Re: Always see in the dmesg log messages about disconnecting and then connecting USB devices. Although in reality the device is not physically disconnect or connect to.

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# uname -a
Linux localhost.localdomain 3.11.6-301.fc20.x86_64+debug #1 SMP Mon
Oct 21 21:45:52 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux




--
Best Regards,
Mike Gavrilov.


2013/11/3 Михаил Гаврилов <mikhail.v.gavrilov@xxxxxxxxx>:
> [mikhail@localhost ~]$ lsusb -v -t
> /:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/6p, 5000M
>     |__ Port 5: Dev 65, If 0, Class=Hub, Driver=hub/4p, 5000M
> /:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/14p, 480M
>     |__ Port 9: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
>         |__ Port 1: Dev 3, If 0, Class=Hub, Driver=hub/7p, 480M
>             |__ Port 2: Dev 5, If 0, Class=Human Interface Device,
> Driver=usbhid, 12M
>             |__ Port 2: Dev 5, If 1, Class=Human Interface Device,
> Driver=usbhid, 12M
>             |__ Port 2: Dev 5, If 2, Class=Human Interface Device,
> Driver=usbhid, 12M
>             |__ Port 3: Dev 124, If 0, Class=Mass Storage,
> Driver=usb-storage, 480M
>             |__ Port 4: Dev 122, If 0, Class=Hub, Driver=hub/4p, 480M
>                 |__ Port 1: Dev 123, If 0, Class=Human Interface
> Device, Driver=usbhid, 1.5M
>                 |__ Port 1: Dev 123, If 1, Class=Human Interface
> Device, Driver=usbhid, 1.5M
>             |__ Port 5: Dev 7, If 0, Class=Hub, Driver=hub/4p, 480M
>                 |__ Port 1: Dev 10, If 0, Class=Mass Storage,
> Driver=usb-storage, 480M
>             |__ Port 6: Dev 8, If 0, Class=Wireless, Driver=btusb, 12M
>             |__ Port 6: Dev 8, If 1, Class=Wireless, Driver=btusb, 12M
>         |__ Port 2: Dev 4, If 0, Class=Vendor Specific Class,
> Driver=option, 480M
>         |__ Port 2: Dev 4, If 1, Class=Vendor Specific Class,
> Driver=cdc_ncm, 480M
>         |__ Port 2: Dev 4, If 2, Class=Mass Storage, Driver=usb-storage, 480M
>         |__ Port 2: Dev 4, If 3, Class=Mass Storage, Driver=usb-storage, 480M
> [mikhail@localhost ~]$ lsusb -v
>
> Bus 002 Device 065: ID 2109:0811
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               3.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         3
>   bMaxPacketSize0         9
>   idVendor           0x2109
>   idProduct          0x0811
>   bcdDevice           2a.97
>   iManufacturer           1
>   iProduct                2
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           31
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xc0
>       Self Powered
>     MaxPower                2mA
>     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           19
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Feedback
>         wMaxPacketSize     0x0002  1x 2 bytes
>         bInterval              16
>         bMaxBurst               0
>
> Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               3.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         3
>   bMaxPacketSize0         9
>   idVendor           0x1d6b Linux Foundation
>   idProduct          0x0003 3.0 root hub
>   bcdDevice            3.11
>   iManufacturer           3
>   iProduct                2
>   iSerial                 1
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           31
>     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
>         bMaxBurst               0
>
> Bus 001 Device 004: ID 12d1:1506 Huawei Technologies Co., Ltd. Modem/Networkcard
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            0 (Defined at Interface level)
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0x12d1 Huawei Technologies Co., Ltd.
