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