ffb

- 24-bit UPA color frame buffer and graphics accelerator

Description

ffb is a 24-bit UPA-based color frame buffer and graphics accelerator which comes in the two configurations: single buffered frame and double buffered frame.

Single buffered frame buffer

Consists of 32 video memory planes of 1280 x 1024 pixels, including 24-bit single-buffering and 8-bit X planes.

Double buffered frame buffer

Consists of 96 video memory planes of 1280 x 1024 pixels, including 24-bit double-buffering, 8-bit X planes, 28-bit Z-buffer planes and 4-bit Y planes.

The driver supports the following frame buffer ioctls which are defined in fbio(7I):

FBIOPUTCMAP, FBIOGETCMAP, FBIOSVIDEO, FBIOGVIDEO, FBIOVERTICAL,
FBIOSCURSOR, FBIOGCURSOR, FBIOSCURPOS, FBIOGCURPOS,  FBIOGCURMAX,  
FBIO_WID_PUT,  FBIO_WID_GET

Files

/dev/fbs/ffb0

device special file

See Also

ffbconfig(1M), mmap(2), fbio(7I)