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@@ -78,7 +78,7 @@ class SocketSerial extends SerialPort:
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fcs = (fcs >> 1) ^ P_DIV if fcs & 1 else fcs >> 1
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return (~fcs) & 0xffff
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func try_open(parsing_proc: Callable):
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func try_open(parsing_proc: Callable) -> Error:
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if is_open():
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return Error.OK
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var rc: = open(port)
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