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/linux/Documentation/hwmon/
H A Dshtc1.rst41 -----------
48 address 0x70. See Documentation/i2c/instantiating-devices.rst for methods to
54 non-blocking mode. Blocking mode will guarantee the fastest result but
55 the I2C bus will be busy during that time. By default, non-blocking mode
56 is used. Make sure clock-stretching works properly on your device if you
58 2. high or low accuracy. High accuracy is used by default and using it is
61 sysfs-Interface
62 ---------------
65 - temperature input
67 - humidity input
H A Dpc87360.rst22 -----------------
27 - 0: None
28 - **1**: Forcibly enable internal voltage and temperature channels,
30 - 2: Forcibly enable all voltage and temperature channels, except in9
31 - 3: Forcibly enable all voltage and temperature channels, including in9
42 -----------
56 PC87360 - 2 2 - 0xE1
57 PC87363 - 2 2 - 0xE8
58 PC87364 - 3 3 - 0xE4
60 PC87366 11 3 3 3-4 0xE9
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H A Dadt7410.rst14 https://www.analog.com/static/imported-files/data_sheets/ADT7410.pdf
23 https://www.analog.com/static/imported-files/data_sheets/ADT7420.pdf
33 https://www.analog.com/static/imported-files/data_sheets/ADT7310.pdf
43 https://www.analog.com/static/imported-files/data_sheets/ADT7320.pdf
48 -----------
51 -55°C to +150°C. It has a high accuracy of +/-0.5°C and can be operated at a
56 common hysteresis of 0°C - 15°C and a fault queue, ranging from 1 to 4 events.
57 Both pins can individually set to be active-low or active-high, while the whole
64 package, a slightly narrower operating temperature range (-40°C to +150°C), and
65 a better accuracy (0.25°C instead of 0.50°C.)
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H A Dds1621.rst47 - Christian W. Zuckschwerdt <zany@triq.net>
48 - valuable contributions by Jan M. Sendler <sendler@sendler.de>
49 - ported to 2.6 by Aurelien Jarno <aurelien@aurel32.net>
53 ------------------
58 * 0 = active high,
62 -----------
65 both high and low temperature limits which can be user defined (i.e.
66 programmed into non-volatile on-chip registers). Temperature range is -55
68 Fahrenheit range of -67 to +257 degrees with 0.9 steps. If polarity
74 stays high until the high limit is met or exceeded. On the other hand
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H A Dds620.rst20 -----------
23 high and low temperature limits which can be user defined (i.e. programmed
24 into non-volatile on-chip registers). Temperature range is -55 degree Celsius
25 to +125. Between 0 and 70 degree Celsius, accuracy is 0.5 Kelvin. The value
38 The PO output pin of the DS620 operates active-low.
H A Dlm87.rst10 Addresses scanned: I2C 0x2c - 0x2e
18 Addresses scanned: I2C 0x2c - 0x2e
24 - Frodo Looijaard <frodol@dds.nl>,
25 - Philip Edelbrock <phil@netroedge.com>,
26 - Mark Studebaker <mdsxyz123@yahoo.com>,
27 - Stephen Rousset <stephen.rousset@rocketlogix.com>,
28 - Dan Eaton <dan.eaton@rocketlogix.com>,
29 - Jean Delvare <jdelvare@suse.de>,
30 - Original 2.6 port Jeff Oliver
33 -----------
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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
40 in alarm-less configuration the data conversion is performed by the driver
41 on demand when read operation is requested via corresponding _input-file.
[all …]
H A Dw83792d.rst10 Addresses scanned: I2C 0x2c - 0x2f
19 -----------------
35 -----------
42 parameter; this will put it into a more well-behaved state first.
48 The driver also implements up to seven fan control outputs: pwm1-7. Pwm1-7
53 Automatic fan control mode is possible only for fan1-fan3.
66 128) to give the readings more range or accuracy.
116 ----------------
118 - This driver is only for Winbond W83792D C version device, there
120 calculation method to in6-in7(measured value, limits) is a little
[all …]
H A Dlm83.rst10 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
18 Addresses scanned: I2C 0x18 - 0x1a, 0x29 - 0x2b, 0x4c - 0x4e
27 -----------
52 Gigabyte GA-8IK1100
54 Soltek SL-75DRV5
66 sensors. This means that temperature-only chips are usually used as
74 sense is on SMP systems, such as the above-mentioned Iwill MPX2,
88 accuracy is guaranteed to 3.0 degrees (see the datasheet for more
91 Each sensor has its own high limit, but the critical limit is common to
/linux/Documentation/timers/
H A Dtimekeeping.rst10 If you grep through the kernel source you will find a number of architecture-
12 architecture-specific overrides of the sched_clock() function and some
17 on this timeline, providing facilities such as high-resolution timers.
23 -------------
31 n bits which count from 0 to (2^n)-1 and then wraps around to 0 and start over.
