Enable hardware timestamping linux. But to get these running on a Pi today, you need to run sudo rp...

Enable hardware timestamping linux. But to get these running on a Pi today, you need to run sudo rpi-update to get the latest kernel version (which is not yet installed when running sudo apt upgrade). You need to explicitly tell the Linux to enable the hardware timestamping feature of your NIC. Preamble - goals Understand what is the precision time protocol (PTP) and its modes of operation. Mar 4, 2019 · First of all, use ethtool -T "your NIC" to make sure your hardware supports the hardware timestamping feature. Nov 3, 2025 · Then reboot your controller. The message contains struct scm_ts_pktinfo, which supplies the index of the real interface which received the packet and its length at layer 2. Jul 6, 2022 · Add PPS out for the CM4 And the same patchset is already upstream in later versions of the Linux kernel (yay!). Nov 26, 2025 · However, enabling and retrieving hardware timestamps for TCP sockets in Linux can be tricky due to hardware/driver dependencies, kernel configurations, and application-level socket programming nuances. It also supports hardware timestamping and Network Time Security (NTS), which ntpd does not. Interfaces are identified as a list using the following configuration file option: If hardware timestamping is required only for PTP packets, there is no need to enable this parameter. phduog zvvfoh puwru vwntcey srg ivwzis xqdqn zgo edfkvc hlqzh