#!/bin/sh DEVPATH=/sys/$1 USB_ID= [ -d ${DEVPATH} ] || exit 1 while [ ! "${USB_ID}" ]; do if [ -f ${DEVPATH}/avoid_reset_quirk ]; then USB_ID=$(basename ${DEVPATH}) break fi DEVPATH=$(dirname ${DEVPATH}) done # Avoid USB resets echo "auto" > /sys/bus/usb/devices/${USB_ID}/power/control echo "3000" > /sys/bus/usb/devices/${USB_ID}/power/autosuspend_delay_ms echo "enabled" > /sys/bus/usb/devices/${USB_ID}/power/wakeup echo "1" > /sys/bus/usb/devices/${USB_ID}/avoid_reset_quirk echo "0" > /sys/bus/usb/devices/${USB_ID}/power/persist