1 config LEDS_GPIO_REGISTER
4 This option provides the function gpio_led_register_device.
5 As this function is used by arch code it must not be compiled as a
11 Say Y to enable Linux LED support. This allows control of supported
12 LEDs from both userspace and optionally, by kernel events (triggers).
14 This is not related to standard keyboard LEDs which are controlled
20 tristate "LED Class Support"
22 This option enables the led sysfs class in /sys/class/leds. You'll
23 need this to do anything useful with LEDs. If unsure, say N.
28 tristate "LED Support for Marvell 88PM860x PMIC"
30 depends on MFD_88PM860X
32 This option enables support for on-chip LED drivers found on Marvell
33 Semiconductor 88PM8606 PMIC.
36 tristate "LED Support using Atmel PWM outputs"
40 This option enables support for LEDs driven using outputs
41 of the dedicated PWM controller found on newer Atmel SOCs.
44 tristate "LCD Backlight driver for LM3530"
48 This option enables support for the LCD backlight using
49 LM3530 ambient light sensor chip. This ALS chip can be
50 controlled manually or using PWM input or using ambient
54 tristate "LED support for LM3533"
58 This option enables support for the LEDs on National Semiconductor /
59 TI LM3533 Lighting Power chips.
61 The LEDs can be controlled directly, through PWM input, or by the
62 ambient-light-sensor interface. The chip supports
63 hardware-accelerated blinking with maximum on and off periods of 9.8
64 and 77 seconds respectively.
67 tristate "LED Support for Locomo device"
69 depends on SHARP_LOCOMO
71 This option enables support for the LEDs on Sharp Locomo.
72 Zaurus models SL-5500 and SL-5600.
74 config LEDS_MIKROTIK_RB532
75 tristate "LED Support for Mikrotik Routerboard 532"
77 depends on MIKROTIK_RB532
79 This option enables support for the so called "User LED" of
80 Mikrotik's Routerboard 532.
83 tristate "LED Support for Samsung S3C24XX GPIO LEDs"
85 depends on ARCH_S3C24XX
87 This option enables support for LEDs connected to GPIO lines
88 on Samsung S3C24XX series CPUs, such as the S3C2410 and S3C2440.
91 tristate "LED Support for Soekris net48xx series Error LED"
93 depends on SCx200_GPIO
95 This option enables support for the Soekris net4801 and net4826 error
99 tristate "LED Support for the Freecom FSG-3"
100 depends on LEDS_CLASS
103 This option enables support for the LEDs on the Freecom FSG-3.
106 tristate "LED Support for the WRAP series LEDs"
107 depends on LEDS_CLASS
108 depends on SCx200_GPIO
110 This option enables support for the PCEngines WRAP programmable LEDs.
112 config LEDS_COBALT_QUBE
113 tristate "LED Support for the Cobalt Qube series front LED"
114 depends on LEDS_CLASS
115 depends on MIPS_COBALT
117 This option enables support for the front LED on Cobalt Qube series
119 config LEDS_COBALT_RAQ
120 bool "LED Support for the Cobalt Raq series"
121 depends on LEDS_CLASS=y && MIPS_COBALT
124 This option enables support for the Cobalt Raq series LEDs.
127 tristate "LED support for SunFire servers."
128 depends on LEDS_CLASS
132 This option enables support for the Left, Middle, and Right
133 LEDs on the I/O and CPU boards of SunFire UltraSPARC servers.
136 tristate "LED Support for the HP Jornada 6xx"
137 depends on LEDS_CLASS
140 This option enables LED support for the handheld
141 HP Jornada 620/660/680/690.
144 tristate "LED driver for PCA9532 dimmer"
145 depends on LEDS_CLASS
146 depends on I2C && INPUT && EXPERIMENTAL
148 This option enables support for NXP pca9532
149 LED controller. It is generally only useful
152 config LEDS_PCA9532_GPIO
153 bool "Enable GPIO support for PCA9532"
154 depends on LEDS_PCA9532
157 Allow unused pins on PCA9532 to be used as gpio.
159 To use a pin as gpio pca9532_type in pca9532_platform data needs to
160 set to PCA9532_TYPE_GPIO.
