find where USB 3.0 device attached

I would like to read a serial input (as for example here ) in linux command line but I am not able to find out the attached device (Arduino) path. I can identify the device: # lsusb Bus 005 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 004 Device 003: ID 2341:0043 Arduino SA Uno R3 (CDC ACM) <- this one Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub but dmesg is showing only this message related # dmesg | grep usb [15026545.556311] usb 4-1: new full-speed USB device number 3 using xhci-hcd [15026545.697929] usb 4-1: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes what also confuses me, is that lspci is not showing this device: # lspci 00:01.0 PCI bridge: Marvell Technology Group Ltd. Device 6820 (rev 04) 00:02.0 PCI bridge: Marvell Technology Group Ltd. Device 6820 (rev 04) 00:03.0 PCI bridge: Marvell Technology Group Ltd. Device 6820 (rev 04) 01:00.0 Network controller: Qualcomm Atheros AR9287 Wireless Network Adapter (PCI-Express) (rev 01) 02:00.0 Network controller: Qualcomm Atheros QCA986x/988x 802.11ac Wireless Network Adapter looking through /dev directory: # ls /dev/ autofs kmsg network_latency ram4 ttyS12 btrfs-control log network_throughput ram5 ttyS13 bus mapper null ram6 ttyS14 console mem port ram7 ttyS15 cpu_dma_latency memory_bandwidth ppp ram8 ttyS2 full mmcblk0 ptmx ram9 ttyS3 fuse mmcblk0boot0 pts random ttyS4 hwrng mmcblk0boot1 ram0 root ttyS5 i2c-0 mmcblk0p1 ram1 rtc0 ttyS6 i2c-1 mmcblk0rpmb ram10 shm ttyS7 i2c-2 mtd0 ram11 snd ttyS8 i2c-3 mtd0ro ram12 spidev0.2 ttyS9 i2c-4 mtd1 ram13 tty ubi_ctrl i2c-5 mtd1ro ram14 ttyS0 urandom i2c-6 mtdblock0 ram15 ttyS1 watchdog i2c-7 mtdblock1 ram2 ttyS10 watchdog0 i2c-8 net ram3 ttyS11 zero I am able to find out these things: 1. no ttyUSB*/ttyACM* path created 2. the path to the device is /dev/bus/usb/004/003 3. it is USB 3.0 that should use xhci-hcd There is one more output, that confuses me even more (the iProduct line that says 2(error)): # lsusb -v -s 004:003 Bus 004 Device 003: ID 2341:0043 Arduino SA Uno R3 (CDC ACM) Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 2 Communications bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x2341 Arduino SA idProduct 0x0043 Uno R3 (CDC ACM) bcdDevice 0.01 iManufacturer 1 Arduino (www.arduino.cc) iProduct 2 (error) iSerial 220 8553130343135121F1A0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 62 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xc0 Self Powered MaxPower 100mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 2 Communications bInterfaceSubClass 2 Abstract (modem) bInterfaceProtocol 1 AT-commands (v.25ter) iInterface 0 CDC Header: bcdCDC 10.01 CDC ACM: bmCapabilities 0x06 sends break line coding and serial state CDC Union: bMasterInterface 0 bSlaveInterface 1 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 255 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 10 CDC Data bInterfaceSubClass 0 Unused bInterfaceProtocol 0 iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x04 EP 4 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: 0x0000 (Bus Powered) Is it a sign that device malfunctions in this environment? Can you help me to find out, how can I find attached address for this device? Background info: the system I am running here is TurrisOS (OpenWrt based). Tested also Debian/Mint/Ubuntu/Manjaro and all of these are attaching the USB without any problem (the device itself is not corrupted). **EDIT**: this is dmesg related output when usbserial drivers installed: [15707335.904584] usbserial: USB Serial support registered for carelink [15707335.904622] usbserial: USB Serial support registered for zio [15707335.904657] usbserial: USB Serial support registered for funsoft [15707335.904686] usbserial: USB Serial support registered for flashloader [15707335.904714] usbserial: USB Serial support registered for google [15707335.904743] usbserial: USB Serial support registered for libtransistor [15707335.904771] usbserial: USB Serial support registered for vivopay [15707335.904802] usbserial: USB Serial support registered for moto_modem [15707335.904832] usbserial: USB Serial support registered for motorola_tetra [15707335.904863] usbserial: USB Serial support registered for novatel_gps [15707335.904891] usbserial: USB Serial support registered for hp4x [15707335.904917] usbserial: USB Serial support registered for suunto [15707335.904944] usbserial: USB Serial support registered for siemens_mpi [15707336.867539] usbcore: registered new interface driver ti_usb_3410_5052 [15707336.867582] usbserial: USB Serial support registered for TI USB 3410 1 port adapter [15707336.867611] usbserial: USB Serial support registered for TI USB 5052 2 port adapter [15721145.188760] usb 4-1: new full-speed USB device number 4 using xhci-hcd [15721145.330360] usb 4-1: ep 0x82 - rounding interval to 1024 microframes, ep desc says 2040 microframes **EDIT 2**: When I googled around, I found this script which clearly claims, that I need to: opkg install kmod-usb-acm in order to attach these devices.