lib_fbset.h

浏览该文件的文档.

#ifndef LINUX_LIBV2_SOURCE_FBSET_LIB_FBSET_H_
#define LINUX_LIBV2_SOURCE_FBSET_LIB_FBSET_H_

#include <stdint.h>
#include <unistd.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#include <fcntl.h>
#include <sys/ioctl.h>
#include <linux/types.h>
#include <linux/fb.h>

/*
name:   int lib_fbset(char *dev_name,struct lib_fbinfo* info)
function:
        set Framebuffer arg                                             打开设备，临时设置fb设备的参数，并关闭设备
parameter:
        1.char *dev_name                                                设备名称路径    "/dev/fb0"
        2.struct lib_fbinfo* info                                   存放显示参数数据结构体
return:
        -1                                                                                                      打开设备失败
        -2                                                                                                      读取Framebuffer参数失败
        -3:                                                                                                     设置Framebuffer参数失败
        0                                                                                                       函数正常结束
};
*/
#ifdef __cplusplus
#define FBSET_API extern "C"
#else
#define FBSET_API
#endif

    FBSET_API struct lib_fbinfo
        {
        __u32 xres; // visible resolution
        __u32 yres;
        __u32 pixclock;     // pixel clock in ps (pico seconds)
        __u32 left_margin;  // time from sync to picture
        __u32 right_margin; // time from picture to sync
        __u32 upper_margin; // time from sync to picture
        __u32 lower_margin;
        __u32 hsync_len; // length of horizontal sync
        __u32 vsync_len; //length of vertical sync
        char *data_bit;  //rg: RGB888 RGB666 RGB565
        };

    FBSET_API int lib_fbset(char *dev_name, struct lib_fbinfo *info);

#endif