bwtwo(7D)

NAME

     bwtwo - black and white memory frame buffer

SYNOPSIS

     /dev/fbs/bwtwo

DESCRIPTION

     The bwtwo interface provides  access  to  monochrome  memory
     frame buffers. It supports the ioctls described in fbio(7I).

     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/fbs/bwtwo[0-9]
           device files

SEE ALSO

     mmap(2), cgfour(7D), fbio(7I)

BUGS

     Use of vertical-retrace interrupts is not supported.