==================== Frame Buffer Drivers ==================== - ``include/nuttx/video/fb.h``. All structures and APIs needed to work with frame buffer drivers are provided in this header file. - ``struct fb_vtable_s``. Each frame buffer device driver must implement an instance of ``struct fb_vtable_s``. That structure defines a call table with the following methods: Get information about the video controller configuration and the configuration of each color plane. The following are provided only if the video hardware supports RGB color mapping: The following are provided only if the video hardware supports a hardware cursor: - **Binding Frame Buffer Drivers**. Frame buffer drivers are not normally directly accessed by user code, but are usually bound to another, higher level device driver. In general, the binding sequence is: #. Get an instance of ``struct fb_vtable_s`` from the hardware-specific frame buffer device driver, and #. Provide that instance to the initialization method of the higher level device driver. - **Examples**: ``arch/sim/src/up_framebuffer.c``. See also the usage of the frame buffer driver in the ``graphics/`` directory.