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Linux/drivers/leds/trigger/Kconfig

  1 menuconfig LEDS_TRIGGERS
  2         bool "LED Trigger support"
  3         depends on LEDS_CLASS
  4         help
  5           This option enables trigger support for the leds class.
  6           These triggers allow kernel events to drive the LEDs and can
  7           be configured via sysfs. If unsure, say Y.
  8 
  9 if LEDS_TRIGGERS
 10 
 11 config LEDS_TRIGGER_TIMER
 12         tristate "LED Timer Trigger"
 13         depends on LEDS_TRIGGERS
 14         help
 15           This allows LEDs to be controlled by a programmable timer
 16           via sysfs. Some LED hardware can be programmed to start
 17           blinking the LED without any further software interaction.
 18           For more details read Documentation/leds/leds-class.txt.
 19 
 20           If unsure, say Y.
 21 
 22 config LEDS_TRIGGER_ONESHOT
 23         tristate "LED One-shot Trigger"
 24         depends on LEDS_TRIGGERS
 25         help
 26           This allows LEDs to blink in one-shot pulses with parameters
 27           controlled via sysfs.  It's useful to notify the user on
 28           sporadic events, when there are no clear begin and end trap points,
 29           or on dense events, where this blinks the LED at constant rate if
 30           rearmed continuously.
 31 
 32           It also shows how to use the led_blink_set_oneshot() function.
 33 
 34           If unsure, say Y.
 35 
 36 config LEDS_TRIGGER_IDE_DISK
 37         bool "LED IDE Disk Trigger"
 38         depends on IDE_GD_ATA
 39         depends on LEDS_TRIGGERS
 40         help
 41           This allows LEDs to be controlled by IDE disk activity.
 42           If unsure, say Y.
 43 
 44 config LEDS_TRIGGER_HEARTBEAT
 45         tristate "LED Heartbeat Trigger"
 46         depends on LEDS_TRIGGERS
 47         help
 48           This allows LEDs to be controlled by a CPU load average.
 49           The flash frequency is a hyperbolic function of the 1-minute
 50           load average.
 51           If unsure, say Y.
 52 
 53 config LEDS_TRIGGER_BACKLIGHT
 54         tristate "LED backlight Trigger"
 55         depends on LEDS_TRIGGERS
 56         help
 57           This allows LEDs to be controlled as a backlight device: they
 58           turn off and on when the display is blanked and unblanked.
 59 
 60           If unsure, say N.
 61 
 62 config LEDS_TRIGGER_CPU
 63         bool "LED CPU Trigger"
 64         depends on LEDS_TRIGGERS
 65         help
 66           This allows LEDs to be controlled by active CPUs. This shows
 67           the active CPUs across an array of LEDs so you can see which
 68           CPUs are active on the system at any given moment.
 69 
 70           If unsure, say N.
 71 
 72 config LEDS_TRIGGER_GPIO
 73         tristate "LED GPIO Trigger"
 74         depends on LEDS_TRIGGERS
 75         depends on GPIOLIB
 76         help
 77           This allows LEDs to be controlled by gpio events. It's good
 78           when using gpios as switches and triggering the needed LEDs
 79           from there. One use case is n810's keypad LEDs that could
 80           be triggered by this trigger when user slides up to show
 81           keypad.
 82 
 83           If unsure, say N.
 84 
 85 config LEDS_TRIGGER_DEFAULT_ON
 86         tristate "LED Default ON Trigger"
 87         depends on LEDS_TRIGGERS
 88         help
 89           This allows LEDs to be initialised in the ON state.
 90           If unsure, say Y.
 91 
 92 comment "iptables trigger is under Netfilter config (LED target)"
 93         depends on LEDS_TRIGGERS
 94 
 95 config LEDS_TRIGGER_TRANSIENT
 96         tristate "LED Transient Trigger"
 97         depends on LEDS_TRIGGERS
 98         help
 99           This allows one time activation of a transient state on
100           GPIO/PWM based hardware.
101           If unsure, say Y.
102 
103 config LEDS_TRIGGER_CAMERA
104         tristate "LED Camera Flash/Torch Trigger"
105         depends on LEDS_TRIGGERS
106         help
107           This allows LEDs to be controlled as a camera flash/torch device.
108           This enables direct flash/torch on/off by the driver, kernel space.
109           If unsure, say Y.
110 
111 endif # LEDS_TRIGGERS

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