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/Documentation/devicetree/bindings/leds/
Dleds-mt6360.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-mt6360.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LED driver for MT6360 PMIC from MediaTek Integrated.
10 - Gene Chen <gene_chen@richtek.com>
15 Add MT6360 LED driver include 2-channel Flash LED with torch/strobe mode,
16 and 4-channel RGB LED support Register/Flash/Breath Mode
20 const: mediatek,mt6360-led
22 "#address-cells":
[all …]
Dqcom,spmi-flash-led.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/qcom,spmi-flash-led.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Flash LED device inside Qualcomm Technologies, Inc. PMICs
10 - Fenglin Wu <quic_fenglinw@quicinc.com>
13 Flash LED controller is present inside some Qualcomm Technologies, Inc. PMICs.
14 The flash LED module can have different number of LED channels supported
24 - enum:
25 - qcom,pm6150l-flash-led
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Dcommon.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 LED and flash LED devices provide the same basic functionality as current
15 regulators, but extended with LED and flash LED specific features like
18 Many LED devices expose more than one current output that can be connected
19 to one or more discrete LED component. Since the arrangement of connections
20 can influence the way of the LED device initialization, the LED components
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Dleds-lp55xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lp55xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: TI/National Semiconductor LP55xx and LP8501 LED Drivers
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
15 LED Drivers.
27 - national,lp5521
28 - national,lp5523
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Dleds-mt6323.txt1 Device Tree Bindings for LED support on MT6323 PMIC
3 MT6323 LED controller is subfunction provided by MT6323 PMIC, so the LED
5 PMIC controller that is being defined as one kind of Muti-Function Device (MFD)
15 - compatible : Must be one of
16 - "mediatek,mt6323-led"
17 - "mediatek,mt6331-led"
18 - "mediatek,mt6332-led"
19 - address-cells : Must be 1
20 - size-cells : Must be 0
22 Each led is represented as a child node of the mediatek,mt6323-led that
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Dleds-lp50xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lp50xx.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LED driver for LP50XX RGB LED from Texas Instruments.
10 - Andrew Davis <afd@ti.com>
13 The LP50XX is multi-channel, I2C RGB LED Drivers that can group RGB LEDs into
14 a LED group or control them individually.
16 The difference in these RGB LED drivers is the number of supported RGB
27 - ti,lp5009
[all …]
Dawinic,aw200xx.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: AWINIC AW200XX LED
10 - Martin Kurbanov <mmkurbanov@sberdevices.ru>
13 It is a matrix LED driver programmed via an I2C interface. Devices have
16 - AW20036 (3x12) 36 LEDs
17 - AW20054 (6x9) 54 LEDs
18 - AW20072 (6x12) 72 LEDs
19 - AW20108 (9x12) 108 LEDs
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Dkinetic,ktd202x.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Kinetic KTD2026/7 RGB/White LED Driver
10 - André Apitzsch <git@apitzsch.eu>
13 The KTD2026/7 is a RGB/White LED driver with I2C interface.
16 https://www.kinet-ic.com/uploads/KTD2026-7-04h.pdf
21 - kinetic,ktd2026
22 - kinetic,ktd2027
25 maxItems: 1
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Dleds-aw2013.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-aw2013.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: AWINIC AW2013 3-channel LED Driver
10 - Nikita Travkin <nikitos.tr@gmail.com>
13 The AW2013 is a 3-channel LED driver with I2C interface. It can control
14 LED brightness with PWM output.
21 maxItems: 1
24 maxItems: 1
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Dleds-lm3532.txt1 * Texas Instruments - lm3532 White LED driver with ambient light sensing
4 The LM3532 provides the 3 high-voltage, low-side current sinks. The device is
5 programmable over an I2C-compatible interface and has independent
7 method allows for different LED currents in each current sink thus allowing
11 each with 32 internal voltage setting resistors, 8-bit logarithmic and linear
13 1000:1 dimming ratio with programmable fade in and fade out settings.
