kiddjacky

could you see the usb device when you do "lsusb" ? Do you have root permission? You can try adding "sudo" before the python command see if that would resolve...

Hi, Did you run https://github.com/kneron/host_lib/blob/master/pkgs/kdp_host_api-1.1.2_Raspbian_-py3-none-any.whl in your Raspberry pi 4? We build this natively in Raspberry pi 4 in Raspian OS, which is the default OS for Raspberry pi 4....