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How to determine USB Version 1.1 or 2.0
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I have got a Ubuntu server 9.10 system with a USB storage attached.
It works very, very slow. Is there a command to test whether it's 1.1 or 2.0 usb?
How can I find out?
Thanks for your help!
linux ubuntu usb
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
add a comment |
I have got a Ubuntu server 9.10 system with a USB storage attached.
It works very, very slow. Is there a command to test whether it's 1.1 or 2.0 usb?
How can I find out?
Thanks for your help!
linux ubuntu usb
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
add a comment |
I have got a Ubuntu server 9.10 system with a USB storage attached.
It works very, very slow. Is there a command to test whether it's 1.1 or 2.0 usb?
How can I find out?
Thanks for your help!
linux ubuntu usb
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
I have got a Ubuntu server 9.10 system with a USB storage attached.
It works very, very slow. Is there a command to test whether it's 1.1 or 2.0 usb?
How can I find out?
Thanks for your help!
linux ubuntu usb
linux ubuntu usb
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
edited Dec 22 '09 at 16:28
Dennis Williamson
51k1191128
51k1191128
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
asked Dec 22 '09 at 14:21
Fake4dFake4d
3485816
3485816
add a comment |
add a comment |
2 Answers
2
active
oldest
votes
Plug your device in, then see syslog:
$ tail -n 2 /var/log/syslog
Dec 22 17:25:14 localhost kernel: [73348.931267] usb 2-3: new high speed USB device using ehci_hcd and address 13
Dec 22 17:25:14 localhost kernel: [73349.084555] usb 2-3: configuration #1 chosen from 3 choices
Note the device bus id there: usb 2-3.
Now get the version:
$ cat /sys/bus/usb/devices/2-3/version
2.00
Cheers! :)
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
add a comment |
you can use
lsusb -v
a simple way.
you should install usbutils first
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Plug your device in, then see syslog:
$ tail -n 2 /var/log/syslog
Dec 22 17:25:14 localhost kernel: [73348.931267] usb 2-3: new high speed USB device using ehci_hcd and address 13
Dec 22 17:25:14 localhost kernel: [73349.084555] usb 2-3: configuration #1 chosen from 3 choices
Note the device bus id there: usb 2-3.
Now get the version:
$ cat /sys/bus/usb/devices/2-3/version
2.00
Cheers! :)
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
add a comment |
Plug your device in, then see syslog:
$ tail -n 2 /var/log/syslog
Dec 22 17:25:14 localhost kernel: [73348.931267] usb 2-3: new high speed USB device using ehci_hcd and address 13
Dec 22 17:25:14 localhost kernel: [73349.084555] usb 2-3: configuration #1 chosen from 3 choices
Note the device bus id there: usb 2-3.
Now get the version:
$ cat /sys/bus/usb/devices/2-3/version
2.00
Cheers! :)
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
add a comment |
Plug your device in, then see syslog:
$ tail -n 2 /var/log/syslog
Dec 22 17:25:14 localhost kernel: [73348.931267] usb 2-3: new high speed USB device using ehci_hcd and address 13
Dec 22 17:25:14 localhost kernel: [73349.084555] usb 2-3: configuration #1 chosen from 3 choices
Note the device bus id there: usb 2-3.
Now get the version:
$ cat /sys/bus/usb/devices/2-3/version
2.00
Cheers! :)
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
Plug your device in, then see syslog:
$ tail -n 2 /var/log/syslog
Dec 22 17:25:14 localhost kernel: [73348.931267] usb 2-3: new high speed USB device using ehci_hcd and address 13
Dec 22 17:25:14 localhost kernel: [73349.084555] usb 2-3: configuration #1 chosen from 3 choices
Note the device bus id there: usb 2-3.
Now get the version:
$ cat /sys/bus/usb/devices/2-3/version
2.00
Cheers! :)
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
answered Dec 22 '09 at 14:25
kolyptokolypto
6,53974258
6,53974258
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
add a comment |
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
So there is no way to do this without device attach?
– CAMOBAP
Aug 8 '16 at 9:36
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
@CAMOBAP How would you determine it without it being attached? It needs to be attached for the system to see it.
– Duncan X Simpson
Nov 22 '17 at 2:58
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
but why, AFAIK (maybe I'm wrong), both port and device have specified USB protocol version, and if you put USB 1.x device in USB 3.0 port it still will work by 1.x protocol. So why we cannot determine USB version of port by itself?
– CAMOBAP
Nov 22 '17 at 9:21
add a comment |
you can use
lsusb -v
a simple way.
you should install usbutils first
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
add a comment |
you can use
lsusb -v
a simple way.
you should install usbutils first
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
add a comment |
you can use
lsusb -v
a simple way.
you should install usbutils first
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
you can use
lsusb -v
a simple way.
you should install usbutils first
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
answered Apr 23 at 10:00
Ali JabbariAli Jabbari
111
111
add a comment |
add a comment |
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