meta-gbs/recipes-phosphor/gpio/phosphor-gpio-monitor/obmc/gpio/gpios-2.conf

#The gpio 72 is a real gpio, which is used to
#store the sas cable 2 present signal
INVENTORY=/system/chassis/cable/ss_cab2_prsnt
DEVPATH=/dev/input/event0
KEY=72
NAME=ss_cab2_prsnt