Fix the man page regarding the '-p' option.
The -p option for ptp4l, which specifies the PHC device, was added before the ethtool get_ts_info ioctl had been invented. Today it does not "force" the given device as the man page says. Instead this is a legacy option only useful when running on older kernels. Signed-off-by: Richard Cochran <richardcochran@gmail.com>master
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.TH PTP4l 8 "December 2014" "linuxptp"
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.TH PTP4l 8 "July 2016" "linuxptp"
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.SH NAME
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ptp4l - PTP Boundary/Ordinary Clock
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@ -70,8 +70,10 @@ Specify a PTP port, it may be used multiple times. At least one port must be
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specified by this option or in the configuration file.
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.TP
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.BI \-p " phc-device"
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With hardware time stamping, force which PHC device (e.g. /dev/ptp0) should be
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used.
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(This option is deprecated.)
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Before Linux kernel v3.5 there was no way to discover the PHC device
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associated with a network interface. This option specifies the PHC
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device (e.g. /dev/ptp0) to be used when running on legacy kernels.
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.TP
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.B \-s
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Enable the slaveOnly mode.
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