USB errors (and hotplug work-around)

Hi,

Another possible USB workaround for 3.8.13 kernel

echo on > /sys/devices/ocp.3/47400000.usb/power/control

then I can unplug and replug USB devices any time without problems.

To be it works many times, but once upon a time it will refuse to work and all call to /sys/devices control will take long time before timeout. It happens quite randomly and I couldn’t capture a pattern when it is going wrong.

Some news about stable fix on hotplug in 3.8.13?