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/linux/drivers/input/touchscreen/
H A Dda9034-ts.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Copyright (C) 2006-2008 Marvell International Ltd.
66 static inline int is_pen_down(struct da9034_touch *touch) in is_pen_down() argument
68 return da903x_query_status(touch->da9034_dev, DA9034_STATUS_PEN_DOWN); in is_pen_down()
71 static inline int detect_pen_down(struct da9034_touch *touch, int on) in detect_pen_down() argument
74 return da903x_set_bits(touch->da9034_dev, in detect_pen_down()
77 return da903x_clr_bits(touch->da9034_dev, in detect_pen_down()
81 static int read_tsi(struct da9034_touch *touch) in read_tsi() argument
86 ret = da903x_read(touch->da9034_dev, DA9034_TSI_X_MSB, &_x); in read_tsi()
90 ret = da903x_read(touch->da9034_dev, DA9034_TSI_Y_MSB, &_y); in read_tsi()
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H A Dchipone_icn8318.c1 // SPDX-License-Identifier: GPL-2.0-or-later
34 __u8 event; member
61 .addr = client->addr, in icn8318_read_touch_data()
66 .addr = client->addr, in icn8318_read_touch_data()
73 return i2c_transfer(client->adapter, msg, 2); in icn8318_read_touch_data()
76 static inline bool icn8318_touch_active(u8 event) in icn8318_touch_active() argument
78 return (event == ICN8318_EVENT_UPDATE1) || in icn8318_touch_active()
79 (event == ICN8318_EVENT_UPDATE2); in icn8318_touch_active()
85 struct device *dev = &data->client->dev; in icn8318_irq()
89 ret = icn8318_read_touch_data(data->client, &touch_data); in icn8318_irq()
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H A Dgoodix_berlin_core.c1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2020 - 2021 Goodix, Inc.
18 * - ESD Management
19 * - Firmware update/flashing
20 * - "Config" update/flashing
21 * - Stylus Events
22 * - Gesture Events
23 * - Support for older revisions (A & B)
178 struct goodix_berlin_event event; member
190 for (i = 0; i < size - GOODIX_BERLIN_CHECKSUM_SIZE; i++) in goodix_berlin_checksum_valid()
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H A Ds6sy761.c1 // SPDX-License-Identifier: GPL-2.0
60 /* event id */
64 /* event register masks */
74 /* event touch state values */
122 .addr = sdata->client->addr, in s6sy761_read_events()
127 .addr = sdata->client->addr, in s6sy761_read_events()
130 .buf = sdata->data + S6SY761_EVENT_SIZE, in s6sy761_read_events()
135 ret = i2c_transfer(sdata->client->adapter, msgs, ARRAY_SIZE(msgs)); in s6sy761_read_events()
139 return ret == ARRAY_SIZE(msgs) ? 0 : -EIO; in s6sy761_read_events()
143 u8 *event, u8 tid) in s6sy761_report_coordinates() argument
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H A Dchipone_icn8505.c1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright (c) 2015-2018 Red Hat Inc.
54 u8 event; member
96 buf[i] = (reg_addr >> (reg_addr_width - (i + 1) * 8)) & 0xff; in icn8505_read_xfer()
98 ret = i2c_transfer(client->adapter, msg, 2); in icn8505_read_xfer()
101 ret = -EIO; in icn8505_read_xfer()
103 dev_err(&client->dev, in icn8505_read_xfer()
116 u8 buf[3 + 32]; /* 3 bytes for 24 bit reg-addr + 32 bytes max len */ in icn8505_write_xfer()
125 return -EINVAL; in icn8505_write_xfer()
128 buf[i] = (reg_addr >> (reg_addr_width - (i + 1) * 8)) & 0xff; in icn8505_write_xfer()
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H A Dstmfts.c1 // SPDX-License-Identifier: GPL-2.0
54 /* multi touch related event masks */
61 /* key related event masks */
116 if (value != sdata->led_status && sdata->ledvdd) { in stmfts_brightness_set()
118 regulator_disable(sdata->ledvdd); in stmfts_brightness_set()
120 err = regulator_enable(sdata->ledvdd); in stmfts_brightness_set()
122 dev_warn(&sdata->client->dev, in stmfts_brightness_set()
128 sdata->led_status = value; in stmfts_brightness_set()
139 return !!regulator_is_enabled(sdata->ledvdd); in stmfts_brightness_get()
151 .addr = sdata->client->addr, in stmfts_read_events()
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H A Dmainstone-wm97xx.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * mainstone-wm97xx.c -- Mainstone Continuous Touch screen driver for
12 * This is a wm97xx extended touch driver to capture touch
16 * - codecs supported:- WM9705, WM9712, WM9713
17 * - processors supported:- Intel XScale PXA25x, PXA26x, PXA27x
31 #include <sound/pxa2xx-lib.h>
33 #include <asm/mach-types.h>
74 * event. If the irq request fails then it will fall back to polling mode.
