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/Documentation/media/uapi/v4l/
Dext-ctrls-rf-tuner.rst57 Enables/disables LNA automatic gain control (AGC)
60 Enables/disables mixer automatic gain control (AGC)
63 Enables/disables IF automatic gain control (AGC)
68 LNA gain and the RF gain in this document is that the LNA gain is
69 integrated in the tuner chip while the RF gain is a separate chip.
70 There may be both RF and LNA gain controls in the same device. The
74 LNA (low noise amplifier) gain is first gain stage on the RF tuner
77 ``V4L2_CID_RF_TUNER_RF_GAIN`` to understand how RF gain and LNA gain
82 Mixer gain is second gain stage on the RF tuner signal path. It is
88 IF gain is last gain stage on the RF tuner signal path. It is
Dext-ctrls-image-process.rst59 Digital gain is the value by which all colour components
60 are multiplied by. Typically the digital gain applied is the
62 digital gain the control value needs to be 0x100. The no-gain
Dext-ctrls-image-source.rst43 Analogue gain is gain affecting all colour components in the pixel
44 matrix. The gain operation is performed in the analogue domain
Dcontrol.rst79 Picture contrast or luma gain.
82 Picture color saturation or chroma gain.
142 Automatic gain/exposure control.
145 Gain control.
147 Primarily used to control gain on e.g. TV tuners but also on
148 webcams. Most devices control only digital gain with this control
149 but on some this could include analogue gain as well. Devices that
150 recognise the difference between digital and analogue gain use
190 Chroma automatic gain control.
193 Adjusts the Chroma gain control (for use when chroma AGC is
/Documentation/devicetree/bindings/iio/light/
Dus5182d.txt14 - upisemi,upper-dark-gain: 8-bit dark gain compensation factor(4 int and 4
17 - upisemi,lower-dark-gain: 8-bit dark gain compensation factor(4 int and 4
33 There will be no dark-gain compensation by default when ALS > thresh
34 (0 * dark-gain), and a 1.35 compensation factor when ALS < thresh.
43 upisemi,upper-dark-gain = /bits/ 8 <0x00>;
44 upisemi,lower-dark-gain = /bits/ 8 <0x16>;
Dtsl2563.txt10 - amstaos,cover-comp-gain : integer used as multiplier for gain
18 amstaos,cover-comp-gain = <16>;
/Documentation/devicetree/bindings/iio/afe/
Dcurrent-sense-amplifier.txt15 - sense-gain-mult: Amplifier gain multiplier. The default is <1>.
16 - sense-gain-div: Amplifier gain divider. The default is <1>.
25 sense-gain-mul = <50>;
/Documentation/ABI/testing/
Dsysfs-bus-iio-isl295016 This sensor has an automatic gain control (agc) loop
8 level by controlling programmable gain amplifiers. The
9 criteria for optimal gain is determined by the sensor.
11 Return the actual gain value as an integer in [0; 65536]
14 The agc gain read when measuring crosstalk shall be
Dsysfs-bus-iio-distance-srf086 Show or set the gain boost of the amp, from 0-31 range.
Dsysfs-bus-iio-light-tsl25835 This property causes an internal calibration of the als gain trim
Dsysfs-bus-iio-proximity-as393514 Show or set the gain boost of the amp, from 0-31 range.
/Documentation/devicetree/bindings/regulator/
Dmax1586-regulator.txt6 - v3-gain: integer specifying the V3 gain as per datasheet
16 v3-gain = <1000000>;
/Documentation/devicetree/bindings/sound/
Dgoogle,cros-ec-codec.txt12 - max-dmic-gain: A number for maximum gain in dB on digital microphone.
24 max-dmic-gain = <43>;
Dmaxim,max9759.txt8 - gain-gpios : the 2 gpios connected to the g1 and g2 pins
16 gain-gpios = <&gpio3 23 GPIO_ACTIVE_LOW>,
Dcs35l34.txt41 - cirrus,gain-zc-disable: Boolean property. If set, the gain change will take
/Documentation/devicetree/bindings/iio/adc/
Dads1015.txt18 - pga is the programmable gain amplifier (values are full scale)
64 - ti,gain : the programmable gain amplifier setting
71 ti,gain = <3>;
Dadi,ad7780.yaml15 Its interface also allows writing on the FILTER and GAIN GPIO pins on the
51 adi,gain-gpios:
53 Must be the device tree identifier of the GAIN pin. Only for
84 adi,gain-gpios = <&gpio1 5 GPIO_ACTIVE_LOW>;
/Documentation/devicetree/bindings/input/
Dcap11xx.txt24 microchip,sensor-gain: Defines the gain of the sensor circuitry. This
29 By default, a gain of 1 is set.
50 microchip,sensor-gain = <2>;
/Documentation/devicetree/bindings/iio/potentiostat/
Dlmp91000.txt14 - ti,external-tia-resistor: if the property ti,tia-gain-ohm is not defined this
19 - ti,tia-gain-ohm: ohm value of the internal resistor for the transimpedance
30 ti,tia-gain-ohm = <7500>;
/Documentation/sound/soc/
Dpops-clicks.rst31 a PGA (programmable gain amplifier) before being output to the speakers.
51 when a volume control is changed near its maximum gain value. The zipper noise
52 is heard when the gain increase or decrease changes the mean audio signal
54 for each volume control. The ZC forces the gain change to occur when the signal
/Documentation/input/
Dff.rst89 - FF_GAIN gain is adjustable
183 Setting the gain
186 Not all devices have the same strength. Therefore, users should set a gain
192 /* Set the gain of the device
193 int gain; /* between 0 and 100 */
198 ie.value = 0xFFFFUL * gain / 100;
201 perror("set gain");
/Documentation/devicetree/bindings/leds/
Dleds-is31fl319x.txt16 - audio-gain-db : audio gain selection for external analog modulation input.
/Documentation/misc-devices/
Dapds990x.txt31 ALS contains 4 different gain steps. Driver automatically
32 selects suitable gain step. After each measurement, reliability of the results
/Documentation/sound/designs/
Dcontrol-names.rst102 [Analogue|Digital] Capture Switch aka input gain switch
103 [Analogue|Digital] Capture Volume aka input gain volume
104 [Analogue|Digital] Playback Switch aka output gain switch
105 [Analogue|Digital] Playback Volume aka output gain volume
/Documentation/devicetree/bindings/phy/
Dapm-xgene-phy.txt27 - apm,tx-boost-gain : Frequency boost AC (LSB 3-bit) and DC (2-bit)
28 gain control. Two set of 3-tuple setting for each

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