>   idProduct          0x1506 Modem/Networkcard
>   bcdDevice            1.02
>   iManufacturer           2
>   iProduct                1
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength          173
>     bNumInterfaces          4
>     bConfigurationValue     1
>     iConfiguration          3
>     bmAttributes         0x80
>       (Bus Powered)
>     MaxPower              500mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass       255 Vendor Specific Class
>       bInterfaceSubClass      2
>       bInterfaceProtocol     18
>       iInterface              0
>       ** UNRECOGNIZED:  05 24 00 10 01
>       ** UNRECOGNIZED:  04 24 02 02
>       ** UNRECOGNIZED:  05 24 01 00 00
>       ** UNRECOGNIZED:  06 24 06 00 00 00
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval              32
>       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              32
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass       255 Vendor Specific Class
>       bInterfaceSubClass      2
>       bInterfaceProtocol     22
>       iInterface              0
>       ** UNRECOGNIZED:  05 24 00 10 01
>       ** UNRECOGNIZED:  06 24 1a 00 01 1f
>       ** UNRECOGNIZED:  0d 24 0f 04 0f 00 00 00 ea 05 03 00 01
>       ** UNRECOGNIZED:  05 24 06 01 01
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               5
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       1
>       bNumEndpoints           3
>       bInterfaceClass       255 Vendor Specific Class
>       bInterfaceSubClass      2
>       bInterfaceProtocol     22
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               5
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval              32
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval              32
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        2
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass         8 Mass Storage
>       bInterfaceSubClass      6 SCSI
>       bInterfaceProtocol     80 Bulk-Only
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 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     0x84  EP 4 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        3
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass         8 Mass Storage
>       bInterfaceSubClass      6 SCSI
>       bInterfaceProtocol     80 Bulk-Only
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x04  EP 4 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     0x85  EP 5 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>
> Bus 001 Device 008: ID 0a12:0001 Cambridge Silicon Radio, Ltd
> Bluetooth Dongle (HCI mode)
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass          224 Wireless
>   bDeviceSubClass         1 Radio Frequency
>   bDeviceProtocol         1 Bluetooth
>   bMaxPacketSize0        64
>   idVendor           0x0a12 Cambridge Silicon Radio, Ltd
>   idProduct          0x0001 Bluetooth Dongle (HCI mode)
>   bcdDevice           31.64
>   iManufacturer           0
>   iProduct                2
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength          177
>     bNumInterfaces          2
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xc0
>       Self Powered
>     MaxPower                0mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           3
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       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     0x0010  1x 16 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0040  1x 64 bytes
>         bInterval               1
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0000  1x 0 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0000  1x 0 bytes
>         bInterval               1
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       1
>       bNumEndpoints           2
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0009  1x 9 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0009  1x 9 bytes
>         bInterval               1
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       2
>       bNumEndpoints           2
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0011  1x 17 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0011  1x 17 bytes
>         bInterval               1
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       3
>       bNumEndpoints           2
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0019  1x 25 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0019  1x 25 bytes
>         bInterval               1
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       4
>       bNumEndpoints           2
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0021  1x 33 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0021  1x 33 bytes
>         bInterval               1
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       5
>       bNumEndpoints           2
>       bInterfaceClass       224 Wireless
>       bInterfaceSubClass      1 Radio Frequency
>       bInterfaceProtocol      1 Bluetooth
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x03  EP 3 OUT
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0031  1x 49 bytes
>         bInterval               1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            1
>           Transfer Type            Isochronous
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0031  1x 49 bytes
>         bInterval               1
>
> Bus 001 Device 010: ID 05e3:0723 Genesys Logic, Inc. GL827L SD/MMC/MS
> Flash Card Reader
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            0 (Defined at Interface level)
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0x05e3 Genesys Logic, Inc.
>   idProduct          0x0723 GL827L SD/MMC/MS Flash Card Reader
>   bcdDevice           94.51
>   iManufacturer           3
>   iProduct                4
>   iSerial                 2
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           32
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0x80
>       (Bus Powered)
>     MaxPower              500mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass         8 Mass Storage
>       bInterfaceSubClass      6 SCSI
>       bInterfaceProtocol     80 Bulk-Only
>       iInterface              0
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         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     0x02  EP 2 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               0
>
> Bus 001 Device 007: ID 1a40:0101 Terminus Technology Inc. Hub
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x1a40 Terminus Technology Inc.
