[tcpdump-workers] Link-Layer Header Type request: USB 2.0

Guy Harris gharris at sonic.net
Sun Jul 21 16:47:26 EDT 2019


On Jul 21, 2019, at 12:40 PM, Tomasz Moń <desowin at gmail.com> wrote:

> I would like to request a Link-Layer Header Type for USB 2.0 packets.

It looks as if USB 3.1's packets are different from USB 2.0's packets, so this would be 2.0-specific.

> The new Link-Layer Header Type is supposed to contain the USB 2.0
> packets. That is, anything that appears on the bus between the Start-
> and End-of-Packet delimiters. The packet format is described in
> Chapter 8 Protocol Layer of Universal Serial Bus Specification
> Revision 2.0.

So that's the PID as the first byte and continuing from there?


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