4 Say Y to enable Linux LED support. This allows control of supported
5 LEDs from both userspace and optionally, by kernel events (triggers).
7 This is not related to standard keyboard LEDs which are controlled
11 bool "LED Class Support"
14 This option enables the led sysfs class in /sys/class/leds. You'll
15 need this to do anything useful with LEDs. If unsure, say N.
17 config LEDS_GPIO_REGISTER
20 This option provides the function gpio_led_register_device.
21 As this function is used by arch code it must not be compiled as a
29 tristate "LED Support for Marvell 88PM860x PMIC"
31 depends on MFD_88PM860X
33 This option enables support for on-chip LED drivers found on Marvell
34 Semiconductor 88PM8606 PMIC.
37 tristate "LED Support using Atmel PWM outputs"
41 This option enables support for LEDs driven using outputs
42 of the dedicated PWM controller found on newer Atmel SOCs.
45 tristate "LCD Backlight driver for LM3530"
49 This option enables support for the LCD backlight using
50 LM3530 ambient light sensor chip. This ALS chip can be
51 controlled manually or using PWM input or using ambient
55 tristate "LED Support for Locomo device"
57 depends on SHARP_LOCOMO
59 This option enables support for the LEDs on Sharp Locomo.
60 Zaurus models SL-5500 and SL-5600.
62 config LEDS_MIKROTIK_RB532
63 tristate "LED Support for Mikrotik Routerboard 532"
65 depends on MIKROTIK_RB532
67 This option enables support for the so called "User LED" of
68 Mikrotik's Routerboard 532.
71 tristate "LED Support for Samsung S3C24XX GPIO LEDs"
73 depends on ARCH_S3C2410
75 This option enables support for LEDs connected to GPIO lines
76 on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440.
79 tristate "LED Support for the Amstrad Delta (E3)"
81 depends on MACH_AMS_DELTA
83 This option enables support for the LEDs on Amstrad Delta (E3).
86 tristate "LED Support for Soekris net48xx series Error LED"
88 depends on SCx200_GPIO
90 This option enables support for the Soekris net4801 and net4826 error
94 tristate "LED Support for Soekris net5501 series Error LED"
95 depends on LEDS_TRIGGERS
96 depends on X86 && LEDS_GPIO_PLATFORM && GPIO_CS5535
97 select LEDS_TRIGGER_DEFAULT_ON
100 Add support for the Soekris net5501 board (detection, error led
104 tristate "LED Support for the Freecom FSG-3"
105 depends on LEDS_CLASS
108 This option enables support for the LEDs on the Freecom FSG-3.
111 tristate "LED Support for the WRAP series LEDs"
112 depends on LEDS_CLASS
113 depends on SCx200_GPIO
115 This option enables support for the PCEngines WRAP programmable LEDs.
118 tristate "LED Support for ALIX.2 and ALIX.3 series"
119 depends on LEDS_CLASS
120 depends on X86 && !GPIO_CS5535 && !CS5535_GPIO
122 This option enables support for the PCEngines ALIX.2 and ALIX.3 LEDs.
123 You have to set leds-alix2.force=1 for boards with Award BIOS.
125 config LEDS_COBALT_QUBE
126 tristate "LED Support for the Cobalt Qube series front LED"
127 depends on LEDS_CLASS
128 depends on MIPS_COBALT
130 This option enables support for the front LED on Cobalt Qube series
132 config LEDS_COBALT_RAQ
133 bool "LED Support for the Cobalt Raq series"
134 depends on LEDS_CLASS=y && MIPS_COBALT
137 This option enables support for the Cobalt Raq series LEDs.
140 tristate "LED support for SunFire servers."
141 depends on LEDS_CLASS
145 This option enables support for the Left, Middle, and Right
146 LEDs on the I/O and CPU boards of SunFire UltraSPARC servers.
149 tristate "LED Support for the HP Jornada 6xx"
150 depends on LEDS_CLASS
153 This option enables LED support for the handheld
154 HP Jornada 620/660/680/690.
157 tristate "LED driver for PCA9532 dimmer"
158 depends on LEDS_CLASS
159 depends on I2C && INPUT && EXPERIMENTAL
161 This option enables support for NXP pca9532
162 LED controller. It is generally only useful
165 config LEDS_PCA9532_GPIO
166 bool "Enable GPIO support for PCA9532"
167 depends on LEDS_PCA9532
170 Allow unused pins on PCA9532 to be used as gpio.
172 To use a pin as gpio pca9532_type in pca9532_platform data needs to
173 set to PCA9532_TYPE_GPIO.
