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/linux/Documentation/input/devices/
H A Djoystick-parport.rst3 .. _joystick-parport:
9 :Copyright: |copy| 1998-2000 Vojtech Pavlik <vojtech@ucw.cz>
10 :Copyright: |copy| 1998 Andree Borrmann <a.borrmann@tu-bs.de>
18 Any information in this file is provided as-is, without any guarantee that
36 Many console and 8-bit computer gamepads and joysticks are supported. The
40 ------------
50 and/or SNES gamepads and/or SNES mice connected to the parallel port at once,
59 for your pads, use either keyboard or joystick port, and make a pass-through
69 (pin 9) -----> Power
77 (pin 9) ----|>|-------+------> Power
[all …]
/linux/Documentation/hwmon/
H A Dntc_thermistor.rst30 -----------
52 +----+-----------------------[read_uV]
56 -+- (ground)
58 2. connect = NTC_CONNECTED_POSITIVE, pullup_ohm = 0 (not-connected)::
64 +----------------------------[read_uV]
68 -+- (ground)
76 +----+-----------------------[read_uV]
80 -+----+- (ground)
82 4. connect = NTC_CONNECTED_GROUND, pulldown_ohm = 0 (not-connected)::
88 +----------------------------[read_uV]
[all …]
H A Dadm1026.rst16 - Philip Pokorny <ppokorny@penguincomputing.com> for Penguin Computing
17 - Justin Thiessen <jthiessen@penguincomputing.com>
20 -----------------
23 List of GPIO pins (0-16) to program as inputs
26 List of GPIO pins (0-16) to program as outputs
29 List of GPIO pins (0-16) to program as inverted
32 List of GPIO pins (0-16) to program as normal/non-inverted
35 List of GPIO pins (0-7) to program as fan tachs
39 -----------
45 16 general purpose digital I/O lines, eight (8) fan speed sensors (8-bit),
[all …]
/linux/Documentation/devicetree/bindings/mfd/
H A Dsamsung,s2mps11.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Krzysztof Kozlowski <krzk@kernel.org>
18 sub-blocks.
23 - samsung,s2mpg10-pmic
24 - samsung,s2mps11-pmic
25 - samsung,s2mps13-pmic
26 - samsung,s2mps14-pmic
27 - samsung,s2mps15-pmic
[all …]
/linux/Documentation/devicetree/bindings/iio/proximity/
H A Dsemtech,sx9310.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Daniel Campello <campello@chromium.org>
16 https://www.semtech.com/products/smart-sensing/sar-sensors/sx9310
19 - $ref: /schemas/iio/iio.yaml#
24 - semtech,sx9310
25 - semtech,sx9311
37 vdd-supply:
40 svdd-supply:
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/linux/Documentation/networking/
H A Dplip.rst1 .. SPDX-License-Identifier: GPL-2.0
14 -----------------
17 This device interface allows a point-to-point connection between two
25 printer port. PLIP is a non-standard, but [can use] uses the standard
26 LapLink null-printer cable [can also work in turbo mode, with a PLIP
62 -------------------
77 On these machines, the PLIP driver can be used in IRQ-less mode, where
82 indicate that there isn't a noticeable performance drop when using IRQ-less
92 When in IRQ-less mode, the PLIP driver polls the parallel port HZ times
99 10^6/HZ usecs. If both sides of a PLIP connection are used in IRQ-less mode,
[all …]
/linux/Documentation/w1/
H A Dw1-generic.rst2 Introduction to the 1-wire (w1) subsystem
5 The 1-wire bus is a simple master-slave bus that communicates via a single
6 signal wire (plus ground, so two wires).
