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.Dd February 26, 2021
.Dt VCAUDIO 4
.Os
.Sh NAME
.Nm vcaudio
.Nd Broadcom VideoCore integrated audio device driver
.Sh SYNOPSIS
.Cd "vcaudio* at vchiq?"
.Sh DESCRIPTION
The
.Nm
driver provides support for the VideoCore 4 audio interface found on
Broadcom SoCs used in boards such as the Raspberry Pi.
.Pp
Three outputs are supported:
.Li auto ,
.Li headphones ,
and
.Li hdmi .
The selected output can be changed using the
.Li outputs.select
.Xr mixerctl 1
variable.
.Li headphones
corresponds to the analog 3.5mm jack on the Raspberry Pi.
.Pp
The hardware does not support recording.
.Sh SEE ALSO
.Xr mixerctl 1 ,
.Xr audio 4 ,
.Xr mixer 4 ,
.Xr vchiq 4
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 7.0 .
.Sh BUGS
The playback block size is fixed at 40ms of audio.
The hardware output format is fixed at stereo 48kHz 16-bit LPCM so is
not configurable with
.Xr audiocfg 1 .