linux 复位usb设备 模拟热插拔脚本

 获取USB设备数量 ：DEVICE_NUM=`lspci |grep USB|awk -F' ' '{print$1}'|wc -l`

获取设备号   DEVICE=`lspci |grep USB|awk -F' ' '{print "0000:"$1}'|sed -n ${i}p`

设备解绑：echo -n "设备号" | tee /sys/bus/pci/drivers/ehci-pci/unbind

设备绑定：echo -n "设备号" | tee /sys/bus/pci/drivers/ehci-pci/bind

#!/bin/sh

bind_usb() {
  echo -n "$1" | tee /sys/bus/pci/drivers/ehci-pci/bind
}

unbind_usb() {
  echo -n "$1" | tee /sys/bus/pci/drivers/ehci-pci/unbind
}

DEVICE_NUM=`lspci |grep USB|awk -F' ' '{print$1}'|wc -l`

for ((i=1; i <= $DEVICE_NUM; i++))
do
        DEVICE=`lspci |grep USB|awk -F' ' '{print "0000:"$1}'|sed -n ${i}p`
        unbind_usb $DEVICE
        bind_usb $DEVICE
done