8 Devices communicate on the bus by pulling the signal to ground via an open
14 All w1 slave devices must be connected to a w1 bus master device.
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
25 ------------------------------
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/linux/arch/arm64/boot/dts/qcom/
H A Dsc7180-trogdor-lazor.dtsi1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
8 #include "sc7180-trogdor-clamshell.dtsi"
11 semtech,cs0-ground;
12 semtech,combined-sensors = <3>;
14 semtech,startup-sensor = <0>;
15 semtech,proxraw-strength = <8>;
16 semtech,avg-pos-strength = <64>;
34 clock-frequency = <400000>;
37 compatible = "hid-over-i2c";
39 pinctrl-names = "default";
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/linux/drivers/extcon/
H A Dextcon-max77843.c1 // SPDX-License-Identifier: GPL-2.0+
3 // extcon-max77843.c - Maxim MAX77843 extcon driver to support
9 #include <linux/extcon-provider.h>
13 #include <linux/mfd/max77693-common.h>
14 #include <linux/mfd/max77843-private.h>
141 { MAX77843_MUIC_IRQ_INT1_ADC, "MUIC-ADC" },
142 { MAX77843_MUIC_IRQ_INT1_ADCERROR, "MUIC-ADC_ERROR" },
143 { MAX77843_MUIC_IRQ_INT1_ADC1K, "MUIC-ADC1K" },
144 { MAX77843_MUIC_IRQ_INT2_CHGTYP, "MUIC-CHGTYP" },
145 { MAX77843_MUIC_IRQ_INT2_CHGDETRUN, "MUIC-CHGDETRUN" },
[all …]
/linux/include/linux/
H A Di2c-of-prober.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
18 * struct i2c_of_probe_ops - I2C OF component prober callbacks
36 * It is OK for this callback to return -EPROBE_DEFER since the intended use includes
61 * struct i2c_of_probe_cfg - I2C OF component prober configuration
77 * Components such as trackpads are commonly connected to a devices baseboard
78 * with a 6-pin ribbon cable. That gives at most one voltage supply and one
80 * pin, and common ground. Touchscreens, while integrated into the display
94 * struct i2c_of_probe_simple_opts - Options for simple I2C component prober callbacks
106 * * @gpio_name is configured to the non-active setting according to @gpio_assert_to_enable.
/linux/drivers/net/can/sja1000/
H A Dems_pcmcia.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (C) 2010 Markus Plessing <plessing@ems-wuensche.com>
22 MODULE_AUTHOR("Markus Plessing <plessing@ems-wuensche.com>");
23 MODULE_DESCRIPTION("Socket-CAN driver for EMS CPC-CARD cards");
39 * RX1 is connected to ground.
40 * TX1 is not connected.
41 * CLKO is not connected.
43 * This means normal output mode , push-pull and the correct polarity.
54 #define EMS_PCMCIA_MEM_SIZE 4096 /* Size of the remapped io-memory */
63 PCMCIA_DEVICE_PROD_ID123("EMS_T_W", "CPC-Card", "V2.0", 0xeab1ea23,
[all …]
H A Dkvaser_pci.c1 // SPDX-License-Identifier: GPL-2.0-only
7 * - Kvaser linux driver, version 4.72 BETA
8 * Copyright (C) 2002-2007 KVASER AB
10 * - Lincan driver, version 0.3.3, OCERA project
14 * - Socketcan SJA1000 drivers
16 * Copyright (c) 2002-2007 Volkswagen Group Electronic Research
35 MODULE_DESCRIPTION("Socket-CAN driver for KVASER PCAN PCI cards");
43 struct net_device *slave_dev[MAX_NO_OF_CHANNELS-1];
54 * RX1 is connected to ground.
55 * TX1 is not connected.
[all …]
H A Dems_pci.c1 // SPDX-License-Identifier: GPL-2.0-only
4 * Copyright (C) 2008 Markus Plessing <plessing@ems-wuensche.com>
5 * Copyright (C) 2008 Sebastian Haas <haas@ems-wuensche.com>
23 MODULE_AUTHOR("Sebastian Haas <support@ems-wuensche.com>");
24 MODULE_AUTHOR("Gerhard Uttenthaler <uttenthaler@ems-wuensche.com>");
25 MODULE_DESCRIPTION("Socket-CAN driver for EMS CPC-PCI/PCIe/104P CAN cards");
48 * PSB4610 PITA-2 bridge control registers
76 * RX1 is connected to ground.
77 * TX1 is not connected.
78 * CLKO is not connected.
