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qmk_firmware/keyboards/comet46/lib/host_led_state_reader.c

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#include <stdio.h>
#include "comet46.h"
char host_led_state_str[22];
const char *read_host_led_state(void) {
uint8_t leds = host_keyboard_leds();
snprintf(host_led_state_str, sizeof(host_led_state_str), "Lock: %s%s%s",
(leds & (1 << USB_LED_CAPS_LOCK)) ? "CAPL " : "",
(leds & (1 << USB_LED_SCROLL_LOCK)) ? "SCRL " : "",
(leds & (1 << USB_LED_NUM_LOCK)) ? "NUML" : "");
return host_led_state_str;
}