Keyboard CapLock simple program

[WormPatch]

can someone show a simple minimalistic program for accessing keyboard's LEDs CapLock/Mayus .etc bitfield in a get & set manner

thx ^-^ !

[WormPatch]

here a minimal code

#include "Adafruit_TinyUSB.h"

uint8_t const desc_hid_report[] = { TUD_HID_REPORT_DESC_KEYBOARD(HID_REPORT_ID(RID_KEYBOARD)) };
Adafruit_USBD_HID usb_hid(desc_hid_report, sizeof(desc_hid_report), 2, false);

void setup() {
  usb_hid.begin();
  while (!USBDevice.mounted()) delay(1);
  do delay(50); while (!usb_hid.ready());
}

void loop() {}

[WormPatch]

ok i realized there is no such keyboard HID that sets leds from byte, but you can read

#include "Adafruit_TinyUSB.h"

uint8_t leds = 0;
uint8_t const desc_hid_report[] = { TUD_HID_REPORT_DESC_KEYBOARD(HID_REPORT_ID(RID_KEYBOARD)) };
Adafruit_USBD_HID usb_hid(desc_hid_report, sizeof(desc_hid_report), 2, false);

void setup() {
  usb_hid.setReportCallback(NULL, hid_report_callback);
  usb_hid.begin();
  while (!USBDevice.mounted()) delay(1);
  do delay(50); while (!usb_hid.ready());
}

void loop() {}

void hid_report_callback(uint8_t report_id, hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize) {
  if (report_type == HID_REPORT_TYPE_OUTPUT) leds = buffer[0];
}

a way to write it is pressing led state keys like bloqnum or capslock

[WormPatch]

if u wanna read specific leds you need bitmasking leds & KEYBOARD_LED_NUMLOCK