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High Speed Inter-Chip USB 2.0 Hub and Flash Media Controller
Datasheet
Revision 1.0 (06-01-09) 34 SMSC USB4640/USB4640i
DATASHEET
8.4.1.10 22h: USB Manufacturer String Descriptor Length
8.4.1.11 23h: USB Manufacturer String Descriptor Type
8.4.1.12 24h-31h: USB Manufacturer String Option
8.4.1.13 32h-5Dh: Reserved
8.4.1.14 5Eh: USB Product String Descriptor Length
8.4.1.15 5Fh: USB Product String Descriptor Type
8.4.1.16 60h-99h: USB Product String Option
BYTE NAME DESCRIPTION
0 USB_MFR_STR
_LEN
USB manufacturer string descriptor length as defined by Section 9.6.7 “String”
of the USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength”
which describes the size of the string descriptor (in bytes).
BYTE NAME DESCRIPTION
1 USB_MFR_STR
_TYP
USB manufacturer string descriptor type as defined by Section 9.6.7 “String”
of the USB 2.0 Specification (Revision 2.0, 2000). This field is the
“bDescriptorType” which is a constant value associated with a string
descriptor type.
BYTE NAME DESCRIPTION
15:2 USB_MFR_STR The maximum string length is 28 characters.
BYTE NAME DESCRIPTION
59:16 Reserved Reserved.
BYTE NAME DESCRIPTION
0 USB_PRD_STR
_LEN
USB product string descriptor length as defined by Section 9.6.7 “String” of
the USB 2.0 Specification (Revision 2.0, 2000). This field is the “bLength”
which describes the size of the string descriptor (in bytes).
BYTE NAME DESCRIPTION
1 USB_PRD_STR
_TYP
USB product string descriptor type as defined by Section 9.6.7 “String” of the
USB 2.0 Specification (Revision 2.0, 2000). This field is the
“bDescriptorType” which is a constant value associated with a string
descriptor type.
BYTE NAME DESCRIPTION
59:2 USB_PRD_STR This string will be used during the USB enumeration process in the
Windows
®
operating system. Maximum string length is 28 characters.