VGA frame buffer
# sparc64, macppc
vgafb* at pci?
wsdisplay* at vgafb?
vgafb is a memory based color frame
buffer driver for the wscons(4) console framework. It does not provide direct
device driver entry points but makes its functions available via the
internal wsdisplay(4) interface. Both unaccelerated access as a dumb
framebuffer and accelerated access methods are provided to
intro(4), pci(4), wscons(4), wsdisplay(4)