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[Docs] Squeeze AVR with simplified magic config functions #21477

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Jul 9, 2023
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15 changes: 15 additions & 0 deletions docs/squeezing_avr.md
Original file line number Diff line number Diff line change
Expand Up @@ -88,6 +88,21 @@ Or if you're not using layers at all, you can outright remove the functionality
#define NO_ACTION_LAYER
```

## Magic keycodes

There are two `__attribute__ ((weak))` placeholder functions available to customize magic keycodes. If you are not using that feature to swap keycodes, such as backslash with backspace, add the following to your `keymap.c` or user space code:
```c
uint16_t keycode_config(uint16_t keycode) {
return keycode;
}
```
Likewise, if you are not using magic keycodes to swap modifiers, such as Control with GUI, add the following to your `keymap.c` or user space code:
```c
uint8_t mod_config(uint8_t mod) {
return mod;
}
```
Both of them will overwrite the placeholder functions with a simple return statement to reduce firmware size.

## OLED tweaks

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