title: ioctl() call list for iOS
body: <p>Quickie: where (in which header files) can I find the declarations of the parameters of the ioctl() call on iOS? I've already looked at ioctl.h and the first-level includes it imports, but I'm not sure whether they're the only place to search through. In particluar, I'd be interested in using this function to control some special hardware features (like accessing the accelerometer or the vibrate motor).</p>