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DFU Device Descriptor
| Offset |
Field |
Size |
Value |
Descripton
|
| 0 |
bLength |
1 |
12h |
Size of this descriptor,in bytes.
|
| 1 |
bDescriptorType |
1 |
01h |
DEVICE descriptor type.
|
| 2 |
bcdUSB |
2 |
0100h |
USB specification release number in binary coded decimal.
|
| 4 |
bDeviceClass |
1 |
00h |
See interface.
|
| 5 |
bDeviceSubClass |
1 |
00h |
See interface
|
| 6 |
bDeviceProtocol |
1 |
00h |
See interface.
|
| 7 |
bMaxPacketSize0 |
1 |
8,16,32,64 |
Maximum packet size for endpoint.
|
| 8 |
idVendor |
2 |
ID |
Vendor ID. Assigned by the USB-IF.
|
| 10 |
idProduct |
2 |
ID |
Product ID. Assigned by manufacturer.
|
| 12 |
bcdDevice |
2 |
BCD |
Device release number in binary coded decimal.
|
| 14 |
iManufacturer |
1 |
index |
index of string descriptor.
|
| 15 |
iProduct |
1 |
index |
index of string descriptor.
|
| 16 |
iSerialNumber |
1 |
index |
index of string descriptor.
|
| 17 |
bNumConfigurations |
1 |
01h |
One configuration only for DFU.
|