Linux下mount/umount函數應用

針對海思平臺system命令佔用資源較大的問題，因此程序中與系統調用相關的就只能用函數實現了。

demo

mount.c:

#include <sys/mount.h>

int main(void)
{
    int ret = 0;
    ret = mount("/dev/mmcblk0p1","/mnt/sd_card","vfat",MS_SYNCHRONOUS,"iocharset=utf8");
    if(ret == 0)
	printf("mount success!\n");
    else
	printf("mount failed!\n");
    return 0;
}

umount.c

#include <sys/mount.h>

int main(void)
{
    int ret = 0;
    ret = umount("/mnt/sd_card");
    if(ret == 0)
	printf("umount success!\n");
    else
	printf("umount failed!\n");
    return 0;
}

幾個格式化分區的命令

mksdcard.sh

#!/bin/sh

#創建分區，參數爲fdisk.param 
fdisk /dev/mmcblk0 < /mnt/victa/fdisk.param 

#格式化分區
mkfs.vfat /dev/mmcblk0p1

#掛載分區
mount -t vfat /dev/mmcblk0p1 /mnt/mmc/

fdisk.param

d
1
d
2
d
3
d
4
n
p
1


w