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Groups > linux.debian.user > #235698 > unrolled thread

which command can show if usb 3.0 is used

Started byLong Wind <longwind2@yahoo.com>
First post2021-05-31 02:30 +0200
Last post2021-06-01 13:00 +0200
Articles 20 on this page of 25 — 11 participants

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  which command can show if usb 3.0 is used Long Wind <longwind2@yahoo.com> - 2021-05-31 02:30 +0200
    Re: which command can show if usb 3.0 is used Jude DaShiell <jdashiel@panix.com> - 2021-05-31 02:40 +0200
      Re: which command can show if usb 3.0 is used Jude DaShiell <jdashiel@panix.com> - 2021-05-31 03:40 +0200
      Re: which command can show if usb 3.0 is used Stella Ashburne <rewefie@gmx.com> - 2021-05-31 03:00 +0200
        Re: which command can show if usb 3.0 is used Jude DaShiell <jdashiel@panix.com> - 2021-05-31 03:30 +0200
          Re: which command can show if usb 3.0 is used Long Wind <longwind2@yahoo.com> - 2021-05-31 04:00 +0200
            Re: which command can show if usb 3.0 is used Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-05-31 05:20 +0200
            Re: which command can show if usb 3.0 is used <tomas@tuxteam.de> - 2021-05-31 09:10 +0200
              Re: which command can show if usb 3.0 is used Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-05-31 10:50 +0200
                Re: which command can show if usb 3.0 is used tomas@tuxteam.de - 2021-05-31 11:20 +0200
                  Re: which command can show if usb 3.0 is used Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-05-31 19:50 +0200
                    Re: which command can show if usb 3.0 is used Andrei POPESCU <andreimpopescu@gmail.com> - 2021-06-01 11:00 +0200
                      Re: which command can show if usb 3.0 is used Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-06-01 13:00 +0200
                Re: which command can show if usb 3.0 is used Stefan Monnier <monnier@iro.umontreal.ca> - 2021-05-31 16:00 +0200
              Re: which command can show if usb 3.0 is used Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-05-31 11:00 +0200
              Re: which command can show if usb 3.0 is used <tomas@tuxteam.de> - 2021-05-31 11:20 +0200
        Re: which command can show if usb 3.0 is used Long Wind <longwind2@yahoo.com> - 2021-05-31 03:20 +0200
          Re: which command can show if usb 3.0 is used Geoff <unit735@bigpond.com> - 2021-05-31 04:10 +0200
            Re: which command can show if usb 3.0 is used Polyna-Maude Racicot-Summerside <debian@polynamaude.com> - 2021-05-31 05:20 +0200
            Re: which command can show if usb 3.0 is used Geoff Reidy <geoff.reidy@gmail.com> - 2021-05-31 05:10 +0200
            Re: which command can show if usb 3.0 is used Geoff <unit735@bigpond.com> - 2021-05-31 05:10 +0200
              Re: which command can show if usb 3.0 is used Geoff <unit735@bigpond.com> - 2021-05-31 05:30 +0200
    Re: which command can show if usb 3.0 is used Jude DaShiell <jdashiel@panix.com> - 2021-05-31 06:50 +0200
    Re: which command can show if usb 3.0 is used Stefan Monnier <monnier@iro.umontreal.ca> - 2021-05-31 16:00 +0200
    Re: which command can show if usb 3.0 is used Thomas Amm <debili@open-email.net> - 2021-06-01 13:00 +0200

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#235698 — which command can show if usb 3.0 is used

FromLong Wind <longwind2@yahoo.com>
Date2021-05-31 02:30 +0200
Subjectwhich command can show if usb 3.0 is used
Message-ID<CkDYB-4od-7@gated-at.bofh.it>

[Multipart message — attachments visible in raw view] — view raw

i have new usb 3 diski want to find out if usb 3 is used when it's connected to stretch

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#235700

FromJude DaShiell <jdashiel@panix.com>
Date2021-05-31 02:40 +0200
Message-ID<CkE8h-4r2-1@gated-at.bofh.it>
In reply to#235698
First disconnect the disk; next run lsblk >lsblk.old, next connect the
disk, next run lsblk >lsblk.new.  Finally do a diff on lsblk.old lsblk.new
and see if something shows up in lsblk.new that isn't in lsblk.old.

