Logitech keyboards use a USB HID interface. Some packets are 20 bytes, others are 64 bytes. Unless a packet is denoted as a 64 byte packet below, assume it is a 20 byte packet. Any bytes not shown are zero.
Some of the information for this wiki page was gathered from: https://github.com/MatMoul/g810-led and other information was reverse engineered from my own Logitech G810.
Direct mode keymap: Logitech_G810_Keymap.ods
Commit
Logitech G213 and G413 do not need a commit packet.
Logitech G410, G512, G513, G610, G810, GPro
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x0C |
0x03 |
0x5A |
Logitech G815
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x10 |
0x03 |
0x7F |
Logitech G910
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x0F |
0x03 |
0x5D |
Set Startup Mode
Logitech G213, G410, G610, G810, GPro
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x0D |
0x03 |
0x5A |
0x04 |
0x00 |
0x05 |
0x01 |
0x06 |
Startup Mode |
Logitech G910
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x10 |
0x03 |
0x5E |
0x04 |
0x00 |
0x05 |
0x01 |
0x06 |
Startup Mode |
Set Onboard Mode
Logitech G810
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x0D |
0x03 |
0x3D |
0x04 |
Zone |
0x05 |
Mode |
0x06 |
Red |
0x07 |
Green |
0x08 |
Blue |
0x09 |
|
0x0A |
|
0x0B |
Speed |
0x0C |
Speed |
0x0D |
0x64 |
Zones
Value |
Description |
0x00 |
Keyboard |
0x01 |
Logo |
Modes
Value |
Description |
0x00 |
Off |
0x01 |
Static |
0x02 |
Breathing |
0x03 |
Cycle |
0x04 |
Wave |
Wave Direction
Value |
Direction |
0x01 |
Horizontal |
0x02 |
Vertical |
0x03 |
Center Out |
0x06 |
Reverse Horizontal |
0x08 |
Center In |
Logitech G815
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x11 |
0x03 |
0x1A |
0x04 |
Onboard Mode |
Set Key Color
Logitech G810
64-byte packet
Byte Index |
Value |
0x00 |
0x12 |
0x01 |
0xFF |
0x02 |
0x0C |
0x03 |
0x3D |
0x04 |
0x00 |
0x05 |
0x01 |
0x06 |
0x00 |
0x07 |
0x0C |
0x08 |
Key Index 1 |
0x09 |
Red 1 |
0x0A |
Green 1 |
0x0B |
Blue 1 |
0x0C |
Key Index 2 |
0x0D |
Red 2 |
0x0E |
Green 2 |
0x0F |
Blue 2 |
... |
Up to 12 [Key Index, Red, Green, Blue] sets per packet |
Logitech G815
Byte Index |
Value |
0x00 |
0x11 |
0x01 |
0xFF |
0x02 |
0x10 |
0x03 |
0x6C |
0x04 |
Red |
0x05 |
Green |
0x06 |
Blue |
0x07+ |
Key Index (up to 13 keys can be specified per packet) |