Teledyne LeCroy USB Protocol Suite User Manual (Voyager_Advisor T3_Mercury) - Manual (Page 140)

Teledyne LeCroy Corporation Switch to PTP Sessions
140 USB Protocol Suite User Manual
PTP Transactions that involve a single Asynchronous Event sent through the interrupt
pipe.
The PTP Object Transfer trace viewing level is the middle PTP level.
To view PTP object transfers, switch to the PTP Object Transfer trace viewing level:
 Click on the toolbar.
OR
 Select View > PTP Group > PTP Object Level.
OR
 Select Setup > Display Options to display the Display Options window, check PTP
Object, and then click OK.
5.34 Switch to PTP Sessions
A session is a state of persisting communication between a device and a host during
which the connection is continuous and the login and other communication parameters
do not change. A session begins with an OpenSession operation, which establishes the
communications connection and parameters, and ends with a CloseSession operation.
A session contains all object transfers (and their transactions), plus all transactions that
do not belong to object transfers, between an OpenSession operation and a CloseSession
operation. For PTP, all PTP Object Transfers and all PTP Transactions that occur from the
OpenSession operation to the CloseSession operation is a single PTP Session.
The PTP Session trace viewing level is the highest PTP level.
To view PTP sessions, switch to the PTP Session trace viewing level:
 Click on the toolbar.
OR
 Select View > PTP Group > PTP Session Level.
OR
 Select Setup > Display Options to display the Display Options window, check PTP
Session, and then click OK.