On Mon, 31 May 2021, Long Wind wrote:

> i have new usb 3 diski want to find out if usb 3 is used when it's connected to stretch
>

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#235704

FromJude DaShiell <jdashiel@panix.com>
Date2021-05-31 03:40 +0200
Message-ID<CkF4m-4Z2-3@gated-at.bofh.it>
In reply to#235700
easier, diff -aq lsblk.old lsblk.new
Even without that, wc -l lsblk.old && wc -l lsblk.new
With two different numbers, the new drive is recognized.


On Mon, 31 May 2021, Stella Ashburne wrote:

> Hi
>
> > Sent: Monday, May 31, 2021 at 8:36 AM
> > From: "Jude DaShiell" <jdashiel@panix.com>
> > To: "Long Wind" <longwind2@yahoo.com>, "Debian-user Mailing List" <debian-user@lists.debian.org>
> > Subject: Re: which command can show if usb 3.0 is used
> >
> > First disconnect the disk; next run lsblk >lsblk.old, next connect the
> > disk, next run lsblk >lsblk.new.  Finally do a diff on lsblk.old lsblk.new
> > and see if something shows up in lsblk.new that isn't in lsblk.old.
> >
> Can I do a diff using the following command in a terminal?
>
> diff -c lsblk.old lsblk.new
>
>

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#235705

FromStella Ashburne <rewefie@gmx.com>
Date2021-05-31 03:00 +0200
Message-ID<CkErE-4xl-1@gated-at.bofh.it>
In reply to#235700
Hi

> Sent: Monday, May 31, 2021 at 8:36 AM
> From: "Jude DaShiell" <jdashiel@panix.com>
> To: "Long Wind" <longwind2@yahoo.com>, "Debian-user Mailing List" <debian-user@lists.debian.org>
> Subject: Re: which command can show if usb 3.0 is used
>
> First disconnect the disk; next run lsblk >lsblk.old, next connect the
> disk, next run lsblk >lsblk.new.  Finally do a diff on lsblk.old lsblk.new
> and see if something shows up in lsblk.new that isn't in lsblk.old.
>
Can I do a diff using the following command in a terminal?

diff -c lsblk.old lsblk.new

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#235706

FromJude DaShiell <jdashiel@panix.com>
Date2021-05-31 03:30 +0200
Message-ID<CkEUG-4VK-1@gated-at.bofh.it>
In reply to#235705
Have an iso for which you know its size.
Use dd to copy that iso onto a usb 2.0 drive and time the copy.
Copy that same iso onto the usb 3.0 drive and time it.
If the usb 3.0 copy takes less time in the neighborhood of the expected
speed difference of usb 3.0 to usb 2.0 then you got fortunate.
If the copy takes the same amount of time or nearly the same amount of
time then usb 3.0 is not being used.
This is best done using a sports watch or stop watch.


On Mon, 31 May 2021, Long Wind wrote:

>  Thanks, but lsblk just lists new usb diski want to find out if usb 3.0 is usedusb 3.0 is faster than usb 2.0
>
>

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#235708

FromLong Wind <longwind2@yahoo.com>
Date2021-05-31 04:00 +0200
Message-ID<CkFnH-55m-5@gated-at.bofh.it>
In reply to#235706

[Multipart message — attachments visible in raw view] — view raw

 Jude, it sounds foolish, there has to be some better wayand i don't have usb 2.0 disk

my usb disk is new, it supports usb3
stretch must support usb3 because usb3 is supported ever since kernel 2.6.31i wonder if hp t5740e supports usb3
  




  

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#235711

FromPolyna-Maude Racicot-Summerside <debian@polynamaude.com>
Date2021-05-31 05:20 +0200
Message-ID<CkGD8-66t-7@gated-at.bofh.it>
In reply to#235708

[Multipart message — attachments visible in raw view] — view raw

Hi.

