Searched +full:flash +full:- +full:leds (Results 1 – 25 of 861) sorted by relevance
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| /kernel/linux/linux-5.10/Documentation/leds/ |
| D | leds-lm3556.rst | 6 1.5 A Synchronous Boost LED Flash Driver w/ High-Side Current Source
10 - Daniel Jeong
12 Contact:Daniel Jeong(daniel.jeong-at-ti.com, gshark.jeong-at-gmail.com)
15 -----------
16 There are 3 functions in LM3556, Flash, Torch and Indicator.
18 Flash Mode
21 In Flash Mode, the LED current source(LED) provides 16 target current levels
22 from 93.75 mA to 1500 mA.The Flash currents are adjusted via the CURRENT
23 CONTROL REGISTER(0x09).Flash mode is activated by the ENABLE REGISTER(0x0A),
26 LM3556 Flash can be controlled through sys/class/leds/flash/brightness file
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| D | leds-class-flash.rst | 2 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
8 by default and the flash ones only if a driver declares it by setting
11 In order to enable the support for flash LEDs CONFIG_LEDS_CLASS_FLASH symbol
12 must be defined in the kernel config. A LED Flash class driver must be
15 Following sysfs attributes are exposed for controlling flash LED devices:
16 (see Documentation/ABI/testing/sysfs-class-led-flash)
18 - flash_brightness
[all …]
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| /kernel/linux/linux-6.6/Documentation/leds/ |
| D | leds-lm3556.rst | 6 1.5 A Synchronous Boost LED Flash Driver w/ High-Side Current Source
10 - Daniel Jeong
12 Contact:Daniel Jeong(daniel.jeong-at-ti.com, gshark.jeong-at-gmail.com)
15 -----------
16 There are 3 functions in LM3556, Flash, Torch and Indicator.
18 Flash Mode
21 In Flash Mode, the LED current source(LED) provides 16 target current levels
22 from 93.75 mA to 1500 mA.The Flash currents are adjusted via the CURRENT
23 CONTROL REGISTER(0x09).Flash mode is activated by the ENABLE REGISTER(0x0A),
26 LM3556 Flash can be controlled through /sys/class/leds/flash/brightness file
[all …]
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| D | leds-class-flash.rst | 2 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
8 by default and the flash ones only if a driver declares it by setting
11 In order to enable the support for flash LEDs CONFIG_LEDS_CLASS_FLASH symbol
12 must be defined in the kernel config. A LED Flash class driver must be
15 Following sysfs attributes are exposed for controlling flash LED devices:
16 (see Documentation/ABI/testing/sysfs-class-led-flash)
18 - flash_brightness
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| /kernel/linux/linux-6.6/Documentation/ABI/testing/ |
| D | sysfs-class-led-flash | 1 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
8 that support setting flash brightness.
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
26 Hardware timeout for flash, in microseconds. The flash strobe
28 of the strobe. The file is created only for the flash LED
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| /kernel/linux/linux-5.10/Documentation/ABI/testing/ |
| D | sysfs-class-led-flash | 1 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
8 that support setting flash brightness.
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
26 Hardware timeout for flash, in microseconds. The flash strobe
28 of the strobe. The file is created only for the flash LED
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/leds/ |
| D | leds-aat1290.txt | 1 * Skyworks Solutions, Inc. AAT1290 Current Regulator for Flash LEDs
4 asserted high, enable flash strobe and movie mode (max 1/2 of flash current)
7 of the flash chip. The switch is controlled with pin control.
11 - compatible : Must be "skyworks,aat1290".
12 - flen-gpios : Must be device tree identifier of the flash device FL_EN pin.
13 - enset-gpios : Must be device tree identifier of the flash device EN_SET pin.
16 - pinctrl-names : Must contain entries: "default", "host", "isp". Entries
23 node - see Documentation/devicetree/bindings/leds/common.txt.
26 - led-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
27 - flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
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| D | common.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Common leds properties
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
16 blinking patterns, flash timeout, flash faults and external flash strobe mode.
