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Application Note - OWL User Module - SerialStats - Knowledgebase / Products / OWL / User Modules - Hirschmann Support Center

Application Note - OWL User Module - SerialStats

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User Module Description

The user module “SerialStats” allows you to easily and visually inspect advanced serial port statistics. It is based on the “TCIOCGICOUNT” Linux kernel ioctl. It displays the interrupts the Expansion Port 1 and Expansion Port 2 receives during operation.

Note: Both 1 to 0 and 0 to 1 transitions are counted, except for RI, where only 0 to 1 transitions are counted.

Value

Description

CTS

Interrupts on Clear to Send line

DSR

Interrupts on Data Set Ready line

RNG

Interrupts on the Ring Indicator line

DCD

Interrupts on the Data Carrier Detect line

This module only displays meaningful statistics as long as another application accesses the Expansion Ports. If they are not being used the statistics will reset to zero.