I am trying to power off and power on usb port in Ubuntu 12.04 without success.
I tried the steps listed below:
echo "0" > "/sys/bus/usb/devices/$port/power/autosuspend"
echo "auto" > "/sys/bus/usb/devices/$port/power/level"
and
echo "auto" > "/sys/bus/usb/devices/2-1.3/power/control"
echo "0" > "/sys/bus/usb/devices/2-1.3/power/autosuspend_delay_ms"
and
echo suspend | sudo tee /sys/bus/usb/devices/XXXX/power/level