Hello, Paul. I wish your opinion to header definitions for rgb and cpu mode interface, Now, fb.h is considering only RGB interface. Framebuffer driver could be used as RGB mode and CPU mode also. How about adding definitions for RGB mode and CPU mode like below? For example, #define FB_MODE_RGB 0 <- default setting for compatibility. #define FB_MODE_CPU 1 Thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-fbdev" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html