ws2812.c

 1// Copyright 2024 QMK
 2// SPDX-License-Identifier: GPL-2.0-or-later
 3
 4#include "ws2812.h"
 5
 6#if defined(WS2812_RGBW)
 7void ws2812_rgb_to_rgbw(ws2812_led_t *led) {
 8    // Determine lowest value in all three colors, put that into
 9    // the white channel and then shift all colors by that amount
10    led->w = MIN(led->r, MIN(led->g, led->b));
11    led->r -= led->w;
12    led->g -= led->w;
13    led->b -= led->w;
14}
15#endif