LeCroy Advisor, User Manual

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Chapter 6: Reading a Trace USB Advisor User Manual
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LeCroy Corporation
6.24 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 > Show PTP Session .
OR
• Select Setup > Display Options to display the Display Options window,
check PTP Session , and then click OK.