Question

基本上我需要验证USB驱动器是否连接到某个USB端口。我有以下内容：

USB驱动器虚拟标记：

白色，绿色，红色

我有3个USB端口也是物理标签：

白色，绿色，红色

使用BLKID我可以从驱动器接收信息，例如

BLKID Example
/dec/sdb1: SEC_TYPE="msdos" LABEL="WHTIE" UUID="78FE-870D" TYPE="vfat"

因此我只知道标签就知道驱动器本身。现在我使用LSPCI我可以获得有关USB端口的信息，因为我知道每个桥的ID。例如：

LSPCI Example
0a.00.0 USB Controller: some info 4d88

所以最后一部分4d88是PCI ID。

所以我知道每个端口的PCI ID，需要将它们与USB驱动器本身相匹配，例如：

4d88 = WHITE
4dC0 = GREEN
4d84 = RED

我不知道如何匹配/检查这种关系。任何帮助将不胜感激。

答案：感谢您的帮助。

#!/bin/bash

#variables
error="ERROR : Incorrect Command use 'usb_pci.sh'"
pci="USB PCI Check Successful"

errorstatus_white_pci="ERROR : USB PCI FAILED : WHITE Drive"
errorstatus_green_pci="ERROR : USB PCI FAILED : GREEN Drive"
errorstatus_red_pci="ERROR : USB PCI FAILED : RED Drive"

pci_check_white=4dc9
pci_check_green=4d81
pci_check_red=4dc5

#Takes USB label and gets /sys/block/sd?
echo "checking path for USB Label" 
path_white=$(blkid | grep WHITE | cut -d : -f 1 | sed 's|[0-9]*$||; s|^/dev/|/sys/block/|')
echo "white: "$path_white
path_green=$(blkid | grep GREEN | cut -d : -f 1 | sed 's|[0-9]*$||; s|^/dev/|/sys/block/|')
echo "green: "$path_green
path_red=$(blkid | grep RED | cut -d : -f 1 | sed 's|[0-9]*$||; s|^/dev/|/sys/block/|')
echo "red: "$path_red

#Takes /sys/block/sd? and gets PCI Path xx:xx.x
echo "checking path to PCI path" 
pci_path_white=$(ls -l ${path_white} | xargs | cut -d / -f 8 | cut -b 6-13)
echo "white: "$pci_path_white
pci_path_green=$(ls -l ${path_green} | xargs | cut -d / -f 8 | cut -b 6-13)
echo "green: "$pci_path_green
pci_path_red=$(ls -l ${path_red} | xargs | cut -d / -f 8 | cut -b 6-13)
echo "red: "$pci_path_red

#Takes xx:xx.x and gets the PCI Device ID xxxx
echo "checking PCI path to PCI Device ID" 
pci_device_id_white=$(lspci -s ${pci_path_white} | tail -c -5)
echo "white: "$pci_device_id_white
pci_device_id_green=$(lspci -s ${pci_path_green} | tail -c -5)
echo "green: "$pci_device_id_green
pci_device_id_red=$(lspci -s ${pci_path_red} | tail -c -5)
echo "red: "$pci_device_id_red

#check if pci_device_id_xxxx = pci_check_xxxx
echo "checking PCI Device ID equals what it should" 
if [ $pci_device_id_white = $pci_check_white ] ; then
    echo "WHITE USB PCI Check Successful"
else
    echo $errorstatus_white_pci
    exit 1
fi
if [ $pci_device_id_green = $pci_check_green ] ; then
    echo "GREEN USB PCI Check Successful"
else
    echo $errorstatus_green_pci
    exit 1
fi
if [ $pci_device_id_red = $pci_check_red ] ; then
    echo "RED USB PCI Check Successful"
else
    echo $errorstatus_red_pci
    exit 1
fi
echo $pci
exit 0

