Radxa ROCK 4 Series
| System on Chip |
Rockchip RK3399 variants |
| Number GPIO |
27 |
| Status |
Fully supported |
Following ROCK 4 models are supported:
| Model |
SoC variants |
| ROCK 4A/B/C |
Rockchip RK3399 |
| ROCK 4A+/B+ |
Rockchip OP1 |
| ROCK 4 SE |
Rockchip RK3399T |
| ROCK 4C+ |
Rockchip RK3399T |
Supported Features
| Read / Write |
 |
| Interrupt |
|
GPIO Mapping
| 5v |
5v |
0v |
15 |
16 |
1 |
0v |
4 |
5 |
0v |
6 |
10 |
3.3v |
31 |
0v |
26* |
0v |
27 |
28 |
29 |
| 3.3v |
8 |
9 |
7 |
0v |
0 |
2 |
3 |
3.3v |
12 |
13 |
14 |
0v |
30 |
21 |
22 |
23 |
24 |
25 |
0v |
Note: to use GPIO pin 26, the status LED has to be disabled (i.e. LED’s trigger set to none).
Otherwise, the operation will have no effect and no error will be returned.
This workaround is required on vendor 4.4 kernel.