USB Composite Device

Connection StatusDevice connected
Current Configuration1
SpeedLow
Device Address9
Number Of Open Pipes2
Device Descriptor Logitech Gaming Keyboard
OffsetFieldSizeValueDescription
0 bLength 1 12h
1 bDescriptorType 1 01h Device
2 bcdUSB 2 0200h USB Spec 2.0
4 bDeviceClass 1 00h Class info in Ifc Descriptors
5 bDeviceSubClass 1 00h
6 bDeviceProtocol 1 00h
7 bMaxPacketSize0 1 08h 8 bytes
8 idVendor 2 046Dh Logitech, Inc.
10 idProduct 2 C221h
12 bcdDevice 2 0170h 1.70
14 iManufacturer 1 01h "Logitech"
15 iProduct 1 02h "Logitech Gaming Keyboard"
16 iSerialNumber 1 00h
17 bNumConfigurations 1 01h
Configuration Descriptor 1 Bus Powered, 100 mA
OffsetFieldSizeValueDescription
0 bLength 1 09h
1 bDescriptorType 1 02h Configuration
2 wTotalLength 2 003Bh
4 bNumInterfaces 1 02h
5 bConfigurationValue 1 01h
6 iConfiguration 1 00h
7 bmAttributes 1 A0h Bus Powered, Remote Wakeup
4..0: Reserved ...00000 
5: Remote Wakeup ..1.....  Yes
6: Self Powered .0......  No, Bus Powered
7: Reserved (set to one)
(bus-powered for 1.0)		 1....... 
8 bMaxPower 1 32h 100 mA
Interface Descriptor 0/0 HID, 1 Endpoint
OffsetFieldSizeValueDescription
0 bLength 1 09h
1 bDescriptorType 1 04h Interface
2 bInterfaceNumber 1 00h
3 bAlternateSetting 1 00h
4 bNumEndpoints 1 01h
5 bInterfaceClass 1 03h HID
6 bInterfaceSubClass 1 01h Boot Interface
7 bInterfaceProtocol 1 01h Keyboard
8 iInterface 1 00h
HID Descriptor
OffsetFieldSizeValueDescription
0 bLength 1 09h
1 bDescriptorType 1 21h HID
2 bcdHID 2 0110h 1.10
4 bCountryCode 1 00h
5 bNumDescriptors 1 01h
6 bDescriptorType 1 22h Report
7 wDescriptorLength 2 0040h 64 bytes
Endpoint Descriptor 81 1 In, Interrupt, 10 ms
OffsetFieldSizeValueDescription
0 bLength 1 07h
1 bDescriptorType 1 05h Endpoint
2 bEndpointAddress 1 81h 1 In
3 bmAttributes 1 03h Interrupt
1..0: Transfer Type ......11  Interrupt
7..2: Reserved 000000.. 
4 wMaxPacketSize 2 0008h 8 bytes
6 bInterval 1 0Ah 10 ms
Interface Descriptor 1/0 HID, 1 Endpoint
OffsetFieldSizeValueDescription
0 bLength 1 09h
1 bDescriptorType 1 04h Interface
2 bInterfaceNumber 1 01h
3 bAlternateSetting 1 00h
4 bNumEndpoints 1 01h
5 bInterfaceClass 1 03h HID
6 bInterfaceSubClass 1 00h
7 bInterfaceProtocol 1 00h
8 iInterface 1 00h
HID Descriptor
OffsetFieldSizeValueDescription
0 bLength 1 09h
1 bDescriptorType 1 21h HID
2 bcdHID 2 0110h 1.10
4 bCountryCode 1 00h
5 bNumDescriptors 1 01h
6 bDescriptorType 1 22h Report
7 wDescriptorLength 2 0051h 81 bytes
Endpoint Descriptor 82 2 In, Interrupt, 10 ms
OffsetFieldSizeValueDescription
0 bLength 1 07h
1 bDescriptorType 1 05h Endpoint
2 bEndpointAddress 1 82h 2 In
3 bmAttributes 1 03h Interrupt
1..0: Transfer Type ......11  Interrupt
7..2: Reserved 000000.. 