编辑：

请求转储lspci，lsusb，blkid。

lspci
00:00.0 Host bridge: Intel Corporation Unknown device 0104 (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Unknown device 0126 (rev 09)
00:16.0 Communication controller: Intel Corporation Unknown device 1c3a (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04)
00:1a.0 USB Controller: Intel Corporation Unknown device 1c2d (rev 04)
00:1b.0 Audio device: Intel Corporation Unknown device 1c20 (rev 04)
00:1c.0 PCI bridge: Intel Corporation Unknown device 1c10 (rev b4)
00:1c.2 PCI bridge: Intel Corporation Unknown device 1c14 (rev b4)
00:1c.3 PCI bridge: Intel Corporation Unknown device 1c16 (rev b4)
00:1c.5 PCI bridge: Intel Corporation Unknown device 1c1a (rev b4)
00:1d.0 USB Controller: Intel Corporation Unknown device 1c26 (rev 04)
00:1f.0 ISA bridge: Intel Corporation Unknown device 1c4f (rev 04)
00:1f.2 RAID bus controller: Intel Corporation Mobile 82801 SATA RAID Controller (rev 04)
00:1f.3 SMBus: Intel Corporation Unknown device 1c22 (rev 04)
08:00.0 PCI bridge: Integrated Device Technology, Inc. PES4T4 PCI Express Switch (rev 0e)
09:02.0 PCI bridge: Integrated Device Technology, Inc. PES4T4 PCI Express Switch (rev 0e)
09:03.0 PCI bridge: Integrated Device Technology, Inc. PES4T4 PCI Express Switch (rev 0e)
09:04.0 PCI bridge: Integrated Device Technology, Inc. PES4T4 PCI Express Switch (rev 0e)
0a:00.0 USB Controller:  Unknown device 4d88
0a:00.1 USB Controller:  Unknown device 4dc9
0a:00.2 System peripheral:  Unknown device 4dca
0a:00.3 Communication controller:  Unknown device 4d8b
0b:00.0 USB Controller:  Unknown device 4dc0
0b:00.1 USB Controller:  Unknown device 4d81
0b:00.2 System peripheral:  Unknown device 4d8e
0b:00.3 Serial controller:  Unknown device 4dcf
0c:00.0 USB Controller:  Unknown device 4d84
0c:00.1 USB Controller:  Unknown device 4dc5
0c:00.2 System peripheral:  Unknown device 4dc6
0c:00.3 Communication controller:  Unknown device 4d87
0d:00.0 SD Host controller: O2 Micro, Inc. Unknown device 8221 (rev 05)
0d:00.1 Mass storage controller: O2 Micro, Inc. Unknown device 8231 (rev 03)

lsusb
Bus 004 Device 001: ID 0000:0000  
Bus 006 Device 001: ID 0000:0000  
Bus 005 Device 001: ID 0000:0000  
Bus 001 Device 002: ID 8087:0024  
Bus 001 Device 001: ID 0000:0000  
Bus 007 Device 001: ID 0000:0000  
Bus 008 Device 001: ID 0000:0000  
Bus 003 Device 003: ID 0718:063d Imation Corp. 
Bus 003 Device 001: ID 0000:0000  
Bus 002 Device 002: ID 8087:0024  
Bus 002 Device 004: ID 0a5c:5800 Broadcom Corp. BCM5880 Secure Applications Processor
Bus 002 Device 001: ID 0000:0000  
Bus 002 Device 003: ID 413c:3012 Dell Computer Corp. Optical Wheel Mouse

blkid
/dev/mapper/VolGroup00-LogVol01: TYPE="swap" UUID="6b361baf-08ae-4f2c-933b-5028c15b6fb5" 
/dev/mapper/VolGroup00-LogVol00: UUID="d15840ac-0073-483d-b630-7d2a497eaac9" TYPE="ext3" 
/dev/sda1: LABEL="/boot" UUID="39331b93-a08d-45b5-b1ea-fcc6586be7bd" TYPE="ext3" 
/dev/VolGroup00/LogVol00: UUID="d15840ac-0073-483d-b630-7d2a497eaac9" TYPE="ext3" 
/dev/VolGroup00/LogVol01: TYPE="swap" UUID="6b361baf-08ae-4f2c-933b-5028c15b6fb5" 
/dev/sdb1: SEC_TYPE="msdos" LABEL="WHITE" UUID="78FE-870D" TYPE="vfat" 
/dev/sdc1: SEC_TYPE="msdos" LABEL="GREEN" UUID="61FE-B32E" TYPE="vfat" 
/dev/sdd1: SEC_TYPE="msdos" LABEL="RED" UUID="E5DB-4A1A" TYPE="vfat"

Answer 1

这就是我在系统上的表现：

第1步：查找设备节点：

# blkid | grep MyDisk
/dev/sdj1: LABEL="MyDisk-0" UUID="4876-5945" TYPE="vfat"

设备节点为/dev/sdj1。

第2步： /sys是您的朋友：

# ll /sys/block/sdj
lrwxrwxrwx 1 root root 0 Feb  3 00:40 /sys/block/sdj -> ../devices/pci0000:00/0000:00:1a.7/usb1/1-2/1-2:1.0/host15/target15:0:0/15:0:0:0/block/sdj/

上面的符号链接目标包含 lot 的有用信息，包括从闪存驱动器通过SCSI和USB子系统返回PCI桥的路径。

第3步：从上面的链接目标中隔离PCI总线ID（在这种情况下为00:1a.7）并检查lspci：

# lspci | grep 00:1a.7
00:1a.7 USB Controller: Intel Corporation 82801JI (ICH10 Family) USB2 EHCI Controller #2

如有疑问，请直观地检查lspci输出......

修改

这是一种非常粗糙且极其脆弱的自动化上述过程的方法：

blkid | grep Label | cut -d : -f 1 | sed 's|[0-9]*$||; s|^/dev/|/sys/block/|' | xargs readlink | cut -d / -f 4 | xargs -n 1 lspci -s

注意：这适用于我的系统，但绝不安全（或推荐）：

如果内核更新改变了/sys文件系统的布局，它将会中断。

如果您有不同的设备布局，它可能会中断，但您应该可以进行调整。

BASH通过PCI ID查找USB驱动器所连接的端口

1 个答案: