BWTWO(4) NetBSD/sun3 Kernel Interfaces Manual BWTWO(4)Powered by man-cgi (2020-09-24). Maintained for NetBSD by Kimmo Suominen. Based on man-cgi by Panagiotis Christias.
bwtwo -- Sun monochromatic frame buffer
bwtwo0 at obmem0 addr ?
The bwtwo is a memory based black and white frame buffer. It supports the minimal ioctl's needed to run X.
sun3/cgfour(4), sun3/cgtwo(4) NetBSD 9.0 February 17, 2017 NetBSD 9.0