Re: [PATCH net-next RFC v4 2/5] net: Expose available time stamping layers to user space.

Michael Walle
2023-04-12T10:50:47Z

>> +/* Hardware layer of the SO_TIMESTAMPING provider */
>> +enum timestamping_layer {
>> + SOF_MAC_TIMESTAMPING =3D (1<<0),
>> + SOF_PHY_TIMESTAMPING =3D (1<<1),
>
> What does SOF_ stand for?

I'd guess start of frame. The timestamp will be taken at the
beginning of the frame.

-michael