Linux硬件管理命令--lsusb命令详解

命令
显示本机的usb设备列表，可以显示出usb的详细信息，包括设备的读取速度和描述符。

1、语法
       lsusb  [选项]

2、选项列表

　　

选项	说明
-v	告诉lsusb详细显示所示设备的详细信息。这包括设备当前速度的配置描述符。如果可用，类描述符将显示USB设备类，包括集线器、音频、HID、通信和芯片卡。
-s [[bus]:][devnum]	显示指定总线和设备号的设备信息，总线和设备号用十进制标识。格式：lsusb –s 00:01
-d [vendor]:[product]	显示指定厂商和产品编号的设备，用十六进制表示编号。格式：lsusb –d 8086:
-D	显示指定设备文件的设备信息，例如：lsusb –D /proc/bus/usb/001/001。只有 root用户才可以使用这个选项
-t	以树状结构显示
-V	指令版本信息

 如果指定的设备没有被找到，那么返回一个非0值。/usr/share/hwdata/usb.ids文件中记录了所有的USB设备节点的信息，包括制造商、产品号、类、子类、协议等等。

3、实例

        1）直接显示简单的设备信息

[root@localhost ~]# lsusb
//总线号   设备号     厂商ID
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

2）显示详细信息

[root@localhost ~]# lsusb -v

Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hubDevice Descriptor: //设备描述符

bLength 18

  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            9 Hub
  bDeviceSubClass         0 
  bDeviceProtocol         0 Full speed (or root) hub
  bMaxPacketSize0        64
  idVendor           0x1d6b Linux Foundation
  idProduct          0x0002 2.0 root hub
  bcdDevice            4.18
  iManufacturer           3 Linux 4.18.0-80.el8.x86_64 ehci_hcd
  iProduct                2 EHCI Host Controller
  iSerial                 1 0000:00:1d.7
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0019
    bNumInterfaces          1
    bConfigurationValue     1
    iConfiguration          0 
    bmAttributes         0xe0
      Self Powered
      Remote Wakeup
    MaxPower                0mA
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         9 Hub
      bInterfaceSubClass      0 
      bInterfaceProtocol      0 Full speed (or root) hub
      iInterface              0 
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0004  1x 4 bytes
        bInterval              12

Hub Descriptor:     //集线器描述符
  bLength               9
  bDescriptorType      41
  nNbrPorts             6
  wHubCharacteristic 0x000a
    No power switching (usb 1.0)
    Per-port overcurrent protection
  bPwrOn2PwrGood       10 * 2 milli seconds
  bHubContrCurrent      0 milli Ampere
  DeviceRemovable    0x00
  PortPwrCtrlMask    0xff

 Hub Port Status:     //集线器端口状态
   Port 1: 0000.0100 power
   Port 2: 0000.0100 power
   Port 3: 0000.0100 power
   Port 4: 0000.0100 power
   Port 5: 0000.0100 power
   Port 6: 0000.0100 power
can't get device qualifier: Resource temporarily unavailable
can't get debug descriptor: Resource temporarily unavailable


Device Status:     0x0001   //设备状态
  Self Powered

3）显示指定总线上的设备

[root@localhost ~]# lsusb -s 001:001
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

4）显示指定厂商的设备信息

[root@localhost ~]# lsusb -d 1d6b:0001
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

5）以树状结构显示

[root@localhost ~]# lsusb -t
/:  Bus 06.Port 1: Dev 1, class="root_hub", Driver=uhci_hcd/2p, 12M
/:  Bus 05.Port 1: Dev 1, class="root_hub", Driver=uhci_hcd/2p, 12M
/:  Bus 04.Port 1: Dev 1, class="root_hub", Driver=uhci_hcd/2p, 12M
/:  Bus 03.Port 1: Dev 1, class="root_hub", Driver=uhci_hcd/2p, 12M
/:  Bus 02.Port 1: Dev 1, class="root_hub", Driver=ehci-pci/6p, 480M
/:  Bus 01.Port 1: Dev 1, class="root_hub", Driver=ehci-pci/2p, 480M