176 tristate "LED Support for GPIO connected LEDs"
177 depends on LEDS_CLASS
178 depends on GENERIC_GPIO
180 This option enables support for the LEDs connected to GPIO
181 outputs. To be useful the particular board must have LEDs
182 and they must be connected to the GPIO lines. The LEDs must be
183 defined as platform devices and/or OpenFirmware platform devices.
184 The code to use these bindings can be selected below.
186 config LEDS_GPIO_PLATFORM
187 bool "Platform device bindings for GPIO LEDs"
191 Let the leds-gpio driver drive LEDs which have been defined as
192 platform devices. If you don't know what this means, say yes.
195 bool "OpenFirmware platform device bindings for GPIO LEDs"
196 depends on LEDS_GPIO && OF_DEVICE
199 Let the leds-gpio driver drive LEDs which have been defined as
200 of_platform devices. For instance, LEDs which are listed in a "dts"
204 tristate "LED Support for N.S. LP3944 (Fun Light) I2C chip"
205 depends on LEDS_CLASS
208 This option enables support for LEDs connected to the National
209 Semiconductor LP3944 Lighting Management Unit (LMU) also known as
212 To compile this driver as a module, choose M here: the
213 module will be called leds-lp3944.
216 tristate "LED Support for N.S. LP5521 LED driver chip"
217 depends on LEDS_CLASS && I2C
219 If you say yes here you get support for the National Semiconductor
220 LP5521 LED driver. It is 3 channel chip with programmable engines.
221 Driver provides direct control via LED class and interface for
222 programming the engines.
225 tristate "LED Support for N.S. LP5523 LED driver chip"
226 depends on LEDS_CLASS && I2C
228 If you say yes here you get support for the National Semiconductor
229 LP5523 LED driver. It is 9 channel chip with programmable engines.
230 Driver provides direct control via LED class and interface for
231 programming the engines.
233 config LEDS_CLEVO_MAIL
234 tristate "Mail LED on Clevo notebook"
235 depends on LEDS_CLASS
236 depends on X86 && SERIO_I8042 && DMI
238 This driver makes the mail LED accessible from userspace
239 programs through the leds subsystem. This LED have three
240 known mode: off, blink at 0.5Hz and blink at 1Hz.
242 The driver supports two kinds of interface: using ledtrig-timer
243 or through /sys/class/leds/clevo::mail/brightness. As this LED
244 cannot change it's brightness it blinks instead. The brightness
245 value 0 means off, 1..127 means blink at 0.5Hz and 128..255 means
248 This module can drive the mail LED for the following notebooks:
253 Clevo D400V/D470V (not tested, but might work)
255 Clevo M5x0N (not tested, but might work)
256 Positivo Mobile (Clevo M5x0V)
258 If your model is not listed here you can try the "nodetect"
261 To compile this driver as a module, choose M here: the
262 module will be called leds-clevo-mail.
265 tristate "LED Support for PCA955x I2C chips"
266 depends on LEDS_CLASS
269 This option enables support for LEDs connected to PCA955x
270 LED driver chips accessed via the I2C bus. Supported
271 devices include PCA9550, PCA9551, PCA9552, and PCA9553.
273 config LEDS_WM831X_STATUS
274 tristate "LED support for status LEDs on WM831x PMICs"
275 depends on LEDS_CLASS
276 depends on MFD_WM831X
278 This option enables support for the status LEDs of the WM831x
282 tristate "LED Support for WM8350 AudioPlus PMIC"
283 depends on LEDS_CLASS
284 depends on MFD_WM8350
286 This option enables support for LEDs driven by the Wolfson
287 Microelectronics WM8350 AudioPlus PMIC.
290 tristate "LED Support for DA9030/DA9034 PMIC"
291 depends on LEDS_CLASS
292 depends on PMIC_DA903X
294 This option enables support for on-chip LED drivers found
295 on Dialog Semiconductor DA9030/DA9034 PMICs.
297 config LEDS_DAC124S085
298 tristate "LED Support for DAC124S085 SPI DAC"
299 depends on LEDS_CLASS
302 This option enables support for DAC124S085 SPI DAC from NatSemi,
303 which can be used to control up to four LEDs.
306 tristate "PWM driven LED Support"
307 depends on LEDS_CLASS
310 This option enables support for pwm driven LEDs
312 config LEDS_REGULATOR
313 tristate "REGULATOR driven LED support"
314 depends on LEDS_CLASS
317 This option enables support for regulator driven LEDs.
320 tristate "LED driver for BD2802 RGB LED"
321 depends on LEDS_CLASS
324 This option enables support for BD2802GU RGB LED driver chips
325 accessed via the I2C bus.
