(in hex)
device.write(arr)The first byte of arr is the Report ID (value 2).
If len(arr) > 9, every 10th, 20th, etc., byte is also a Report ID (2) and will be ignored.
This means that for the first nine elements of arr, there are eight data bytes. Starting from the 10th byte, each segment consists of one Report ID followed by nine data bytes.
The simplest approach is to always use an array of size 9, as the firmware is designed to handle this format.
These results were tested on macOS; behavior on Linux may differ slightly but is generally the same.
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01 XX XX XX XX XX… Set Name
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02 Clear BadUSB Script
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03 XX XX Start writing script + script length + CRC32 + ...
- FF XX delay(20ms per unit)
- FE XX Modifier
- FD finish script
- other: keycode
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04 XX XX XX XX YY YY YY YY ZZ
- XX write address
- YY content
- ZZ type, bytes, half word, or word
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05 XX XX XX XX ZZ
- XX read address
- ZZ type, bytes, half word, or word
USB return
FF action done