NotImplementedError: Operation not supported or unimplemented on this platform

Hi.

I’m in an internship and I want to read the USB port to see the type of data transiting. Ideally, I want to be able to both send and receive USB packets. I’m trying to read on a port with the .read() method but I have this error popping up :

NotImplementedError: Operation not supported or unimplemented on this platform

I don’t understand what could be the problem. Everything is up to date, I use the latest version of Python and Spyder, on Windows 10.

The code is as follow :

import usb.core
import usb.util

# find our device
dev = usb.core.find(idVendor = 0x152D, idProduct = 0x0576)
# was it found?
if dev is None:
    raise ValueError('Device not found')
else:
    print(dev)
    dev.read(0x81,100)

[TitouanLabourdette]

You were right, the port used were indeed not the same depending of the type of devices connected. I couldn’t find any COM port because I used a hard drive. With another peripheral I finally got an open COM port.

Thank you very much for your help.

[jonasmalacofilho]

I still think the most likely cause is that the installed driver isn’t compatible with libusb.

Most likely, the driver that is installed for that device isn’t compatible with libusb. Their FAQ has more information on using it with Windows.