DCMD_PTPD_GET_PDELAY

Get the pdelay interval

Synopsis:

#include <dcmd_ptpd.h>

#define DCMD_PTPD_GET_PDELAY_INTERVAL   __DIOF(_DCMD_NET, 17, MyPDelayIntervalInternal )

Arguments to devctl():

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

Description:

(QNX Neutrino 7.0 or later) This command gets the mean time interval between successive PDELAY_REQ messages in the Precision Time Protocol.

Note: In order to use this command, you must specify the -K option when you start ptpd-avb. Note that ptpd doesn't support this command.

Input:

None.

Output:

A MyPDelayIntervalInternal that ptpd sets to the base-2 logarithm of the current interval, in seconds:

typedef uint32_t MyPDelayIntervalInternal;

Example:

MyPDelayIntervalInternal my_pdelay_interval;

if(devctl(fd, DCMD_PTPD_GET_PDELAY_INTERVAL, &my_pdelay_interval,
          sizeof my_pdelay_interval, NULL) != EOK)
{
   /* Error */
}

DCMD_PTPD_GET_PDELAY_INTERVAL