.\"	$OpenBSD: cgtwelve.4,v 1.4 2008/03/31 08:12:22 jmc Exp $
.\"
.\" Copyright (c) 2002 Miodrag Vallat.  All rights reserved.
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.Dd $Mdocdate: March 31 2008 $
.Dt CGTWELVE 4 sparc64
.Os
.Sh NAME
.Nm cgtwelve
.Nd accelerated 24-bit color frame buffer
.Sh SYNOPSIS
.Cd "cgtwelve* at sbus?"
.Cd "wsdisplay* at cgtwelve?"
.Sh DESCRIPTION
The
.Nm
is a triple-slot SBus color frame buffer, with graphics acceleration
and overlay capabilities.
.Pp
The
.Nm
driver interfaces the frame buffer with the
.Xr wscons 4
console framework.
It does not provide direct device driver entry points
but makes its functions available via the internal
.Xr wsdisplay 4
interface.
.Sh SEE ALSO
.Xr intro 4 ,
.Xr sbus 4 ,
.Xr wscons 4 ,
.Xr wsdisplay 4
.Sh CAVEATS
The only way to connect a
.Nm
frame buffer to an UltraSPARC is with the help of an
.Xr xbox 4
SBus Expansion subsystem.
.Pp
This driver does not support any acceleration features.