ARCOFI(4) | Device Drivers Manual | ARCOFI(4) |
arcofi
— Siemens
PSB2160 audio codec
arcofi* at gsc?
audio* at arcofi?
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 mono, 8000 KHz
sound, either with 8-bit phone-quality mu-law or a-law samples, or 16-bit
signed linear samples in big-endian byte order.
The following encodings are supported:
AUDIO_ENCODING_ULAW
AUDIO_ENCODING_ALAW
AUDIO_ENCODING_SLINEAR_BE
AUDIO_ENCODING_SLINEAR
AUDIO_ENCODING_ULAW
encoding.
AUDIO_ENCODING_SLINEAR_LE
AUDIO_ENCODING_ULINEAR_LE
AUDIO_ENCODING_ULINEAR_BE
AUDIO_ENCODING_SLINEAR_BE
encoding.The arcofi
has three audio ports:
inputs.line
outputs.line
outputs.spkr
Each port has a volume control, and can be muted.
The outputs.line
and
outputs.spkr
volume settings are tied to the same
hardware setting.
audioctl(1), mixerctl(1), ioctl(2), audio(4), gsc(4), intro(4)
OpenBSD support for
arcofi
first appeared in OpenBSD
5.1.
April 22, 2014 | OpenBSD-current |