post_config.h

 1#if defined(USE_I2C)
 2// When using I2C, using rgblight implicitly involves split support.
 3#    if defined(RGBLIGHT_ENABLE) && !defined(RGBLIGHT_SPLIT)
 4#        define RGBLIGHT_SPLIT
 5#    endif
 6
 7#    ifndef F_SCL
 8#        define F_SCL 100000UL // SCL frequency
 9#    endif
10#endif