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/linux/include/media/
H A Dv4l2-flash-led-class.h1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * V4L2 flash LED sub-device registration helpers.
12 #include <media/v4l2-ctrls.h>
13 #include <media/v4l2-subdev.h>
21 * struct v4l2_flash_ctrl_data - flash control initialization data, filled
22 * basing on the features declared by the LED flash
34 * struct v4l2_flash_ops - V4L2 flash operations
53 * struct v4l2_flash_config - V4L2 Flash sub-device initialization data
56 * @intensity: non-flash strobe constraints for the LED
57 * @flash_faults: bitmask of flash faults that the LED flash class
[all …]
/linux/Documentation/leds/
H A Dleds-class-flash.rst2 Flash LED handling under Linux
5 Some LED devices provide two modes - torch and flash. In the LED subsystem
6 those modes are supported by LED class (see Documentation/leds/leds-class.rst)
7 and LED Flash class respectively. The torch mode related features are enabled
12 must be defined in the kernel config. A LED Flash class driver must be
13 registered in the LED subsystem with led_classdev_flash_register function.
15 Following sysfs attributes are exposed for controlling flash LED devices:
16 (see Documentation/ABI/testing/sysfs-class-led-flash)
18 - flash_brightness
19 - max_flash_brightness
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/linux/drivers/leds/
H A Dleds-pca963x.c1 // SPDX-License-Identifier: GPL-2.0-only
6 * Author: Peter Meerwald <p.meerwald@bct-electronic.com>
9 * Based on leds-pca955x.c
11 * LED driver for the PCA9633 I2C LED driver (7-bit slave address 0x62)
12 * LED drive
122 pca963x_brightness(struct pca963x_led * led,unsigned int led_num,enum led_brightness brightness) pca963x_brightness() argument
174 pca963x_blink(struct pca963x_led * led) pca963x_blink() argument
206 pca963x_track_power_state(struct pca963x_led * led,unsigned int led_num,enum led_brightness brightness) pca963x_track_power_state() argument
217 pca963x_sync_power_state(struct pca963x_led * led,unsigned long cached_leds) pca963x_sync_power_state() argument
231 struct pca963x_led *led; pca963x_led_set() local
256 struct pca963x_led *led = container_of(mc_cdev, struct pca963x_led, mc_cdev); pca963x_led_mc_set() local
286 pca963x_period_scale(struct pca963x_led * led,unsigned int val) pca963x_period_scale() argument
298 struct pca963x_led *led; pca963x_blink_set() local
349 pca963x_parse_mc_subleds(struct device * dev,struct pca963x_led * led,struct fwnode_handle * fwnode,const struct pca963x_chipdef * chipdef) pca963x_parse_mc_subleds() argument
386 pca963x_register_led(struct device * dev,struct pca963x_led * led,u32 reg,struct fwnode_handle * fwnode,const struct pca963x_chipdef * chipdef,bool hw_blink) pca963x_register_led() argument
428 struct pca963x_led *led = chip->leds; pca963x_register_leds() local
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H A Dleds-spi-byte.c1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright (c) 2019 Christian Mauderer <oss@c-mauderer.de>
6 * - one LED is controlled by a single byte on MOSI
7 * - the value of the byte gives the brightness between two values (lowest to
9 * - no return value is necessary (no MISO signal)
15 * - "ubnt,acb-spi-led": Microcontroller (SONiX 8F26E611LA) based device used
19 * * Mode: 00 -> set brightness between 0x00 (min) and 0x3F (max)
20 * * Mode: 01 -> pulsing pattern (min -> max -> min) with an interval. From
24 * * Mode: 10 -> same as 01 but with only a ramp from min to max. Again a
26 * * Mode: 11 -> blinking (off -> 25% -> off -> 25% -> ...) with a period of
[all …]
/linux/Documentation/devicetree/bindings/mfd/
H A Dtps6105x.txt
H A Dmediatek,mt6360.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Gen
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H A D88pm860x.txt4 - compatible : "marvell,88pm860x"
5 - reg : the I2C slave address for the 88pm860x chip
6 - interrupts : IRQ line for the 88pm860x chip
7 - interrupt-controller: describes the 88pm860x as an interrupt controller (has its own domain)
8 - #interrupt-cells : should be 1.
