~ruther/qmk_firmware

ref: a40cccced29990eef5dac798d522c87807aa5e3a qmk_firmware/keyboards/yosino58/lib/host_led_state_reader.c -rw-r--r-- 389 bytes
a40cccce — Joel Challis Resolve some "Layout should not contain name of keyboard" lint warnings (#21898) 2 years ago 
                                                                                
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#include <stdio.h>

char host_led_state_str[24];

const char *read_host_led_state(void)
{
  led_t led_state = host_keyboard_led_state();
  snprintf(host_led_state_str, sizeof(host_led_state_str), "NL:%s CL:%s SL:%s",
           led_state.num_lock ? "on" : "- ",
           led_state.caps_lock ? "on" : "- ",
           led_state.scroll_lock ? "on" : "- ");

  return host_led_state_str;
}