Hello friends! I Am using 3G modem(Huawei E171 connected by OTG cable) on my OPi One for internet, but one problem - modem after few days working freeze. Reboot don't help because not full power off on USB, and after reboot i don't see modem in /dev. Only after physical remove modem and install again it's initialized and work fine.   Question: Can i power off USB from cli?   # uname -a Linux orangepione 3.4.113-sun8i #18 SMP PREEMPT Thu Jun 15 02:16:06 CEST 2017 armv