摘要： http://pandorawiki.org/Kernel_interfacedouble bufferingThis can be achieved using FBIOPAN_DISPLAY ioctl system call. For this you need to mmap framebuffer of double sizebuffer1 = mmap(0, 800*480*2 * 2, PROT_WRITE, MAP_SHARED, fbdev, 0);buffer2 = (char *)mem + 800*480*2;Then to display buffer2 you wo 阅读全文