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19 lines
367 B
C
19 lines
367 B
C
/*
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* Copyright (C) 2020 Richard Hughes <richard@hughsie.com>
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*
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* SPDX-License-Identifier: LGPL-2.1+
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*/
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#include "config.h"
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#include "fu-elantp-common.h"
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guint16
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fu_elantp_calc_checksum(const guint8 *data, gsize length)
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{
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guint16 checksum = 0;
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for (gsize i = 0; i < length; i += 2)
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checksum += ((guint16)(data[i + 1]) << 8) | (data[i]);
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return checksum;
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}
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