Timestamping in PHY devices

modulename: mii_timestamper.ko

and/or

timestamping.ko

configname: CONFIG_NETWORK_PHY_TIMESTAMPING

Linux Kernel Configuration
└─>Networking support
└─>Networking options
└─>Timestamping in PHY devices
In linux kernel since version 2.6.36 (release Date: 2010-10-20)  
This allows timestamping of network packets by PHYs (or
other MII bus snooping devices) with hardware timestamping
capabilities. This option adds some overhead in the transmit
and receive paths.

If you are unsure how to answer this question, answer N.

source code: