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Kim, Milof07fb522013-02-20 00:36:01 -08001menuconfig 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
9if LEDS_TRIGGERS
10
11config 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
22config 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
36config 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
44config 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
53config 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
62config 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
72config 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
85config 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
92comment "iptables trigger is under Netfilter config (LED target)"
93 depends on LEDS_TRIGGERS
94
95config 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
103endif # LEDS_TRIGGERS