On Thu, 25 Apr 2013, Sedat Dilek wrote: > [ Run logging on USB-bus #1 ] > > # cat /sys/kernel/debug/usb/usbmon/1u > /tmp/usbmon-1u.txt <--- USB-bus #01 > > [ Do suspend plus resume ] > > ... > > [ Check /tmp/usbmon-1u.txt file ] > > ... > > File attached! That also looks normal. Did you have CONFIG_USB_DEBUG enabled during this test? If you did, you could try turning it back off to see if the original problem returns while still doing a usbmon trace. Alan Stern