GPIO crash

[Tristan Linnell]

Hi guys,


I am adding a simple PinListener to a GPIO pin on a RaspberryPi board and
the latest DeviceIO (Revision 12), cross-compiled from source.


I am seeing a NullPointerException being thrown from the DeviceIO
EventQueue.


The same problem exists when running on both Arch Linux and Raspbian.


I am using the same pin configuration as GPIOInputSample.java:


GPIOPinConfig pinConfig = new GPIOPinConfig(0,

                    22,

                    GPIOPinConfig.DIR_INPUT_ONLY,

                    GPIOPinConfig.DEFAULT,

                    GPIOPinConfig.TRIGGER_RISING_EDGE |
GPIOPinConfig.TRIGGER_FALLING_EDGE,

                    true);


GpioPin toRead = (GPIOPin)DeviceManager.open(GPIOPin.class, pinConfig);


toRead.setInputListener((PinEvent e) -> System.out.println(e.getValue()));



I have physically attached the pin to a rotary encoder. After around 50 or
so events which are correctly logged to the console as expected, I receive
the following NullPointerException:


Exception in thread "Thread-1"

true

java.lang.NullPointerException

at com.oracle.dio.impl.EventQueue$NativeMethodThread.run(EventQueue.java:91)

at java.lang.Thread.run(Thread.java:744)



Thank You,

Tristan Linnell