On 2021-05-30 9:53 p.m., Long Wind wrote:
> Jude, it sounds foolish, there has to be some better way
> and i don't have usb 2.0 disk
> 
> my usb disk is new, it supports usb3
> stretch must support usb3 because usb3 is supported ever since /kernel
> 2.6.31/
> i wonder if hp t5740e supports usb3
> 
> 
You can install hwinfo and it will tell you what's installed in your
computer, including the type of usb controler.

Or you can simply check the specs of your computer.

Have you tried, also you already have another answer regarding looking
into your logs. This will tell you if your drive is using USB 3 or not.
Also, some computer have only some port USB 3, the other will be only
USB 2. So looking at the logs will make sure you connected to the good port.

What have you tried before asking for help ? This sound to me like we
already gave you all the good options to know what's going on. What are
you expecting more ?

This sounds much to me like "I want to know if my computer is USB 3 but
I didn't even google-it"...
> 
> 
> 

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#235720

From<tomas@tuxteam.de>
Date2021-05-31 09:10 +0200
Message-ID<CkKdH-8m0-1@gated-at.bofh.it>
In reply to#235708

[Multipart message — attachments visible in raw view] — view raw

On Mon, May 31, 2021 at 01:53:33AM +0000, Long Wind wrote:

Perhaps lsusb is your friend. Watch which bus your device
is hanging off.

>  Jude, it sounds foolish, there has to be some better wayand i don't have usb 2.0 disk

Calling people who try to help you "foolish" is not nice
(and might end up in nobody wanting to help you).

Cheers
 - t

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#235723

FromPolyna-Maude Racicot-Summerside <debian@polynamaude.com>
Date2021-05-31 10:50 +0200
Message-ID<CkLMt-F7-3@gated-at.bofh.it>
In reply to#235720

[Multipart message — attachments visible in raw view] — view raw

Hi,

On 2021-05-31 3:01 a.m., tomas@tuxteam.de wrote:
> On Mon, May 31, 2021 at 01:53:33AM +0000, Long Wind wrote:
> 
> Perhaps lsusb is your friend. Watch which bus your device
> is hanging off.
> 
>>  Jude, it sounds foolish, there has to be some better wayand i don't have usb 2.0 disk
> 
> Calling people who try to help you "foolish" is not nice
> (and might end up in nobody wanting to help you).
> 
> Cheers
>  - t
> 

What is foolish is not to even check in the specifications of one's
computer if it does support USB 3.0 at the hardware level.

There's a trick called "help yourself and we'll help you", this can also
be called "do your part".

Using lsusb you can see on what bus your devices in plugged into. As
computers often have some port only USB 2.0 and some supporting USB 2.0
and 3.0, this way you can make sure your device is plugged into the 3.0
ones.

How to know what port support what type of USB ?

hwinfo --usb-ctrl

And after doing

lsusb -t

...
-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#235729

Fromtomas@tuxteam.de
Date2021-05-31 11:20 +0200
Message-ID<CkMfw-158-9@gated-at.bofh.it>
In reply to#235723

[Multipart message — attachments visible in raw view] — view raw

On Mon, May 31, 2021 at 04:47:13AM -0400, Polyna-Maude Racicot-Summerside wrote:
> Hi,
> 
> On 2021-05-31 3:01 a.m., tomas@tuxteam.de wrote:
> > On Mon, May 31, 2021 at 01:53:33AM +0000, Long Wind wrote:
> > 
> > Perhaps lsusb is your friend. Watch which bus your device
> > is hanging off.
> > 
> >>  Jude, it sounds foolish, there has to be some better wayand i don't have usb 2.0 disk
> > 
> > Calling people who try to help you "foolish" is not nice
> > (and might end up in nobody wanting to help you).
> > 
> > Cheers
> >  - t
> > 
> 
> What is foolish is not to even check in the specifications of one's
> computer if it does support USB 3.0 at the hardware level.

