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/linux/Documentation/hwmon/
H A Dmax6639.rst12 Datasheet: https://datasheets.maximintegrated.com/en/ds/MAX6639-MAX6639F.pdf
15 - He Changqing <hechangqing@semptian.com>
16 - Roland Stigge <stigge@antcom.de>
19 -----------
21 This driver implements support for the Maxim MAX6639. This chip is a 2-channel
23 temperature and one external diode-connected transistor or two external
24 diode-connected transistors.
33 temp1_fault R Temperature channel 1 diode fault
34 temp2_fault R Temperature channel 2 diode fault
H A Dmax6697.rst68 Guenter Roeck <linux@roeck-us.net>
71 -----------
75 remote temperature sensors. Remote temperature sensors are diode-connected
76 thermal transistors, except for MAX6698 which supports three diode-connected
82 per-channel attributes are chip type and channel dependent.
90 tempX_fault RO temperature diode fault (remote sensors only)
H A Dmax31730.rst14 Author: Guenter Roeck <linux@roeck-us.net>
18 -----------
23 temperatures of three external diode-connected transistors. The operating
25 for high series resistance in circuit-board traces and the external thermal
26 diode, while beta compensation corrects for temperature-measurement
27 errors due to low-beta sensing transistors.
31 -------------
34 temp[1-4]_enable RW Temperature enable/disable
36 temp[1-4]_input RO Temperature input
37 temp[2-4]_fault RO Fault indicator for remote channels
[all …]
H A Dthmc50.rst10 Addresses scanned: I2C 0x2c - 0x2e
18 Addresses scanned: I2C 0x2c - 0x2e
31 - Frodo Looijaard <frodol@dds.nl>
32 - Philip Edelbrock <phil@netroedge.com>
35 -----------------
42 -----------
45 external diode-type temperature sensor (compatible w/ the diode sensor inside
48 register and Hysteresis register. Each value can be set and read to half-degree
49 accuracy. An alarm is issued (usually to a connected LM78) when the
52 degrees Celsius, and are guaranteed within a range of -55 to +125 degrees.
[all …]
H A Dmax31760.rst1 .. SPDX-License-Identifier: GPL-2.0-or-later
19 -----------
23 temperature of a discrete diode-connected transistor, such as a 2N3906,
24 or a thermal diode commonly found on CPUs, graphics processor units (GPUs),
27 I2C-compatible interface. Fan speed is controlled based on the temperature
28 reading as an index to a 48-byte lookup table (LUT) containing
29 user-programmed PWM values. The flexible LUT-based architecture enables
35 remote high-temperature threshold has been exceeded.
37 Temperature measurement range: from -55°C to 125°C
41 Please refer how to instantiate this driver: Documentation/i2c/instantiating-devices.rst
[all …]
H A Demc2103.rst18 -----------
33 The 2103-2 and 2103-4 variants have a third temperature sensor, which can
34 be connected to two anti-parallel diodes. These values can be read
35 as temp3 and temp4. If only one diode is attached to this channel, temp4
37 this 4th channel when anti-parallel diodes are not fitted.
H A Dvt1211.rst10 Addresses scanned: none, address read from Super-I/O config space
24 -----------------
29 configuration for channels 1-5.
30 Legal values are in the range of 0-31. Bit 0 maps to
47 -----------
49 The VIA VT1211 Super-I/O chip includes complete hardware monitoring
52 implements 5 universal input channels (UCH1-5) that can be individually
60 connected to the PWM outputs of the VT1211 :-().
68 Reading 1 temp1 Intel thermal diode
69 Reading 3 temp2 Internal thermal diode
[all …]
H A Dlm95234.rst22 Author: Guenter Roeck <linux@roeck-us.net>
25 -----------
27 LM95233 and LM95234 are 11-bit digital temperature sensors with a 2-wire
32 graphics processors or diode-connected 2N3904s. The chip's TruTherm
37 is provided within a range of -127 to +255 degrees (+127.875 degrees for
H A Dbt1-pvt.rst1 .. SPDX-License-Identifier: GPL-2.0-only
3 Kernel driver bt1-pvt
8 * Baikal-T1 PVT sensor (in SoC)
10 Prefix: 'bt1-pvt'
12 Addresses scanned: -
21 -----------
24 embedded into Baikal-T1 process, voltage and temperature sensors. PVT IP-core
29 compile-time configurable due to the hardware interface implementation
30 peculiarity, which is connected with an ability to convert data from only one
40 in alarm-less configuration the data conversion is performed by the driver
[all …]
H A 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.