163 tristate "LED Support for GPIO connected LEDs"
164 depends on LEDS_CLASS
165 depends on GENERIC_GPIO
167 This option enables support for the LEDs connected to GPIO
168 outputs. To be useful the particular board must have LEDs
169 and they must be connected to the GPIO lines. The LEDs must be
170 defined as platform devices and/or OpenFirmware platform devices.
171 The code to use these bindings can be selected below.
174 tristate "LED Support for N.S. LP3944 (Fun Light) I2C chip"
175 depends on LEDS_CLASS
178 This option enables support for LEDs connected to the National
179 Semiconductor LP3944 Lighting Management Unit (LMU) also known as
182 To compile this driver as a module, choose M here: the
183 module will be called leds-lp3944.
186 tristate "LED Support for N.S. LP5521 LED driver chip"
187 depends on LEDS_CLASS && I2C
189 If you say yes here you get support for the National Semiconductor
190 LP5521 LED driver. It is 3 channel chip with programmable engines.
191 Driver provides direct control via LED class and interface for
192 programming the engines.
195 tristate "LED Support for N.S. LP5523 LED driver chip"
196 depends on LEDS_CLASS && I2C
198 If you say yes here you get support for the National Semiconductor
199 LP5523 LED driver. It is 9 channel chip with programmable engines.
200 Driver provides direct control via LED class and interface for
201 programming the engines.
204 tristate "LED support for the TI LP8788 PMIC"
205 depends on LEDS_CLASS
206 depends on MFD_LP8788
208 This option enables support for the Keyboard LEDs on the LP8788 PMIC.
210 config LEDS_CLEVO_MAIL
211 tristate "Mail LED on Clevo notebook"
212 depends on LEDS_CLASS
213 depends on X86 && SERIO_I8042 && DMI
215 This driver makes the mail LED accessible from userspace
216 programs through the leds subsystem. This LED have three
217 known mode: off, blink at 0.5Hz and blink at 1Hz.
219 The driver supports two kinds of interface: using ledtrig-timer
220 or through /sys/class/leds/clevo::mail/brightness. As this LED
221 cannot change it's brightness it blinks instead. The brightness
222 value 0 means off, 1..127 means blink at 0.5Hz and 128..255 means
225 This module can drive the mail LED for the following notebooks:
230 Clevo D400V/D470V (not tested, but might work)
232 Clevo M5x0N (not tested, but might work)
233 Positivo Mobile (Clevo M5x0V)
235 If your model is not listed here you can try the "nodetect"
238 To compile this driver as a module, choose M here: the
239 module will be called leds-clevo-mail.
242 tristate "LED Support for PCA955x I2C chips"
243 depends on LEDS_CLASS
246 This option enables support for LEDs connected to PCA955x
247 LED driver chips accessed via the I2C bus. Supported
248 devices include PCA9550, PCA9551, PCA9552, and PCA9553.
251 tristate "LED support for PCA9633 I2C chip"
252 depends on LEDS_CLASS
255 This option enables support for LEDs connected to the PCA9633
256 LED driver chip accessed via the I2C bus.
258 config LEDS_WM831X_STATUS
259 tristate "LED support for status LEDs on WM831x PMICs"
260 depends on LEDS_CLASS
261 depends on MFD_WM831X
263 This option enables support for the status LEDs of the WM831x
267 tristate "LED Support for WM8350 AudioPlus PMIC"
268 depends on LEDS_CLASS
269 depends on MFD_WM8350
271 This option enables support for LEDs driven by the Wolfson
272 Microelectronics WM8350 AudioPlus PMIC.
275 tristate "LED Support for DA9030/DA9034 PMIC"
276 depends on LEDS_CLASS
277 depends on PMIC_DA903X
279 This option enables support for on-chip LED drivers found
280 on Dialog Semiconductor DA9030/DA9034 PMICs.
