Unix Command Line ConventionThe gp CommandDisplaying GPIO SettingsConfiguring GPIO as InputConfiguring GPIO as OutputConfiguring GPIO as Alternate FunctionChart of Alternate FunctionsConfiguring GPIO Pullup/PulldownSetting GPIO OutputReading GPIO InputReturning GPIO Value to ShellReading 32 GPIOsRead GPIO Alternate FunctionBlinking Output GPIOMonitoring GPIO InputConfiguring GPIO Slew RateConfiguring GPIO HysteresisConfiguring GPIO Drive LevelSummaryBibliography