Now be easy on others, will you?

Sometimes I send out a help request to immediately slap my forehead:
the answer was written on the package ;-)

Cheers
 - t

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#235755

FromPolyna-Maude Racicot-Summerside <debian@polynamaude.com>
Date2021-05-31 19:50 +0200
Message-ID<CkUd4-5Iv-3@gated-at.bofh.it>
In reply to#235729

[Multipart message — attachments visible in raw view] — view raw

Hi,

On 2021-05-31 5:14 a.m., tomas@tuxteam.de wrote:
> On Mon, May 31, 2021 at 04:47:13AM -0400, Polyna-Maude Racicot-Summerside wrote:
>> Hi,
>>
>> On 2021-05-31 3:01 a.m., tomas@tuxteam.de wrote:
>>> On Mon, May 31, 2021 at 01:53:33AM +0000, Long Wind wrote:
>>>
>>> Perhaps lsusb is your friend. Watch which bus your device
>>> is hanging off.
>>>
>>>>  Jude, it sounds foolish, there has to be some better wayand i don't 
have usb 2.0 disk
>>>
>>> Calling people who try to help you "foolish" is not nice
>>> (and might end up in nobody wanting to help you).
>>>
>>> Cheers
>>>  - t
>>>
>>
>> What is foolish is not to even check in the specifications of one's
>> computer if it does support USB 3.0 at the hardware level.
> 
> Now be easy on others, will you?
> 
> Sometimes I send out a help request to immediately slap my forehead:
> the answer was written on the package ;-)
> 
Well maybe you forgot a basic rule of life, not only computing.
You are responsible for your own success. Before asking for help, do
something to find a solution yourself.

Oh, no, too complicated to look on packages.debian.org so I'll ask on
the mailing list what's the latest version of package xyz and if it's
available in backports.

Oh, no, too complicated to do a man dd to know what are the command line
options. I'll just ask on the mailing list...

If you don't bother making little effort then people won't make them
either. So when you ask question, it will just be "Oh this guy always
ask dumb question, now he asked a good question but if he ask so simple
question most of the time, this mean I'll have to explain everything to
him. If a he doesn't know what this word mean then I'll need to explain
it too, because he won't even take the time to check what it means. He's
just gonna ask me back what's a "canarie" or what's the "stack" when we
are talking about buffer overflow.

Do I really want to get into all this ? No...
So I won't answer and you loose your chance to get real help when it's
for something that you won't find easily the answer...
> Cheers
>  - t
> 

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#235763

FromAndrei POPESCU <andreimpopescu@gmail.com>
Date2021-06-01 11:00 +0200
Message-ID<Cl8pI-5KB-1@gated-at.bofh.it>
In reply to#235755

[Multipart message — attachments visible in raw view] — view raw

On Lu, 31 mai 21, 13:41:43, Polyna-Maude Racicot-Summerside wrote:
> 
> On 2021-05-31 5:14 a.m., tomas@tuxteam.de wrote:
> > On Mon, May 31, 2021 at 04:47:13AM -0400, Polyna-Maude Racicot-Summerside wrote:
> >>
> >> What is foolish is not to even check in the specifications of one's
> >> computer if it does support USB 3.0 at the hardware level.
> > 
> > Now be easy on others, will you?
> > 
> > Sometimes I send out a help request to immediately slap my forehead:
> > the answer was written on the package ;-)
> > 
> Well maybe you forgot a basic rule of life, not only computing.
> You are responsible for your own success. Before asking for help, do
> something to find a solution yourself.
> 
> Oh, no, too complicated to look on packages.debian.org so I'll ask on
> the mailing list what's the latest version of package xyz and if it's
> available in backports.
> 
> Oh, no, too complicated to do a man dd to know what are the command line
> options. I'll just ask on the mailing list...
> 
> If you don't bother making little effort then people won't make them
> either. So when you ask question, it will just be "Oh this guy always
> ask dumb question, now he asked a good question but if he ask so simple
> question most of the time, this mean I'll have to explain everything to
> him. If a he doesn't know what this word mean then I'll need to explain
> it too, because he won't even take the time to check what it means. He's
> just gonna ask me back what's a "canarie" or what's the "stack" when we
> are talking about buffer overflow.
> 
> Do I really want to get into all this ? No...
> So I won't answer and you loose your chance to get real help when it's
> for something that you won't find easily the answer...

