#!/bin/bash import gpio ENABLE_GPIO = 19 SELECT_GPIO = 21 def init(): gpio.export(SELECT_GPIO) gpio.export(ENABLE_GPIO) gpio.set_dir(SELECT_GPIO, "out") gpio.set_dir(ENABLE_GPIO, "out") gpio.set(SELECT_GPIO, 0) gpio.set(ENABLE_GPIO, 1) def uninit(): gpio.unexport(SELECT_GPIO) gpio.unexport(ENABLE_GPIO) def enable(): gpio.set(SELECT_GPIO, 1) # VBUS on gpio.set(ENABLE_GPIO, 0) # D+/D- connect def disable(): gpio.set(ENABLE_GPIO, 1) # D+/D- disconnect gpio.set(SELECT_GPIO, 0) # VBUS off