Manual browser: arcofi(4)
| ARCOFI(4) | Kernel Interfaces Manual | ARCOFI(4) |
NAME
arcofi — Siemens PSB2160 audio codecSYNOPSIS
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_BEencoding.
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 |