>   idProduct          0x0101 Hub
>   bcdDevice            1.11
>   iManufacturer           0
>   iProduct                1
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower              100mA
>     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     0x0001  1x 1 bytes
>         bInterval              12
>
> Bus 001 Device 123: ID 04d9:1503 Holtek Semiconductor, Inc. Shortboard Lefty
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               1.10
>   bDeviceClass            0 (Defined at Interface level)
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0         8
>   idVendor           0x04d9 Holtek Semiconductor, Inc.
>   idProduct          0x1503 Shortboard Lefty
>   bcdDevice            3.10
>   iManufacturer           1
>   iProduct                2
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           59
>     bNumInterfaces          2
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xa0
>       (Bus Powered)
>       Remote Wakeup
>     MaxPower              100mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         3 Human Interface Device
>       bInterfaceSubClass      1 Boot Interface Subclass
>       bInterfaceProtocol      1 Keyboard
>       iInterface              0
>         HID Device Descriptor:
>           bLength                 9
>           bDescriptorType        33
>           bcdHID               1.10
>           bCountryCode            0 Not supported
>           bNumDescriptors         1
>           bDescriptorType        34 Report
>           wDescriptorLength      62
>          Report Descriptors:
>            ** UNAVAILABLE **
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval              10
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         3 Human Interface Device
>       bInterfaceSubClass      0 No Subclass
>       bInterfaceProtocol      0 None
>       iInterface              0
>         HID Device Descriptor:
>           bLength                 9
>           bDescriptorType        33
>           bcdHID               1.10
>           bCountryCode            0 Not supported
>           bNumDescriptors         1
>           bDescriptorType        34 Report
>           wDescriptorLength     101
>          Report Descriptors:
>            ** UNAVAILABLE **
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval              10
>
> Bus 001 Device 122: ID 05e3:0608 Genesys Logic, Inc. USB-2.0 4-Port HUB
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x05e3 Genesys Logic, Inc.
>   idProduct          0x0608 USB-2.0 4-Port HUB
>   bcdDevice            9.01
>   iManufacturer           0
>   iProduct                1
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower              100mA
>     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     0x0001  1x 1 bytes
>         bInterval              12
>
> Bus 001 Device 124: ID 1bbb:019b T & A Mobile Phones
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            0 (Defined at Interface level)
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0        64
>   idVendor           0x1bbb T & A Mobile Phones
>   idProduct          0x019b
>   bcdDevice            2.31
>   iManufacturer           2
>   iProduct                3
>   iSerial                 4
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           32
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0x80
>       (Bus Powered)
>     MaxPower              500mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           2
>       bInterfaceClass         8 Mass Storage
>       bInterfaceSubClass      6 SCSI
>       bInterfaceProtocol     80 Bulk-Only
>       iInterface              1
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         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     0x01  EP 1 OUT
>         bmAttributes            2
>           Transfer Type            Bulk
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0200  1x 512 bytes
>         bInterval               1
>
> Bus 001 Device 005: ID 046d:c52b Logitech, Inc. Unifying Receiver
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            0 (Defined at Interface level)
>   bDeviceSubClass         0
>   bDeviceProtocol         0
>   bMaxPacketSize0         8
>   idVendor           0x046d Logitech, Inc.
