Table 6-20: Bulk Only Transport Device Descriptor; Table 6-21: Example Serial Number Format - Seagate M8U-Internal SpinPoint Product Manual

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Table 6-20: Bulk Only Transport Device Descriptor

The iSerialNumber field shall be set to the index of the string descriptor that contains the serial number. The

serial number shall contain at least 12 valid digits, represented as a UNICODE string. The last 12 digits of the

serial number shall be unique to each USB idVendor and idProduct pair.

The host may generate a globally unique identifier by concatenating the 16 bit idVendor, the 16 bit idProduct

and the value represented by the last 12 characters of the string descriptor indexed by iSerialNumber. The

field iSerialNumber is an index to a string descriptor and does not contain the string itself. An example

format for the String descriptor is shown below. (Table 6-21)

Spinpoint M8U-Internal Product Manual REV 3.4

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