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/linux/Documentation/userspace-api/media/v4l/
H A Ddev-touch.rst27 lines, or tx/rx). Mutual Capacitance measured is at the nodes where the
28 conductors cross. Alternatively, Self Capacitance measures the signal from each
31 A touch input may be determined by comparing the raw capacitance measurement to
36 The reference measurement takes account of variations in the capacitance across
/linux/Documentation/ABI/testing/
H A Dsysfs-bus-iio-cdc-ad77467 calibscale. For calibscale, a full scale capacitance should
8 be connected to the capacitance input and a
H A Dsysfs-bus-iio-health-afe440x38 Get and set the resistance and the capacitance settings for the
/linux/Documentation/devicetree/bindings/input/
H A Dmicrochip,cap11xx.yaml63 smaller delta capacitance is required to
81 capacitance corresponding to a "lighter" touch.
105 been detected. A higher value means a larger difference in capacitance
120 Gain is based on touch pad capacitance range
H A Diqs269a.yaml187 description: Increases the global capacitance adder from 0.5 pF to 1.5 pF.
336 Decreases the internal measurement capacitance from 60 pF to 15 pF.
347 Specifies the capacitance to be added to the channel as follows:
363 Specifies the bias current applied during projected-capacitance
376 0: Self capacitance
377 1: Projected capacitance
H A Diqs626a.yaml192 Decreases the internal measurement capacitance from 60 pF to 15 pF.
268 Specifies the bias current applied during projected-capacitance
299 description: Enables projected-capacitance sensing (ULP channel only).
364 Specifies the capacitance to be added to the channel as follows:
378 0: Self capacitance
379 1: Projected capacitance
530 Decreases the internal measurement capacitance from 60 pF to 15 pF.
589 Specifies the bias current applied during projected-capacitance
H A Dfsl,mpr121-touchkey.yaml13 The MPR121 supports up to 12 completely independent electrodes/capacitance
/linux/arch/arm/mach-omap2/
H A Dvc.c96 /* Default I2C trace length on pcb, 6.3cm. Used for capacitance calculations. */
658 * channel capacitance and set the timing parameters based on this.
664 u32 capacitance; in omap4_vc_i2c_timing_init() local
674 /* PCB trace capacitance, 0.125pF / mm => mm / 8 */ in omap4_vc_i2c_timing_init()
675 capacitance = DIV_ROUND_UP(sr_i2c_pcb_length, 8); in omap4_vc_i2c_timing_init()
677 /* OMAP pad capacitance */ in omap4_vc_i2c_timing_init()
678 capacitance += 4; in omap4_vc_i2c_timing_init()
680 /* PMIC pad capacitance */ in omap4_vc_i2c_timing_init()
681 capacitance += voltdm->pmic->i2c_pad_load; in omap4_vc_i2c_timing_init()
683 /* Search for capacitance match in the table */ in omap4_vc_i2c_timing_init()
[all …]
/linux/Documentation/devicetree/bindings/i2c/
H A Dsnps,designware-i2c.yaml110 snps,bus-capacitance-pf:
113 This property indicates the bus capacitance in picofarads (pF).
150 snps,bus-capacitance-pf = <400>;
/linux/include/linux/mfd/
H A Dsi476x-platform.h185 * @xcload: Selects the amount of additional on-chip capacitance to
187 * GND. One half of the capacitance value shown here is the
188 * additional load capacitance presented to the xtal. The
/linux/Documentation/devicetree/bindings/iio/cdc/
H A Dadi,ad7746.yaml7 title: AD7746 24-Bit Capacitance-to-Digital Converter with Temperature Sensor
13 AD7746 24-Bit Capacitance-to-Digital Converter with Temperature Sensor
H A Dadi,ad7150.yaml7 title: Analog device AD7150 and similar capacitance to digital converters.
/linux/Documentation/driver-api/thermal/
H A Dcpu-idle-cooling.rst146 Power = Capacitance x Voltage^2 x Frequency x Utilisation
149 wrong in the system setup). The ‘Capacitance’ and ‘Utilisation’ are a
152 ‘Capacitance’ and the ‘Utilisation’ into a single term which is the
H A Dcpu-cooling-api.rst100 Pdyn = Capacitance * Voltage^2 * Frequency * Utilisation
102 Where `capacitance` is a constant that represents an indicative
/linux/drivers/iio/cdc/
H A DMakefile3 # Makefile for industrial I/O capacitance to digital converter (CDC) drivers
H A DKconfig5 menu "Capacitance to digital converters"
H A Dad7150.c65 * @threshold: thresholds for simple capacitance value events
66 * @thresh_sensitivity: threshold for simple capacitance offset
130 * Base units for capacitance are nano farads and the value in ad7150_read_raw()
/linux/drivers/input/mouse/
H A Dhgpk.h15 HGPK_MODEL_B = 0x28, /* B2s, has capacitance issues */
/linux/Documentation/driver-api/iio/
H A Dintro.rst21 * capacitance to digital converters (CDCs)
/linux/Documentation/devicetree/bindings/net/ieee802154/
H A Datmel,at86rf233.yaml39 Fine tuning the internal capacitance arrays of xtal pins:
/linux/include/linux/spi/
H A Dads7846.h14 * capacitance on the X/Y drivers. If set to non-zero, two samples
/linux/Documentation/devicetree/bindings/clock/
H A Drenesas,r9a08g045-vbattb.yaml49 description: load capacitance of the on board crystal
/linux/Documentation/devicetree/bindings/iio/adc/
H A Dfsl,vf610-adc.yaml58 source resistance (R_as) and capacitance (C_as). Refer the datasheet's
/linux/drivers/input/keyboard/
H A Dmpr121_touchkey.c40 * enabled capacitance sensing inputs and its run/suspend mode.
165 * Capacitance on sensing input varies and needs to be compensated. in mpr121_phys_init()
/linux/drivers/input/misc/
H A Dad714x-i2c.c95 MODULE_DESCRIPTION("Analog Devices AD714X Capacitance Touch Sensor I2C Bus Driver");

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