16 - compatible : "ti,lm3532"
17 - reg : I2C slave address
18 - #address-cells : 1
19 - #size-cells : 0
[all …]
Dissi,is31fl319x.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ISSI LED Controllers for IS31FL319{0,1,3,6,9}
10 - Vincent Knecht <vincent.knecht@mailoo.org>
13 The IS31FL319X are LED controllers with I2C interface.
14 Previously known as Si-En SN319{0,1,3,6,9}.
26 - issi,is31fl3190
27 - issi,is31fl3191
28 - issi,is31fl3193
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Dleds-gpio.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jacek Anaszewski <jacek.anaszewski@gmail.com>
11 - Pavel Machek <pavel@ucw.cz>
14 Each LED is represented as a sub-node of the gpio-leds device. Each
15 node's name represents the name of the corresponding LED.
19 const: gpio-leds
22 # The first form is preferred, but fall back to just 'led' anywhere in the
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Dleds-lm3697.txt1 * Texas Instruments - LM3697 Highly Efficient White LED Driver
3 The LM3697 11-bit LED driver provides high-
4 performance backlight dimming for 1, 2, or 3 series
5 LED strings while delivering up to 90% efficiency.
10 - compatible:
12 - reg : I2C slave address
13 - #address-cells : 1
14 - #size-cells : 0
17 - enable-gpios : GPIO pin to enable/disable the device
18 - vled-supply : LED supply
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Dleds-bcm6328.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-bcm6328.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Álvaro Fernández Rojas <noltari@gmail.com>
17 as spi-gpio. See
21 exporting the 74x164 as spi-gpio prevents those LEDs to be hardware
24 BCM6328 LED controller has a HWDIS register, which controls whether a LED
26 with 0 meaning hardware control enabled and 1 hardware control disabled. This
27 is usually 1:1 for hardware to LED signals, but through the activity/link
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Dleds-lgm.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-lgm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Intel Lightning Mountain (LGM) SoC LED Serial Shift Output (SSO) Controller driver
10 - Zhu, Yi Xin <Yixin.zhu@intel.com>
11 - Amireddy Mallikarjuna reddy <mallikarjunax.reddy@intel.com>
15 const: intel,lgm-ssoled
18 maxItems: 1
23 clock-names:
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Dqcom,pm8058-led.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/leds/qcom,pm8058-led.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Qualcomm PM8058 PMIC LED
10 - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
13 The Qualcomm PM8058 contains an LED block for up to six LEDs:: three normal
14 LEDs, two "flash" LEDs and one "keypad backlight" LED. The names are quoted
15 because sometimes these LED drivers are used for wildly different things than
17 hard-wired usecase.
[all …]
Dkinetic,ktd2692.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: KTD2692 Flash LED Driver from Kinetic Technologies
10 - Markuss Broks <markuss.broks@gmail.com>
13 KTD2692 is the ideal power solution for high-power flash LEDs.
14 It uses ExpressWire single-wire programming for maximum flexibility.
16 The ExpressWire interface through CTRL pin can control LED on/off and
17 enable/disable the IC, Movie(max 1/3 of Flash current) / Flash mode current,
21 LED current will be ramped up to the flash-mode current level.
[all …]
Donnn,ncp5623.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ON Semiconductor NCP5623 multi-LED Driver
10 - Abdel Alkuor <alkuor@gmail.com>
13 NCP5623 Triple Output I2C Controlled LED Driver.
14 https://www.onsemi.com/pdf/datasheet/ncp5623-d.pdf
19 - onnn,ncp5623
24 multi-led:
26 $ref: leds-class-multicolor.yaml#
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Dleds-is31fl32xx.txt1 Binding for ISSI IS31FL32xx and Si-En SN32xx LED Drivers
3 The IS31FL32xx/SN32xx family of LED drivers are I2C devices with multiple
4 constant-current channels, each with independent 256-level PWM control.
