to a phone-quality mono, 8000 Hz sound.

AUDIOCTL SETTINGS

The following encodings are supported:

AUDIO_ENCODING_ULAW
AUDIO_ENCODING_ALAW
AUDIO_ENCODING_SLINEAR_BE
Natively supported.

AUDIO_ENCODING_SLINEAR
AUDIO_ENCODING_SLINEAR_LE
AUDIO_ENCODING_ULINEAR_LE
AUDIO_ENCODING_ULINEAR_BE
Software converted to AUDIO_ENCODING_SLINEAR_BE encoding.

MIXERCTL SETTINGS

The arcofi has three audio ports:

inputs.line
The ‘line in’ jack connector.
outputs.line
The ‘line out’ jack connector.
outputs.speaker
The built-in speaker.

Each port has a volume control, and can be muted.

The outputs.line and outputs.speaker volume settings are tied to the same hardware setting.

HISTORY

The arcofi driver was written for OpenBSD and first appeared in OpenBSD 5.1, and was ported to NetBSD.
August 25, 2014 NetBSD 7.0