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/linux-6.14.4/Documentation/devicetree/bindings/input/
Dhid-over-i2c.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/input/hid-over-i2c.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: HID over I2C Devices
10 - Benjamin Tissoires <[email protected]>
11 - Jiri Kosina <[email protected]>
14 HID over I2C provides support for various Human Interface Devices over the
15 I2C bus. These devices can be for example touchpads, keyboards, touch screens
19 https://msdn.microsoft.com/en-us/library/windows/hardware/hh852380.aspx
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Dgoodix,gt7986u-spifw.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/goodix,gt7986u-spifw.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Goodix GT7986U SPI HID Touchscreen
10 - Charles Wang <[email protected]>
14 This touch controller reports data packaged according to the HID protocol
15 over the SPI bus, but it is incompatible with Microsoft's HID-over-SPI protocol.
18 GT7986U when the chip is running I2C firmware. This is because there's
19 not a single device that talks over both I2C and SPI but rather
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/linux-6.14.4/drivers/hid/i2c-hid/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "I2C HID support"
5 depends on I2C
10 tristate "HID over I2C transport layer ACPI driver"
16 other HID based devices which is connected to your computer via I2C.
17 This driver supports ACPI-based systems.
22 will be called i2c-hid-acpi. It will also build/depend on the
23 module i2c-hid.
26 tristate "HID over I2C transport layer Open Firmware driver"
28 # (board-file) instantiated "hid-over-i2c" type i2c-clients.
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Di2c-hid-of.c2 * HID over I2C Open Firmware Subclass
9 * "USB HID support for Linux":
12 * Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
13 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
14 * Copyright (c) 2007-2008 Oliver Neukum
15 * Copyright (c) 2006-2010 Jiri Kosina
25 #include <linux/hid.h>
26 #include <linux/i2c.h>
33 #include "i2c-hid.h"
48 struct device *dev = &ihid_of->client->dev; in i2c_hid_of_power_up()
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Di2c-hid-acpi.c2 * HID over I2C ACPI Subclass
9 * "USB HID support for Linux":
12 * Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
13 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
14 * Copyright (c) 2007-2008 Oliver Neukum
15 * Copyright (c) 2006-2010 Jiri Kosina
24 #include <linux/i2c.h>
30 #include "i2c-hid.h"
40 * ICN8505 controller, has a _CID of PNP0C50 but is not HID compatible.
51 /* HID I²C Device: 3cdff6f7-4267-4555-ad05-b30a3d8938de */
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Di2c-hid-core.c2 * HID over I2C protocol implementation
8 * This code is partly based on "USB HID support for Linux":
11 * Copyright (c) 2000-2005 Vojtech Pavlik <[email protected]>
12 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
13 * Copyright (c) 2007-2008 Oliver Neukum
14 * Copyright (c) 2006-2010 Jiri Kosina
22 #include <linux/i2c.h>
37 #include <linux/hid.h>
43 #include "../hid-ids.h"
44 #include "i2c-hid.h"
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/linux-6.14.4/arch/arm64/boot/dts/mediatek/
Dmt8173-elm-hana.dtsi1 // SPDX-License-Identifier: GPL-2.0-only
6 #include "mt8173-elm.dtsi"
9 clock-frequency = <200000>;
16 interrupts-extended = <&pio 88 IRQ_TYPE_LEVEL_LOW>;
17 status = "fail-needs-probe";
22 * Gen (MTK) are using synaptics touchscreen (hid-over-i2c driver) as a
26 compatible = "hid-over-i2c";
28 hid-descr-addr = <0x0020>;
29 interrupts-extended = <&pio 88 IRQ_TYPE_LEVEL_LOW>;
30 status = "fail-needs-probe";
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Dmt8183-kukui-jacuzzi-willow.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
11 compatible = "hid-over-i2c";
14 pinctrl-names = "default";
15 pinctrl-0 = <&touchscreen_pins>;
17 interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
19 post-power-on-delay-ms = <70>;
20 hid-descr-addr = <0x0001>;
26 compatible = "hid-over-i2c";
