NAME

bwone − Sun one black and white frame buffer

SYNOPSIS

device bwone0 at mb0 csr 0xc0000 priority 3

DESCRIPTION

The bwone interface provides access to Sun-1 black-and-white graphics controller boards.  It supports the FBIOGTYPE ioctl which a program can use to inquire as to the characteristics of the display device; see fbio(4S)

It supports the FBIOGPIXRECT ioctl which allows SunWindows to be run on it; see fbio(4S)

Reading or writing to the frame buffer is not allowed − you must use the mmap(2) system call to map the board into your address space.

FILES

/dev/bwone[0-9]

SEE ALSO

mmap(2), fb(4S), fbio(4S)
Sun 1024 Video Board − User Manual (Sun 800-0420)

DIAGNOSTICS

None. 

BUGS

Use of vertical-retrace interrupts is not supported. 

Sun Release 1.1  —  Last change: 21 March 1984