9 - The cell is the 88pm860x local IRQ number
12 - marvell,88pm860x-irq-read-clr: inicates whether interrupt status is cleared by read
13 - marvell,88pm860x-slave-addr: 88pm860x are two chips solution. <reg> stores the I2C address
17 88pm860x consists of a large and varied group of sub-devices:
20 ------ ------------ -----------
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/linux/Documentation/devicetree/bindings/leds/
H A Dleds-lt3593.txt1 Bindings for Linear Technologies LT3593 LED controller
4 - compatible: Should be "lltc,lt3593".
5 - lltc,ctrl-gpios: A handle to the GPIO that is connected to the 'CTRL'
8 The hardware supports only one LED. The properties of this LED are
9 configured in a sub-node in the device node.
11 Optional sub-node properties:
12 - function: See Documentation/devicetree/bindings/leds/common.txt
13 - color: See Documentation/devicetree/bindings/leds/common.txt
14 - label: A label for the LED. If none is given, the LED will be
16 - linux,default-trigger: The default trigger for the LED.
[all …]
H A Dleds-powernv.txt2 -------------------------------------------------
5 - compatible : Should be "ibm,opal-v3-led".
6 - led-mode : Should be "lightpath" or "guidinglight".
9 form of a sub-node.
11 Required properties for the sub nodes:
12 - led-types : Supported LED types (attention/identify/fault) provided
18 compatible = "ibm,opal-v3-led";
19 led-mode = "lightpath";
21 U78C9.001.RST0027-P1-C1 {
22 led-types = "identify", "fault";
H A Dleds-spi-byte.txt1 * Single Byte SPI LED Device Driver.
4 - one LED is controlled by a single byte on MOSI
5 - the value of the byte gives the brightness between two values (lowest to
7 - no return value is necessary (no MISO signal)
15 The driver currently only supports one LED. The properties of the LED are
16 configured in a sub-node in the device node.
19 - compatible: should be one of
20 * "ubnt,acb-spi-led" microcontroller (SONiX 8F26E611LA) based device
23 Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
26 LED sub-node properties:
[all …]
H A 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
23 clock-names:
25 - const: sso
[all …]
H A Dleds-netxbig.txt
H A 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 - Pave
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H A 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
[all …]
H A Dleds-cr0014114.txt1 Crane Merchandising System - cr0014114 LED driver
2 -------------------------------------------------
4 This LED Board is widely used in vending machines produced
8 - compatible: "crane,cr0014114"
10 Property rules described in Documentation/devicetree/bindings/spi/spi-bus.txt
11 apply. In particular, "reg" and "spi-max-frequency" properties must be given.
13 LED sub-node properties:
14 - function :
16 - color :
18 - label :
[all …]
H A Dleds-el15203000.txt1 Crane Merchandising System - EL15203000 LED driver
2 --------------------------------------------------
4 This LED Board (aka RED LEDs board) is widely used in
9 Vending area LED encoded with symbol 'V' (hex code 0x56).
12 Screen light tube LED which surrounds vending machine screen and
15 Water Pipe LED encoded with symbol 'P' (hex code 0x50) and
16 actually consists of 5 LEDs that exposed by protocol like one LED.
18 - cascade pattern
19 - inversed cascade pattern
20 - bounce pattern
[all …]
H A Dleds-max77650.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/leds/leds-max77650.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: LED driver for MAX77650 PMIC from Maxim Integrated.
10 - Bartosz Golaszewski <bgolaszewski@baylibre.com>
16 The LED controller is represented as a sub-node of the PMIC node on
23 const: maxim,max77650-led
25 "#address-cells":
28 "#size-cells":
[all …]
H A Dbrcm,bcm6358-leds.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/brcm,bcm6358-leds.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
12 which can either be controlled by software (exporting the 74x164 as spi-gpio.
