Re: Speed specific Link-Layer Header Types for USB 2.0

[Tomasz Moń via tcpdump-workers <tcpdump-workers () lists tcpdump org>]

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> From: Tomasz Moń <desowin () gmail com>
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> Date: Mon, 09 May 2022 22:02:26 +0200
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> On Mon, 2022-05-09 at 12:52 -0700, Guy Harris wrote:
> > On May 9, 2022, at 12:40 PM, Tomasz Moń <desowin () gmail com> wrote:
> >
> > > On Mon, 2022-05-09 at 12:02 -0700, Guy Harris wrote:
> > > > On May 9, 2022, at 7:41 AM, Tomasz Moń <desowin () gmail com> wrote:
> > > >
> > > > > That would require defining pseudoheader that would have to be
> > > > > included in every packet.
> > > >
> > > > Is that really a great burden?
> > >
> > > I think it would make it harder to understand the protocol for
> > > newcomers that use tools like Wireshark to try to make sense of
> > > USB.
> >
> > In what fashion would it do so?
>
> The same as why URB level captures are confusing. Maybe not to the same
> level as that would be just a single byte (and the URB metadata
> contains way more information), but it would still raise the questions
> like "where in USB specification this byte is defined?", "Why this
> doesn't match all the documents on USB that I have read?".
>
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