No USB bus can be captured thanks to libpcap. Check your name filter and make sure relevent permissi

问题：执行usbtop命令的时候提示No USB bus can be captured thanks to libpcap. Check your name filter and make sure relevent permissions are set !

解决：sudo modprobe usbmon   使用这条命令加载 usbmon 模块

然后重新执行sudo usbtop命令即可