wireguard-linux/include/linux/iio/types.h, branch davem/net

iio: core: add IIO_VAL_DECIMAL64_FEMTO format type

2026-08-04T23:03:28Z

Extend the IIO_VAL_DECIMAL64_* family with a femto-scaled variant (scale 15), following the existing MILLI/MICRO/NANO/PICO pattern. Both the read formatting path in __iio_format_value() and the write parsing path in iio_write_channel_info() (via kstrtodec64()) already derive their scale from "type - IIO_VAL_DECIMAL64_BASE", so the new type only needs to be added to the respective switch cases. This is needed by drivers reporting very small SI quantities where the existing pico scale loses precision. For example the Sensirion SLF3S liquid flow sensor reports its volume-flow scale in m^3/s, where the SLF3S-0600F scale is ~1.667e-12 m^3/s: at pico scale only a single significant digit survives, whereas femto scale preserves the full sensor resolution. Signed-off-by: Wadim Mueller Reviewed-by: Rodrigo Alencar Signed-off-by: Jonathan Cameron

iio: core: add decimal value formatting into 64-bit value

2026-06-29T23:15:52Z

Create new format types for iio values (IIO_VAL_DECIMAL64_*), which defines the representation of fixed decimal point values into a single 64-bit number. This new format increases the range of represented values, allowing for integer parts greater than 2^32, as bits are not "wasted" in the fractional part, which can be seen in IIO_VAL_INT_PLUS_MICRO and IIO_VAL_INT_PLUS_NANO. Helpers are created to compose and decompose 64-bit decimals into integer values used in IIO formatting interfaces, which creates consistency and avoid error-prone manual assignments when using wordpart macros. When doing the parsing, kstrtodec64() is used with the scale defined by the specific decimal format type. Signed-off-by: Rodrigo Alencar Reviewed-by: Nuno Sá Signed-off-by: Jonathan Cameron

iio: core: Add IIO_EV_INFO_SCALE to event info

2026-03-01T12:04:07Z

Implement support for IIO_EV_INFO_SCALE in the internal enum iio_event_info to allow proper ABI compliance. This allows drivers (like the ADXL345) to expose event scale attributes using the standard IIO ABI rather than manual device attributes. Signed-off-by: Taha Ed-Dafili <0rayn.dev@gmail.com> Reviewed-by: David Lechner Signed-off-by: Jonathan Cameron

iio: add power and energy measurement modifiers

2025-09-13T12:47:19Z

Add new IIO modifiers to support power and energy measurement devices: Power modifiers: - IIO_MOD_ACTIVE: Real power consumed by the load - IIO_MOD_REACTIVE: Power that oscillates between source and load - IIO_MOD_APPARENT: Magnitude of complex power Signal quality modifiers: - IIO_MOD_RMS: Root Mean Square value Additionally adds: - IIO_CHAN_INFO_POWERFACTOR: Power factor channel info type for representing the ratio of active power to apparent power These modifiers enable proper representation of power measurement devices like energy meters and power analyzers. Signed-off-by: Antoniu Miclaus Signed-off-by: Jonathan Cameron

iio: core: add ADC delay calibration definition

2025-06-09T06:45:37Z

ADCs as ad7606 implement a phase calibration as a delay. Add such definition, needed for ad7606. Signed-off-by: Angelo Dureghello Reviewed-by: Andy Shevchenko Link: https://patch.msgid.link/20250606-wip-bl-ad7606-calibration-v9-2-6e014a1f92a2@baylibre.com Signed-off-by: Jonathan Cameron

iio: core: introduce trough info element for minimum values

2023-12-11T19:37:10Z

The IIO_CHAN_INFO_PEAK info element is used for maximum values and currently there is no equivalent for minimum values. Instead of overloading the existing peak info element, a new info element can be added. In principle there is no need to add a _TROUGH_SCALE element as the scale will be the same as the one required for INFO_PEAK, which in turn is sometimes omitted if a single scale for peaks and raw values is required. Add an IIO_CHAN_INFO_TROUGH info element for minimum values. Signed-off-by: Javier Carrasco Link: https://lore.kernel.org/r/20231211122747.9723-1-579lpy@gmail.com Signed-off-by: Jonathan Cameron

iio: Add event enums for running period and count

2023-07-23T12:16:18Z

There are devices (such as Murata IRS-D200 PIR proximity sensor) that check the data signal with a running period. I.e. for a specified time, they count the number of conditions that have occurred, and then signal if that is more than a specified amount. `IIO_EV_INFO_PERIOD` resets when the condition no longer is true and is therefore not suitable for these devices. Add a new `iio_event_info` `IIO_EV_INFO_RUNNING_PERIOD` that can be used as a running period. Also add a new `IIO_EV_INFO_RUNNING_COUNT` that can be used to specify the number of conditions that must occur during this running period. Signed-off-by: Waqar Hameed Link: https://lore.kernel.org/r/ee4a801ae9b9c4716c7bd23d8f79f232351df8bd.1689753076.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron

iio: Add new event type gesture and use direction for single and double tap

2022-09-05T17:08:42Z

Add new event type for tap called gesture and the direction can be used to differentiate single and double tap. This may be used by accelerometer sensors to express single and double tap events. For directional tap, modifiers like IIO_MOD_(X/Y/Z) can be used along with singletap and doubletap direction. Signed-off-by: Jagath Jog J Link: https://lore.kernel.org/r/20220831063117.4141-2-jagathjog1996@gmail.com Signed-off-by: Jonathan Cameron

iio: core: Introduce _zeropoint for differential channels

2022-08-15T21:30:01Z

Address an ABI gap for device where the offset of both lines in a differential pair may be controlled so as to allow a wider range of inputs, but without having any direct effect of the differential measurement. _offset cannot be used as to remain in line with existing usage, userspace would be expected to apply it as (_raw + _offset) * _scale whereas _zeropoint is not. i.e. If we were computing the differential in software it would be. ((postive_raw + _zeropoint) - (negative_raw + zeropoint) + _offset) * _scale = ((postive_raw - negative_raw) + _offset) * _scale = (differential_raw + _offset) * _scale Similarly calibbias is expected to tweak the measurement seen, not the adjust the two lines of the differential pair. Needed for in_capacitanceX-capacitanceY_zeropoint for the AD7746 CDC driver. Signed-off-by: Jonathan Cameron Reviewed-by: Andy Shevchenko Link: https://lore.kernel.org/r/20220626122938.582107-12-jic23@kernel.org

iio: core: Introduce IIO_VAL_INT_64.

2021-11-17T17:51:34Z

Introduce IIO_VAL_INT_64 to read 64-bit value for channel attribute. Val is used as lower 32 bits. Signed-off-by: Andriy Tryshnivskyy Link: https://lore.kernel.org/r/20211024091627.28031-2-andriy.tryshnivskyy@opensynergy.com Signed-off-by: Jonathan Cameron