Re: [Linuxptp-users] Adding software-transmit (SOF_TIMESTAMPING_TX_SOFTWARE) capability to driver

[Richard C. <ric...@gm...>]

On Wed, Jul 20, 2022 at 04:37:55PM +0000, Keller, Jacob E wrote:
> Right that's what I was afraid of: its basically just the same as software timestamping.

Actually it is way worse than SW timestamping.

WiFi has collisions.  Many of them.

Multicast frames have zero priority and are *not* re-transmitted when
corrupted by collision.

So the only way to do "regular" PTP (meaning without the FTM) is by
setting up unicast between the WiFi clients and the AP. 

Thanks,
Richard