Captured on Razer Blade 16 2023
Use WireShark to capture USB packets.
To filter razer only packets I used filter frame.len == 126.
Also disable all keyboard lightning, it generates a lot of traffic.
An example of single packet: 144 50.302891 host 1.1.0 USBHID 126 001c000000040d0201010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000b00 SET_REPORT Request
The sniffing process begins with start capture in WireShark, then do actions in Razer Synapse and annotate which action corresponds to which USB packet.
I dumped some examples
- wireshark_dump_raw.csv - example data capture from wireshark
- annotations.csv - annotations of actions
- extract_data_from_capture.py - script filters out the data and keeps only annotated one
A lot of time is saved thanks to protocol decoding from openrazer.
After running the script, we get the table, that says which command correspods to which action. As you can see, commands have variable number of arguments.
| action | cmd | argc | arg0 | arg1 | arg2 | arg3 |
|---|---|---|---|---|---|---|
| set balanced auto fan mode | 0d02 | 4 | 01 | 01 | 00 | 00 |
| 0d02 | 4 | 01 | 02 | 00 | 00 | |
| set balanced manual fan mode 3500 rpm | 0d02 | 4 | 01 | 01 | 00 | 01 |
| 0d02 | 4 | 01 | 02 | 00 | 01 | |
| 0d01 | 3 | 01 | 01 | 23 | ||
| 0d01 | 3 | 01 | 02 | 23 | ||
| set balanced manual fan mode 2000 rpm | 0d01 | 3 | 01 | 01 | 14 | |
| 0d01 | 3 | 01 | 02 | 14 | ||
| set balanced manual fan mode 5000 rpm | 0d01 | 3 | 01 | 01 | 32 | |
| 0d01 | 3 | 01 | 02 | 32 | ||
| set balanced auto fan mode | 0d02 | 4 | 01 | 01 | 00 | 00 |
| 0d02 | 4 | 01 | 02 | 00 | 00 | |
| set silent mode | 0d02 | 4 | 01 | 01 | 05 | 00 |
| 0d02 | 4 | 01 | 02 | 05 | 00 | |
| set custom mode, cpu boost, gpu high | 0d02 | 4 | 01 | 01 | 04 | 00 |
| 0d02 | 4 | 01 | 02 | 04 | 00 | |
| 0d07 | 3 | 01 | 01 | 03 | ||
| 0d07 | 3 | 01 | 02 | 02 | ||
| custom mode, cpu high, gpu high | 0d07 | 3 | 01 | 01 | 02 | |
| custom mode, cpu middle, gpu high | 0d07 | 3 | 01 | 01 | 01 | |
| custom mode, cpu low, gpu high | 0d07 | 3 | 01 | 01 | 00 | |
| custom mode, cpu low, gpu middle | 0d07 | 3 | 01 | 02 | 01 | |
| custom mode, cpu low, gpu low | 0d07 | 3 | 01 | 02 | 00 | |
| custom mode, cpu low, gpu high | 0d07 | 3 | 01 | 02 | 02 | |
| custom mode, cpu boost, gpu high | 0d07 | 3 | 01 | 01 | 03 | |
| enable max fan speed | 070f | 1 | 02 | |||
| disable max fan speed | 070f | 1 | 00 | |||
| custom mode, cpu overclock, gpu high | 0d07 | 3 | 01 | 01 | 04 | |
| custom mode, cpu boost, gpu high | 0d07 | 3 | 01 | 01 | 03 | |
| battery health, 80% | 0712 | 1 | d0 | |||
| disable battery health | 0712 | 1 | 50 | |||
| enable battery health | 0712 | 1 | d0 | |||
| decrease keyboard light | 0303 | 3 | 01 | 05 | 00 | |
| 0303 | 3 | 01 | 05 | 00 | ||
| increase keyboard light | 0303 | 3 | 01 | 05 | 0f | |
| set lid logo static | 0302 | 3 | 00 | 04 | 00 | |
| 0300 | 3 | 00 | 04 | 01 | ||
| set lid logo breathing | 0302 | 3 | 00 | 04 | 02 | |
| 0300 | 3 | 00 | 04 | 01 | ||
| set lid logo off | 0302 | 3 | 00 | 04 | 00 | |
| 0300 | 3 | 00 | 04 | 00 |