Function gpio_pin_toggle

pub unsafe extern "C" fn gpio_pin_toggle(
    port: *const device,
    pin: u8,
) -> i32

@brief Toggle pin level.

@param port Pointer to the device structure for the driver instance. @param pin Pin number.

@retval 0 If successful. @retval -EIO I/O error when accessing an external GPIO chip. @retval -EWOULDBLOCK if operation would block.