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The Corsair HID protocol

This repo is structured into folders by bytes, to facilitate fast lookup.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

What we know so far

All packets have a 64 byte payload, padded with zeroes. The first four bytes of the command are echoed in the response packet. The protocol is poll based - the mouse may reply to an 0e command with an arbitrary amount of 01 events terminated with an 03 event before replying. The protocol uses USB URB interrupts - URB control packets work on most devices, but not on the K95 Platinum.

  • 01 - HID event from device to host.
  • 03 - Corsair-specific event from device to host.
  • 07 - Write command from host to device - does not get a reply from the board.
  • 0e - Read command from host to device - gets a reply from the board.
  • 7f - Multiple packet stream from host to device - used as a payload in firmware update and colour update