When xmosdfu is invoked with a parameter that causes access of the USB device (e.g. --upload) then this causes an error on Linux:
Could not find/open device
The solution is to invoke xmosdfu as super user with sudo.
E.g.
sudo ./xmosdfu <device PID> --upload extracted.bin
This resolves the issue on Ubuntu and Raspbian.
xmosdfu causes error "Could not find/open device" on Linux
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