开发板：exynos4412（super4412）
内核：Linux 3.0.15
通过mdev工具实现u盘自动挂载步骤如下：一、配置内核
配置内核支持USB大容量存储#make menuconfig选择Device Drivers –> USB support –> <*> Support for Host-side USB <*> OHIC HCD support<*> UHCI HCD (most Intel and VIA) support <*> SL811HS HCD support <*> USB Mass Storage support
开启内核热插拔，在内核根目录下
#vim .configCONFIG_KALLSYMS=yCONFIG_HOTPLUG=y CONFIG_PRINTK=yCONFIG_NET=y 二、配置busybox#make menuconfig选择Linux System Utilities —> [*]mdev [*] Support /etc/mdev.conf [*] Support subdirs/symlinks [*] Support regular expressions substitutions when renaming device [*] Support command execution at device addition/removal [*] Support loading of firmwares三、添加对热插拔事件响应，实现u盘自动挂载与卸载1) 创建mdev.conf文件：#vi /etc/mdev.conf写入：sd[a-z][0-9] 0:0 666 @/etc/hotplug/udisk_insertsd[a-z]0:0 666 $/etc/hotplug/udisk_remove2) 创建udisk_insert文件#mkdir -p /etc/hotplug#vi /etc/hotplug/udisk_insert写入：#!/bin/shmkdir -p /mnt/usbmount /dev/sd[a-z][0-9] /mnt/usb
3) 创建udisk_remove文件
#vi /etc/hotplug/udisk_insert
写入：
#!/bin/sh
umount -l /mnt/usbrm /mnt/usb -rf4)修改脚本权限#chmod 755 /etc/hotplug/*
OK,配置完毕，插上u盘试试吧！
片的时光如浮云般流过，我们的青春单薄的穿梭在蓝天之上。
