Event Identifiers (EIDs) for USR trace records

The event identifier (EID) in GTF trace records is a 2-byte hexadecimal number that identifies the event producing the record. You can use it to identify the product that produced the record. Table 1 shows the full 2-byte EID, but because EIDs for USR records start with an E, often unformatted USR records show just the last three numbers of the EID after the E. If you have a three number EID, such as FF5, look for EFF5 in the table.