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Minor documentation improvements. 

Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
master
Miroslav Lichvar 2013-06-18 15:52:31 +02:00 committed by Richard Cochran
parent f657e47c26
commit b796d90e80
2 changed files with 9 additions and 6 deletions
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8
phc2sys.8
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@ -40,9 +40,9 @@ program.
Two synchronization modes are supported, one uses a pulse per second (PPS)
signal provided by the source clock and the other mode reads time from the
source clock directly. The PPS mode is usually preferred, because reading the
PHC is slow and introduces an unknown error in the readings, but not all PHCs
provide the PPS signal.
source clock directly. Some clocks can be used in both modes, the mode which
will synchronize the slave clock with better accuracy depends on hardware and
driver implementation.
.SH OPTIONS
.TP
@ -58,7 +58,7 @@ option should be used too. This option can be used only with the system clock as
the slave clock.
.TP
.BI \-s " device"
Specify the master clock by device (e.g. dev/ptp0) or interface (e.g. eth0) or
Specify the master clock by device (e.g. /dev/ptp0) or interface (e.g. eth0) or
by name (e.g. CLOCK_REALTIME for the system clock). When this option is used
together with the
.B \-d

7
ptp4l.8
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@ -32,10 +32,13 @@ a peer delay request is received.
.TP
.B \-E
Select the delay request-response (E2E) mechanism. This is the default
mechanism.
mechanism. All clocks on single PTP communication path must use the same
mechanism. A warning will be printed when a peer delay request is received on
port using the E2E mechanism.
.TP
.B \-P
Select the peer delay (P2P) mechanism.
Select the peer delay (P2P) mechanism. A warning will be printed when a delay
request is received on port using the P2P mechanism.
.TP
.B \-2
Select the IEEE 802.3 network transport.