On Wed Jul 29 2020, Richard Cochran wrote: > On Wed, Jul 29, 2020 at 12:29:08PM +0200, Kurt Kanzenbach wrote: >> I'll test it and send v3. But before, I've got another question that >> somebody might have an answer to: >> >> The ptp v1 code always does locate the message type at >> >> msgtype = data + offset + OFF_PTP_CONTROL >> >> OFF_PTP_CONTROL is 32. However, looking at the ptp v1 header, the >> message type is located at offset 20. What am I missing here? > > > My source back in the day was the John Eidson book. In Appendix A it claims > > > Table A.1. Common PTP message fields > > Field name Purpose > -------------------------------------------------------------------- > messageType Identifies message as event or general > control Indicates the message type, e.g., Sync
OK. That was the missing piece. I'll adjust patch 2 accordingly. Thanks a lot. Thanks, Kurt
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