File: //lib/udev/rules.d/71-power-switch-proliant.rules
ACTION!="remove", SUBSYSTEM=="input", KERNEL=="event*", SUBSYSTEMS=="platform", KERNELS=="gpio_keys.6|soc:gpio_keys", PROGRAM="/bin/cat /proc/device-tree/model", RESULT=="HP ProLiant m400 Server Cartridge", TAG+="power-switch"
ACTION!="remove", SUBSYSTEM=="input", KERNEL=="event*", SUBSYSTEMS=="platform", KERNELS=="gpio_keys.12", ATTRS{keys}=="116", PROGRAM="/bin/cat /proc/device-tree/model", RESULT=="HP ProLiant m800 Server Cartridge", TAG+="power-switch"