90 * AC97 touch data slot.
92 * Touch screen readback data ac97 slot
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/linux/Documentation/input/
H A Dmulti-touch-protocol.rst4 Multi-touch (MT) Protocol
7 :Copyright: |copy| 2009-2010 Henrik Rydberg <rydberg@euromail.se>
11 ------------
13 In order to utilize the full power of the new multi-touch and multi-user
16 document describes the multi-touch (MT) protocol which allows kernel
23 describes how to send updates for individual contacts via event slots.
30 --------------
34 packet. Since these events are ignored by current single-touch (ST)
40 event, which instructs the receiver to accept the data for the current
45 This generates an ABS_MT_SLOT event, which instructs the receiver to
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H A Devent-codes.rst1 .. _input-event-codes:
4 Input event codes
12 A single hardware event generates multiple input events. Each input event
13 contains the new value of a single data item. A special event type, EV_SYN, is
15 the same moment in time. In the following, the term "event" refers to a single
16 input event encompassing a type, code, and value.
19 of event codes have changed. However, the state is maintained within the Linux
22 event code values using the EVIOCG* ioctls defined in linux/input.h. The event
24 class/input/event*/device/capabilities/, and the properties of a device are
25 provided in class/input/event*/device/properties.
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/linux/tools/testing/selftests/hid/tests/
H A Dtest_sony.py2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
43 for x in range(-32000, 32000, 4000):
44 r = uhdev.event(accel=(x, None, None))
51 # to inverse calibration, followed by calibration by hid-sony.
52 assert x - 1 <= value <= x + 1
54 for y in range(-32000, 32000, 4000):
55 r = uhdev.event(accel=(None, y, None))
61 assert y - 1 <= value <= y + 1
63 for z in range(-32000, 32000, 4000):
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H A Dtest_wacom_generic.py2 # SPDX-License-Identifier: GPL-2.0
3 # -*- coding: utf-8 -*-
86 state is "unchanged" since the previous event.
111 number and tool-type identifier. Values of ``0`` may sometimes be
112 used for the out-of-range condition.
150 range 0 cm - 5 cm) and exact unit comparison (e.g. 1 inch is
151 not within the range 0 cm - 5 cm).
153 phys_size = (field.physical_max - field.physical_min) * 10 ** (field.unit_exp)
173 self.ring = -1
264 def event(self, x, y, pressure, buttons=None, toolid=None, proximity=None): member in BaseTablet
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/linux/Documentation/devicetree/bindings/input/touchscreen/
H A Dazoteq,iqs7211.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS7210A, IQS7211A and IQS7211E trackpad and touchscreen control-
14 lers employ projected-capacitance sensing and can track two contacts.
21 - azoteq,iqs7210a
22 - azoteq,iqs7211a
23 - azoteq,iqs7211e
28 irq-gpios:
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H A Dbu21013.txt1 * Rohm BU21013 Touch Screen
4 - compatible : "rohm,bu21013_tp"
5 - reg : I2C device address
6 - reset-gpios : GPIO pin enabling (selecting) chip (CS)
7 - interrupt-parent : the phandle for the gpio controller
8 - interrupts : (gpio) interrupt to which the chip is connected
11 - touch-gpios : GPIO pin registering a touch event
12 - <supply_name>-supply : Phandle to a regulator supply
13 - touchscreen-size-x : General touchscreen binding, see [1].
14 - touchscreen-size-y : General touchscreen binding, see [1].
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H A Dfsl,imx6ul-tsc.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/touchscreen/fsl,imx6ul-tsc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale i.MX6UL Touch Controller
10 - Haibo Chen <haibo.chen@nxp.com>
11 - Shawn Guo <shawnguo@kernel.org>
12 - Sascha Hauer <s.hauer@pengutronix.de>
16 const: fsl,imx6ul-tsc
20 - description: touch controller address
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/linux/Documentation/devicetree/bindings/input/
H A Diqs269a.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Azoteq IQS269A Capacitive Touch Controller
10 - Jeff LaBundy <jeff@labundy.com>
13 - $ref: input.yaml#
16 The Azoteq IQS269A is an 8-channel capacitive touch controller that features
17 additional Hall-effect and inductive sensing capabilities.
24 - azoteq,iqs269a
25 - azoteq,iqs269a-00
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H A Dazoteq,iqs7222.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Azoteq IQS7222A/B/C/D Capacitive Touch Controller
10 - Jeff LaBundy <jeff@labundy.com>
14 capacitive touch controllers that feature additional sensing capabilities.
21 - azoteq,iqs7222a
22 - azoteq,iqs7222b
23 - azoteq,iqs7222c
24 - azoteq,iqs7222d
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H A Diqs626a.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Azoteq IQS626A Capacitive Touch Controller
10 - Jeff LaBundy <jeff@labundy.com>
13 The Azoteq IQS626A is a 14-channel capacitive touch controller that features
14 additional Hall-effect and inductive sensing capabilities.