[all …]
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| D | ams,as3645a.txt | 3 The AS3645A flash LED controller can drive two LEDs, one high current
4 flash LED and one indicator LED. The high current flash LED can be
18 #address-cells : 1
19 #size-cells : 0
22 Required properties of the flash child node (0)
26 flash-timeout-us: Flash timeout in microseconds. The value must be in
28 flash-max-microamp: Maximum flash current in microamperes. Has to be
31 led-max-microamp: Maximum torch (assist) current in microamperes. The
34 ams,input-max-microamp: Maximum flash controller input current. The
39 Optional properties of the flash child node
[all …]
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| D | leds-pm8058.txt | 3 The Qualcomm PM8058 is a multi-functional device which contains
4 an LED driver block for up to six LEDs: three normal LEDs, two
5 "flash" LEDs and one "keypad backlight" LED. The names are
7 different things than flash or keypad backlight: their names
8 are more of a suggestion than a hard-wired usecase.
10 Hardware-wise the different LEDs support slightly different
11 output currents. The "flash" LEDs do not need to charge nor
15 The LEDs appear as children to the PM8058 device, with the
17 mfd/qcom-pm8xxx.txt.
19 Each LED is represented as a sub-node of the syscon device. Each
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| D | leds-ktd2692.txt | 1 * Kinetic Technologies - KTD2692 Flash LED Driver
3 KTD2692 is the ideal power solution for high-power flash LEDs.
4 It uses ExpressWire single-wire programming for maximum flexibility.
7 enable/disable the IC, Movie(max 1/3 of Flash current) / Flash mode current,
8 Flash timeout, LVP(low voltage protection).
11 LED current will be ramped up to the flash-mode current level.
14 - compatible : Should be "kinetic,ktd2692".
15 - ctrl-gpios : Specifier of the GPIO connected to CTRL pin.
16 - aux-gpios : Specifier of the GPIO connected to AUX pin.
19 - vin-supply : "vin" LED supply (2.7V to 5.5V).
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| D | leds-lm3601x.txt | 1 * Texas Instruments - lm3601x Single-LED Flash Driver
3 The LM3601X are ultra-small LED flash drivers that
7 - compatible : Can be one of the following
10 - reg : I2C slave address
11 - #address-cells : 1
12 - #size-cells : 0
15 - reg : 0 - Indicates a IR mode
16 1 - Indicates a Torch (white LED) mode
18 Required properties for flash LED child nodes:
19 See Documentation/devicetree/bindings/leds/common.txt
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| /kernel/linux/linux-6.6/drivers/leds/flash/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
12 This option enables support for the LEDs on the AAT1290.
15 tristate "AS3645A and LM3555 LED flash controllers support"
19 Enable LED flash class support for AS3645A LED flash
20 controller. V4L2 flash API is provided as well if
24 tristate "LED support for Kinetic KTD2692 flash LED controller"
28 This option enables support for Kinetic KTD2692 LED flash connected
39 of flash, torch and indicator classes.
42 tristate "LED support for MAX77693 Flash"
47 This option enables support for the flash part of the MAX77693
[all …]
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/leds/ |
| D | ams,as3645a.txt | 3 The AS3645A flash LED controller can drive two LEDs, one high current
4 flash LED and one indicator LED. The high current flash LED can be
18 #address-cells : 1
19 #size-cells : 0
22 Required properties of the flash child node (0)
26 flash-timeout-us: Flash timeout in microseconds. The value must be in
28 flash-max-microamp: Maximum flash current in microamperes. Has to be
31 led-max-microamp: Maximum torch (assist) current in microamperes. The
34 ams,input-max-microamp: Maximum flash controller input current. The
39 Optional properties of the flash child node
[all …]
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| D | common.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/leds/common.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Common leds properties
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
16 blinking patterns, flash timeout, flash faults and external flash strobe mode.
[all …]
|
| D | leds-lm3601x.txt | 1 * Texas Instruments - lm3601x Single-LED Flash Driver
3 The LM3601X are ultra-small LED flash drivers that
7 - compatible : Can be one of the following
10 - reg : I2C slave address
11 - #address-cells : 1
12 - #size-cells : 0
15 - reg : 0 - Indicates a IR mode
16 1 - Indicates a Torch (white LED) mode
18 Required properties for flash LED child nodes:
19 See Documentation/devicetree/bindings/leds/common.txt
[all …]
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| D | qcom,pm8058-led.yaml | 1 # 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#
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
16 flash or keypad backlight:: their names are more of a suggestion than a
17 hard-wired usecase.
19 Hardware-wise the different LEDs support slightly different output currents.
[all …]
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| D | kinetic,ktd2692.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/kinetic,ktd2692.yaml#
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.
