Hiding V-USB inside an Arduino library.

[jamesotron]

Hi there.

I'm working on a device where I would like the user to be able to configure their device by way of a sketch in the Arduino IDE. I have an Arduino library which includes all the usbdrv code. I have managed to clean up all the compile warnings and errors and I have one last remaining error which is bugging my brain out:

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AxeIo/axeio.cpp.o: In function `controllerInit()':
/Users/jnh/Documents/Arduino/libraries/AxeIo/axeio.cpp:568: undefined reference to `usbInit()'

so axeio.h/cpp is my Arduino library, from the sketch's setup() method controllerInit() is called which in turn calls:

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void controllerInit() {
  blinkinatorSetup();

  wdt_enable(WDTO_1S);
  hardwareInit();

  odDebugInit();
  usbInit();

  sei();
}

Interesting that it doesn't complain about odDebugInit, just usbInit. Does anyone have any ideas of where I've gone wrong?

The complete code can be seen here: https://github.com/axeio/thinkinator_fi ... ration/lib

[Daid]

First, you are using an Arduino, with the Arduino library. Which is like putting a 2 stroke engine in a Ferrari.

Secondly, you are mixing C and C++. You'll need to add

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extern "C" {

around the C header files.

[jamesotron]

Thanks. Yes, that's what I wound up doing.