Note
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This is the standard USB device descriptor, and the format is shown in the following table.
|
Offset |
Field |
Size |
Value |
Description |
|---|---|---|---|---|
|
0 |
bLength |
1 |
Number |
Size of the descriptor |
|
1 |
bDescriptorType |
1 |
0x01 |
Device descriptor |
|
2 |
bcdUSB |
2 |
0x0200 |
USB spec 2.0 |
|
4 |
bDeviceClass |
1 |
0xFF |
Vendor Specific |
|
5 |
bDeviceSubclass |
1 |
0xFF |
Vendor Specific |
|
6 |
bDeviceProtocol |
1 |
0xFF |
Vendor Specific |
|
7 |
bMaxPacketSize |
1 |
0x08 |
8-byte data payload size |
|
8 |
idVendor |
2 |
0x045E |
Microsoft |
|
10 |
idProduct |
2 |
0x0291 |
MS Product ID |
|
12 |
bcdDevice |
2 |
BCD |
Device release version |
|
14 |
iManufacturer |
1 |
0x00 |
Manufacturer string descriptor |
|
15 |
iProduct |
1 |
0x00 |
Product string descriptor |
|
16 |
iSerial |
1 |
0x00 |
Serial string descriptor |
|
17 |
bNumConfigure |
1 |
0x01 |
Number of configurations: 1 |
Table 22: XUSB standard device descriptor