DCMD_PTPD_DELAYSM

Get the slave-to-master delay

Synopsis:

#include <dcmd_ptpd.h>

#define DCMD_PTPD_DELAYSM   __DIOF(_DCMD_NET, 11, MyTimeInternal )

Argument	Value
`filedes`	A file descriptor that you obtained by opening /dev/ptpd
`dcmd`	DCMD_PTPD_DELAYSM
`dev_data_ptr`	A pointer to a MyTimeInternal structure
`n_bytes`	`sizeof(MyTimeInternal)`
`dev_info_ptr`	NULL

The DCMD_PTPD_DELAYSM command gets the network latency in the direction from the slave to the master for the Precision Time Protocol.

Note: In order to use this command, you must specify the -K option when you start ptpd or ptpd-avb.

None

A filled-in MyTimeInternal structure, which is defined in <dcmd_ptpd.h> as follows:

typedef struct {
        uint32_t seconds;
        uint32_t nanoseconds;
} MyTimeInternal;