24 lines
435 B
C
24 lines
435 B
C
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/*
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* Copyright (c) 2021 Sun Amar
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <em_system.h>
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#include <drivers/hwinfo.h>
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#include <string.h>
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#include <sys/byteorder.h>
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ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
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{
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uint64_t unique_id = sys_cpu_to_be64(SYSTEM_GetUnique());
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if (length > sizeof(unique_id)) {
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length = sizeof(unique_id);
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}
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memcpy(buffer, &unique_id, length);
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return length;
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}
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