17 enable/disable the IC, Movie(max 1/3 of Flash current) / Flash mode current,
18 Flash timeout, LVP(low voltage protection).
[all …]
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| /kernel/linux/linux-5.10/drivers/leds/trigger/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
6 This option enables trigger support for the leds class.
7 These triggers allow kernel events to drive the LEDs and can
15 This allows LEDs to be controlled by a programmable timer
18 For more details read Documentation/leds/leds-class.rst.
23 tristate "LED One-shot Trigger"
25 This allows LEDs to blink in one-shot pulses with parameters
39 This allows LEDs to be controlled by disk activity.
46 This allows LEDs to be controlled by MTD activity.
52 This allows LEDs to be controlled by a CPU load average.
[all …]
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| /kernel/linux/linux-6.6/drivers/leds/trigger/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
6 This option enables trigger support for the leds class.
7 These triggers allow kernel events to drive the LEDs and can
15 This allows LEDs to be controlled by a programmable timer
18 For more details read Documentation/leds/leds-class.rst.
23 tristate "LED One-shot Trigger"
25 This allows LEDs to blink in one-shot pulses with parameters
39 This allows LEDs to be controlled by disk activity.
46 This allows LEDs to be controlled by MTD activity.
52 This allows LEDs to be controlled by a CPU load average.
[all …]
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| /kernel/linux/linux-5.10/drivers/leds/ |
| D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
13 LEDs from both userspace and optionally, by kernel events (triggers).
20 This option enables the LED sysfs class in /sys/class/leds. You'll
21 need this to do anything useful with LEDs. If unsure, say N.
24 tristate "LED Flash Class Support"
27 This option enables the flash LED sysfs class in /sys/class/leds.
28 It wraps LED Class and adds flash LEDs specific sysfs attributes
30 for the flash related features of a LED device. It can be built
37 This option enables the multicolor LED sysfs class in /sys/class/leds.
40 for multicolor LEDs that are grouped together. This class is not
[all …]
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| /kernel/linux/linux-5.10/Documentation/devicetree/bindings/media/i2c/ |
| D | adp1653.txt | 1 * Analog Devices ADP1653 flash LED driver
5 - compatible: Must contain "adi,adp1653"
7 - reg: I2C slave address
9 - enable-gpios: Specifier of the GPIO connected to EN pin
11 There are two LED outputs available - flash and indicator. One LED is
12 represented by one child node, nodes need to be named "flash" and "indicator".
15 - led-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
17 Required properties of the flash LED child node:
19 - flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
20 - flash-timeout-us : see Documentation/devicetree/bindings/leds/common.txt
[all …]
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| /kernel/linux/linux-6.6/Documentation/devicetree/bindings/media/i2c/ |
| D | adp1653.txt | 1 * Analog Devices ADP1653 flash LED driver
5 - compatible: Must contain "adi,adp1653"
7 - reg: I2C slave address
9 - enable-gpios: Specifier of the GPIO connected to EN pin
11 There are two LED outputs available - flash and indicator. One LED is
12 represented by one child node, nodes need to be named "flash" and "indicator".
15 - led-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
17 Required properties of the flash LED child node:
19 - flash-max-microamp : see Documentation/devicetree/bindings/leds/common.txt
20 - flash-timeout-us : see Documentation/devicetree/bindings/leds/common.txt
[all …]
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| /kernel/linux/linux-6.6/Documentation/firmware-guide/acpi/dsd/ |
| D | leds.rst | 1 .. SPDX-License-Identifier: GPL-2.0
5 Describing and referring to LEDs in ACPI
8 Individual LEDs are described by hierarchical data extension [5] nodes under the
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
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
20 the same mechanism on ACPI is not possible. A mechanism to refer to non-device
21 ACPI nodes is documented in [data-node-ref].
26 individual LEDs. The value of the "reg" property is a contract between the
[all …]
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| /kernel/linux/linux-5.10/Documentation/firmware-guide/acpi/dsd/ |
| D | leds.rst | 1 .. SPDX-License-Identifier: GPL-2.0
5 Describing and referring to LEDs in ACPI
8 Individual LEDs are described by hierarchical data extension [6] nodes under the
10 tells the numerical ID of each individual LED output to which the LEDs are
14 Referring to LEDs in Device tree is documented in [4], in "flash-leds" property
15 documentation. In short, LEDs are directly referred to by using phandles.
19 mechanism on ACPI is not possible. A mechanism to refer to non-device ACPI nodes
25 individual LEDs. The value of the "reg" property is a contract between the
36 An ASL example of a camera sensor device and a LED driver device for two LEDs is
37 show below. Objects not relevant for LEDs or the references to them have been
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