19 - $ref: touchscreen/touchscreen.yaml#
31 "#address-cells":
34 "#size-cells":
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H A Diqs62x-keys.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/input/iqs62x-keys.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Jeff LaBundy <jeff@labundy.com>
13 - $ref: input.yaml#
16 The Azoteq IQS620A, IQS621, IQS622, IQS624 and IQS625 multi-function sensors
17 feature a variety of self-capacitive, mutual-inductive and Hall-effect sens-
23 further details and examples. Sensor hardware configuration (self-capacitive
24 vs. mutual-inductive, etc.) is selected based on the device's firmware.
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H A Datmel,captouch.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Atmel capacitive touch device
10 - Dharma balasubiramani <dharma.b@microchip.com>
13 Atmel capacitive touch device, typically an Atmel touch sensor connected to
17 - $ref: input.yaml#
34 - compatible
35 - reg
36 - interrupts
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/linux/include/xen/interface/io/
H A Dkbdif.h1 /* SPDX-License-Identifier: MIT */
3 * kbdif.h -- Xen virtual keyboard/mouse
17 * The two halves of a para-virtual driver utilize nodes within
31 *---------------------------- Features supported ----------------------------
37 * feature-disable-keyboard
43 * feature-disable-pointer
49 * feature-abs-pointer
55 * feature-multi-touch
58 * Backends, which support reporting of multi-touch events
61 * feature-raw-pointer
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/linux/tools/perf/tests/shell/
H A Dtest_arm_coresight.sh9 # SPDX-License-Identifier: GPL-2.0
15 perf list | grep -q 'cs_etm//' && return 0
17 # cs_etm event doesn't exist
28 rm -f ${perfdata}
29 rm -f ${file}
30 rm -f "${perfdata}.old"
31 trap - EXIT TERM INT
39 rm -
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/linux/drivers/hid/
H A Dhid-magicmouse.c1 // SPDX-License-Identifier: GPL-2.0-or-later
21 #include "hid-ids.h"
27 static int middle_button_start = -350;
39 return -EINVAL; in param_set_scroll_speed()
52 …ARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event");
65 * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
66 * to be some kind of bit mask -- 0x20 may be a near-field reading,
75 /* Number of high-resolution events for each low-resolution detent. */
81 /* Touch surface information. Dimension is in hundredths of a mm, min and max
84 #define MOUSE_MIN_X -1100
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/linux/drivers/input/mouse/
H A Dsynaptics_i2c.c230 static inline void set_scan_rate(struct synaptics_i2c *touch, int scan_rate) in set_scan_rate() argument
232 touch->scan_ms = MSEC_PER_SEC / scan_rate; in set_scan_rate()
233 touch->scan_rate_param = scan_rate; in set_scan_rate()
311 dev_err(&client->dev, "Unable to reset device\n"); in synaptics_i2c_reset_config()
316 dev_err(&client->dev, "Unable to config device\n"); in synaptics_i2c_reset_config()
335 static bool synaptics_i2c_get_input(struct synaptics_i2c *touch) in synaptics_i2c_get_input() argument
337 struct input_dev *input = touch->input; in synaptics_i2c_get_input()
343 if (synaptics_i2c_check_error(touch->client)) in synaptics_i2c_get_input()
347 data = synaptics_i2c_reg_get(touch->client, DATA_REG0); in synaptics_i2c_get_input()
354 xy_delta = synaptics_i2c_word_get(touch->client, REL_X_REG) & 0xffff; in synaptics_i2c_get_input()
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/linux/Documentation/w1/
H A Dw1-netlink.rst21 [struct cn_msg] - connector header.
23 [struct w1_netlink_msg] - w1 netlink header.
24 __u8 type - message type.
36 (read/write/touch)
37 __u8 status - error indication from kernel
38 __u16 len - size of data attached to this header data
40 __u8 id[8]; - slave unique device id
42 __u32 id; - master's id
43 __u32 res; - reserved
47 [struct w1_netlink_cmd] - command for given master or slave device.
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/linux/Documentation/input/devices/
H A Dbcm5974.rst3 ------------------------
5 ------------------------
7 :Copyright: |copy| 2008-2009 Henrik Rydberg <rydberg@euromail.se>
10 part of the touchd user-space driver project:
16 :Copyright: |copy| 2001-2004 Greg Kroah-Hartman (greg@kroah.com)
19 :Copyright: |copy| 2005 Frank Arnold (frank@scirocco-5v-turbo.de)
21 :Copyright: |copy| 2005 Michael Hanselmann (linux-kernel@hansmi.ch)
24 This driver adds support for the multi-touch trackpad on the new Apple
33 -----
36 becomes available both as an event device (/dev/input/event*) and as a
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