35 The clock source shall have as high resolution as possible, and the frequency
36 shall be as stable and correct as possible as compared to a real-world wall
46 When the wall-clock accuracy of the clock source isn't satisfactory, there
48 the user-visible time to RTC clocks in the system or against networked time
76 Since a 32-bit counter at say 100 MHz will wrap around to zero after some 43
[all …]
/linux/tools/testing/selftests/kvm/x86_64/
H A Dhyperv_clock.c1 // SPDX-License-Identifier: GPL-2.0-only
5 * Tests for Hyper-V clocksources
25 u32 low, high; in mul_u64_u64_shr64() member
33 rm.ll = (u64)a0.l.low * b0.l.high; in mul_u64_u64_shr64()
34 rn.ll = (u64)a0.l.high * b0.l.low; in mul_u64_u64_shr64()
35 rh.ll = (u64)a0.l.high * b0.l.high; in mul_u64_u64_shr64()
37 rh.l.low = c = rm.l.high + rn.l.high + rh.l.low; in mul_u64_u64_shr64()
38 rh.l.high = (c >> 32) + rh.l.high; in mul_u64_u64_shr64()
59 /* For increased accuracy, take mean rdtsc() before and afrer rdmsr() */ in check_tsc_msr_rdtsc()
71 delta_ns = ((t2 - t1) * 100) - ((r2 - r1) * 1000000000 / tsc_freq); in check_tsc_msr_rdtsc()
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/linux/Documentation/devicetree/bindings/regulator/
H A Drichtek,rtq2208.yaml1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Alina Yu <alina_yu@richtek.com>
14 multi-configurable synchronous buck converters and two LDOs.
16 Bucks support "regulator-allowed-modes" and "regulator-mode". The former defines the permitted
25 0 - Auto mode for power saving, which reducing the switching frequency at light load condition
26 to maintain high frequency.
27 …1 - FCCM to meet the strict voltage regulation accuracy, which keeping constant switching frequenc…
35 - richtek,rtq2208
[all …]
/linux/Documentation/devicetree/bindings/mtd/
H A Dlpc32xx-mlc.txt4 - compatible: "nxp,lpc3220-mlc"
5 - reg: Address and size of the controller
6 - interrupts: The NAND interrupt specification
7 - gpios: GPIO specification for NAND write protect
12 accuracy:)
13 - nxp,tcea_delay: TCEA_DELAY
14 - nxp,busy_delay: BUSY_DELAY
15 - nxp,nand_ta: NAND_TA
16 - nxp,rd_high: RD_HIGH
17 - nxp,rd_low: RD_LOW
[all …]
/linux/arch/x86/include/asm/
H A Dmach_timer.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 /* ------ Calibrate the TSC -------
8 * Too much 64-bit arithmetic here to do this cleanly in C, and for
9 * accuracy's sake we want to keep the overhead on the CTC speaker (channel 2)
11 * directly because of the awkward 8-bit access mechanism of the 82C54
23 /* Set the Gate high, disable speaker */ in mach_prepare_counter()
29 * Set the Gate high, program CTC channel 2 for mode 0, in mach_prepare_counter()
/linux/Documentation/sound/designs/
H A Dtimestamping.rst7 - Trigger_tstamp is the system time snapshot taken when the .trigger
11 estimate with a delay. In the latter two cases, the low-level driver
17 - tstamp is the current system timestamp updated during the last
19 The difference (tstamp - trigger_tstamp) defines the elapsed time.
29 - ``avail`` reports how much can be written in the ring buffer
30 - ``delay`` reports the time it will take to hear a new sample after all
43 ascii-art, this could be represented as follows (for the playback
47 --------------------------------------------------------------> time
53 |< codec delay >|<--hw delay-->|<queued samples>|<---avail->|
54 |<----------------- delay---------------------->| |
[all …]
/linux/drivers/iio/humidity/
H A Dsi7020.c1 // SPDX-License-Identifier: GPL-2.0-only
3 * si7020.c - Silicon Labs Si7013/20/21 Relative Humidity and Temp Sensors
63 if (chan->type == IIO_CURRENT) { in si7020_read_raw()
64 *val = data->heater_reg; in si7020_read_raw()
68 ret = i2c_smbus_read_word_swapped(data->client, in si7020_read_raw()
69 chan->type == IIO_TEMP ? in si7020_read_raw()
76 * Humidity values can slightly exceed the 0-100%RH in si7020_read_raw()
79 if (chan->type == IIO_HUMIDITYRELATIVE) in si7020_read_raw()
83 if (chan->type == IIO_TEMP) in si7020_read_raw()
93 * accuracy. in si7020_read_raw()
[all …]
/linux/Documentation/devicetree/bindings/iio/adc/
H A Drichtek,rtq6056.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: RTQ6056 Bi-Directional Current and Power Monitor with 16-bit ADC
10 - ChiYuan Huang <cy_huang@richtek.com>
13 The RTQ6056 is a high accuracy current-sense monitor with I2C and SMBus
19 internal analog-to-digital converter ADC. The programmable calibration,
24 https://www.richtek.com/assets/product_file/RTQ6056/DSQ6056-00.pdf
29 - enum:
30 - richtek,rtq6056
[all …]