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Dmt8183-kukui-jacuzzi-fennel.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
10 mediatek,dmic-mode = <1>; /* one-wire */
15 compatible = "hid-over-i2c";
17 hid-descr-addr = <0x20>;
19 pinctrl-names = "default";
20 pinctrl-0 = <&trackpad_pins>;
22 interrupts-extended = <&pio 7 IRQ_TYPE_LEVEL_LOW>;
24 wakeup-source;
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Dmt8183-kukui-jacuzzi-pico.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
8 #include "mt8183-kukui-audio-ts3a227e-max98357a.dtsi"
12 chassis-type = "convertible";
13 compatible = "google,pico-sku1", "google,pico", "mediatek,mt8183";
17 google,remote-bus = <0>;
21 i2c-scl-internal-delay-ns = <25000>;
24 compatible = "hid-over-i2c";
26 hid-descr-addr = <0x20>;
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Dmt8183-kukui-jacuzzi-burnet.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
8 #include "mt8183-kukui-audio-ts3a227e-max98357a.dtsi"
12 chassis-type = "convertible";
17 mediatek,dmic-mode = <1>; /* one-wire */
22 compatible = "hid-over-i2c";
24 pinctrl-names = "default";
25 pinctrl-0 = <&touchscreen_pins>;
26 interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
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Dmt8183-kukui-jacuzzi-cozmo.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
8 #include "mt8183-kukui-audio-ts3a227e-max98357a.dtsi"
12 chassis-type = "laptop";
17 google,remote-bus = <0>;
21 i2c-scl-internal-delay-ns = <25000>;
24 compatible = "hid-over-i2c";
26 hid-descr-addr = <0x20>;
28 pinctrl-names = "default";
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Dmt8183-kukui-jacuzzi-damu.dts1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
8 #include "mt8183-kukui-audio-da7219-max98357a.dtsi"
12 chassis-type = "convertible";
19 compatible = "hid-over-i2c";
21 interrupts-extended = <&pio 155 IRQ_TYPE_LEVEL_LOW>;
22 pinctrl-names = "default";
23 pinctrl-0 = <&touchscreen_pins>;
25 post-power-on-delay-ms = <10>;
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Dmt8183-kukui-jacuzzi-juniper.dtsi1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
6 /dts-v1/;
7 #include "mt8183-kukui-jacuzzi.dtsi"
11 compatible = "hid-over-i2c";
13 hid-descr-addr = <0x20>;
15 pinctrl-names = "default";
16 pinctrl-0 = <&trackpad_pins>;
18 interrupts-extended = <&pio 7 IRQ_TYPE_LEVEL_LOW>;
20 wakeup-source;
25 qcom,ath10k-calibration-variant = "GO_JUNIPER";
/linux-6.14.4/arch/arm64/boot/dts/qcom/
Dmsm8998-asus-novago-tp370ql.dts1 // SPDX-License-Identifier: GPL-2.0
4 /dts-v1/;
6 #include "msm8998-clamshell.dtsi"
10 compatible = "asus,novago-tp370ql", "qcom,msm8998";
11 chassis-type = "convertible";
18 compatible = "hid-over-i2c";
20 pinctrl-names = "default";
21 pinctrl-0 = <&touchpad>;
23 interrupt-parent = <&tlmm>;
26 hid-descr-addr = <0x0001>;
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Dmsm8998-lenovo-miix-630.dts1 // SPDX-License-Identifier: GPL-2.0
4 /dts-v1/;
6 #include <dt-bindings/pinctrl/qcom,pmic-gpio.h>
7 #include "msm8998-clamshell.dtsi"
11 compatible = "lenovo,miix-630", "qcom,msm8998";
12 chassis-type = "convertible";
14 gpio-keys {
15 compatible = "gpio-keys";
18 pinctrl-0 = <&vol_up_pin_a>;
19 pinctrl-names = "default";
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Dsc7280-crd-r3.dts1 // SPDX-License-Identifier: BSD-3-Clause
8 /dts-v1/;
10 #include "sc7280-idp.dtsi"
11 #include "sc7280-idp-ec-h1.dtsi"
14 model = "Qualcomm Technologies, Inc. sc7280 CRD platform (rev3 - 4)";
15 compatible = "qcom,sc7280-crd",
16 "google,hoglin-rev3", "google,hoglin-rev4",
17 "google,piglin-rev3", "google,piglin-rev4",
25 stdout-path = "serial0:115200n8";
30 regulators-2 {
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Dsdm850-lenovo-yoga-c630.dts1 // SPDX-License-Identifier: BSD-3-Clause
8 /dts-v1/;
10 #include <dt-bindings/input/gpio-keys.h>
11 #include <dt-bindings/input/input.h>
12 #include <dt-bindings/regulator/qcom,rpmh-regulator.h>
13 #include <dt-bindings/sound/qcom,q6afe.h>
14 #include <dt-bindings/sound/qcom,q6asm.h>
16 #include "sdm845-wcd9340.dtsi"
24 /delete-node/ &ipa_fw_mem;
25 /delete-node/ &ipa_gsi_mem;
