Method get_chip

rpi/src/gpio.rs:49–54

Gets access to the default GPIO chip and lazily opens it if not yet open.

(&mut self)

impl RppalPins {
    /// Gets access to the default GPIO chip and lazily opens it if not yet open.
    fn get_chip(&mut self) -> io::Result<&mut gpio::Gpio> {
        if self.chip.is_none() {
            self.chip = Some(gpio::Gpio::new().map_err(gpio_error_to_io_error)?);
        }
        Ok(self.chip.as_mut().unwrap())
    }
}

impl Pins for RppalPins {