[PATCH] LED: add LED heartbeat trigger
Add an LED trigger acts like a heart beat. This can be used as a
replacement of CONFIG_HEARTBEAT code exists in some arch's timer code.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Acked-by: Richard Purdie <rpurdie@rpsys.net>
Cc: "Nish Aravamudan" <nish.aravamudan@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index f573d5a..9650998 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -93,5 +93,14 @@
This allows LEDs to be controlled by IDE disk activity.
If unsure, say Y.
+config LEDS_TRIGGER_HEARTBEAT
+ tristate "LED Heartbeat Trigger"
+ depends LEDS_TRIGGERS
+ help
+ This allows LEDs to be controlled by a CPU load average.
+ The flash frequency is a hyperbolic function of the 1-minute
+ load average.
+ If unsure, say Y.
+
endmenu