While I mostly agree with your point, I believe it can be done better, 
nicer, and ultimately more helpful.

Since you've been pointing people to ESR's writings, allow me to suggest 
you (re)read the section entitled "How to Answer Questions in a Helpful 
Way", from his famous "How To Ask Questions The Smart Way" essay[1].

http://www.catb.org/esr/faqs/smart-questions.html#idm667

[1] which I believe is at least slightly outdated in regards to 
communication style in general.

Kind regards,
Andrei
-- 
http://wiki.debian.org/FAQsFromDebianUser

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#235775

FromPolyna-Maude Racicot-Summerside <debian@polynamaude.com>
Date2021-06-01 13:00 +0200
Message-ID<ClahP-6QV-5@gated-at.bofh.it>
In reply to#235763

[Multipart message — attachments visible in raw view] — view raw

On 2021-06-01 4:54 a.m., Andrei POPESCU wrote:
> On Lu, 31 mai 21, 13:41:43, Polyna-Maude Racicot-Summerside wrote:
>>
>> On 2021-05-31 5:14 a.m., tomas@tuxteam.de wrote:
>>> On Mon, May 31, 2021 at 04:47:13AM -0400, Polyna-Maude Racicot-Summerside wrote:
>>>>
>>>> What is foolish is not to even check in the specifications of one's
>>>> computer if it does support USB 3.0 at the hardware level.
>>>
>>> Now be easy on others, will you?
>>>
>>> Sometimes I send out a help request to immediately slap my forehead:
>>> the answer was written on the package ;-)
>>>
>> Well maybe you forgot a basic rule of life, not only computing.
>> You are responsible for your own success. Before asking for help, do
>> something to find a solution yourself.
>>
>> Oh, no, too complicated to look on packages.debian.org so I'll ask on
>> the mailing list what's the latest version of package xyz and if it's
>> available in backports.
>>
>> Oh, no, too complicated to do a man dd to know what are the command line
>> options. I'll just ask on the mailing list...
>>
>> If you don't bother making little effort then people won't make them
>> either. So when you ask question, it will just be "Oh this guy always
>> ask dumb question, now he asked a good question but if he ask so simple
>> question most of the time, this mean I'll have to explain everything to
>> him. If a he doesn't know what this word mean then I'll need to explain
>> it too, because he won't even take the time to check what it means. He's
>> just gonna ask me back what's a "canarie" or what's the "stack" when we
>> are talking about buffer overflow.
>>
>> Do I really want to get into all this ? No...
>> So I won't answer and you loose your chance to get real help when it's
>> for something that you won't find easily the answer...
> 
> While I mostly agree with your point, I believe it can be done better, 
> nicer, and ultimately more helpful.
> 
> Since you've been pointing people to ESR's writings, allow me to suggest 
> you (re)read the section entitled "How to Answer Questions in a Helpful 

> Way", from his famous "How To Ask Questions The Smart Way" essay[1].
> 
> http://www.catb.org/esr/faqs/smart-questions.html#idm667
> 
> [1] which I believe is at least slightly outdated in regards to 
> communication style in general.
> 
> Kind regards,
> Andrei
> 

I've said what I think is the closest to the truth.
Now if someone don't like the hint I gave him, he can simply ignore what
I write, the same way I'll ignore most questions that seem much like RTFM.

