arcofi(4) - NetBSD Manual Pages

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ARCOFI(4)               NetBSD 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 10.1                     August 25, 2014                    NetBSD 10.1