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menuconfig LEDS_TRIGGERS
bool "LED Trigger support"
depends on LEDS_CLASS
help
This option enables trigger support for the leds class.
These triggers allow kernel events to drive the LEDs and can
be configured via sysfs. If unsure, say Y.
if LEDS_TRIGGERS
config LEDS_TRIGGER_TIMER
tristate "LED Timer Trigger"
depends on LEDS_TRIGGERS
help
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.txt.
If unsure, say Y.
config LEDS_TRIGGER_ONESHOT
tristate "LED One-shot Trigger"
depends on LEDS_TRIGGERS
help
This allows LEDs to blink in one-shot pulses with parameters
controlled via sysfs. It's useful to notify the user on
sporadic events, when there are no clear begin and end trap points,
or on dense events, where this blinks the LED at constant rate if
rearmed continuously.
It also shows how to use the led_blink_set_oneshot() function.
If unsure, say Y.
config LEDS_TRIGGER_IDE_DISK
bool "LED IDE Disk Trigger"
depends on IDE_GD_ATA
depends on LEDS_TRIGGERS
help
This allows LEDs to be controlled by IDE disk activity.
If unsure, say Y.
config LEDS_TRIGGER_HEARTBEAT
tristate "LED Heartbeat Trigger"
depends on 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.
config LEDS_TRIGGER_BACKLIGHT
tristate "LED backlight Trigger"
depends on LEDS_TRIGGERS
help
This allows LEDs to be controlled as a backlight device: they
turn off and on when the display is blanked and unblanked.
If unsure, say N.
config LEDS_TRIGGER_CPU
bool "LED CPU Trigger"
depends on LEDS_TRIGGERS && !PREEMPT_RT_BASE
help
This allows LEDs to be controlled by active CPUs. This shows
the active CPUs across an array of LEDs so you can see which
CPUs are active on the system at any given moment.
If unsure, say N.
config LEDS_TRIGGER_GPIO
tristate "LED GPIO Trigger"
depends on LEDS_TRIGGERS
depends on GPIOLIB || COMPILE_TEST
help
This allows LEDs to be controlled by gpio events. It's good
when using gpios as switches and triggering the needed LEDs
from there. One use case is n810's keypad LEDs that could
be triggered by this trigger when user slides up to show
keypad.
If unsure, say N.
config LEDS_TRIGGER_DEFAULT_ON
tristate "LED Default ON Trigger"
depends on LEDS_TRIGGERS
help
This allows LEDs to be initialised in the ON state.
If unsure, say Y.
comment "iptables trigger is under Netfilter config (LED target)"
depends on LEDS_TRIGGERS
config LEDS_TRIGGER_TRANSIENT
tristate "LED Transient Trigger"
depends on LEDS_TRIGGERS
help
This allows one time activation of a transient state on
GPIO/PWM based hardware.
If unsure, say Y.
config LEDS_TRIGGER_CAMERA
tristate "LED Camera Flash/Torch Trigger"
depends on LEDS_TRIGGERS
help
This allows LEDs to be controlled as a camera flash/torch device.
This enables direct flash/torch on/off by the driver, kernel space.
If unsure, say Y.
endif # LEDS_TRIGGERS
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