Can someone explain the output from lsusb here?
Karl F. Larsen
klarsen1 at gmail.com
Thu Jul 2 13:29:38 UTC 2009
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Colin Law wrote:
> 2009/7/2 Karl F. Larsen <klarsen1 at gmail.com>:
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>> Karl Auer wrote:
>>> I'm puzzled because only two of supposedly 6 USB interfaces work on my
>>> new Dell Vostro 1720.
>>>
>>> This is the output from "lsusb" - the first line is the built-in webcam,
>>> the mouse is, well, the mouse :-) and I don't understand the rest.
>>>
>>> Would some kind soul care to explain?
>>>
>>> The four interfaces that don't work - at least not with my mouse - are
>>> noticeably stiffer to insert the USP plug into than the two that do
>>> work.
>>>
>>> Regards, K.
>>>
>>> Bus 002 Device 002: ID 0c45:63e0 Microdia
>>> Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>> Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>> Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>> Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>>> Bus 005 Device 004: ID 045e:0039 Microsoft Corp. IntelliMouse Optical
>>> Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>> Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>> Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>>>
>>>
>> Â Â Â Â The place to check USB is in the BIOS. My guess is your BIOS has turned
>> off the USB devises OR your new computer is broke.
>>
>
> I think the OP was hoping for an explanation of the output from lsusb,
> I was looking forward to that also. man usb is not particularly
> helpful. Can anyone help?
>
> If the bios had disabled the usb port I would have thought that would
> have been clear from the lsusb output.
>
> Colin
>
Well if he wants that do this:
karl at karl-hardy:~$ sudo lsusb -vv
[sudo] password for karl:
Bus 002 Device 002: ID 058f:6362 Alcor Micro Corp. Hi-Speed 21-in-1
Flash Card Reader/Writer (Internal/External)
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
idVendor 0x058f Alcor Micro Corp.
idProduct 0x6362 Hi-Speed 21-in-1 Flash Card Reader/Writer
(Internal/External)
bcdDevice 1.27
iManufacturer 1 Generic
iProduct 2 Mass Storage Device
iSerial 3 058F312D81B
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 32
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 250mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 8 Mass Storage
bInterfaceSubClass 6 SCSI
bInterfaceProtocol 80 Bulk (Zip)
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x01 EP 1 OUT
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 2
Transfer Type Bulk
Synch Type None
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 0
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
Bus 002 Device 001: ID 0000:0000
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 1 Single TT
bMaxPacketSize0 64
idVendor 0x0000
idProduct 0x0000
bcdDevice 2.06
iManufacturer 3 Linux 2.6.24-24-generic ehci_hcd
iProduct 2 EHCI Host Controller
iSerial 1 0000:00:0b.1
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0004 1x 4 bytes
bInterval 12
Hub Descriptor:
bLength 11
bDescriptorType 41
nNbrPorts 8
wHubCharacteristic 0x000a
No power switching (usb 1.0)
Per-port overcurrent protection
TT think time 8 FS bits
bPwrOn2PwrGood 10 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00 0x00
PortPwrCtrlMask 0xff 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Port 7: 0000.0100 power
Port 8: 0000.0503 highspeed power enable connect
Device Status: 0x0003
Self Powered
Remote Wakeup Enabled
Bus 001 Device 001: ID 0000:0000
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 1.10
bDeviceClass 9 Hub
bDeviceSubClass 0 Unused
bDeviceProtocol 0 Full speed (or root) hub
bMaxPacketSize0 64
idVendor 0x0000
idProduct 0x0000
bcdDevice 2.06
iManufacturer 3 Linux 2.6.24-24-generic ohci_hcd
iProduct 2 OHCI Host Controller
iSerial 1 0000:00:0b.0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 25
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xe0
Self Powered
Remote Wakeup
MaxPower 0mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 9 Hub
bInterfaceSubClass 0 Unused
bInterfaceProtocol 0 Full speed (or root) hub
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0002 1x 2 bytes
bInterval 255
Hub Descriptor:
bLength 11
bDescriptorType 41
nNbrPorts 8
wHubCharacteristic 0x0002
No power switching (usb 1.0)
Ganged overcurrent protection
bPwrOn2PwrGood 1 * 2 milli seconds
bHubContrCurrent 0 milli Ampere
DeviceRemovable 0x00 0x00
PortPwrCtrlMask 0xff 0xff
Hub Port Status:
Port 1: 0000.0100 power
Port 2: 0000.0100 power
Port 3: 0000.0100 power
Port 4: 0000.0100 power
Port 5: 0000.0100 power
Port 6: 0000.0100 power
Port 7: 0000.0100 power
Port 8: 0000.0100 power
Device Status: 0x0003
Self Powered
Remote Wakeup Enabled
karl at karl-hardy:~$
This is more than you could ever use and it is ALL about your USB system.
73 karl
- --
Karl F. Larsen, AKA K5DI
Linux User
#450462 http://counter.li.org.
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