Jtdylktuy

This device works fine on windows, while on Ubuntu 16.04 I can see it only in the connected devices list but no /dev/tty* ports are instantiated, making it impossible to access it.

The lsusb -v output regarding that device is the following:

Bus 003 Device 005: ID 0483:5750 STMicroelectronics 

Couldn't open device, some information will be missing

Device Descriptor:

  bLength                18

  bDescriptorType         1

  bcdUSB               2.00

  bDeviceClass            0 (Defined at Interface level)

  bDeviceSubClass         0 

  bDeviceProtocol         0 

  bMaxPacketSize0        64

  idVendor           0x0483 STMicroelectronics

  idProduct          0x5750 

  bcdDevice            2.01

  iManufacturer           1 

  iProduct                2 

  iSerial                 3 

  bNumConfigurations      1

  Configuration Descriptor:

    bLength                 9

    bDescriptorType         2

    wTotalLength           41

    bNumInterfaces          1

    bConfigurationValue     1

    iConfiguration          0 

    bmAttributes         0xc0

      Self Powered

    MaxPower              300mA

    Interface Descriptor:

      bLength                 9

      bDescriptorType         4

      bInterfaceNumber        0

      bAlternateSetting       0

      bNumEndpoints           2

      bInterfaceClass         3 Human Interface Device

      bInterfaceSubClass      0 No Subclass

      bInterfaceProtocol      0 None

      iInterface              0 

        HID Device Descriptor:

          bLength                 9

          bDescriptorType        33

          bcdHID               1.10

          bCountryCode            0 Not supported

          bNumDescriptors         1

          bDescriptorType        34 Report

          wDescriptorLength      33

         Report Descriptors: 

           ** UNAVAILABLE **

      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               2

      Endpoint Descriptor:

        bLength                 7

        bDescriptorType         5

        bEndpointAddress     0x01  EP 1 OUT

        bmAttributes            3

          Transfer Type            Interrupt

          Synch Type               None

          Usage Type               Data

        wMaxPacketSize     0x0040  1x 64 bytes

        bInterval               2

Is there any way to associate it to a usb port?

EDIT: The mentioned device is a programmable servo controller. I should send commands to it through serial communication, that's why I would like to have it mapped on a /dev/tty*-like port.

EDIT #2: I have added the rule in udev, still I can't access the device properly. Here I provide the related output from the /var/log/syslog:

Jan 30 13:10:02 cr055 kernel: [  615.391231] usb 3-1: new full-speed USB device number 10 using xhci_hcd

Jan 30 13:10:03 cr055 kernel: [  615.540602] usb 3-1: New USB device found, idVendor=0483, idProduct=5750

Jan 30 13:10:03 cr055 kernel: [  615.540605] usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3

Jan 30 13:10:03 cr055 kernel: [  615.540607] usb 3-1: Product: LOBOT

Jan 30 13:10:03 cr055 kernel: [  615.540609] usb 3-1: Manufacturer: MyUSB_HID

Jan 30 13:10:03 cr055 kernel: [  615.540610] usb 3-1: SerialNumber: 498F248E3033

Jan 30 13:10:03 cr055 kernel: [  615.541725] hid-generic 0003:0483:5750.0003: hiddev0,hidraw0: USB HID v1.10 Device [MyUSB_HID LOBOT] on usb-0000:00:14.0-1/input0

Jan 30 13:10:03 cr055 mtp-probe: checking bus 3, device 10: "/sys/devices/pci0000:00/0000:00:14.0/usb3/3-1"

Jan 30 13:10:03 cr055 mtp-probe: bus: 3, device: 10 was not an MTP device

You modify UDEV info to assign a tty to the device when it is plugged in. Something similar to the below might be appropriate

SUBSYSTEM=="tty", ATTRS{idVendor}=="0483", ATTRS{idProduct}=="483", ATTRS{serial}=="00492F60", SYMLINK+="ttyS99"

You would add this to a file (which starts with a number- and ends .rules) in /etc/udev/rules.d - eg /etc/cudev/rules.d/20-microontroller.rules

You would then need to restart udev.

BTW, its generally a good idea to provide the log output generated in /var/log/messages or /var/log/syslog when you plug a device in.