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milan-avb: adding the ptp4l command line information

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hackerman-kl 2026-04-29 07:42:23 +02:00
parent 4b44c15768
commit 1b81dbab85
1 changed files with 21 additions and 0 deletions
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21
src/modules/module-avb/gptp.c
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@ -4,6 +4,27 @@
/* SPDX-FileCopyrightText: Copyright © 2026 Alexandre Malki <alexandre.malki@kebag-logic.com> */
/* SPDX-License-Identifier: MIT */
/*
* Companion ptp4l invocation (gPTP profile, UDS management enabled,
* Announce path trace recorded):
*
* ptp4l -i <iface> -f /etc/linuxptp/gPTP.cfg \
* --uds_address=/var/run/ptp4l \
* --path_trace_enabled=1 \
* -m
*
* pipewire-avb.conf must point ptp.management-socket at the same path:
*
* ptp.management-socket = "/var/run/ptp4l"
*
* Equivalent pmc(8) probe to confirm ptp4l accepts our management
* messages (-t 1 forces transportSpecific = 1 / TS_IEEE_8021AS,
* matching PTP_GPTP_MANAGEMENT_TYPE in this file):
*
* pmc -u -b 0 -t 1 -s /var/run/ptp4l "GET PARENT_DATA_SET"
* pmc -u -b 0 -t 1 -s /var/run/ptp4l "GET PATH_TRACE_LIST"
*/
#include "gptp.h"
#include <errno.h>