https://bugzilla.kernel.org/show_bug.cgi?id=216282 --- Comment #14 from audioprof2001@xxxxxxxxx --- $ cat /sys/kernel/debug/usb/usbmon/2u >mon.out cat: /sys/kernel/debug/usb/usbmon/2u: Permission denied $ sudo cat /sys/kernel/debug/usb/usbmon/2u >mon.out cat: /sys/kernel/debug/usb/usbmon/2u: No such file or directory -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.