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ARCOFI(4) NetBSD Kernel Interfaces Manual ARCOFI(4)
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by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
arcofi -- Siemens PSB2160 audio codec
arcofi* at dio?
audio* at audiobus?
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
The arcofi is limited to a phone-quality mono, 8000 Hz sound.
The following encodings are supported:
AUDIO_ENCODING_SLINEAR_BE Natively supported.
AUDIO_ENCODING_ULINEAR_BE Software converted to
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
audioctl(1), mixerctl(1), ioctl(2), audio(4), dio(4), intro(4)
The arcofi driver was written for OpenBSD and first appeared in
OpenBSD 5.1, and was ported to NetBSD.
NetBSD 9.99 August 25, 2014 NetBSD 9.99