5 Each LED is represented as a sub-node of the device.
8 - compatible: one of
13 si-en,sn3218
14 si-en,sn3216
15 - reg: I2C slave address
16 - address-cells : must be 1
17 - size-cells : must be 0
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/Documentation/ABI/testing/
Dsysfs-class-led-trigger-netdev1 What: /sys/class/leds/<led>/device_name
4 Contact: linux-leds@vger.kernel.org
8 What: /sys/class/leds/<led>/interval
11 Contact: linux-leds@vger.kernel.org
13 Specifies the duration of the LED blink in milliseconds.
21 What: /sys/class/leds/<led>/link
24 Contact: linux-leds@vger.kernel.org
28 If set to 0 (default), the LED's normal state is off.
30 If set to 1, the LED's normal state reflects the link state
32 Setting this value also immediately changes the LED state.
[all …]
Dsysfs-class-led-trigger-tty4 Contact: linux-leds@vger.kernel.org
13 If set to 0, the LED will not blink on reception.
14 If set to 1 (default), the LED will blink on reception.
21 If set to 0, the LED will not blink on transmission.
22 If set to 1 (default), the LED will blink on transmission.
30 If the line state is detected, the LED is switched on.
31 If set to 0 (default), the LED will not evaluate CTS.
32 If set to 1, the LED will evaluate CTS.
40 If the line state is detected, the LED is switched on.
41 If set to 0 (default), the LED will not evaluate DSR.
[all …]
Dsysfs-class-led-flash1 What: /sys/class/leds/<led>/flash_brightness
6 Set the brightness of this LED in the flash strobe mode, in
7 microamperes. The file is created only for the flash LED devices
11 /sys/class/leds/<led>/max_flash_brightness.
13 What: /sys/class/leds/<led>/max_flash_brightness
18 Maximum brightness level for this LED in the flash strobe mode,
21 What: /sys/class/leds/<led>/flash_timeout
28 of the strobe. The file is created only for the flash LED
31 What: /sys/class/leds/<led>/max_flash_timeout
36 Maximum flash timeout for this LED, in microseconds.
[all …]
/Documentation/leds/
Dledtrig-oneshot.rst2 One-shot LED Trigger
5 This is a LED trigger useful for signaling the user of an event where there are
6 no clear trap points to put standard led-on and led-off settings. Using this
8 happened, then the trigger turns the LED on and then keeps it off for a
16 A one-shot LED only stays in a constant state when there are no events. An
17 additional "invert" property specifies if the LED has to stay off (normal) or
20 The trigger can be activated from user space on led class devices as shown
25 This adds sysfs attributes to the LED that are documented in:
26 Documentation/ABI/testing/sysfs-class-led-trigger-oneshot
28 Example use-case: network devices, initialization::
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Dledtrig-transient.rst2 LED Transient Trigger
8 to be off. The delay_on value specifies the time period an LED should stay
9 in on state, followed by a delay_off value that specifies how long the LED
24 When an led class device driver registers itself, it can specify all leds
26 routine for the default trigger gets called. During registration of an led
27 class device, the LED state does not change.
30 trigger will be called, and LED state is changed to LED_OFF.
32 Driver suspend changes the LED state to LED_OFF and resume doesn't change
34 suspend and resume actions and the currently enabled trigger. LED state
37 being able to actually change the LED state. Once driver is resumed, triggers
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/Documentation/firmware-guide/acpi/dsd/
Dleds.rst1 .. SPDX-License-Identifier: GPL-2.0
9 device node, the LED driver chip. The "reg" property in the LED specific nodes
10 tells the numerical ID of each individual LED output to which the LEDs are
11 connected. [leds] The hierarchical data nodes are named "led@X", where X is the
12 number of the LED output.
14 Referring to LEDs in Device tree is documented in [video-interfaces], in
15 "flash-leds" property documentation. In short, LEDs are directly referred to by
19 combination of the LED driver device reference and an integer argument,
20 referring to the "reg" property of the relevant LED, is used to identify
22 firmware and software, it uniquely identifies the LED driver outputs.
[all …]

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