One of the really neat things about USB devices is that they are almost entirely self-describing, which makes it easy to let Ruby just "do the right thing" when communicating with them. This presentation will give a brief introduction to the USB spec and then a discussion of the difficulties of integrating Ruby with this spec (and the libUsb library that wrapped it). Then there will be a tutorial about how to use RubyUSB to discover the interface of a random USB device and how to write short ...
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