[all …]
/linux/drivers/gpio/
H A Dgpio-bd71815.c1 // SPDX-License-Identifier: GPL-2.0
8 * Author: yanglsh@embest-tech.com
18 #include <linux/mfd/rohm-bd71815.h>
33 ret = regmap_read(bd71815->regmap, BD71815_REG_GPO, &val); in bd71815gpo_get()
49 return regmap_set_bits(bd71815->regmap, BD71815_REG_GPO, bit); in bd71815gpo_set()
51 return regmap_clear_bits(bd71815->regmap, BD71815_REG_GPO, bit); in bd71815gpo_set()
61 return regmap_update_bits(bdgpio->regmap, in bd71815_gpio_set_config()
66 return regmap_update_bits(bdgpio->regmap, in bd71815_gpio_set_config()
73 return -ENOTSUPP; in bd71815_gpio_set_config()
102 * connected to the ground is a bad idea. Thus we do not support it by default.
[all …]
/linux/drivers/mfd/
H A Ducb1x00-ts.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * Touchscreen driver for UCB1x00-based touchscreens
8 * 21-Jan-2002 <jco@ict.es> :
13 * It is important to note that the signal connected to the ADCSYNC
34 #include <asm/mach-types.h>
56 struct input_dev *idev = ts->idev; in ucb1x00_ts_evt_add()
67 struct input_dev *idev = ts->idev; in ucb1x00_ts_event_release()
79 ucb1x00_reg_write(ts->ucb, UCB_TS_CR, in ucb1x00_ts_mode_int()
92 ucb1x00_io_write(ts->ucb, COLLIE_TC35143_GPIO_TBL_CHK, 0); in ucb1x00_ts_read_pressure()
93 ucb1x00_reg_write(ts->ucb, UCB_TS_CR, in ucb1x00_ts_read_pressure()
[all …]
/linux/Documentation/driver-api/
H A Dedac.rst5 ----------------------------------------
8 *sockets, *socket sets*, *banks*, *rows*, *chip-select rows*, *channels*,
13 creating a common ground for discussion, terms and their definitions
43 It is typically the highest hierarchy on a Fully-Buffered DIMM memory
52 * Single-channel
55 only. E. g. if the data is 64 bits-wide, the data flows to the CPU using
57 memories. FB-DIMM and RAMBUS use a different concept for channel, so
60 * Double-channel
63 dimms, accessed at the same time. E. g. if the DIMM is 64 bits-wide (72
67 * Chip-select row
[all …]
/linux/drivers/leds/flash/
H A Dleds-rt8515.c1 // SPDX-License-Identifier: GPL-2.0-or-later
10 * from the RT8515 to the LED, with two resistors connected
11 * from the pins "RFS" and "RTS" to ground.
28 #include <linux/led-class-flash.h>
35 #include <media/v4l2-flash-led-class.h>
37 /* We can provide 15-700 mA out to the LED */
40 /* The maximum intensity is 1-16 for flash and 1-100 for torch */
68 gpiod_set_value(rt->enable_flash, 0); in rt8515_gpio_led_off()
69 gpiod_set_value(rt->enable_torch, 0); in rt8515_gpio_led_off()
96 mutex_lock(&rt->lock); in rt8515_led_brightness_set()
[all …]
/linux/Documentation/devicetree/bindings/phy/
H A Dnvidia,tegra20-usb-phy.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/phy/nvidia,tegra20-usb-phy.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Dmitry Osipenko <digetx@gmail.com>
11 - Jon Hunter <jonathanh@nvidia.com>
12 - Thierry Reding <thierry.reding@gmail.com>
17 - items:
18 - enum:
19 - nvidia,tegra124-usb-phy
[all …]
/linux/Documentation/devicetree/bindings/net/wireless/
H A Dmediatek,mt76.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 # Copyright (c) 2018-2019 The Linux Foundation. All rights reserved.
4 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Felix Fietkau <nbd@nbd.name>
12 - Lorenzo Bianconi <lorenzo@kernel.org>
13 - Ryder Lee <ryder.lee@mediatek.com>
18 node of the PCI controller to which the wireless chip is connected.
25 - mediatek,mt76
26 - mediatek,mt7628-wmac
[all …]
/linux/drivers/auxdisplay/
H A Dpanel.c1 // SPDX-License-Identifier: GPL-2.0+
4 * Copyright (C) 2000-2008, Willy Tarreau <w@1wt.eu>
5 * Copyright (C) 2016-2017 Glider bvba
8 * connected to a parallel printer port.
