The framebuffer driver normally has three layers.

帧缓冲区驱动程序通常有三层。

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Normally, framebuffer devices give you direct access to the video card's memory.

通常，framebuffer设备都会让您直接访问显卡内存。

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Normally, framebuffer devices give you direct access to the video card's memory.

通常，framebuffer设备都会让您直接访问显卡内存。

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