==========================================================================================================
lusb
==========================================================================================================

Bus 004 Device 002: ID 1b1c:1b09 Corsair
Device Descriptor:
  bLength                18
  bDescriptorType         1
  bcdUSB               2.00
  bDeviceClass            0 (Defined at Interface level)
  bDeviceSubClass         0
  bDeviceProtocol         0
  bMaxPacketSize0        64
  idVendor           0x1b1c Corsair
  idProduct          0x1b09
  bcdDevice            1.09
  iManufacturer           1 Corsair
  iProduct                2 Corsair K70B Gaming Keyboard
  iSerial                 0
  bNumConfigurations      1
  Configuration Descriptor:
    bLength                 9
    bDescriptorType         2
    wTotalLength           84
    bNumInterfaces          3
    bConfigurationValue     1
    iConfiguration          0
    bmAttributes         0xa0
      (Bus Powered)
      Remote Wakeup
    MaxPower              500mA
    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      65
         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               1
    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               1.11
          bCountryCode            0 Not supported
          bNumDescriptors         1
          bDescriptorType        34 Report
          wDescriptorLength      25
         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     0x0004  1x 4 bytes
        bInterval               1
    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      37
         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     0x000f  1x 15 bytes
        bInterval               1
Device Status:     0x0000
  (Bus Powered)


==========================================================================================================
dmesg with unplug and plugin
==========================================================================================================


[  918.358011] usb 4-1: USB disconnect, device number 2
[  923.132084] usb 4-1: new full-speed USB device number 4 using ohci-pci
[  923.304579] usb 4-1: New USB device found, idVendor=1b1c, idProduct=1b09
[  923.304588] usb 4-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[  923.304593] usb 4-1: Product: Corsair K70B Gaming Keyboard
[  923.304597] usb 4-1: Manufacturer: Corsair
[  923.310976] input: Corsair Corsair K70B Gaming Keyboard as /devices/pci0000:00/0000:00:12.0/usb4/4-1/4-1:1.0/input/input22
[  923.311154] hid-generic 0003:1B1C:1B09.0008: input,hidraw1: USB HID v1.11 Keyboard [Corsair Corsair K70B Gaming Keyboard] on usb-0000:00:12.0-1/input0
[  923.316806] input: Corsair Corsair K70B Gaming Keyboard as /devices/pci0000:00/0000:00:12.0/usb4/4-1/4-1:1.1/input/input23
[  923.316982] hid-generic 0003:1B1C:1B09.0009: input,hidraw2: USB HID v1.11 Device [Corsair Corsair K70B Gaming Keyboard] on usb-0000:00:12.0-1/input1
[  923.322695] input: Corsair Corsair K70B Gaming Keyboard as /devices/pci0000:00/0000:00:12.0/usb4/4-1/4-1:1.2/input/input24
[  923.322832] hid-generic 0003:1B1C:1B09.000A: input,hidraw3: USB HID v1.11 Keyboard [Corsair Corsair K70B Gaming Keyboard] on usb-0000:00:12.0-1/input2