327 config LEDS_INTEL_SS4200
328 tristate "LED driver for Intel NAS SS4200 series"
329 depends on LEDS_CLASS
330 depends on PCI && DMI
332 This option enables support for the Intel SS4200 series of
333 Network Attached Storage servers. You may control the hard
334 drive or power LEDs on the front panel. Using this driver
335 can stop the front LED from blinking after startup.
338 tristate "LED driver for LT3593 controllers"
339 depends on LEDS_CLASS
340 depends on GENERIC_GPIO
342 This option enables support for LEDs driven by a Linear Technology
343 LT3593 controller. This controller uses a special one-wire pulse
344 coding protocol to set the brightness.
347 tristate "LED Support for ADP5520/ADP5501 PMIC"
348 depends on LEDS_CLASS
349 depends on PMIC_ADP5520
351 This option enables support for on-chip LED drivers found
352 on Analog Devices ADP5520/ADP5501 PMICs.
354 To compile this driver as a module, choose M here: the module will
355 be called leds-adp5520.
357 config LEDS_DELL_NETBOOKS
358 tristate "External LED on Dell Business Netbooks"
359 depends on LEDS_CLASS
360 depends on X86 && ACPI_WMI
362 This adds support for the Latitude 2100 and similar
363 notebooks that have an external LED.
366 tristate "LED Support for MC13783 PMIC"
367 depends on LEDS_CLASS
368 depends on MFD_MC13783
370 This option enable support for on-chip LED drivers found
371 on Freescale Semiconductor MC13783 PMIC.
374 tristate "LED support for Network Space v2 GPIO LEDs"
375 depends on LEDS_CLASS
376 depends on MACH_NETSPACE_V2 || MACH_INETSPACE_V2 || MACH_NETSPACE_MAX_V2 || D2NET_V2
379 This option enable support for the dual-GPIO LED found on the
380 Network Space v2 board (and parents). This include Internet Space v2,
381 Network Space (Max) v2 and d2 Network v2 boards.
384 tristate "LED support for Big Network series LEDs"
385 depends on MACH_NET2BIG_V2 || MACH_NET5BIG_V2
388 This option enable support for LEDs found on the LaCie 2Big
389 and 5Big Network v2 boards. The LEDs are wired to a CPLD and are
390 controlled through a GPIO extension bus.
393 bool "LED support for the HTC ASIC3"
397 This option enables support for the LEDs on the HTC ASIC3. The HTC
398 ASIC3 LED GPIOs are inputs, not outputs, thus the leds-gpio driver
399 cannot be used. This driver supports hardware blinking with an on+off
400 period from 62ms to 125s. Say Y to enable LEDs on the HP iPAQ hx4700.
403 bool "LED Trigger support"
404 depends on LEDS_CLASS
406 This option enables trigger support for the leds class.
407 These triggers allow kernel events to drive the LEDs and can
408 be configured via sysfs. If unsure, say Y.
410 comment "LED Triggers"
412 config LEDS_TRIGGER_TIMER
413 tristate "LED Timer Trigger"
414 depends on LEDS_TRIGGERS
416 This allows LEDs to be controlled by a programmable timer
417 via sysfs. Some LED hardware can be programmed to start
418 blinking the LED without any further software interaction.
419 For more details read Documentation/leds-class.txt.
423 config LEDS_TRIGGER_IDE_DISK
424 bool "LED IDE Disk Trigger"
425 depends on IDE_GD_ATA
426 depends on LEDS_TRIGGERS
428 This allows LEDs to be controlled by IDE disk activity.
431 config LEDS_TRIGGER_HEARTBEAT
432 tristate "LED Heartbeat Trigger"
433 depends on LEDS_TRIGGERS
435 This allows LEDs to be controlled by a CPU load average.
436 The flash frequency is a hyperbolic function of the 1-minute
440 config LEDS_TRIGGER_BACKLIGHT
441 tristate "LED backlight Trigger"
442 depends on LEDS_TRIGGERS
444 This allows LEDs to be controlled as a backlight device: they
445 turn off and on when the display is blanked and unblanked.
449 config LEDS_TRIGGER_GPIO
450 tristate "LED GPIO Trigger"
451 depends on LEDS_TRIGGERS
454 This allows LEDs to be controlled by gpio events. It's good
455 when using gpios as switches and triggering the needed LEDs
456 from there. One use case is n810's keypad LEDs that could
457 be triggered by this trigger when user slides up to show
462 config LEDS_TRIGGER_DEFAULT_ON
463 tristate "LED Default ON Trigger"
464 depends on LEDS_TRIGGERS
466 This allows LEDs to be initialised in the ON state.
469 comment "iptables trigger is under Netfilter config (LED target)"
470 depends on LEDS_TRIGGERS