>   idProduct          0xc52b Unifying Receiver
>   bcdDevice           12.01
>   iManufacturer           1
>   iProduct                2
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           84
>     bNumInterfaces          3
>     bConfigurationValue     1
>     iConfiguration          4
>     bmAttributes         0xa0
>       (Bus Powered)
>       Remote Wakeup
>     MaxPower               98mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         3 Human Interface Device
>       bInterfaceSubClass      1 Boot Interface Subclass
>       bInterfaceProtocol      1 Keyboard
>       iInterface              0
>         HID Device Descriptor:
>           bLength                 9
>           bDescriptorType        33
>           bcdHID               1.11
>           bCountryCode            0 Not supported
>           bNumDescriptors         1
>           bDescriptorType        34 Report
>           wDescriptorLength      59
>          Report Descriptors:
>            ** UNAVAILABLE **
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x81  EP 1 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval               8
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        1
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         3 Human Interface Device
>       bInterfaceSubClass      1 Boot Interface Subclass
>       bInterfaceProtocol      2 Mouse
>       iInterface              0
>         HID Device Descriptor:
>           bLength                 9
>           bDescriptorType        33
>           bcdHID               1.11
>           bCountryCode            0 Not supported
>           bNumDescriptors         1
>           bDescriptorType        34 Report
>           wDescriptorLength     148
>          Report Descriptors:
>            ** UNAVAILABLE **
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x82  EP 2 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0008  1x 8 bytes
>         bInterval               2
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        2
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         3 Human Interface Device
>       bInterfaceSubClass      0 No Subclass
>       bInterfaceProtocol      0 None
>       iInterface              0
>         HID Device Descriptor:
>           bLength                 9
>           bDescriptorType        33
>           bcdHID               1.11
>           bCountryCode            0 Not supported
>           bNumDescriptors         1
>           bDescriptorType        34 Report
>           wDescriptorLength      98
>          Report Descriptors:
>            ** UNAVAILABLE **
>       Endpoint Descriptor:
>         bLength                 7
>         bDescriptorType         5
>         bEndpointAddress     0x83  EP 3 IN
>         bmAttributes            3
>           Transfer Type            Interrupt
>           Synch Type               None
>           Usage Type               Data
>         wMaxPacketSize     0x0020  1x 32 bytes
>         bInterval               2
>
> Bus 001 Device 003: ID 1a40:0201 Terminus Technology Inc. FE 2.1 7-port Hub
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         2 TT per port
>   bMaxPacketSize0        64
>   idVendor           0x1a40 Terminus Technology Inc.
>   idProduct          0x0201 FE 2.1 7-port Hub
>   bcdDevice            1.00
>   iManufacturer           0
>   iProduct                1
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           41
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower              100mA
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       0
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      1 Single TT
>       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     0x0001  1x 1 bytes
>         bInterval              12
>     Interface Descriptor:
>       bLength                 9
>       bDescriptorType         4
>       bInterfaceNumber        0
>       bAlternateSetting       1
>       bNumEndpoints           1
>       bInterfaceClass         9 Hub
>       bInterfaceSubClass      0 Unused
>       bInterfaceProtocol      2 TT per port
>       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     0x0001  1x 1 bytes
>         bInterval              12
>
> Bus 001 Device 002: ID 2109:0811
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.10
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x2109
>   idProduct          0x0811
>   bcdDevice           29.97
>   iManufacturer           0
>   iProduct                1
>   iSerial                 0
>   bNumConfigurations      1
>   Configuration Descriptor:
>     bLength                 9
>     bDescriptorType         2
>     wTotalLength           25
>     bNumInterfaces          1
>     bConfigurationValue     1
>     iConfiguration          0
>     bmAttributes         0xe0
>       Self Powered
>       Remote Wakeup
>     MaxPower              100mA
>     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     0x0001  1x 1 bytes
>         bInterval              12
>
> Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
> Couldn't open device, some information will be missing
> Device Descriptor:
>   bLength                18
>   bDescriptorType         1
>   bcdUSB               2.00
>   bDeviceClass            9 Hub
>   bDeviceSubClass         0 Unused
>   bDeviceProtocol         1 Single TT
>   bMaxPacketSize0        64
>   idVendor           0x1d6b Linux Foundation
>   idProduct          0x0002 2.0 root hub
>   bcdDevice            3.11
>   iManufacturer           3
>   iProduct                2
>   iSerial                 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
>
> --
> Best Regards,
> Mike Gavrilov.
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