Hello,
I'm not sure but it seems to be uint8_t for TMK/fn_actions (cf. https://github.com/tmk/tmk_keyboard/blob/master/README.md ).
Regards,
Damien
| Maintainer |hasu (@tmk) |Jack Humbert et al. |
| Build path customization | `TMK_DIR = ...` | `include .../Makefile` |
| `keymaps` array data | 3D array of `uint8_t` holding **keycode** | 3D array of `uint16_t` holding **keycode** |
-| `fn_actions` array data | 1D array of `uint16_t` holding **action code** | 1D array of `uint16_t` holding **action code** |
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+| `fn_actions` array data | 1D array of `uint8_t` holding **action code** | 1D array of `uint16_t` holding **action code** |