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Dsc7280-herobrine-crd.dts1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 /dts-v1/;
10 #include "sc7280-herobrine.dtsi"
11 #include "sc7280-herobrine-audio-wcd9385.dtsi"
12 #include "sc7280-herobrine-lte-sku.dtsi"
27 vreg_edp_bl_crd: vreg-edp-bl-crd-regulator {
28 compatible = "regulator-fixed";
29 regulator-name = "vreg_edp_bl_crd";
32 enable-active-high;
33 pinctrl-names = "default";
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/linux-6.14.4/drivers/hid/intel-thc-hid/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
4 menu "Intel THC HID Support"
13 is comprised of 3 key functional blocks: A natively half-duplex
14 Quad I/O capable SPI master; a low latency I2C interface to support
25 HIDSPI (HID over SPI) protocol. It configures THC to work at SPI
36 HIDI2C (HID over I2C) protocol. It configures THC to work in I2C
/linux-6.14.4/drivers/hid/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # HID driver configuration
6 bool "HID bus support"
10 This option adds core support for human interface device (HID).
15 config HID config
16 tristate "HID bus core support"
20 A human interface device (HID) is a type of computer device that
21 interacts directly with and takes input from humans. The term "HID"
22 most commonly used to refer to the USB-HID specification, but other
24 designed using HID specification (this involves certain keyboards,
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/linux-6.14.4/Documentation/driver-api/surface_aggregator/
Doverview.rst1 .. SPDX-License-Identifier: GPL-2.0+
10 its responsibilities and feature-set have since been expanded significantly
23 sensors (e.g. skin temperature) and cooling/performance-mode setting to the
27 and 2 it is required for keyboard HID input. This HID subsystem has been
29 Laptop 3 and Surface Book 3, is responsible for all major HID input (i.e.
36 SAN), translating ACPI generic serial bus write-/read-accesses to SAM
40 harder to discover and requiring us to hard-code a sort of device registry.
50 communicate via HID, specifically using a HID-over-I2C device, whereas on
55 SAM-over-SSH and SAM-over-HID.
57 Currently, this subsystem only supports SAM-over-SSH. The SSH communication
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/linux-6.14.4/Documentation/hid/
Dintel-thc-hid.rst1 .. SPDX-License-Identifier: GPL-2.0
10 - A natively half-duplex Quad I/O capable SPI master
11 - Low latency I2C interface to support HIDI2C compliant devices
12 - A HW sequencer with RW DMA capability to system memory
15 Host driver configures and controls the touch devices over THC interface. THC provides high
16 bandwidth DMA services to the touch driver and transfers the HID report to host system main memory.
22 Unlike other common SPI/I2C controllers, THC handles the HID device data interrupt and reset
29 -------------------------------
31 Below diagram illustrates the high-level architecture of THC software/hardware stack, which is fully
36 ----------------------------------------------
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/linux-6.14.4/drivers/iio/gyro/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
45 tristate "Analog Devices ADXRS290 Dual-Axis MEMS Gyroscope SPI driver"
68 depends on (I2C || SPI_MASTER)
71 select BMG160_I2C if (I2C)
74 Say yes here to build support for BOSCH BMG160 Tri-axis Gyro Sensor
75 driver connected via I2C or SPI. This driver also supports BMI055
93 select FXAS21002C_I2C if (I2C)
95 depends on (I2C || SPI_MASTER)
97 Say yes here to build support for NXP FXAS21002C Tri-axis Gyro
98 Sensor driver connected via I2C or SPI.
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/linux-6.14.4/drivers/staging/greybus/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
12 will be called gb-audio.ko
20 bridge from an APB-I2S port to a Unipro network.
23 will be called gb-audio-codec.ko
33 will be called gb-bootrom.ko
43 will be called gb-camera.ko
53 will be called gb-firmware.ko
56 tristate "Greybus HID Class driver"
57 depends on HID && INPUT
60 Greybus HID Class specification.
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