40 
  41      FBIOVRTOFFSET Returns the offset to a read-only "vertical retrace page"
  42      for those framebuffers that support it.  This vertical retrace page may
  43      be mapped into user space with mmap(2).  The first word of the vertical
  44      retrace page (type unsigned int) is a counter that is incremented every
  45      time there is a vertical retrace.  The user process can use this counter
  46      in a variety of ways.
  47 
  48      FBIOMONINFO returns a mon_info structure which contains information about
  49      the monitor attached to the framebuffer, if available.
  50 
  51      FBIOSCURSOR, FBIOGCURSOR, FBIOSCURPOS and FBIOGCURPOS are used to control
  52      the hardware cursor for those framebuffers that have this feature.
  53      FBIOGCURMAX returns the maximum sized cursor supported by the
  54      framebuffer.  Attempts to create a cursor larger than this will fail.
  55 
  56      Finally FBIOSDEVINFO and FBIOGDEVINFO are used to transfer variable-
  57      length, device-specific information into and out of framebuffers.
  58 
  59 SEE ALSO
  60      ioctl(2), mmap(2), cgsix(7D)
  61 
  62 BUGS
  63      The FBIOSATTR and FBIOGATTR ioctl(2) requests are only supported by frame
  64      buffers which emulate older frame buffer types.  If a frame buffer
  65      emulates another frame buffer, FBIOGTYPE returns the emulated type.  To
  66      get the real type, use FBIOGATTR.
  67 
  68      The FBIOGCURPOS ioctl was incorrectly defined in previous operating
  69      systems, and older code running in binary compatibility mode may get
  70      incorrect results.
  71 
  72 illumos                        October 22, 2017                        illumos

  40 
  41      FBIOVRTOFFSET Returns the offset to a read-only "vertical retrace page"
  42      for those framebuffers that support it.  This vertical retrace page may
  43      be mapped into user space with mmap(2).  The first word of the vertical
  44      retrace page (type unsigned int) is a counter that is incremented every
  45      time there is a vertical retrace.  The user process can use this counter
  46      in a variety of ways.
  47 
  48      FBIOMONINFO returns a mon_info structure which contains information about
  49      the monitor attached to the framebuffer, if available.
  50 
  51      FBIOSCURSOR, FBIOGCURSOR, FBIOSCURPOS and FBIOGCURPOS are used to control
  52      the hardware cursor for those framebuffers that have this feature.
  53      FBIOGCURMAX returns the maximum sized cursor supported by the
  54      framebuffer.  Attempts to create a cursor larger than this will fail.
  55 
  56      Finally FBIOSDEVINFO and FBIOGDEVINFO are used to transfer variable-
  57      length, device-specific information into and out of framebuffers.
  58 
  59 SEE ALSO
  60      ioctl(2), mmap(2)
  61 
  62 BUGS
  63      The FBIOSATTR and FBIOGATTR ioctl(2) requests are only supported by frame
  64      buffers which emulate older frame buffer types.  If a frame buffer
  65      emulates another frame buffer, FBIOGTYPE returns the emulated type.  To
  66      get the real type, use FBIOGATTR.
  67 
  68      The FBIOGCURPOS ioctl was incorrectly defined in previous operating
  69      systems, and older code running in binary compatibility mode may get
  70      incorrect results.
  71 
  72 illumos                        February 17, 2020                       illumos