LeCroy USB Protocol Suite Reference Manual page 25

LeCroy Corporation
5.2.1.3.11 Data Packet Members
Address of the device which is the recipient of this Data Packet
in.Addr:
Endpoint number on the device which is the recipient of this Data Packet
in.Endp:
Direction for the specified Endpoint
in.Dir:
Value of the StreamID field
in.StreamID:
Value of the Sequence Number for this Data Packett
in.SeqN:
Length of the payload for this Data Packet
in.DataLength:
in.PayloadLength:
Bit source of the packet payload for this Data Packet. (You can extract any necessary
in.Payload:
information using the GetNBits(), NextNBits(), or PeekNBits() function.)
Value of CRC32 protecting the payload for this Data Packet
in.CRC32:
Note: In USB Protocol Suite software versions earlier than 3.71 (namely, 3.60 and 3.70), Data Packet Header
and Data Packet Payload were two separate packet types with input context members split accordingly between
them. Those were combined into a single Data Packet starting with version 3.71.
Length of the payload actually recorded for this Data Packet
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