如何Dump usb device插上移除時的Mount Info

1.
Add dump.sh
#!/bin/sh
env >> /Customer/helper.log
echo "CMD:" $@ >> /Customer/helper.log
echo "----------     end     ----------" >> /Customer/helper.log

2.
echo /Customer/dump.sh > /proc/sys/kernel/hotplug

3.
之後重新插拔device　去看 /Customer/helper.log 有沒有印出　變數
cat /Customer/helper.log