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DNS-323 GPIO Mapping
The following information was deduced by reading the D-Link supplied DNS323 2.6.12.6 kernel source together with empirical reverse engineering.
| GPIO Pin # | GPIO Mask | Direction | Purpose |
|---|---|---|---|
| 0 | 0×0001 | Input | unknown |
| 1 | 0×0002 | Output | right amber LED (= sata ch0 LED) (low-active) |
| 2 | 0×0004 | Output | left amber LED (= sata ch1 LED) (low-active) |
| 3 | 0×0008 | Output | unknown |
| 4 | 0×0010 | Output | power button LED (low-active, together with pin #5) |
| 5 | 0×0020 | Output | power button LED (low-active, together with pin #4) |
| 6 | 0×0040 | Input | unknown |
| 7 | 0×0080 | Input | unknown |
| 8 | 0×0100 | Output | triggers power off (high-active) |
| 9 | 0×0200 | Input | power button switch (low-active) |
| 10 | 0×0400 | Input | reset button switch (low-active) |
| 11 | 0×0800 | Output | unknown |
| 12 | 0×1000 | Output | unknown |
| 13 | 0×2000 | Output | unknown |
| 14 | 0×4000 | Output | unknown - maybe sata ch0 blue LED |
| 15 | 0×8000 | Output | unknown - maybe sata ch1 blue LED |
| 16-31 | unknown - nothing expected | ||
