- Why I did it
when reading sysfs fd upon python poller events, there's end of line garbage like "# 012" (without space between the 2 parts) trailing the real value of 1 or 0
- How I did it
using python strip() to remove end of line
- How to verify it
run the CMIS host management feature on a switch
wait few minutes until switch completes boot up sequence including CMIS host manager
then disconnect or reconnect a port to create a poller event