Host (pci/usb) port. Over view. Host Port Selection. Configuration Spaces. PCI Configuration Space, страница 20

Offset	Field	Description	Value
0	bLength	Length = 18 bytes	12H
1	bDescriptorType	Type = DEVICE	01H
2 - 3	bcdUSB	USB Specification 1.1	0110H
4	bDeviceClass	Device class vendor specific	FFH
5	bDeviceSubClass	Device sub-class vendor specific	FFH
6	bDeviceProtocol	Device protocol vendor specific	FFH
7	bMaxPacketSize	Maximum packet size for EP0 = 8 bytes	08H
8 - 9	idVendor (L)	Vendor ID (L) = 0456 ADI	0456H
10 - 11	idProduct (L)	Product ID (L) = ADSP-2192	2192H
12 - 13	bcdDevice (L)	Device release number = 1.00	0100H
14	iManufacturer	Manufacturer index string	01H
15	iProduct	Product index string	02H

Table 8-22. CONFIG DEVICE Device Descriptor (Continued)

! Offset fields in bold can be overwritten by the Serial EEPROM

Table 8-23. CONFIG DEVICE Interface Descriptor

Offset	Field	Description	Value
0	bLength	Descriptor Length = 9 bytes	09H
1	bDescriptorType	Descriptor Type = Interface	04H
2	bInterfaceNumber	Number of Interface = 0	00H
3	bAlternateSetting	Alternate Setting = 0	00H
4	bNumEndpoints	Number of Endpoints = 0	00H
5	bInterfaceClass	Interface class vendor specific	FFH
6	bInterfaceSubClass	Interface sub-class vendor specific	FFH
7	bInterfaceProtocol	Interface protocol vendor specific	FFH
8	iInterface	Interface Index String	00H

Table 8-24. CONFIG DEVICE String Descriptor Index 0

Table 8-25. CONFIG DEVICE String Descriptor Index 1 (Manufacturer)

Table 8-26. CONFIG DEVICE String Descriptor Index 2 (Product)

V e nd or-Sp e c ific C om m a nd s