Cyton dongle fails on ubuntu 18 LTS, previously worked.

Comments

• ai20

  January 2019

  I use to allow the dongle with sudo chmod 666 /dev/ttyUSBN  where N is the number of the port the dongle is in. It ddoesn't work anymore...
• wjcroft Mount Shasta, CA

  January 2019

  AI, hi.

  
  

  Does the dongle show up as a /dev/tty* port when you plug it in, and disappear when you unplug it?

  
  

  Have you tried plugging the dongle into other Linux or Windows systems to see what happens there? On Windows it appears as a COM port.

  
  

  Regards,

  
  

  William

  
  
• ai20

  January 2019

  Does the dongle show up as a /dev/tty* port when you plug it in, and disappear when you unplug it? Yes it does

  However for openbci it cannot find it

   
• ai20

  January 2019

  Not sure it is normal but I got:

  
  

  andrea@andrea-XPS-15-9570:~/Téléchargements/application.linux64$ udevadm info --attribute-walk --name=/dev/ttyUSB0

  
  

  Udevadm info starts with the device specified by the devpath and then

  walks up the chain of parent devices. It prints for every device

  found, all possible attributes in the udev rules key format.

  A rule to match, can be composed by the attributes of the device

  and the attributes from one single parent device.

  
  

    looking at device '/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/ttyUSB0/tty/ttyUSB0':

      KERNEL=="ttyUSB0"

      SUBSYSTEM=="tty"

      DRIVER==""

  
  

    looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0/ttyUSB0':

      KERNELS=="ttyUSB0"

      SUBSYSTEMS=="usb-serial"

      DRIVERS=="ftdi_sio"

      ATTRS{latency_timer}=="16"

      ATTRS{port_number}=="0"

  
  

    looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-1/1-1:1.0':

      KERNELS=="1-1:1.0"

      SUBSYSTEMS=="usb"

      DRIVERS=="ftdi_sio"

      ATTRS{authorized}=="1"

      ATTRS{bAlternateSetting}==" 0"

      ATTRS{bInterfaceClass}=="ff"

      ATTRS{bInterfaceNumber}=="00"

      ATTRS{bInterfaceProtocol}=="ff"

      ATTRS{bInterfaceSubClass}=="ff"

      ATTRS{bNumEndpoints}=="02"

      ATTRS{interface}=="FT231X USB UART"

      ATTRS{supports_autosuspend}=="1"

  
  

    looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1/1-1':

      KERNELS=="1-1"

      SUBSYSTEMS=="usb"

      DRIVERS=="usb"

      ATTRS{authorized}=="1"

      ATTRS{avoid_reset_quirk}=="0"

      ATTRS{bConfigurationValue}=="1"

      ATTRS{bDeviceClass}=="00"

      ATTRS{bDeviceProtocol}=="00"

      ATTRS{bDeviceSubClass}=="00"

      ATTRS{bMaxPacketSize0}=="8"

      ATTRS{bMaxPower}=="90mA"

      ATTRS{bNumConfigurations}=="1"

      ATTRS{bNumInterfaces}==" 1"

      ATTRS{bcdDevice}=="1000"

      ATTRS{bmAttributes}=="a0"

      ATTRS{busnum}=="1"

      ATTRS{configuration}==""

      ATTRS{devnum}=="12"

      ATTRS{devpath}=="1"

      ATTRS{idProduct}=="6015"

      ATTRS{idVendor}=="0403"

      ATTRS{ltm_capable}=="no"

      ATTRS{manufacturer}=="FTDI"

      ATTRS{maxchild}=="0"

      ATTRS{product}=="FT231X USB UART"

      ATTRS{quirks}=="0x0"

      ATTRS{removable}=="removable"

      ATTRS{serial}=="DM00D34G"

      ATTRS{speed}=="12"

      ATTRS{urbnum}=="15"

      ATTRS{version}==" 2.00"

  
  

    looking at parent device '/devices/pci0000:00/0000:00:14.0/usb1':

      KERNELS=="usb1"

      SUBSYSTEMS=="usb"

      DRIVERS=="usb"

      ATTRS{authorized}=="1"

      ATTRS{authorized_default}=="1"

      ATTRS{avoid_reset_quirk}=="0"

      ATTRS{bConfigurationValue}=="1"

      ATTRS{bDeviceClass}=="09"

      ATTRS{bDeviceProtocol}=="01"

      ATTRS{bDeviceSubClass}=="00"

      ATTRS{bMaxPacketSize0}=="64"

      ATTRS{bMaxPower}=="0mA"

      ATTRS{bNumConfigurations}=="1"

      ATTRS{bNumInterfaces}==" 1"

      ATTRS{bcdDevice}=="0415"

      ATTRS{bmAttributes}=="e0"

      ATTRS{busnum}=="1"

      ATTRS{configuration}==""

      ATTRS{devnum}=="1"

      ATTRS{devpath}=="0"

      ATTRS{idProduct}=="0002"

      ATTRS{idVendor}=="1d6b"

      ATTRS{interface_authorized_default}=="1"

      ATTRS{ltm_capable}=="no"

      ATTRS{manufacturer}=="Linux 4.15.0-29-generic xhci-hcd"

      ATTRS{maxchild}=="16"

      ATTRS{product}=="xHCI Host Controller"

      ATTRS{quirks}=="0x0"

      ATTRS{removable}=="unknown"

      ATTRS{serial}=="0000:00:14.0"

      ATTRS{speed}=="480"

      ATTRS{urbnum}=="315"

      ATTRS{version}==" 2.00"

  
  

    looking at parent device '/devices/pci0000:00/0000:00:14.0':

      KERNELS=="0000:00:14.0"

      SUBSYSTEMS=="pci"

      DRIVERS=="xhci_hcd"

      ATTRS{broken_parity_status}=="0"

      ATTRS{class}=="0x0c0330"

      ATTRS{consistent_dma_mask_bits}=="64"

      ATTRS{d3cold_allowed}=="1"

      ATTRS{dbc}=="disabled"

      ATTRS{device}=="0xa36d"

      ATTRS{dma_mask_bits}=="64"

      ATTRS{driver_override}=="(null)"

      ATTRS{enable}=="1"

      ATTRS{irq}=="126"

      ATTRS{local_cpulist}=="0-11"

      ATTRS{local_cpus}=="fff"

      ATTRS{msi_bus}=="1"

      ATTRS{numa_node}=="-1"

      ATTRS{revision}=="0x10"

      ATTRS{subsystem_device}=="0x087c"

      ATTRS{subsystem_vendor}=="0x1028"

      ATTRS{vendor}=="0x8086"

  
  

    looking at parent device '/devices/pci0000:00':

      KERNELS=="pci0000:00"

      SUBSYSTEMS==""

      DRIVERS==""

  
  

  so there are no drivers apparently...
• ai20

  January 2019

  Found something: if I specify the port using OpenBCI master like:

  sudo python OpenBCI_Python-master/user.py  --daisy --add csv_collect raw_00.csv  --record-duration 111 --safety-duration 3  --port /dev/ttyUSB0
  

  
  

  then it works. Is there a way to specify a port when launching the GUI?