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
47 We offer GPIO features on the former VID pins. These are open-drain
[all …]
H A Dw83781d.rst10 Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports)
12 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83781d.pdf
18 Addresses scanned: I2C 0x28 - 0x2f, ISA 0x290 (8 I/O ports)
28 Datasheet: http://www.winbond-usa.com/products/winbond_products/pdfs/PCIC/w83783s.pdf
34 Addresses scanned: I2C 0x28 - 0x2f
42 - Frodo Looijaard <frodol@dds.nl>,
43 - Philip Edelbrock <phil@netroedge.com>,
44 - Mark Studebaker <mdsxyz123@yahoo.com>
47 -----------------
67 -----------
[all …]
H A Dit87.rst174 - Christophe Gauthron
175 - Jean Delvare <jdelvare@suse.de>
179 -----------------
192 misconfigured by BIOS - PWM values would be inverted. This option tries
209 Provided since there are reports that system-wide acpi_enfore_resources=lax
217 -------------------
219 All the chips supported by this driver are LPC Super-I/O chips, accessed
220 through the LPC bus (ISA-like I/O ports). The IT8712F additionally has an
228 -----------
247 is stored in the Super-I/O configuration space. Due to technical limitations,
[all …]
H A Ddme1737.rst18 Addresses scanned: none, address read from Super-I/O config space
34 Addresses scanned: none, address read from Super-I/O config space
43 -----------------
52 Include non-standard LPC addresses 0x162e and 0x164e
55 - VIA EPIA SN18000
59 -----------
63 and SCH5127 Super-I/O chips. These chips feature monitoring of 3 temp sensors
64 temp[1-3] (2 remote diodes and 1 internal), 8 voltages in[0-7] (7 external and
65 1 internal) and up to 6 fan speeds fan[1-6]. Additionally, the chips implement
66 up to 5 PWM outputs pwm[1-3,5-6] for controlling fan speeds both manually and
[all …]
H A Dw83793.rst10 Addresses scanned: I2C 0x2c - 0x2f
15 - Yuan Mu (Winbond Electronics)
16 - Rudolf Marek <r.marek@assembler.cz>
20 -----------------
36 -----------
44 sets of 6-pin CPU VID input.
48 voltage0-2 is 2mV, resolution of voltage3/4/5 is 16mV, 8mV for voltage6,
49 24mV for voltage7/8. Temp1-4 have a 0.25 degree Celsius resolution,
50 temp5-6 have a 1 degree Celsiis resolution.
53 Temp1-4 have 2 possible types. It can be read from (and written to)
[all …]
H A 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.
106 measure a thermal diode like the one in a Pentium 4 processor in a socket
[all …]
H A Dlm93.rst10 Addresses scanned: I2C 0x2c-0x2e
18 Addresses scanned: I2C 0x2c-0x2e
24 - Mark M. Hoffman <mhoffman@lightlink.com>
25 - Ported to 2.6 by Eric J. Bowersox <ericb@aspsys.com>
26 - Adapted to 2.6.20 by Carsten Emde <ce@osadl.org>
27 - Modified for mainline integration by Hans J. Koch <hjk@hansjkoch.de>
30 -----------------
33 Set to non-zero to force some initializations (default is 0).
38 Configures in7 and in8 limit type, where 0 means absolute and non-zero
54 --------------------
[all …]
/linux/Documentation/devicetree/bindings/hwmon/
H A Dmaxim,max6639.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Naresh Solanki <naresh.solanki@9elements.com>
14 The MAX6639 is a 2-channel temperature monitor with dual, automatic, PWM
15 fan-speed controller. It monitors its own temperature and one external
16 diode-connected transistor or the temperatures of two external diode-connected
20 https://datasheets.maximintegrated.com/en/ds/MAX6639-MAX6639F.pdf
25 - maxim,max6639
30 '#address-cells':
[all …]
/linux/Documentation/spi/
H A Dspi-lm70llp.rst2 spi_lm70llp : LM70-LLP parport-to-SPI adapter
15 -----------
27 --------------------
28 The schematic for this particular board (the LM70EVAL-LLP) is
39 D0 2 - -
40 D1 3 --> V+ 5
41 D2 4 --> V+ 5
42 D3 5 --> V+ 5
43 D4 6 --> V+ 5
44 D5 7 --> nCS 8
[all …]
/linux/include/linux/platform_data/
H A Dadp8860.h1 /* SPDX-License-Identifier: GPL-2.0-or-later */
6 * Copyright 2009-2010 Analog Devices Inc.
