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/kernel/linux/linux-4.19/drivers/w1/slaves/
DKconfig2 # 1-wire slaves configuration
5 menu "1-wire Slaves"
10 Say Y here if you want to connect 1-wire thermal sensors to your
11 wire.
16 Say Y here if you want to connect 1-wire
17 simple 64bit memory rom(ds2401/ds2411/ds1990*) to your wire.
22 Say Y or M here if you want to use a DS2405 1-wire
23 single-channel addressable switch.
24 This device can also work as a single-channel
28 tristate "8-Channel Addressable Switch (IO Expander) 0x29 family support (DS2408)"
[all …]
/kernel/linux/linux-4.19/Documentation/w1/
Dw1.generic1 The 1-wire (w1) subsystem
2 ------------------------------------------------------------------
3 The 1-wire bus is a simple master-slave bus that communicates via a single
4 signal wire (plus ground, so two wires).
16 W1-over-GPIO
22 ------------------------------------------------------------------
25 - sysfs entries for that w1 master are created
26 - the w1 bus is periodically searched for new slave devices
32 in nature, which can contain several (two or one) low-level operations.
35 and two byte address. At this step bus is reset and appropriate device
[all …]
/kernel/linux/linux-5.10/drivers/w1/slaves/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
3 # 1-wire slaves configuration
6 menu "1-wire Slaves"
11 Say Y here if you want to connect 1-wire thermal sensors to your
12 wire.
17 Say Y here if you want to connect 1-wire
18 simple 64bit memory rom(ds2401/ds2411/ds1990*) to your wire.
23 Say Y or M here if you want to use a DS2405 1-wire
24 single-channel addressable switch.
25 This device can also work as a single-channel
[all …]
/kernel/linux/linux-5.10/Documentation/w1/
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).
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 ------------------------------
29 - sysfs entries for that w1 master are created
30 - the w1 bus is periodically searched for new slave devices
[all …]
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/sound/
Dmt6359.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Eason Yen <eason.yen@mediatek.com>
11 - Jiaxin Yu <jiaxin.yu@mediatek.com>
12 - Shane Chien <shane.chien@mediatek.com>
20 mediatek,dmic-mode:
23 Indicates how many data pins are used to transmit two channels of PDM
24 signal. 0 means two wires, 1 means one wire. Default value is 0.
26 - 0 # one wire
[all …]
Dmt6358.txt10 - compatible : "mediatek,mt6358-sound".
11 - Avdd-supply : power source of AVDD
14 - mediatek,dmic-mode : Indicates how many data pins are used to transmit two
15 channels of PDM signal. 0 means two wires, 1 means one wire. Default
21 compatible = "mediatek,mt6358-sound";
22 Avdd-supply = <&mt6358_vaud28_reg>;
23 mediatek,dmic-mode = <0>;
/kernel/linux/linux-4.19/Documentation/devicetree/bindings/
Dtrivial-devices.txt12 abracon,abb5zes3 AB-RTCMC-32.768kHz-B5ZE-S3: Real Time Clock/Calendar Module with I2C Interface
13 ad,ad7414 SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature …
14 ad,adm9240 ADM9240: Complete System Hardware Monitor for uProcessor-Based Systems
15 adi,adt7461 +/-1C TDM Extended Temp Range I.C
16 adt7461 +/-1C TDM Extended Temp Range I.C
17 adi,adt7473 +/-1C TDM Extended Temp Range I.C
18 adi,adt7475 +/-1C TDM Extended Temp Range I.C
19 adi,adt7476 +/-1C TDM Extended Temp Range I.C
20 adi,adt7490 +/-1C TDM Extended Temp Range I.C
21 adi,adxl345 Three-Axis Digital Accelerometer
[all …]
/kernel/linux/linux-4.19/Documentation/hwmon/
Dasc762115 Andigilog has both the PECI and pre-PECI versions of the Heceta-6, as
16 Intel calls them. Heceta-6e has high frequency PWM and Heceta-6p has
18 Heceta-6e part and aSC7621 is the Heceta-6p part. They are both in
23 have used registers below 20h for vendor-specific functions in addition
24 to those in the Intel-specified vendor range.
26 Our conversion process produces a result that is reported as two bytes.
27 The fan speed control uses this finer value to produce a "step-less" fan
28 PWM output. These two bytes are "read-locked" to guarantee that once a
29 high or low byte is read, the other byte is locked-in until after the
32 sheet says 10-bits of resolution, although you may find the lower bits
[all …]
Dlm8542 Margit Schubert-While <margitsw@t-online.de>,
46 -----------
52 The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
54 temperatures and five (5) voltages. It has four (4) 16-bit counters for
64 The temperatures measured are one internal diode, and two remote diodes.
87 ----------------
89 The LM85 has four fan speed monitoring modes. The ADM1027 has only two.
92 speed of a two wire fan, but the input conditioning circuitry is different
93 for 3-wire and 2-wire mode. For this reason, the 2-wire fan modes are not
102 The ADM1027, ADT7463 and ADT7468 have a 10-bit ADC and can therefore
[all …]
/kernel/linux/linux-5.10/drivers/w1/masters/
Dds2482.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * ds2482.c - provides i2c to w1-master bridge(s)
7 * It is a I2C to 1-wire bridge.
