https://bugzilla.kernel.org/show_bug.cgi?id=216282 --- Comment #17 from audioprof2001@xxxxxxxxx --- im using another Linux, same usb problem, but in this linux $ sudo mount -t debugfs debugfs /sys/kernel/debug is mounted in /syskernel/debug ok i can see inside /sys/kernel/debug with sudo $ sudo modprobe usbmon works $ sudo cat /sys/kernel/debug/usb/usbmon/2u >mon.out creates a directory in /sys/kernel/debug/usb called /usbmon but nothing happens all files inside are 0kb. -- You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.