grfcv3d —
8/15/16/24/32-bit color graphics driver
grfcv3d0 at zbus0
grf7 at grfcv3d0
ite7 at grf7
wsdisplay* at grf7
The grfcv3d device driver supports graphics boards with
  the S3 Virge chipset. It supports the minimal ioctl's needed to run X11.
The grfcv3d interface supports the following ZorroII/III
  expansion card:
  - CyberVision 64/3D
- A Zorro II/III card. From phase5, manufacturer 8512, product 67.
 
  - /dev/grf7
- graphics interface special file
- /dev/ttye7
- console interface special file for the internal terminal emulator
Thegrfcv3d interface first appeared in
  NetBSD 1.3. It was modified for
  NetBSD 6.0 to support
  wsdisplay(4) interface.
The grfcv3d driver was written by
  Tobias Abt based on
  amiga/grfcv(4) driver.
  Bernd Ernesti. fixed multipie bugs and later
  maintained the driver. The
  wsdisplay(4) interface was
  added by Frank Wille and Radoslaw
  Kujawa.
grfcv3d 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.