8 * There are two variations: -100 and -800, which have 1 or 8 1-wire ports.
10 * http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4382
26 * The APU bit controls whether an active pullup (controlled slew-rate
28 * a 1-Wire line from low to high. When APU = 0, active pullup is disabled
30 * only a single slave on the 1-Wire line.
35 "0-disable, 1-enable (default)");
37 /* extra configurations - e.g. 1WS */
[all …]
/kernel/linux/linux-4.19/drivers/w1/masters/
Dds2482.c2 * ds2482.c - provides i2c to w1-master bridge(s)
6 * It is a I2C to 1-wire bridge.
7 * There are two variations: -100 and -800, which have 1 or 8 1-wire ports.
9 * http://www.maxim-ic.com/quick_view2.cfm/qv_pk/4382
29 * The APU bit controls whether an active pullup (controlled slew-rate
31 * a 1-Wire line from low to high. When APU = 0, active pullup is disabled
33 * only a single slave on the 1-Wire line.
38 "0-disable, 1-enable (default)");
41 * The DS2482 registers - there are 3 registers that are addressed by a read
48 #define DS2482_CMD_CHANNEL_SELECT 0xC3 /* Param: Channel byte - DS2482-800 only */
[all …]
/kernel/linux/linux-5.10/Documentation/hwmon/
Dlm85.rst79 - Philip Pokorny <ppokorny@penguincomputing.com>,
80 - Frodo Looijaard <frodol@dds.nl>,
81 - Richard Barrington <rich_b_nz@clear.net.nz>,
82 - Margit Schubert-While <margitsw@t-online.de>,
83 - Justin Thiessen <jthiessen@penguincomputing.com>
86 -----------
92 The LM85 uses the 2-wire interface compatible with the SMBUS 2.0
94 temperatures and five (5) voltages. It has four (4) 16-bit counters for
104 The temperatures measured are one internal diode, and two remote diodes.
127 ----------------
[all …]
Dasc7621.rst20 Andigilog has both the PECI and pre-PECI versions of the Heceta-6, as
21 Intel calls them. Heceta-6e has high frequency PWM and Heceta-6p has
23 Heceta-6e part and aSC7621 is the Heceta-6p part. They are both in
28 have used registers below 20h for vendor-specific functions in addition
29 to those in the Intel-specified vendor range.
31 Our conversion process produces a result that is reported as two bytes.
32 The fan speed control uses this finer value to produce a "step-less" fan
33 PWM output. These two bytes are "read-locked" to guarantee that once a
34 high or low byte is read, the other byte is locked-in until after the
37 sheet says 10-bits of resolution, although you may find the lower bits
[all …]
/kernel/linux/linux-5.10/Documentation/i2c/
Dsummary.rst6 a protocol developed by Philips. It is a slow two-wire protocol (variable
12 e.g. TWI (Two Wire Interface), IIC.
14 The official I2C specification is the `"I2C-bus specification and user
15 manual" (UM10204) <https://www.nxp.com/docs/en/user-guide/UM10204.pdf>`_
37 .. kernel-figure:: i2c_bus.svg
55 video-related chips.
/kernel/linux/linux-5.10/Documentation/devicetree/bindings/
Dtrivial-devices.yaml1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/trivial-devices.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Rob Herring <robh@kernel.org>
28 - enum:
29 … # SMBus/I2C Digital Temperature Sensor in 6-Pin SOT with SMBus Alert and Over Temperature Pin
30 - ad,ad7414
31 # ADM9240: Complete System Hardware Monitor for uProcessor-Based Systems
32 - ad,adm9240
[all …]
/kernel/linux/linux-5.10/drivers/block/drbd/
Ddrbd_protocol.h1 /* SPDX-License-Identifier: GPL-2.0 */
33 P_SUPERSEDED = 0x18, /* Used in proto C, two-primaries conflict detection */
64 /* Only use these two if both support FF_THIN_RESYNC */
74 P_ZEROES = 0x36, /* data sock: zero-out, WRITE_ZEROES */
93 /* This is the layout for a packet on the wire.
154 u32 size; /* == bio->bi_size */
159 u32 size; /* == bio->bi_size */
166 * P_SUPERSEDED (proto C, two-primaries conflict detection)
193 /* supports TRIM/DISCARD on the "wire" protocol */
196 /* Detect all-zeros during resync, and rather TRIM/UNMAP/DISCARD those blocks
[all …]
/kernel/linux/linux-5.10/Documentation/driver-api/gpio/
Dintro.rst13 Due to the history of GPIO interfaces in the kernel, there are two different
16 - The descriptor-based interface is the preferred way to manipulate GPIOs,
17 and is described by all the files in this directory excepted gpio-legacy.txt.
