7486e6e4e1
Many GPS radios provide both a 1-PPS and time of day information via NMEA sentences. This patch introduces a ts2phc master that decodes the "recommended minimum data" sentence, RMC, which provides UTC time and a validity flag. Together with the file based leap second table, this sentence provides adequate time of day for determining the time of the PPS edge. Signed-off-by: Richard Cochran <richardcochran@gmail.com>
20 lines
586 B
C
20 lines
586 B
C
/**
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* @file serial.h
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* @note Copyright (C) 2020 Richard Cochran <richardcochran@gmail.com>
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* @note SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef HAVE_SERIAL_H
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#define HAVE_SERIAL_H
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/**
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* Opens a serial port device.
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* @param name Serial port device to open.
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* @param bps Baud rate in bits per second.
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* @param icrnl Pass 1 to map CR to NL on input, zero otherwise.
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* @param hwfc Pass 1 to enable hardware flow control, zero otherwise.
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* @return An open file descriptor on success, -1 otherwise.
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*/
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int serial_open(const char *name, int bps, int icrnl, int hwfc);
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#endif
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