4 wMaxPacketSize 2 0008h 8 bytes
6 bInterval 1 0Ah 10 ms
Interface 0 HID Report Descriptor Keyboard
Item Tag (Value) Raw Data
Usage Page (Generic Desktop) 05 01 
Usage (Keyboard) 09 06 
Collection (Application) A1 01 
    Usage Page (Keyboard/Keypad) 05 07 
    Usage Minimum (Keyboard Left Control) 19 E0 
    Usage Maximum (Keyboard Right GUI) 29 E7 
    Logical Minimum (0) 15 00 
    Logical Maximum (1) 25 01 
    Report Size (1) 75 01 
    Report Count (8) 95 08 
    Input (Data,Var,Abs,NWrp,Lin,Pref,NNul,Bit) 81 02 
    Report Count (1) 95 01 
    Report Size (8) 75 08 
    Input (Cnst,Ary,Abs) 81 01 
    Report Count (5) 95 05 
    Report Size (1) 75 01 
    Usage Page (LEDs) 05 08 
    Usage Minimum (Num Lock) 19 01 
    Usage Maximum (Kana) 29 05 
    Output (Data,Var,Abs,NWrp,Lin,Pref,NNul,NVol,Bit) 91 02 
    Report Count (1) 95 01 
    Report Size (3) 75 03 
    Output (Cnst,Ary,Abs,NWrp,Lin,Pref,NNul,NVol,Bit) 91 01 
    Report Count (6) 95 06 
    Report Size (8) 75 08 
    Logical Minimum (0) 15 00 
    Logical Maximum (151) 26 97 00 
    Usage Page (Keyboard/Keypad) 05 07 
    Usage Minimum (Undefined) 19 00 
    Usage Maximum (Keyboard LANG8) 29 97 
    Input (Data,Ary,Abs) 81 00 
End Collection C0 
Interface 1 HID Report Descriptor Consumer Control
Item Tag (Value) Raw Data
Usage Page (Consumer Devices) 05 0C 
Usage (Consumer Control) 09 01 
Collection (Application) A1 01 
    Report ID (1) 85 01 
    Usage Page (Consumer Devices) 05 0C 
    Logical Minimum (0) 15 00 
    Logical Maximum (1) 25 01 
    Report Size (1) 75 01 
    Report Count (7) 95 07 
    Usage (Scan Next Track) 09 B5 
    Usage (Scan Previous Track) 09 B6 
    Usage (Stop) 09 B7 
    Usage (Play/Pause) 09 CD 
    Usage (Mute) 09 E2 
    Usage (Volume Increment) 09 E9 
    Usage (Volume Decrement) 09 EA 
    Input (Data,Var,Abs,NWrp,Lin,Pref,NNul,Bit) 81 02 
    Report Count (1) 95 01 
    Input (Cnst,Ary,Abs) 81 01 
End Collection C0 
Usage Page (Vendor-Defined 1) 06 00 FF 
Usage (Vendor-Defined 1) 09 01 
Collection (Application) A1 01 
    Usage Page (Vendor-Defined 1) 06 00 FF 
    Usage (Vendor-Defined 1) 09 01 
    Logical Maximum (255) 26 FF 00 
    Report Size (8) 75 08 
    Report Count (7) 95 07 
    Report ID (2) 85 02 
    Input (Data,Var,Abs,NWrp,Lin,Pref,NNul,Bit) 81 02 
    Report Count (1) 95 01 
    Usage (Vendor-Defined 2) 09 02 
    Report ID (3) 85 03 
    Input (Data,Var,Abs,NWrp,Lin,Pref,NNul,Bit) 81 02 
    Usage (Vendor-Defined 3) 09 03 
    Feature (Data,Var,Abs,NWrp,Lin,Pref,NNul,NVol,Bit) B1 02 
    Usage (Vendor-Defined 15) 09 0F 
    Report Count (20) 95 14 
    Output (Data,Var,Abs,NWrp,Lin,Pref,NNul,NVol,Bit) 91 02 
End Collection C0 

This report was generated by USBlyzer