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https://github.com/firewalkwithm3/qmk_firmware.git
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20 lines
580 B
C
20 lines
580 B
C
// Copyright 2022 QMK
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// SPDX-License-Identifier: GPL-2.0-or-later
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// For some reason this bit is undocumented for some AVR parts and not defined in their avr-libc IO headers
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// See https://stackoverflow.com/questions/12350914/how-to-read-atmega-32-signature-row
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#ifndef SIGRD
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# define SIGRD 5
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#endif // SIGRD
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#include <avr/boot.h>
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#include "hardware_id.h"
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__attribute__((weak)) hardware_id_t get_hardware_id(void) {
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hardware_id_t id = {0};
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for (uint8_t i = 0; i < 10; i += 1) {
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((uint8_t*)&id)[i] = boot_signature_byte_get(i + 0x0E);
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}
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return id;
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}
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