| TCX(4) | Device Drivers Manual (sparc) | TCX(4) | 
tcx —
tcx* at sbus? slot ? offset ?
tcx is a memory based color frame buffer, with
  graphics acceleration and overlay capabilities. Its control registers, colour
  lookup table and pixel memory can be mapped into a user process address space
  by using the mmap(2) system
  call. The tcx driver supports the minimal ioctl's
  needed to run Xorg(1), and can
  be operated in
  sparc/cgthree(4)
  emulation mode.
| February 17, 2017 | NetBSD 9.4 |