This includes: how many packets the device supports, how large are the packets, and the purpose of each byte and bit in the packet. The HID descriptor is a hard coded array of bytes that describe the device’s data packets. Devices define their data packets and then present a “HID descriptor” to the host. The HID protocol makes implementation of devices very simple. It is an absolute headache to write the HID report descriptors manually (converting between binary and hex and looking up the meanings of the numbers) so this tool is essential. You’ll want to play with it as you go through this tutorial. Second, go get the HID descriptor tool from the same page. Thanks for visiting! If you appreciate my content, please consider making a donation to a charity.
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