Searched +full:w1 +full:- +full:gpio (Results 1 – 9 of 9) sorted by relevance
| /Documentation/w1/masters/ |
| D | w1-gpio.rst | 2 Kernel driver w1-gpio
9 -----------
11 GPIO 1-wire bus master driver. The driver uses the GPIO API to control the
12 wire and the GPIO pin can be specified using GPIO machine descriptor tables.
14 Documentation/devicetree/bindings/w1/w1-gpio.yaml
17 Example (mach-at91)
18 -------------------
22 #include <linux/gpio/machine.h>
23 #include <linux/w1-gpio.h>
26 .dev_id = "w1-gpio",
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| D | index.rst | 1 . SPDX-License-Identifier: GPL-2.0
4 1-wire Master Drivers
12 mxc-w1
13 omap-hdq
14 w1-gpio
15 w1-uart
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| /Documentation/devicetree/bindings/w1/ |
| D | w1-gpio.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/w1/w1-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Bitbanged GPIO 1-Wire Bus
10 - Daniel Mack <zonque@gmail.com>
14 const: w1-gpio
19 - description: Data I/O pin
20 - description: Enable pin for an external pull-up resistor
22 linux,open-drain:
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| D | w1.txt | 1 Generic devicetree bindings for onewire (w1) busses
5 Slave devices are listed as sub-nodes of such master devices. For now, only
12 compatible = "gpio-charger";
13 charger-type = "mains";
14 gpios = <&gpio 1 GPIO_ACTIVE_LOW>;
18 compatible = "w1-gpio";
19 gpios = <&gpio 100 0>, <&gpio 101 0>;
23 power-supplies = <&charger>;
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| /Documentation/driver-api/gpio/ |
| D | drivers-on-gpio.rst | 2 Subsystem drivers using GPIO
5 Note that standard kernel drivers exist for common GPIO tasks and will provide
6 the right in-kernel and userspace APIs/ABIs for the job, and that these
10 - leds-gpio: drivers/leds/leds-gpio.c will handle LEDs connected to GPIO
13 - ledtrig-gpio: drivers/leds/trigger/ledtrig-gpio.c will provide a LED trigger,
14 i.e. a LED will turn on/off in response to a GPIO line going high or low
15 (and that LED may in turn use the leds-gpio as per above).
17 - gpio-keys: drivers/input/keyboard/gpio_keys.c is used when your GPIO line
20 - gpio-keys-polled: drivers/input/keyboard/gpio_keys_polled.c is used when your
21 GPIO line cannot generate interrupts, so it needs to be periodically polled
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| /Documentation/w1/ |
| D | w1-generic.rst | 2 Introduction to the 1-wire (w1) subsystem
5 The 1-wire bus is a simple master-slave bus that communicates via a single
11 The w1 subsystem provides the framework for managing w1 masters and
14 All w1 slave devices must be connected to a w1 bus master device.
16 Example w1 master devices:
18 - DS9490 usb device
19 - W1-over-GPIO
20 - DS2482 (i2c to w1 bridge)
21 - Emulated devices, such as a RS232 converter, parallel port adapter, etc
24 What does the w1 subsystem do?
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| /Documentation/userspace-api/gpio/ |
| D | chardev.rst | 1 .. SPDX-License-Identifier: GPL-2.0
4 GPIO Character Device Userspace API
8 ``include/uapi/linux/gpio.h.``
18 Read Documentation/driver-api/gpio/drivers-on-gpio.rst to avoid reinventing
21 Similarly, for multi-function lines there may be other subsystems, such as
23 Documentation/driver-api/pwm.rst, Documentation/w1/index.rst etc, that
26 Basic examples using the character device API can be found in ``tools/gpio/*``.
28 The API is based around two major objects, the :ref:`gpio-v2-chip` and the
29 :ref:`gpio-v2-line-request`.
31 .. _gpio-v2-chip:
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| /Documentation/translations/zh_CN/driver-api/ |
| D | index.rst | 1 .. SPDX-License-Identifier: GPL-2.0
3 .. include:: ../disclaimer-zh_CN.rst
5 :Original: Documentation/driver-api/index.rst
24 gpio/index
30 * driver-model/index
34 * early-userspace/index
37 * device-io
38 * dma-buf
41 * message-based
44 * frame-buffer
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| /Documentation/driver-api/ |
| D | index.rst | 1 .. SPDX-License-Identifier: GPL-2.0
23 driver-model/index
38 early-userspace/index
40 device-io
42 dma-buf
44 io-mapping
46 uio-howto
47 vfio-mediated-device
49 vfio-pci-device-specific-driver-acceptance
51 Bus-level documentation
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