| 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_ULAWAUDIO_ENCODING_ALAWAUDIO_ENCODING_SLINEAR_BEAUDIO_ENCODING_SLINEARAUDIO_ENCODING_ULAW
encoding.
AUDIO_ENCODING_SLINEAR_LEAUDIO_ENCODING_ULINEAR_LEAUDIO_ENCODING_ULINEAR_BEAUDIO_ENCODING_SLINEAR_BE
encoding.The arcofi has three audio ports:
inputs.lineoutputs.lineoutputs.spkrEach port has a volume control, and can be muted.
The outputs.line and
outputs.spkr volume settings are tied to the same
hardware setting.
ioctl(2), audio(4), gsc(4), intro(4), audioctl(8), mixerctl(8)
OpenBSD support for
arcofi first appeared in OpenBSD
5.1.
| April 22, 2020 | OpenBSD-current |