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ARCOFI(4) Kernel Interfaces Manual ARCOFI(4) NAME arcofi -- Siemens 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. SEE ALSO audioctl(1), mixerctl(1), ioctl(2), audio(4), dio(4), intro(4) HISTORY The arcofi driver was written for OpenBSD and first appeared in OpenBSD 5.1, and was ported to NetBSD. NetBSD 7.1.2 August 25, 2014 NetBSD 7.1.2