H A Dti,adc12138.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Texas Instruments ADC12138 and similar self-calibrating ADCs
10 - Akinobu Mita <akinobu.mita@gmail.com>
19 - ti,adc12130
20 - ti,adc12132
21 - ti,adc12138
34 vref-p-supply:
37 vref-n-supply:
[all …]
/linux/Documentation/devicetree/bindings/iio/pressure/
H A Dhoneywell,hsc030pa.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
23 pressure-triplet (directly extracted from the part number) or in case it's
27 by the sensor. pmin-pascal and pmax-pascal corespond to the minimum and
30 Please note that in case of an SPI-based sensor, the clock signal should not
34 …-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/bo…
35 …-edam.honeywell.com/content/dam/honeywell-edam/sps/siot/en-us/products/sensors/pressure-sensors/bo…
38 - Petre Rodan <petre.rodan@subdimension.ro>
47 honeywell,transfer-function:
[all …]
/linux/Documentation/devicetree/bindings/power/supply/
H A Drichtek,rt9467.yaml1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - ChiYuan Huang <cy_huang@richtek.com>
11 - ChiaEn Wu <chiaen_wu@richtek.com>
14 RT9467 is a switch-mode single cell Li-Ion/Li-Polymer battery charger for
16 MOSFETs, input current sensing and regulation, high-accuracy voltage
20 The RT9467 also features USB On-The-Go (OTG) support. It also integrates
21 D+/D- pin for USB host/charging port detection.
24 https://www.richtek.com/assets/product_file/RT9467/DS9467-01.pdf
[all …]
/linux/Documentation/devicetree/bindings/hwmon/
H A Dadi,adm1275.yaml1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
3 ---
6 $schema: http://devicetree.org/meta-schemas/core.yaml#
11 - Krzysztof Kozlowski <krzk@kernel.org>
14 The ADM1293 and ADM1294 are high accuracy integrated digital power monitors
15 that offer digital current, voltage, and power monitoring using an on-chip,
16 12-bit analog-to-digital converter (ADC), communicated through a PMBus
25 - adi,adm1075
26 - adi,adm1272
27 - adi,adm1275
[all …]
/linux/drivers/crypto/intel/qat/qat_common/
H A Dadf_clock.c1 // SPDX-License-Identifier: GPL-2.0-only
58 delta_us = timespec_to_us(&ts2) - timespec_to_us(&ts1); in measure_clock()
59 } while (delta_us > MEASURE_CLOCK_DELTA_THRESHOLD_US && --tries); in measure_clock()
63 return -ETIMEDOUT; in measure_clock()
74 return -EIO; in measure_clock()
77 delta_us = timespec_to_us(&ts4) - timespec_to_us(&ts3); in measure_clock()
78 } while (delta_us > MEASURE_CLOCK_DELTA_THRESHOLD_US && --tries); in measure_clock()
82 return -ETIMEDOUT; in measure_clock()
85 delta_us = timespec_to_us(&ts3) - timespec_to_us(&ts1); in measure_clock()
87 return -EINVAL; in measure_clock()
[all …]
/linux/include/linux/
H A Dhrtimer_defs.h1 /* SPDX-License-Identifier: GPL-2.0 */
14 * idea of the (in)accuracy of timers. Timer values are rounded up to
36 * struct hrtimer_clock_base - the timer base for a specific clock
71 * struct hrtimer_cpu_base - the per cpu clock bases
77 * @hres_active: State of high resolution mode
80 * @softirq_activated: displays, if the softirq is raised - update of softirq
/linux/Documentation/arch/arm/nwfpe/
H A Dtodo.rst6 POW{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - power
7 RPW{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - reverse power
8 POL{cond}<S|D|E>{P,M,Z} Fd, Fn, <Fm,#value> - polar angle (arctan2)
10 LOG{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - logarithm to base 10
11 LGN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - logarithm to base e
12 EXP{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - exponent
13 SIN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - sine
14 COS{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - cosine
15 TAN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - tangent
16 ASN{cond}<S|D|E>{P,M,Z} Fd, <Fm,#value> - arcsine
[all …]
/linux/Documentation/scsi/
H A DFlashPoint.rst1 .. SPDX-License-Identifier: GPL-2.0
17 FREMONT, CA, -- October 8, 1996 -- Mylex Corporation has expanded Linux
33 Linux is a freely-distributed implementation of UNIX for Intel x86, Sun
53 produces high performance disk array (RAID) controllers, and complementary
71 510/796-6100
78 BusLogic FlashPoint LT/BT-948 Upgrade Program
82 BusLogic FlashPoint LW/BT-958 Upgrade Program
89 particularly well suited for a high performance multitasking operating
91 vendors as the latest thing, and has been sold even on many of their high
99 customers to make sure the BT-946C/956C MultiMaster cards would still be
[all …]

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