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Here's my problem: mint power # uname -a Linux mint 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:11:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux mint power # pwd /sys/bus/usb/devices/usb5/5-2/power mint power # cat autosuspend autosuspend_delay_ms control level persist 1 1000 auto auto 1 mint power # echo on >level mint power # echo off >level bash: echo: write error: Invalid argument mint power # echo suspend >level bash: echo: write error: Invalid argument mint power #

Why can't I power-off the USB device? Clearly the hardware has the capability!

Steve175
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    What are you expecting to get by "powering down" the device? Most USB hosts can't actually cut power to ports, if that's what you mean… –  Jan 20 '15 at 21:50

1 Answers1

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off and suspend are not valid settings, and the level file is deprecated.

Try the documentation:

Ben Voigt
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