DCMD_PTPD_* Parent topic: DCMD_PTPD_*

DCMD_PTPD_STATUS

Get the error status for the Precision Time Protocol

Synopsis:

#include <dcmd_ptpd.h>

#define DCMD_PTPD_STATUS   __DIOF(_DCMD_NET, 12, MyStatusInternal )

Arguments to devctl():

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

Description:

(QNX Neutrino 7.0 or later) This command gets the status of 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 filled-in MyStatusInternal, which is defined in <dcmd_ptpd.h> as follows: 

typedef uint32_t   MyStatusInternal;

The status is one of the following:

PTPD_STATUS_NO_ERROR
No error.
PTPD_STATUS_LINK_DOWN
The link is down.
PTPD_STATUS_GRANDMASTER_FAILURE
The root timing reference (the clock that all other clocks sychronize themselves to) failed.

Example:

See DCMD_PTPD_DELAYMS

See also:

DCMD_PTPD_DELAYMS, DCMD_PTPD_DELAYSM, DCMD_PTPD_GET_PDELAY_INTERVAL, DCMD_PTPD_GET_TAI_UTC_OFFSET, DCMD_PTPD_GET_TIME, DCMD_PTPD_INFO, DCMD_PTPD_SEND_SIGNALING_MSG, DCMD_PTPD_SET_PDELAY_INTERVAL

devctl() in the QNX Neutrino C Library Reference

ptpd-avb in the Utilities Reference

http://ptpd.sourceforge.net/

Parent topic: DCMD_PTPD_*