fb_fix_screeninfo 的 line_length 成员，含义是一行的 size，以字节数表示，就是屏幕的宽度。fb_var_screeninfo定义了视频硬件一些可变的特性。这些特性在程序运行期间可以由应用程序动态改变。由于篇幅有限在此只对这个结构体中主要的成员作出解释，详细解释请参见fb.h。成员变量xres和yres定义在显示屏上真实显示的...
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 buffer mem (physical address) */__u32 smem_len; /* Length of frame buffer mem */__u32 type; /* see FB_TYPE_* */__...
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 buffer mem (physical address) */__u32 smem_len; /* Length of frame buffer mem */__u32 type; /* see FB_TYPE_* */__...