Package: usbtop Version: 0.2-1 Severity: wishlist Hi! Upon starting, usbtop throws 18 lines of error messages: Error while capturing traffic from usbmon1: usbmon1: Can't open USB bus file /sys/kernel/debug/usbmon/1t: No such file or directory Error while capturing traffic from usbmon2: usbmon2: Can't open USB bus file /sys/kernel/debug/usbmon/2t: No such file or directory Error while capturing traffic from usbmon3: usbmon3: Can't open USB bus file /sys/kernel/debug/usbmon/3t: No such file or directory Error while capturing traffic from usbmon4: usbmon4: Can't open USB bus file /sys/kernel/debug/usbmon/4t: No such file or directory Error while capturing traffic from usbmon5: usbmon5: Can't open USB bus file /sys/kernel/debug/usbmon/5t: No such file or directory Error while capturing traffic from usbmon6: usbmon6: Can't open USB bus file /sys/kernel/debug/usbmon/6t: No such file or directory Error while capturing traffic from usbmon7: usbmon7: Can't open USB bus file /sys/kernel/debug/usbmon/7t: No such file or directory FATAL ERROR: couldn't open any USB buses with pcap. Did you load the usbmon module (sudo modprobe usbmon)? You might also need to run this software as root. It'd be nice if they could be coalesced into one, as they have a single well-known cause. The current spam is so long that an inattentive reader might miss the modprobe suggestion (as I did). But, as usbtop already needs root, why not just load the module yourself? Meow!