It seems to be this type of thinking that sound like "Why read a book
when I can ask question". Exactly.... Why be smart and understand how
things work (so I don't have to ask questions) when I can simply learn
how to repeat like a parrot.

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#235744

FromStefan Monnier <monnier@iro.umontreal.ca>
Date2021-05-31 16:00 +0200
Message-ID<CkQCu-3yE-7@gated-at.bofh.it>
In reply to#235723
> hwinfo --usb-ctrl
>
> And after doing
>
> lsusb -t

Thanks.  I wasn't familiar with the `-t` arg to `lsusb`, it's
very informative (e.g. it gives you the actual speed negotiated, so
I can see that my USB C phone still uses 480Mb/s)


        Stefan

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#235725

FromPolyna-Maude Racicot-Summerside <debian@polynamaude.com>
Date2021-05-31 11:00 +0200
Message-ID<CkLW9-Ie-3@gated-at.bofh.it>
In reply to#235720

[Multipart message — attachments visible in raw view] — view raw

On 2021-05-31 4:36 a.m., Long Wind wrote:
> i see, usb 3 isn't used though kernel sees my usb3 disk("new high-speed")
> i have thought my lenovo and hp are modern
> Thanks to all that reply and help!
> 
> to tomas:
> i've been blunt in using "foolish"
> hopefully, Jude isn't hurt.

https://www.chiark.greenend.org.uk/~sgtatham/bugs.html

Maybe you shall read this one.

Will give you a hand for next time.

And don't forget, this ain't microsoft tech support.

No ones has obligation to help you out. If you don't like what people
suggest you, at least explain why the solution doesn't seem to fit.
Solutions are useless unless you have content to back the choices you've
done. Without explanation, they are like politics, pure opinion and a
smell of astrology.

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#235727

From<tomas@tuxteam.de>
Date2021-05-31 11:20 +0200
Message-ID<CkMfv-158-1@gated-at.bofh.it>
In reply to#235720

[Multipart message — attachments visible in raw view] — view raw

On Mon, May 31, 2021 at 08:36:59AM +0000, Long Wind wrote:
> i see, usb 3 isn't used though kernel sees my usb3 disk("new high-speed")
> i have thought my lenovo and hp are modernThanks to all that reply and help!
> 
> to tomas:i've been blunt in using "foolish"hopefully, Jude isn't hurt.

I'm sure it wasn't intentional. I just pointed it out because I sometimes
do myself such things and am happy when others tell me.

Cheers
 - t

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#235707

FromLong Wind <longwind2@yahoo.com>
Date2021-05-31 03:20 +0200
Message-ID<CkEKZ-4SJ-3@gated-at.bofh.it>
In reply to#235705

[Multipart message — attachments visible in raw view] — view raw

 Thanks, but lsblk just lists new usb diski want to find out if usb 3.0 is usedusb 3.0 is faster than usb 2.0 

  

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#235709

FromGeoff <unit735@bigpond.com>
Date2021-05-31 04:10 +0200
Message-ID<CkFxo-5nP-9@gated-at.bofh.it>
In reply to#235707
You should see something in your logs, this is what I get for a usb 3.1 device:

kernel: usb 2-1.2: new SuperSpeed Gen 1 USB device number 5 using xhci_hcd

USB 2 is only "high-speed":

kernel: usb 1-1.3: new high-speed USB device number 12 using xhci_hcd

Regards,
Geoff

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#235710

FromPolyna-Maude Racicot-Summerside <debian@polynamaude.com>
Date2021-05-31 05:20 +0200
Message-ID<CkGD8-66t-5@gated-at.bofh.it>
In reply to#235709

[Multipart message — attachments visible in raw view] — view raw

Hi !