18 - The legacy integer-based interface which is considered deprecated (but still
19 usable for compatibility reasons) is documented in gpio-legacy.txt.
21 The remainder of this document applies to the new descriptor-based interface.
22 gpio-legacy.txt contains the same information applied to the legacy
23 integer-based interface.
29 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
37 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
[all …]
/kernel/linux/linux-4.19/Documentation/driver-api/gpio/
Dintro.rst13 Due to the history of GPIO interfaces in the kernel, there are two different
16 - The descriptor-based interface is the preferred way to manipulate GPIOs,
17 and is described by all the files in this directory excepted gpio-legacy.txt.
18 - The legacy integer-based interface which is considered deprecated (but still
19 usable for compatibility reasons) is documented in gpio-legacy.txt.
21 The remainder of this document applies to the new descriptor-based interface.
22 gpio-legacy.txt contains the same information applied to the legacy
23 integer-based interface.
29 A "General Purpose Input/Output" (GPIO) is a flexible software-controlled
37 System-on-Chip (SOC) processors heavily rely on GPIOs. In some cases, every
[all …]
/kernel/linux/linux-4.19/drivers/block/drbd/
Ddrbd_protocol.h1 /* SPDX-License-Identifier: GPL-2.0 */
33 P_SUPERSEDED = 0x18, /* Used in proto C, two-primaries conflict detection */
64 /* Only use these two if both support FF_THIN_RESYNC */
88 /* This is the layout for a packet on the wire.
143 u32 size; /* == bio->bi_size */
148 u32 size; /* == bio->bi_size */
155 * P_SUPERSEDED (proto C, two-primaries conflict detection)
182 /* supports TRIM/DISCARD on the "wire" protocol */
185 /* Detect all-zeros during resync, and rather TRIM/UNMAP/DISCARD those blocks
189 /* supports REQ_WRITE_SAME on the "wire" protocol.
[all …]
/kernel/linux/linux-5.10/include/linux/
Dw1.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
12 * struct w1_reg_num - broken out slave device id
49 * struct w1_slave - holds a single slave device on the bus
51 * @owner: Points to the one wire "wire" kernel module.
84 * struct w1_bus_master - operations available on a bus master
92 * @touch_bit: the lowest-level function for devices that really support the
93 * 1-wire protocol.
94 * touch_bit(0) = write-0 cycle
95 * touch_bit(1) = write-1 / read cycle
108 * @triplet: Combines two reads and a smart write for ROM searches
[all …]
/kernel/linux/linux-4.19/include/linux/
Dw1.h21 * struct w1_reg_num - broken out slave device id
58 * struct w1_slave - holds a single slave device on the bus
60 * @owner: Points to the one wire "wire" kernel module.
93 * struct w1_bus_master - operations available on a bus master
101 * @touch_bit: the lowest-level function for devices that really support the
102 * 1-wire protocol.
103 * touch_bit(0) = write-0 cycle
104 * touch_bit(1) = write-1 / read cycle
117 * @triplet: Combines two reads and a smart write for ROM searches
120 * @reset_bus: long write-0 with a read for the presence pulse detection
[all …]
/kernel/linux/linux-5.10/Documentation/driver-api/
Di2c.rst5 the "Inter-IC" bus, a simple bus protocol which is widely used where low
7 some vendors use another name (such as "Two-Wire Interface", TWI) for
8 the same bus. I2C only needs two signals (SCL for clock, SDA for data),
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
18 structured around two kinds of driver, and two kinds of device. An I2C
38 .. kernel-doc:: include/linux/i2c.h
41 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
44 .. kernel-doc:: drivers/i2c/i2c-core-base.c
47 .. kernel-doc:: drivers/i2c/i2c-core-smbus.c
/kernel/linux/linux-4.19/Documentation/driver-api/
Di2c.rst5 the "Inter-IC" bus, a simple bus protocol which is widely used where low
7 some vendors use another name (such as "Two-Wire Interface", TWI) for
8 the same bus. I2C only needs two signals (SCL for clock, SDA for data),
12 I2C is a multi-master bus; open drain signaling is used to arbitrate
18 structured around two kinds of driver, and two kinds of device. An I2C
38 .. kernel-doc:: include/linux/i2c.h
41 .. kernel-doc:: drivers/i2c/i2c-boardinfo.c
44 .. kernel-doc:: drivers/i2c/i2c-core-base.c
47 .. kernel-doc:: drivers/i2c/i2c-core-smbus.c
/kernel/linux/linux-4.19/drivers/spmi/
DKconfig7 SPMI (System Power Management Interface) is a two-wire
21 built-in SPMI PMIC Arbiter interface on Qualcomm MSM family
/kernel/linux/linux-5.10/drivers/spmi/
DKconfig1 # SPDX-License-Identifier: GPL-2.0-only
8 SPMI (System Power Management Interface) is a two-wire
22 built-in SPMI PMIC Arbiter interface on Qualcomm MSM family

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