283 tristate "Dialog DA9052/DA9053 LEDS"
284 depends on LEDS_CLASS
285 depends on PMIC_DA9052
287 This option enables support for on-chip LED drivers found
288 on Dialog Semiconductor DA9052-BC and DA9053-AA/Bx PMICs.
290 config LEDS_DAC124S085
291 tristate "LED Support for DAC124S085 SPI DAC"
292 depends on LEDS_CLASS
295 This option enables support for DAC124S085 SPI DAC from NatSemi,
296 which can be used to control up to four LEDs.
299 tristate "PWM driven LED Support"
300 depends on LEDS_CLASS
303 This option enables support for pwm driven LEDs
305 config LEDS_REGULATOR
306 tristate "REGULATOR driven LED support"
307 depends on LEDS_CLASS
310 This option enables support for regulator driven LEDs.
313 tristate "LED driver for BD2802 RGB LED"
314 depends on LEDS_CLASS
317 This option enables support for BD2802GU RGB LED driver chips
318 accessed via the I2C bus.
320 config LEDS_INTEL_SS4200
321 tristate "LED driver for Intel NAS SS4200 series"
322 depends on LEDS_CLASS
323 depends on PCI && DMI
325 This option enables support for the Intel SS4200 series of
326 Network Attached Storage servers. You may control the hard
327 drive or power LEDs on the front panel. Using this driver
328 can stop the front LED from blinking after startup.
331 tristate "LED driver for LT3593 controllers"
332 depends on LEDS_CLASS
333 depends on GENERIC_GPIO
335 This option enables support for LEDs driven by a Linear Technology
336 LT3593 controller. This controller uses a special one-wire pulse
337 coding protocol to set the brightness.
340 tristate "LED Support for ADP5520/ADP5501 PMIC"
341 depends on LEDS_CLASS
342 depends on PMIC_ADP5520
344 This option enables support for on-chip LED drivers found
345 on Analog Devices ADP5520/ADP5501 PMICs.
347 To compile this driver as a module, choose M here: the module will
348 be called leds-adp5520.
350 config LEDS_DELL_NETBOOKS
351 tristate "External LED on Dell Business Netbooks"
352 depends on LEDS_CLASS
353 depends on X86 && ACPI_WMI
355 This adds support for the Latitude 2100 and similar
356 notebooks that have an external LED.
359 tristate "LED Support for MC13783 PMIC"
360 depends on LEDS_CLASS
361 depends on MFD_MC13783
363 This option enable support for on-chip LED drivers found
364 on Freescale Semiconductor MC13783 PMIC.
367 tristate "LED support for Network Space v2 GPIO LEDs"
368 depends on LEDS_CLASS
369 depends on MACH_NETSPACE_V2 || MACH_INETSPACE_V2 || \
370 MACH_NETSPACE_MAX_V2 || MACH_D2NET_V2
373 This option enable support for the dual-GPIO LED found on the
374 Network Space v2 board (and parents). This include Internet Space v2,
375 Network Space (Max) v2 and d2 Network v2 boards.
378 tristate "LED support for Big Network series LEDs"
379 depends on MACH_NET2BIG_V2 || MACH_NET5BIG_V2
380 depends on LEDS_CLASS
383 This option enable support for LEDs found on the LaCie 2Big
384 and 5Big Network v2 boards. The LEDs are wired to a CPLD and are
385 controlled through a GPIO extension bus.
388 bool "LED support for the HTC ASIC3"
389 depends on LEDS_CLASS=y
393 This option enables support for the LEDs on the HTC ASIC3. The HTC
394 ASIC3 LED GPIOs are inputs, not outputs, thus the leds-gpio driver
395 cannot be used. This driver supports hardware blinking with an on+off
396 period from 62ms to 125s. Say Y to enable LEDs on the HP iPAQ hx4700.
398 config LEDS_RENESAS_TPU
399 bool "LED support for Renesas TPU"
400 depends on LEDS_CLASS=y && HAVE_CLK && GENERIC_GPIO
402 This option enables build of the LED TPU platform driver,
403 suitable to drive any TPU channel on newer Renesas SoCs.
