Alex T

FWIW aside from those line comments I've added it looks ok to me by inspection. Haven't tried to run or explore it in runtime though.

> I'll change some things and come back later just with the dev->gpio_path generic attribute part, the path schema itself (gpio_) I'll handle inside Cubietruck's code, with gpio_init_internal_replace(dev, pin), and...

I see. You can try adding replaces though. Similar to what I did with pre- and post- (though replaces would be harder) in #515 Otherwise you could probably try the...

In addition to those inline comments - what's your idea about `mraa_gpio_get_valfp()`, where you haven't updated the `/gpio%d/value` piece? While it's used only behind `_replace()` checks in this file, I...

I also wonder if sub-platform functionality would be a better fit for this, rather then packing the shield-related code into base expansion board file? Or maybe a copy of this...

@AndreasAZiegler, why exactly would you need that and what doesn't work for you in the current setup?

I guess `CMAKE_CXX_FLAGS` would be the way - I have';t used that much, but some quick googling hasn't revealed anything better than that.

@pylbert, let me bump this up, do you still plan to merge this one?

As you can see in the [README](https://github.com/intel-iot-devkit/mraa/blob/master/README.md), the `add-apt-repository` is used on Ubuntu, but you're running Raspbian and quick googling shows that's not supposed to work there. You can add...

No worries. If you could elaborate on how exactly > my c++ files don't seem to be able to use the library I should be able to advise. Generally there...