10518 Convert fbio(7I) to mandoc

@@ -1,89 +1,72 @@
 FBIO(7I)                        Ioctl Requests                        FBIO(7I)
 
-
-
 NAME
        fbio - frame buffer control operations
 
 DESCRIPTION
        The frame buffers provided with this release support the same general
-       interface that is defined by <sys/fbio.h>. Each responds to an
-       FBIOGTYPE ioctl(2) request which returns information in a fbtype
-       structure.
+     interface that is defined by <sys/fbio.h>.  Each responds to an FBIOGTYPE
+     ioctl(2) request which returns information in a fbtype structure.
 
-
        Each device has an FBTYPE which is used by higher-level software to
        determine how to perform graphics functions. Each device is used by
-       opening it, doing an FBIOGTYPE ioctl() to see which frame buffer type
-       is present, and thereby selecting the appropriate device-management
+     opening it, doing an FBIOGTYPE ioctl(2) to see which frame buffer type is
+     present, and thereby selecting the appropriate device-management
        routines.
 
-
        FBIOGINFO returns information specific to the GS accelerator.
 
-
-       FBIOSVIDEO and FBIOGVIDEO are general-purpose ioctl() requests for
-       controlling possible video features of frame buffers. These ioctl()
+     FBIOSVIDEO and FBIOGVIDEO are general-purpose ioctl(2) requests for
+     controlling possible video features of frame buffers.  These ioctl(2)
        requests either set or return the value of a flags integer. At this
-       point, only the FBVIDEO_ON option is available, controlled by
-       FBIOSVIDEO. FBIOGVIDEO returns the current video state.
+     point, only the FBVIDEO_ON option is available, controlled by FBIOSVIDEO.
+     FBIOGVIDEO returns the current video state.
 
-
-       The FBIOSATTR and FBIOGATTR ioctl() requests allow access to special
+     The FBIOSATTR and FBIOGATTR ioctl(2) requests allow access to special
        features of newer frame buffers. They use the  fbsattr and fbgattr
        structures.
 
+     Some color frame buffers support the FBIOPUTCMAP and FBIOGETCMAP ioctl(2)
+     requests, which provide access to the colormap.  They use the fbcmap
+     structure.
 
-       Some color frame buffers support the FBIOPUTCMAP and FBIOGETCMAP
-       ioctl() requests, which provide access to the colormap. They use the
-       fbcmap structure.
-
-
        Also, some framebuffers with multiple colormaps will either encode the
        colormap identifier in the high-order bits of the "index" field in the
-       fbcmap structure, or use the FBIOPUTCMAPI and FBIOGETCMAPI ioctl()
+     fbcmap structure, or use the FBIOPUTCMAPI and FBIOGETCMAPI ioctl(2)
        requests.
 
-
        FBIOVERTICAL is used to wait for the start of the next vertical retrace
        period.
 
-
-       FBIOVRTOFFSET Returns the offset to a read-only vertical retrace page
+     FBIOVRTOFFSET Returns the offset to a read-only "vertical retrace page"
        for those framebuffers that support it.  This vertical retrace page may
        be mapped into user space with mmap(2). The first word of the vertical
        retrace page (type unsigned int) is a counter that is incremented every
-       time there is a vertical retrace.  The user process can use this
-       counter in a variety of ways.
+     time there is a vertical retrace.  The user process can use this counter
+     in a variety of ways.
 
+     FBIOMONINFO returns a mon_info structure which contains information about
+     the monitor attached to the framebuffer, if available.
 
-       FBIOMONINFO returns a mon_info structure which contains information
-       about the monitor attached to the framebuffer, if available.
-
-
-       FBIOSCURSOR, FBIOGCURSOR, FBIOSCURPOS and FBIOGCURPOS are used to
-       control the hardware cursor for those framebuffers that have this
-       feature. FBIOGCURMAX returns the maximum sized cursor supported by the
+     FBIOSCURSOR, FBIOGCURSOR, FBIOSCURPOS and FBIOGCURPOS are used to control
+     the hardware cursor for those framebuffers that have this feature.
+     FBIOGCURMAX returns the maximum sized cursor supported by the
        framebuffer.  Attempts to create a cursor larger than this will fail.
 
-
        Finally FBIOSDEVINFO and FBIOGDEVINFO are used to transfer variable-
        length, device-specific information into and out of framebuffers.
 
 SEE ALSO
        ioctl(2), mmap(2), cgsix(7D)
 
 BUGS
-       The FBIOSATTR and FBIOGATTR ioctl() requests are only supported by
-       frame buffers which emulate older frame buffer types. If a frame buffer
+     The FBIOSATTR and FBIOGATTR ioctl(2) requests are only supported by frame
+     buffers which emulate older frame buffer types.  If a frame buffer
        emulates another frame buffer, FBIOGTYPE returns the emulated type. To
        get the real type, use FBIOGATTR.
 
-
        The FBIOGCURPOS ioctl was incorrectly defined in previous operating
        systems, and older code running in binary compatibility mode may get
        incorrect results.
 
-
-
-                                 May 12, 2003                         FBIO(7I)
+illumos                        October 22, 2017                        illumos