From: "Michał Pecio" <michal.pecio@gmail.com>
To: eyal@eyal.emu.id.au
Cc: linux-usb@vger.kernel.org
Subject: Re: Understanding 'lsusb -t'
Date: Fri, 30 Aug 2024 16:31:01 +0200 [thread overview]
Message-ID: <20240830163101.54e82db7@foxbook> (raw)
In-Reply-To: <63d4782a-1d83-4252-a0ca-a9b50e6074f0@eyal.emu.id.au>
Hi,
This is nothing new.
Shocking, maybe, and only until you get used to it, but not new ;)
A USB 3.x bus is logically two busses, one for SuperSpeed devices and
one for high-speed (and slower).
A USB 3.x hub is logically two hubs, one on the SS bus and one on HS.
(Note that you also have two root hubs of different speed.)
All other devices are only on one bus. This includes USB 1.1/2.0 hubs.
Regards,
Michal
prev parent reply other threads:[~2024-08-30 14:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-30 12:14 Understanding 'lsusb -t' Eyal Lebedinsky
2024-08-30 12:32 ` Greg KH
2024-08-30 13:41 ` Eyal Lebedinsky
2024-08-30 13:43 ` Eyal Lebedinsky
2024-08-30 14:27 ` Greg KH
2024-08-30 14:33 ` Eyal Lebedinsky
2024-08-30 13:55 ` Eyal Lebedinsky
2024-08-30 14:07 ` Eyal Lebedinsky
2024-08-30 14:28 ` Understanding 'lsusb -t' [correction] Eyal Lebedinsky
2024-08-30 14:28 ` Understanding 'lsusb -t' Greg KH
2024-08-30 14:25 ` Alan Stern
2024-08-30 14:49 ` Greg KH
2024-08-30 14:49 ` Eyal Lebedinsky
2024-08-30 14:31 ` Michał Pecio [this message]
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