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    <p>A non-programmer cannot do that. What you can do is writing a kernel extension (an IOKit driver) for the device, that has a matching dictionary matching the <em>real</em> vendor-/product-ID of the device, which causes the system to automatically load the kernel extension when this device is connected and pass a reference to the device object. The driver is now responsible for initializing the device and create all necessary user space information that is necessary for the IOKit framework (the user space library) to communicate with the device. Usually Apple has default IOKit drivers for most USB device classes (that's why you don't need an extra driver for every USB mouse or keyboard for example), but if there is a more specific driver found, then this driver will be used instead. And when creating the user space data, of course the driver may <em>lie</em> about the vendor-/product-ID, causing the user space program to see false values. Since IOKit is written in C++ and heavily depends upon objects and object inheritance, it is not even necessary to write the driver from scratch, but instead it can inherit from Apple's default driver and just override some methods and otherwise rely upon the super implementation. However, writing IOKit kernel drivers is not that easy and even people developing Mac software for years may have no idea how to do that and the IOKit documentation is one of the worst ones Apple is offering.</p> <p>So to answer your question: Is it possible? Yes. Is it fairly easy? No. Can non-programmers do it? Certainly not, unless someone else has written a ready to use extension for them, that they only need to install.</p>
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