404 The driver controls the GPIO pin connected to the LED via
405 the GPIO framework and expects the LED to be connected to
406 a pin that can be driven in both GPIO mode and using TPU
407 pin function. The latter to support brightness control.
408 Brightness control is supported but hardware blinking is not.
411 tristate "LED Support for TCA6507 I2C chip"
412 depends on LEDS_CLASS && I2C
414 This option enables support for LEDs connected to TC6507
415 LED driver chips accessed via the I2C bus.
416 Driver support brightness control and hardware-assisted blinking.
419 tristate "LED support for MAX8997 PMIC"
420 depends on LEDS_CLASS && MFD_MAX8997
422 This option enables support for on-chip LED drivers on
426 tristate "LED support for LM3556 Chip"
427 depends on LEDS_CLASS && I2C
430 This option enables support for LEDs connected to LM3556.
431 LM3556 includes Torch, Flash and Indicator functions.
434 tristate "LED support for the Bachmann OT200"
435 depends on LEDS_CLASS && HAS_IOMEM
437 This option enables support for the LEDs on the Bachmann OT200.
438 Say Y to enable LEDs on the Bachmann OT200.
441 tristate "LED support for the BlinkM I2C RGB LED"
442 depends on LEDS_CLASS
445 This option enables support for the BlinkM RGB LED connected
446 through I2C. Say Y to enable support for the BlinkM LED.
449 bool "LED Trigger support"
450 depends on LEDS_CLASS
452 This option enables trigger support for the leds class.
453 These triggers allow kernel events to drive the LEDs and can
454 be configured via sysfs. If unsure, say Y.
456 comment "LED Triggers"
458 config LEDS_TRIGGER_TIMER
459 tristate "LED Timer Trigger"
460 depends on LEDS_TRIGGERS
462 This allows LEDs to be controlled by a programmable timer
463 via sysfs. Some LED hardware can be programmed to start
464 blinking the LED without any further software interaction.
465 For more details read Documentation/leds/leds-class.txt.
469 config LEDS_TRIGGER_ONESHOT
470 tristate "LED One-shot Trigger"
471 depends on LEDS_TRIGGERS
473 This allows LEDs to blink in one-shot pulses with parameters
474 controlled via sysfs. It's useful to notify the user on
475 sporadic events, when there are no clear begin and end trap points,
476 or on dense events, where this blinks the LED at constant rate if
477 rearmed continuously.
479 It also shows how to use the led_blink_set_oneshot() function.
483 config LEDS_TRIGGER_IDE_DISK
484 bool "LED IDE Disk Trigger"
485 depends on IDE_GD_ATA
486 depends on LEDS_TRIGGERS
488 This allows LEDs to be controlled by IDE disk activity.
491 config LEDS_TRIGGER_HEARTBEAT
492 tristate "LED Heartbeat Trigger"
493 depends on LEDS_TRIGGERS
495 This allows LEDs to be controlled by a CPU load average.
496 The flash frequency is a hyperbolic function of the 1-minute
500 config LEDS_TRIGGER_BACKLIGHT
501 tristate "LED backlight Trigger"
502 depends on LEDS_TRIGGERS
504 This allows LEDs to be controlled as a backlight device: they
505 turn off and on when the display is blanked and unblanked.
509 config LEDS_TRIGGER_GPIO
510 tristate "LED GPIO Trigger"
511 depends on LEDS_TRIGGERS
514 This allows LEDs to be controlled by gpio events. It's good
515 when using gpios as switches and triggering the needed LEDs
516 from there. One use case is n810's keypad LEDs that could
517 be triggered by this trigger when user slides up to show
522 config LEDS_TRIGGER_DEFAULT_ON
523 tristate "LED Default ON Trigger"
524 depends on LEDS_TRIGGERS
526 This allows LEDs to be initialised in the ON state.
529 comment "iptables trigger is under Netfilter config (LED target)"
530 depends on LEDS_TRIGGERS
532 config LEDS_TRIGGER_TRANSIENT
533 tristate "LED Transient Trigger"
534 depends on LEDS_TRIGGERS
536 This allows one time activation of a transient state on
537 GPIO/PWM based hardware.