10 * The LCD module may either be an HD44780-like 8-bit parallel LCD, or a 1-bit
11 * serial module compatible with Samsung's KS0074. The pins may be connected in
15 * data output pins or to the ground. The combinations have to be hard-coded
22 * - the initialization/deinitialization process is very dirty and should
26 * - document 24 keys keyboard (3 rows of 8 cols, 32 diodes + 2 inputs)
27 * - make the LCD a part of a virtual screen of Vx*Vy
[all …]
/linux/Documentation/devicetree/bindings/iio/adc/
H A Dadi,ad4170-4.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/iio/adc/adi,ad4170-4.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Analog Devices AD4170-4 and similar Analog to Digital Converters
10 - Marcelo Schmitt <marcelo.schmitt@analog.com>
13 Analog Devices AD4170-4 series of Sigma-delta Analog to Digital Converters.
15 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4170-4.pdf
16 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4190-4.pdf
17 https://www.analog.com/media/en/technical-documentation/data-sheets/ad4195-4.pdf
[all …]
/linux/drivers/input/misc/
H A Daxp20x-pek.c96 ret = regmap_read(axp20x_pek->axp20x->regmap, AXP20X_PEK_KEY, &val); in axp20x_show_attr()
101 val >>= ffs(mask) - 1; in axp20x_show_attr()
116 return axp20x_show_attr(dev, axp20x_pek->info->startup_time, in axp20x_show_attr_startup()
117 axp20x_pek->info->startup_mask, buf); in axp20x_show_attr_startup()
126 return axp20x_show_attr(dev, axp20x_pek->info->shutdown_time, in axp20x_show_attr_shutdown()
127 axp20x_pek->info->shutdown_mask, buf); in axp20x_show_attr_shutdown()
144 for (i = 3; i >= 0; i--) { in axp20x_store_attr()
147 err = abs(time[i].time - val); in axp20x_store_attr()
157 idx <<= ffs(mask) - 1; in axp20x_store_attr()
158 ret = regmap_update_bits(axp20x_pek->axp20x->regmap, AXP20X_PEK_KEY, in axp20x_store_attr()
[all …]
/linux/drivers/input/keyboard/
H A Dlkkbd.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright (C) 2004 by Jan-Benedict Glaw <jbglaw@lug-owl.de>
19 * 1 - RxD <----> Pin 3 (TxD) <-> Pin 2 (TxD)
20 * 2 - GND <----> Pin 5 (GND) <-> Pin 7 (GND)
21 * 4 - TxD <----> Pin 2 (RxD) <-> Pin 3 (RxD)
22 * 3 - +12V (from HDD drive connector), DON'T connect to DE9 or DB25!!!
33 * || So the adaptor consists of three connected cables
34 * || for data transmission (RxD and TxD) and signal ground.
37 * It's the yellow cable there (black is ground and red is +5V).
40 * "VCB02 Video Subsystem - Technical Manual", EK-104AA-TM-001. This
[all …]
/linux/drivers/iio/adc/
H A Dad7944.c1 // SPDX-License-Identifier: GPL-2.0-only
26 #include <linux/iio/buffer-dmaengine.h>
40 /* datasheet calls this "4-wire mode" */
42 /* datasheet calls this "3-wire mode" (not related to SPI_3WIRE!) */
48 /* maps adi,spi-mode property value to enum */
67 /* Chip-specific timing specifications. */
69 /* GPIO connected to CNV pin. */
73 /* Indicates TURBO is hard-wired to be always enabled. */
118 * AD7944_DEFINE_CHIP_INFO - Define a chip info structure for a specific chip
170 * - There is no soft timestamp since everything is done in hardware.
[all …]
/linux/drivers/phy/ti/
H A Dphy-twl4030-usb.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * twl4030_usb - TWL4030 USB transceiver, talking to OMAP OTG controller
5 * Copyright (C) 2004-2007 Texas Instruments
10 * - HS USB ULPI mode works.
11 * - 3-pin mode support may be added in future.
137 * If VBUS is valid or ID is ground, then we know a
138 * cable is present and we need to be runtime-enabled
163 atomic_t connected; member
175 /*-------------------------------------------------------------------------*/
186 dev_dbg(twl->dev, "Write%d[%d,0x%x] wrote %02x but read %02x\n", in twl4030_i2c_write_u8_verify()
[all …]

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