103 u8 bl_fade_in; /* Backlight Fade-In Timer */
104 u8 bl_fade_out; /* Backlight Fade-Out Timer */
105 u8 bl_fade_law; /* fade-on/fade-off transfer characteristic */
130 u8 led_fade_in; /* LED Fade-In Timer */
131 u8 led_fade_out; /* LED Fade-Out Timer */
132 u8 led_fade_law; /* fade-on/fade-off transfer characteristic */
145 * loads that are not connected through the ADP8863 diode drivers.
/linux/Documentation/devicetree/bindings/leds/backlight/
H A Dqcom-wled.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/leds/backlight/qcom-wled.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Bjorn Andersson <andersson@kernel.org>
11 - Kiran Gunda <quic_kgunda@quicinc.com>
14 WLED (White Light Emitting Diode) driver is used for controlling display
16 platforms. The PMIC is connected to the host processor via SPMI bus.
21 - qcom,pm8941-wled
22 - qcom,pmi8950-wled
[all …]
/linux/arch/powerpc/boot/dts/
H A Dturris1x.dts1 // SPDX-License-Identifier: GPL-2.0+
5 * Copyright 2013 - 2022 CZ.NIC z.s.p.o. (http://www.nic.cz/)
8 * and available at: https://docs.turris.cz/hw/turris-1x/turris-1x/
11 #include <dt-bindings/gpio/gpio.h>
12 #include <dt-bindings/interrupt-controller/irq.h>
13 #include <dt-bindings/leds/common.h>
14 /include/ "fsl/p2020si-pre.dtsi"
41 gpio-controller@18 {
45 #gpio-cells = <2>;
46 gpio-controller;
[all …]
/linux/drivers/hwmon/
H A Demc2103.c1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * emc2103.c - Support for SMSC EMC2103
13 #include <linux/hwmon-sysfs.h>
39 * 2103-2 and 2103-4's 3rd temperature sensor can be connected to two diodes
40 * in anti-parallel mode, and in this configuration both can be read
42 * detect if it's connected in this mode, so we have to manually enable
43 * it. Default is to leave the device in the state it's already in (-1).
46 static int apd = -1;
48 MODULE_PARM_DESC(apd, "Set to zero to disable anti-parallel diode mode");
52 u8 fraction; /* 0-7 multiples of 0.125 */
[all …]
/linux/drivers/rtc/
H A Drtc-ds1307.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * rtc-ds1307.c - RTC driver for some mostly-compatible I2C chips.
23 #include <linux/hwmon-sysfs.h>
24 #include <linux/clk-provider.h>
29 * We can't determine type by probing, but if we expect pre-Linux code
31 * setting the date and time), Linux can ignore the non-clock features.
56 #define DS1307_REG_SECS 0x00 /* 00-59 */
60 #define DS1307_REG_MIN 0x01 /* 00-59 */
62 #define DS1307_REG_HOUR 0x02 /* 00-23, or 1-12{am,pm} */
67 #define DS1307_REG_WDAY 0x03 /* 01-07 */
[all …]
/linux/Documentation/ABI/testing/
H A Dsysfs-class-hwmon16 The contents of the label are free-form.
135 this voltage channel is being used for, and user-space
137 user-space.
145 When disabled the sensor read will return -ENODATA.
147 - 1: Enable
148 - 0: Disable
156 - 1: Failed
157 - 0: Ok
245 This value is a characteristic of the fan connected to the
262 Only makes sense if the chip supports closed-loop fan speed
[all …]
/linux/arch/mips/boot/dts/ingenic/
H A Dgcw0.dts1 // SPDX-License-Identifier: GPL-2.0
2 /dts-v1/;
5 #include <dt-bindings/clock/ingenic,tcu.h>
7 #include <dt-bindings/gpio/gpio.h>
8 #include <dt-bindings/iio/adc/ingenic,adc.h>
9 #include <dt-bindings/input/input.h>
29 stdout-path = "serial2:57600n8";
33 compatible = "regulator-fixed";
34 regulator-name = "vcc";
36 regulator-min-microvolt = <3300000>;
[all …]

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