17 - Álvaro Fernández Rojas <noltari@gmail.com>
21 const: brcm,bcm6358-leds
26 "#address-cells":
29 "#size-cells":
32 brcm,clk-div:
[all …]
H A 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
27 is usually 1:1 for hardware to LED signals, but through the activity/link
29 explained later in brcm,link-signal-sources). Even if a LED is hardware
[all …]
/linux/Documentation/userspace-api/media/v4l/
H A Dmetafmt-d4xx.rst1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
4 .. _v4l2-meta-fmt-d4xx:
16 Intel D4xx (D435, D455 and others) cameras include per-frame metadata in their UVC
38 .. flat-table:: D4xx metadata
40 :header-rows: 1
41 :stub-columns: 0
43 * - **Field**
44 - **Description**
45 * - :cspan:`1` *Depth Control*
46 * - __u32 ID
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/linux/drivers/leds/rgb/
H A Dleds-group-multicolor.c1 // SPDX-License-Identifier: GPL-2.0
3 * Multi-color LED built with monochromatic LED devices
5 * This driver groups several monochromatic LED devices in a single multicolor LED device.
7 * Compared to handling this grouping in user-space, the benefits are:
8 * - The state of the monochromatic LED relative to each other is always consistent.
9 * - The sysfs interface of the LEDs can be used for the group as a whole.
11 * Copyright 2023 Jean-Jacques Hiblot <jjhiblot@traphandler.com>
16 #include <linux/led-class-multicolor.h>
31 const unsigned int group_max_brightness = mc_cdev->led_cdev.max_brightness; in leds_gmc_set()
34 for (i = 0; i < mc_cdev->num_colors; i++) { in leds_gmc_set()
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/linux/arch/arm/boot/dts/samsung/
H A Dexynos4412-galaxy-s3.dtsi1 // SPDX-License-Identifier: GPL-2.0
9 /dts-v1/;
10 #include <dt-bindings/leds/common.h>
11 #include "exynos4412-midas.dtsi"
19 led-controller {
21 flen-gpios = <&gpj1 1 GPIO_ACTIVE_HIGH>;
22 enset-gpios = <&gpj1 2 GPIO_ACTIVE_HIGH>;
24 pinctrl-names = "default", "host", "isp";
25 pinctrl-0 = <&camera_flash_host>;
26 pinctrl-1 = <&camera_flash_host>;
[all …]
/linux/drivers/mfd/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
58 tristate "Active-semi ACT8945A"
63 Support for the ACT8945A PMIC from Active-semi. This device
64 features three step-down DC/DC converters and four low-dropout
80 sun4i-gpadc-ii
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H A Drt5033.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * RT5033 comprises multiple sub-devices switcing charger, fuel gauge,
6 * flash LED, current source, LDO and BUCK regulators.
17 #include <linux/mfd/rt5033-private.h>
38 { .name = "rt5033-regulator", },
40 .name = "rt5033-charger",
41 .of_compatible = "richtek,rt5033-charger",
43 .name = "rt5033-led",
44 .of_compatible = "richtek,rt5033-led",
60 rt5033 = devm_kzalloc(&i2c->dev, sizeof(*rt5033), GFP_KERNEL); in rt5033_i2c_probe()
[all …]
/linux/drivers/media/v4l2-core/
H A Dv4l2-flash-led-class.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * V4L2 flash LED sub-device registration helpers.
9 #include <linux/led-class-flash.h>
15 #include <media/v4l2-flash-led-class.h>
18 (v4l2_flash && v4l2_flash->ops && v4l2_flash->ops->op)
22 v4l2_flash->ops->op(v4l2_flash, arg) : \
23 -EINVAL)
46 intensity -= ctrl->minimum; in __intensity_to_led_brightness()
47 intensity /= (u32) ctrl->step; in __intensity_to_led_brightness()
53 * the LED subsystem reflects LED_OFF state. in __intensity_to_led_brightness()
[all …]

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