mh
/
qmk_firmware
mirror of https://github.com/qmk/qmk_firmware/


								// Copyright 2022 QMK

								// SPDX-License-Identifier: GPL-2.0-or-later


								// For some reason this bit is undocumented for some AVR parts and not defined in their avr-libc IO headers

								// See https://stackoverflow.com/questions/12350914/how-to-read-atmega-32-signature-row

								#ifndef SIGRD

								#    define SIGRD 5

								#endif // SIGRD


								#include <avr/boot.h>

								#include "hardware_id.h"


								hardware_id_t get_hardware_id(void) {

								    hardware_id_t id = {0};

								    for (uint8_t i = 0; i < 10; i += 1) {

								        ((uint8_t*)&id)[i] = boot_signature_byte_get(i + 0x0E);

								    }

								    return id;

								}