The usbmon feature should be used instead of manually dumping control
URBs. There are a few advantages to using usbmon:
* Can be turned on/off at runtime
* Provides full USB-level traffic
* tcpdump and wireshark support for powerful analysis
* No driver-specific code is required
Signed-off-by: Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>