I have a problem on the T3 Plus with Ubuntu / 4.4.49-s5p6818 I'm trying to disable and reenable a USB hub with echo "2-1.1.1.1" | sudo tee /sys/bus/usb/drivers/usb/unbind ... echo "2-1.1.1.1" | sudo tee /sys/bus/usb/drivers/usb/bind but it always fails with: $ dmesg | tail -n 1 [...