On 2021-05-30 10:29 p.m., Long Wind wrote:
> Thank Geoff! with usb3 disk plugged to lenovo running buster
> i see msg below, but i'm not sure if usb3 is used
> 
> May 31 10:21:18 debian kernel: [13385.174292] usb 5-6: new high-speed
> USB device number 12 using ehci-pci
> May 31 10:21:18 debian kernel: [13385.331455] usb 5-6: New USB device
> found, idVendor=0781, idProduct=5591, bcdDevice= 1.00
> May 31 10:21:18 debian kernel: [13385.331459] usb 5-6: New USB device
> strings: Mfr=1, Product=2, SerialNumber=3
> May 31 10:21:18 debian kernel: [13385.331461] usb 5-6: Product:  SanDisk
> 3.2Gen1
> May 31 10:21:18 debian kernel: [13385.331463] usb 5-6: Manufacturer:  USB
> May 31 10:21:18 debian kernel: [13385.331465] usb 5-6: SerialNumber:
> 01010726504b6423940942c89716195fcf82e07a8b871127b1e65360cf8bb85335c600000000000000000000e0bd07b9ff893100915581073caae2e3
> May 31 10:21:18 debian kernel: [13385.331885] usb-storage 5-6:1.0: USB
> Mass Storage device detected
> May 31 10:21:18 debian kernel: [13385.332549] scsi host4: usb-storage
> 5-6:1.0
> May 31 10:21:19 debian kernel: [13386.359351] scsi 4:0:0:0:
> Direct-Access      USB      SanDisk 3.2Gen1 1.00 PQ: 0 ANSI: 6
> May 31 10:21:19 debian kernel: [13386.359741] sd 4:0:0:0: Attached scsi
> generic sg1 type 0
> May 31 10:21:19 debian kernel: [13386.361717] sd 4:0:0:0: [sdb] 6008832
0
> 512-byte logical blocks: (30.8 GB/28.7 GiB)
> May 31 10:21:19 debian kernel: [13386.364470] sd 4:0:0:0: [sdb] Write
> Protect is off
> May 31 10:21:19 debian kernel: [13386.364473] sd 4:0:0:0: [sdb] Mode
> Sense: 43 00 00 00
> May 31 10:21:19 debian kernel: [13386.365459] sd 4:0:0:0: [sdb] Write
> cache: disabled, read cache: enabled, doesn't support DPO or FUA
> May 31 10:21:19 debian kernel: [13386.381477]  sdb: sdb1 sdb2
> May 31 10:21:19 debian kernel: [13386.385084] sd 4:0:0:0: [sdb] Attached
> SCSI removable disk
> 
> 
> 
> 
> 
> 


What did the message you got says ?

Let me copy here :

==START==
You should see something in your logs, this is what I get for a usb 3.1
device:

kernel: usb 2-1.2: new SuperSpeed Gen 1 USB device number 5 using xhci_hcd

USB 2 is only "high-speed":

kernel: usb 1-1.3: new high-speed USB device number 12 using xhci_hcd

Regards,
Geoff
==STOP==

Now look at the 1st line of the logs you copied...
You need more help ?

Give you a hint : USB 2 is only "high-speed"

-- 
Polyna-Maude R.-Summerside
-Be smart, Be wise, Support opensource development

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#235712

FromGeoff Reidy <geoff.reidy@gmail.com>
Date2021-05-31 05:10 +0200
Message-ID<CkGtr-63a-1@gated-at.bofh.it>
In reply to#235709
Long Wind wrote:
> Thank Geoff! with usb3 disk plugged to lenovo running buster
> i see msg below, but i'm not sure if usb3 is used
> 
> May 31 10:21:18 debian kernel: [13385.174292] usb 5-6: new high-speed USB device number 12 using ehci-pci

Definitely looks like usb 2, the ehci driver also points to this. Is the interface on the PC usb 3?

What kernel are you running, mine seems to use the xhci driver even for usb 2.

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