grfcv —
8/15/16/24/32-bit color graphics driver
grfcv0 at zbus0
grf5 at grfcv0
ite5 at grf5
wsdisplay* at grf5
The grfcv device driver supports graphics boards with
  the S3 Trio64 chipset. It supports the minimal ioctl's needed to run X11.
The grfcv interface supports the following ZorroIII
  expansion card:
  - CyberVision 64
- A Zorro III only card. From phase5, manufacturer 8512, product 34.
 
  - /dev/grf5
- graphics interface special file
- /dev/ttye5
- console interface special file for the internal terminal emulator
Thegrfcv interface first appeared in
  NetBSD 1.1. It was modified for
  NetBSD 6.0 to support
  wsdisplay(4) interface.
The grfcv driver was written by Michael
  Teske and enhanced by Bernd Ernesti. The
  wsdisplay(4) interface was
  added by Frank Wille and Radoslaw
  Kujawa.
grfcv does not support the sync-on-green flag from
  amiga/grfconfig(8).
The
    wsdisplay(4) interface
    does not support all functionality provided by the driver and it can not be
    used at the same time as
    amiga/ite(4). X11 is not
    supported with
    wsdisplay(4). It needs
    more testing.