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174 lines
5.1 KiB
174 lines
5.1 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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menuconfig LEDS_TRIGGERS |
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bool "LED Trigger support" |
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depends on LEDS_CLASS |
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help |
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This option enables trigger support for the leds class. |
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These triggers allow kernel events to drive the LEDs and can |
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be configured via sysfs. If unsure, say Y. |
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if LEDS_TRIGGERS |
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config LEDS_TRIGGER_TIMER |
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tristate "LED Timer Trigger" |
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help |
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This allows LEDs to be controlled by a programmable timer |
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via sysfs. Some LED hardware can be programmed to start |
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blinking the LED without any further software interaction. |
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For more details read Documentation/leds/leds-class.rst. |
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If unsure, say Y. |
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config LEDS_TRIGGER_ONESHOT |
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tristate "LED One-shot Trigger" |
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help |
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This allows LEDs to blink in one-shot pulses with parameters |
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controlled via sysfs. It's useful to notify the user on |
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sporadic events, when there are no clear begin and end trap points, |
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or on dense events, where this blinks the LED at constant rate if |
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rearmed continuously. |
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It also shows how to use the led_blink_set_oneshot() function. |
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If unsure, say Y. |
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config LEDS_TRIGGER_DISK |
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bool "LED Disk Trigger" |
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depends on IDE_GD_ATA || ATA |
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help |
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This allows LEDs to be controlled by disk activity. |
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If unsure, say Y. |
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config LEDS_TRIGGER_MTD |
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bool "LED MTD (NAND/NOR) Trigger" |
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depends on MTD |
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help |
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This allows LEDs to be controlled by MTD activity. |
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If unsure, say N. |
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config LEDS_TRIGGER_HEARTBEAT |
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tristate "LED Heartbeat Trigger" |
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help |
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This allows LEDs to be controlled by a CPU load average. |
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The flash frequency is a hyperbolic function of the 1-minute |
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load average. |
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If unsure, say Y. |
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config LEDS_TRIGGER_BACKLIGHT |
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tristate "LED backlight Trigger" |
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help |
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This allows LEDs to be controlled as a backlight device: they |
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turn off and on when the display is blanked and unblanked. |
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If unsure, say N. |
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config LEDS_TRIGGER_CPU |
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bool "LED CPU Trigger" |
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help |
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This allows LEDs to be controlled by active CPUs. This shows |
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the active CPUs across an array of LEDs so you can see which |
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CPUs are active on the system at any given moment. |
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If unsure, say N. |
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config LEDS_TRIGGER_ACTIVITY |
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tristate "LED activity Trigger" |
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help |
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This allows LEDs to be controlled by an immediate CPU usage. |
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The flash frequency and duty cycle varies from faint flashes to |
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intense brightness depending on the instant CPU load. |
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If unsure, say N. |
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config LEDS_TRIGGER_GPIO |
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tristate "LED GPIO Trigger" |
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depends on GPIOLIB || COMPILE_TEST |
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help |
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This allows LEDs to be controlled by gpio events. It's good |
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when using gpios as switches and triggering the needed LEDs |
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from there. One use case is n810's keypad LEDs that could |
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be triggered by this trigger when user slides up to show |
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keypad. |
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If unsure, say N. |
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config LEDS_TRIGGER_DEFAULT_ON |
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tristate "LED Default ON Trigger" |
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help |
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This allows LEDs to be initialised in the ON state. |
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If unsure, say Y. |
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comment "iptables trigger is under Netfilter config (LED target)" |
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depends on LEDS_TRIGGERS |
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config LEDS_TRIGGER_TRANSIENT |
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tristate "LED Transient Trigger" |
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help |
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This allows one time activation of a transient state on |
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GPIO/PWM based hardware. |
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If unsure, say Y. |
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config LEDS_TRIGGER_CAMERA |
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tristate "LED Camera Flash/Torch Trigger" |
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help |
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This allows LEDs to be controlled as a camera flash/torch device. |
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This enables direct flash/torch on/off by the driver, kernel space. |
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If unsure, say Y. |
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config LEDS_TRIGGER_INPUT |
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tristate "LED Input Trigger" |
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depends on LEDS_TRIGGERS |
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help |
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This allows the GPIOs assigned to be LEDs to be initialised to inputs. |
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If unsure, say Y. |
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config LEDS_TRIGGER_PANIC |
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bool "LED Panic Trigger" |
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help |
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This allows LEDs to be configured to blink on a kernel panic. |
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Enabling this option will allow to mark certain LEDs as panic indicators, |
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allowing to blink them on a kernel panic, even if they are set to |
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a different trigger. |
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If unsure, say Y. |
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config LEDS_TRIGGER_NETDEV |
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tristate "LED Netdev Trigger" |
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depends on NET |
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help |
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This allows LEDs to be controlled by network device activity. |
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If unsure, say Y. |
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config LEDS_TRIGGER_PATTERN |
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tristate "LED Pattern Trigger" |
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help |
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This allows LEDs to be controlled by a software or hardware pattern |
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which is a series of tuples, of brightness and duration (ms). |
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If unsure, say N |
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config LEDS_TRIGGER_AUDIO |
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tristate "Audio Mute LED Trigger" |
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help |
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This allows LEDs to be controlled by audio drivers for following |
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the audio mute and mic-mute changes. |
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If unsure, say N |
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config LEDS_TRIGGER_TTY |
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tristate "LED Trigger for TTY devices" |
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depends on TTY |
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help |
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This allows LEDs to be controlled by activity on ttys which includes |
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serial devices like /dev/ttyS0. |
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When build as a module this driver will be called ledtrig-tty. |
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config LEDS_TRIGGER_ACTPWR |
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tristate "ACT/PWR Input Trigger" |
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depends on LEDS_TRIGGERS |
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help |
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This trigger is intended for platforms that have one software- |
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controllable LED and no dedicated activity or power LEDs, hence the |
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need to make the one LED perform both functions. It cycles between |
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default-on and an inverted mmc0 every 500ms, guaranteeing that it is |
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on for at least half of the time. |
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If unsure, say N. |
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endif # LEDS_TRIGGERS
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