Function mraa_sys::mraa_gpio_read_dir

pub unsafe extern "C" fn mraa_gpio_read_dir(
    dev: mraa_gpio_context, 
    dir: *mut mraa_gpio_dir_t
) -> mraa_result_t

Read Gpio(s) direction

@param dev The Gpio context @param dir The address where to store the Gpio(s) direction @return Result of operation