[tcpdump-workers] timestamps

Hello! Has anybody written an application using PCAP, which places a timestamp into the payload? I want to measure the latency between the application layer and the sending buffer. (so ethereal measures the other, using the same kernel clock and in FreeBSD the driver timestamps at the sending

[tcpdump-workers] where does PCAP timestamp before or after the MAC scheduler?

Hello! We want to compare 802.11 MAC schedulers performance, to decide how much the Media Access takes. We want to know where/when does PCAP put the timestamp (from not so accurate kernel time) on to the packets. I already know, it does when the kernel "sees" the packet. The question is: Is