struct fb_fix_screeninfo主要用于获取FrameBuffer的固定信息,这些信息无法在应用层被更改,只能通过ioctl函数使用FBIOGET_FSCREENINFO去获取。 2.1struct fb_fix_screeninfo定义: struct fb_fix_screeninfo {char id[16]; /* identification string eg "TT Builtin" */unsigned long smem_start; /* Start of frame ...
int fbfd = 0; struct fb_var_screeninfo vinfo; struct fb_fix_screeninfo finfo; long int screensize = 0; struct fb_bitfield red; struct fb_bitfield green; struct fb_bitfield blue; //打开显示设备 fbfd = open("/dev/fb0", O_RDWR); if (!fbfd) { printf("Error: cannot open framebuffe...
size dspaudio fd printf无效的音频DSPID writedsp audio fd buf size printf 音频DSP无法写入 return0音频渲染代码结束 视频渲染代码 include linux fb includesys mman defineFBDEVICE dev fb0 enumpic format eYUV 420 Planer structvideo fb intvideo fd structfb var screeninfovinfo structfb fix screeninfo...
int fp=0; struct fb_var_screeninfo vinfo; struct fb_fix_screeninfo finfo; fp = open("/dev/fb0",O_RDWR); if (fp < 0) { printf("Error : Can not open framebuffer device\n"); exit(EXIT_FAILURE); } if (ioctl(fp,FBIOGET_FSCREENINFO,&finfo)) { printf("Error reading fixed informat...
资源简介://结构 struct fb_fix_screeninfo finfo struct fb_var_screeninfo vinfo //打开设备 fd = open["/dev/fb0", O_RDWR] if [!fd] { printf["Cannot open framebuffer device.\n"] exit[1] } //取得固定信息 if [ioctl... 标签: struct fb_fix_screeninfo fb_var_screeninfo finfo 上传时...