USB Composite Device

Connection StatusDevice connected
Current Configuration1
SpeedFull (12 Mbit/s)
Device Address1
Number Of Open Pipes2
Device Descriptor USB KB
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 40h 64 bytes
8 idVendor 2 0483h SGS Thomson Microelectronics
10 idProduct 2 5710h
12 bcdDevice 2 0202h 2.02
14 iManufacturer 1 01h "STMicroelectronics"
15 iProduct 1 02h "USB KB"
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 0111h 1.11
4 bCountryCode 1 00h
5 bNumDescriptors 1 01h
6 bDescriptorType 1 22h Report
7 wDescriptorLength 2 0041h 65 bytes
Endpoint Descriptor 81 1 In, Interrupt, 1 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 01h 1 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 0111h 1.11
4 bCountryCode 1 00h
5 bNumDescriptors 1 01h
6 bDescriptorType 1 22h Report
7 wDescriptorLength 2 004Dh 77 bytes
Endpoint Descriptor 82 2 In, Interrupt, 1 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 0010h 16 bytes
6 bInterval 1 01h 1 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 (255) 26 FF 00 
    Usage Page (Keyboard/Keypad) 05 07 
    Usage Minimum (Undefined) 19 00 
    Usage Maximum 2A FF 00 
    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 Minimum (Undefined) 19 00 
    Usage Maximum (AC Format) 2A 3C 02 
    Logical Minimum (0) 15 00 
    Logical Maximum (572) 26 3C 02 
    Report Count (1) 95 01 
    Report Size (16) 75 10 
    Input (Data,Ary,Abs) 81 00 
End Collection C0 
Usage Page (Generic Desktop) 05 01 
Usage (System Control) 09 80 
Collection (Application) A1 01 
    Report ID (2) 85 02 
    Usage Minimum (System Power Down) 19 81 
    Usage Maximum (System Wake Up) 29 83 
    Logical Minimum (0) 15 00 
    Logical Maximum (1) 25 01 
    Report Size (1) 75 01 
    Report Count (3) 95 03 
    Input (Data,Var,Abs,NWrp,Lin,Pref,NNul,Bit) 81 02 
    Report Count (5) 95 05 
    Input (Cnst,Ary,Abs) 81 01 
End Collection C0 
Usage Page (Generic Desktop) 05 01 
Usage (Keyboard) 09 06 
Collection (Application) A1 01 
    Report ID (5) 85 05 
    Usage Page (Keyboard/Keypad) 05 07 
    Logical Minimum (0) 15 00 
    Logical Maximum (1) 25 01 
    Usage Minimum (Keyboard a and A) 19 04 
    Usage Maximum (Keyboard F21) 29 70 
    Report Size (1) 75 01 
    Report Count (120) 95 78 
    Input (Data,Var,Abs,NWrp,Lin,Pref,NNul,Bit) 81 02 
End Collection C0 

This report was generated by USBlyzer