리눅스 lsusb 명령어 사용법(-v,-s,-d,-D,-t,-V)

: lsusb 명령은 USB 버스관련 정보와 연결된 USB 장치를 리스트 합니다.

> 옵션없이 사용시

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
Bus 001 Device 003: ID 0bda:8771 Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 008: ID 303a:1001 Espressif USB JTAG/serial debug unit
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

도표

옵션	의미
-v,--verbose	상세한 정보표시 옵션
-s [bus]:[devnum]	[bus]:[devnum] 에 해당하는 장치 표시 , bus, devnum 생략가능합니다.
-d [vendorId]:[productId]	[vendorId] : [productId] 에 해당하는 장치 표시, 생략가능하며 생략시 모든 장치 표시
-D device	device 에 해당하는 장치 표시 옵션으로 device 에는 /dev/bus/usb/xxx/yyy 등이 들어갑니다.
-t, --tree	tree 형식으로 USB 장치 리스트
-V, --version	버전 표시
-h, --help	도움말 옵션

옵션

-v, --verbose

: 상세정보 디스플레이 옵션

$ lsusb -v -d 303a:1001

Bus 001 Device 008: ID 303a:1001 Espressif USB JTAG/serial debug unit
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x303a
  idProduct          0x1001
  bcdDevice            1.02
  iManufacturer           1 Espressif
  iProduct                2 USB JTAG/serial debug unit
  iSerial                 3 40:4C:CA:43:15:18
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0062
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xc0
      Self Powered
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       0
      iFunction               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      0
      iInterface              0
      CDC Header:
        bcdCDC               1.10
      CDC ACM:
        bmCapabilities       0x02
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      1
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
Device Status:     0x0001
  Self Powered

-s [[bus]:][devnum]

: bus:devnum 에 해당하는 장치를 보여줍니다. bus, devnum 값은 생략 가능합니다.

$ lsusb -s 001:008
Bus 001 Device 008: ID 303a:1001 Espressif USB JTAG/serial debug unit

$ lsusb -s 001:
Bus 001 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
Bus 001 Device 006: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 007: ID 10d5:55a4 Uni Class Technology Co., Ltd 4 Port KVMSwicther
Bus 001 Device 005: ID 0566:3032 Monterey International Corp.
Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 003: ID 0bda:8771 Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ lsusb -s :001
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ lsusb -s :
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
Bus 001 Device 006: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 007: ID 10d5:55a4 Uni Class Technology Co., Ltd 4 Port KVMSwicther
Bus 001 Device 005: ID 0566:3032 Monterey International Corp.
Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 003: ID 0bda:8771 Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

-d [vendor]:[product]

: vendor, product 와 일치하는 장치 표시하기, vendor, prodcut 모두 생략 가능합니다.

$ lsusb
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 0403:6001 Future Technology Devices International, Ltd FT232 Serial (UART) IC
Bus 001 Device 006: ID 093a:2510 Pixart Imaging, Inc. Optical Mouse
Bus 001 Device 007: ID 10d5:55a4 Uni Class Technology Co., Ltd 4 Port KVMSwicther
Bus 001 Device 005: ID 0566:3032 Monterey International Corp.
Bus 001 Device 004: ID 1a40:0101 Terminus Technology Inc. Hub
Bus 001 Device 003: ID 0bda:8771 Realtek Semiconductor Corp. Bluetooth Radio
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ lsusb -d :0003
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub

$ lsusb -d 1d6b:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

$ lsusb -d 0566:3032
Bus 001 Device 005: ID 0566:3032 Monterey International Corp.

-D device

$ lsusb -D /dev/bus/usb/001/008
Device: ID 303a:1001 Espressif USB JTAG/serial debug unit
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass          239 Miscellaneous Device
  bDeviceSubClass         2
  bDeviceProtocol         1 Interface Association
  bMaxPacketSize0        64
  idVendor           0x303a
  idProduct          0x1001
  bcdDevice            1.02
  iManufacturer           1 Espressif
  iProduct                2 USB JTAG/serial debug unit
  iSerial                 3 40:4C:CA:43:15:18
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength       0x0062
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xc0
      Self Powered
    MaxPower              500mA
    Interface Association:
      bLength                 8
      bDescriptorType        11
      bFirstInterface         0
      bInterfaceCount         2
      bFunctionClass          2 Communications
      bFunctionSubClass       2 Abstract (modem)
      bFunctionProtocol       0
      iFunction               0
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        0
      bAlternateSetting       0
      bNumEndpoints           1
      bInterfaceClass         2 Communications
      bInterfaceSubClass      2 Abstract (modem)
      bInterfaceProtocol      0
      iInterface              0
      CDC Header:
        bcdCDC               1.10
      CDC ACM:
        bmCapabilities       0x02
          line coding and serial state
      CDC Union:
        bMasterInterface        0
        bSlaveInterface         1
      CDC Call Management:
        bmCapabilities       0x03
          call management
          use DataInterface
        bDataInterface          1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x82  EP 2 IN
        bmAttributes            3
          Transfer Type            Interrupt
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        1
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass        10 CDC Data
      bInterfaceSubClass      2
      bInterfaceProtocol      0
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x01  EP 1 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x81  EP 1 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
    Interface Descriptor:
      bLength                 9
      bDescriptorType         4
      bInterfaceNumber        2
      bAlternateSetting       0
      bNumEndpoints           2
      bInterfaceClass       255 Vendor Specific Class
      bInterfaceSubClass    255 Vendor Specific Subclass
      bInterfaceProtocol      1
      iInterface              0
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x02  EP 2 OUT
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
      Endpoint Descriptor:
        bLength                 7
        bDescriptorType         5
        bEndpointAddress     0x83  EP 3 IN
        bmAttributes            2
          Transfer Type            Bulk
          Synch Type               None
          Usage Type               Data
        wMaxPacketSize     0x0040  1x 64 bytes
        bInterval               1
Device Status:     0x0001
  Self Powered

