: 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
목차
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
