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https://github.com/mofeng-git/One-KVM.git
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35 lines
1.8 KiB
Python
35 lines
1.8 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main PiKVM daemon. #
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# #
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# Copyright (C) 2018-2024 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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# =====
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def make_crc16(data: bytes) -> int:
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crc = 0xFFFF
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for byte in data:
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crc = crc ^ byte
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for _ in range(8):
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if crc & 0x0001 == 0:
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crc = crc >> 1
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else:
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crc = crc >> 1
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crc = crc ^ 0xA001
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return crc
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