-t, --tree

: tree구조로 usb 장치 표시하기

$ lsusb -t
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/8p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/16p, 480M
    |__ Port 8: Dev 2, If 0, Class=Vendor Specific Class, Driver=ftdi_sio, 12M
    |__ Port 10: Dev 8, If 0, Class=Communications, Driver=cdc_acm, 12M
    |__ Port 10: Dev 8, If 1, Class=CDC Data, Driver=cdc_acm, 12M
    |__ Port 10: Dev 8, If 2, Class=Vendor Specific Class, Driver=, 12M
    |__ Port 13: Dev 3, If 1, Class=Wireless, Driver=btusb, 12M
    |__ Port 13: Dev 3, If 0, Class=Wireless, Driver=btusb, 12M

-V, --version

: 버전 정보 표시

$ lsusb -V
lsusb (usbutils) 014

-h,--help

$ lsusb --help
Usage: lsusb [options]...
List USB devices
  -v, --verbose
      Increase verbosity (show descriptors)
  -s [[bus]:][devnum]
      Show only devices with specified device and/or
      bus numbers (in decimal)
  -d vendor:[product]
      Show only devices with the specified vendor and
      product ID numbers (in hexadecimal)
  -D device
      Selects which device lsusb will examine
  -t, --tree
      Dump the physical USB device hierarchy as a tree
  -V, --version
      Show version of program
  -h, --help
      Show usage and help

<기타>

▶현재 연결된 /dev/tty*** 장치찾기

: /proc/kmsg 실행후 usb 장치를 삽입해 주면 아래처럼 로그가 출력되는데 그중 tty**** 로 부분 검색해 줍니다.

$ sudo cat /proc/kmsg
[sudo] password for xxx:
<6>[ 3182.730162] usb 1-10: USB disconnect, device number 17
<6>[ 3187.787520] usb 1-10: new full-speed USB device number 18 using xhci_hcd
<6>[ 3187.937636] usb 1-10: New USB device found, idVendor=10c4, idProduct=ea60, bcdDevice= 1.00
<6>[ 3187.937659] usb 1-10: Product: CP2102N USB to UART Bridge Controller
<6>[ 3187.937671] usb 1-10: SerialNumber: 3a34076b1359ed11aec7b3301d62bc44
<6>[ 3187.942845] usb 1-10: cp210x converter now attached to ttyUSB1


>> 장치 리셋

<6>[ 3315.157291] usb 1-10: USB disconnect, device number 20
<6>[ 3315.645431] usb 1-10: new full-speed USB device number 21 using xhci_hcd
<6>[ 3315.794677] usb 1-10: New USB device found, idVendor=303a, idProduct=1001, bcdDevice= 1.02
<6>[ 3315.794691] usb 1-10: New USB device strings: Mfr=1, Product=2, SerialNumber=3
<6>[ 3315.794700] usb 1-10: Product: USB JTAG/serial debug unit
<6>[ 3315.794706] usb 1-10: Manufacturer: Espressif
<6>[ 3315.794711] usb 1-10: SerialNumber: 40:4C:CA:43:15:18
<6>[ 3315.798175] cdc_acm 1-10:1.0: ttyACM0: USB ACM device

>> 로그가 넘 많으면 아래처럼 grep 사용하세요.
$ sudo cat /proc/kmsg | grep tty
<6>[28168.185554] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1

>> dmesg 를 사용하면 부팅후 연결된 장치를 찾을 수 있습니다.
$ sudo dmesg | grep tty
[    0.083704] printk: console [tty0] enabled
[    0.336563] 00:01: ttyS0 at I/O 0x3f8 (irq = 4, base_baud = 115200) is a 16550A
[    2.957095] usb 1-8: FTDI USB Serial Device converter now attached to ttyUSB0
[28111.962913] usb 1-14: cp210x converter now attached to ttyUSB1
[28115.982145] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1
[28117.875541] usb 1-14: cp210x converter now attached to ttyUSB1
[28132.448628] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1
[28135.540216] usb 1-14: cp210x converter now attached to ttyUSB1
[28137.720267] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1
[28142.653580] usb 1-14: cp210x converter now attached to ttyUSB1
[28164.795095] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1
[28166.757626] usb 1-14: cp210x converter now attached to ttyUSB1
[28168.185554] cp210x ttyUSB1: cp210x converter now disconnected from ttyUSB1
[28172.848717] usb 1-14: cp210x converter now attached to ttyUSB1

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