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User input signals are not defined within the USB specification.

If you had for example a USB keyboard running it would most likely send it's characters according to the ASCII table. This is how ever up to the manufacturer and if you can read the .dll file perhaps you will find out how it is done in your case.

The arrow keys in Hex according to the ASCII table;

Right 1C

Left 1D

Up 1E

Down 1F

Convert to binary, and use the USB protocol to transmit. In real life you will most probably have to also add stuff like headers and check-sums...

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15y ago

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