I don't understand, what exactly do you mean by "virtual directory"?
The code I gave simply creates a regular directory in the root of the filesystem (which cannot be seen from the document browser).

What I want is to have a directory at the root of the file system that is not there, the os just thinks it is there and can use it as if it where not there, so when it reads and writes to that location a program on the calculator can then interpret it and do things based on the io that is being preformed. In the end I hope to have removable storage, as I have yet to see this on the nspire.

So, I am a programmer/modder/gamer, for the most part if it uses electricity I want to take it apart, reprogram it, mod it, etc. I hope to be a good thing when it comes to nspire cx, as I got mine in August, I already have many ideas for it.

I would like to create a virtual directory in the root of the file explored on the cx, how would I go about doing this in c?