On 9/17/18 12:25 PM, shreyank amartya wrote: > amd at amd-sham:~ % whoami > amd ^^ this is not root :-) > > amd at amd-sham:~ % usbdump -i usbus0 -s 255 -f 5 > usbdump: Could not open BPF device: Permission denied Expected, unless you chown the packet filtering devices. --HPS