Reply To: Cannot connect to eggbot – linux

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#27025
Mike K
Participant

The value for self.usb_device_path is

/sys/devices/pci0000:00/0000:00:14.0/usb2/2-6


mike@E7440:/sys/class/tty$ cat /sys/devices/pci0000:00/0000:00:14.0/usb2/2-6
cat: '/sys/devices/pci0000:00/0000:00:14.0/usb2/2-6': Is a directory
mike@E7440:/sys/class/tty$ ls /sys/devices/pci0000:00/0000:00:14.0/usb2/2-6
2-6:1.0              bDeviceClass     bNumConfigurations  devnum     ltm_capable   quirks     urbnum
2-6:1.1              bDeviceProtocol  bNumInterfaces      devpath    manufacturer  removable  version
authorized           bDeviceSubClass  busnum              driver     maxchild      remove
avoid_reset_quirk    bmAttributes     configuration       ep_00      port          speed
bcdDevice            bMaxPacketSize0  descriptors         idProduct  power         subsystem
bConfigurationValue  bMaxPower        dev                 idVendor   product       uevent
mike@E7440:/sys/class/tty$ cat /sys/devices/pci0000:00/0000:00:14.0/usb2/2-6/idVendor
04d8

I’ve found that the error being generated is actually “Permission Denied”, but that error message is swallowed by read_line. However, inkscape runs as user mike and that user is able to cat the file without any issue.

  • This reply was modified 1 year, 9 months ago by Mike K.
  • This reply was modified 1 year, 9 months ago by Mike K.
  • This reply was modified 1 year, 9 months ago by Mike K.