LED Timer Trigger

modulename: ledtrig-timer.ko

configname: CONFIG_LEDS_TRIGGER_TIMER

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>LED Trigger support
└─>LED Timer Trigger
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
This allows LEDs to be controlled by a programmable timer
via sysfs. Some LED hardware can be programmed to start
blinking the LED without any further software interaction.
For more details read Documentation/leds/leds-class.rst.

If unsure, say Y.

source code: