The framebuffer drivers are the simplest form of Linux graphics drivers, requiring little implementation work. They heavily abstract hardware. At this stage, you should be able to enhance either an existing driver (with graphical acceleration functions, for example), or write a fresh one from scratch. However, it is recommended to rely on an existing driver whose hardware shares as many characteristics as possible with the one you need to write the driver for. Let us jump to the next and last chapter, dealing with network devices.
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