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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"


 echo "auto" > "/sys/bus/usb/devices/2-1.3/power/control"
 echo "0" > "/sys/bus/usb/devices/2-1.3/power/autosuspend_delay_ms"


echo suspend | sudo tee /sys/bus/usb/devices/XXXX/power/level

Please help.

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Same as askubuntu.com/questions/342061/… –  Emin Mastizada Sep 25 '13 at 23:10
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