Hi everyone! This is my first post to this list :)
I've been working with HID Manager (directly; i.e. not using HID
Utilities) for the past few weeks, and everything was working perfectly
- until yesterday. I discovered the composite devices (such as the
Apple Extended Keyboard on my brother's iMac) show up as 2 separate
io_object_t instances WITH THE SAME LOCATION ID. This is a problem for
me because my system was based on the assumption that LocationIDs are a
unique way of identifying a device. Obviously, I was mistaken.
What is the best way to uniquely identify a human interface device? I'm
guessing I should combine the LocationID with some other piece of
information. I hear that not all devices provide serial numbers, so
what else can I use? Is there a standard way to do this?
I liked the idea of being able to use LocationIDs because I could store
the LocationID of the user's preferred device in their preferences.
Any ideas?
Thanks in advance :)
Andrew
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