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CGFOUR(4) NetBSD/sparc Kernel Interfaces Manual CGFOUR(4)
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cgfour -- Sun 8-bit color frame buffer
cgfour0 at obio0 addr 0xfb300000 level 4 (sun4/300)
cgfour0 at obio0 addr 0x0b300000 level 4 (sun4/100)
The cgfour is a memory based color frame buffer with overlay plane. Its
pixel memory and control planes can be mapped into a user process address
space by using the mmap(2) system call. The cgfour driver supports the
minimal ioctl's needed to run Xorg(1).
sparc/bwtwo(4), sparc/cgeight(4), sparc/cgsix(4), sparc/cgthree(4),
NetBSD 9.1 February 17, 2017 NetBSD 9.1