cftest.c

周立公smartarm2200 块设备例子

#include "config.h"
#include <stdio.h>

int main(void)
{
    FILE *fp;
    int num;
    int folder;
   
    char a[14] = "Hello uCLinux!";
    
    fp = fopen("/fff/linux.txt","w+");
    if(fp == NULL)
    {
        printf("\nCan't open linux.txt!\n");
        exit(-1);
    }

    num = fwrite(a, sizeof(a), 1, fp);
    printf("%d byte data has written to linux.txt\n", num*sizeof(a));

    folder =  mkdir("/fff/linux", 1);
    if(folder == -1)
    {
        printf("\n Cann't create folder linux!\nIt has existed or the path is error!\n");
        exit(-1);
    }
    printf("Folder linux created success!\n");


    close(fp);
    return 0;
}