kernel/linux.git/Documentation/iio, branch v7.2-rc1

docs: iio: adc: ad4691: add driver documentation

2026-05-31T10:14:22+00:00

Add RST documentation for the AD4691 family ADC driver covering supported devices, IIO channels, operating modes, oversampling, reference voltage, LDO supply, reset, GP pins, SPI offload support, and buffer data format. Signed-off-by: Radu Sabau Signed-off-by: Jonathan Cameron

Documentation: iio: make ADXL Y-axis calibbias description consistent

2026-05-31T09:59:40+00:00

The Y-axis calibbias rows in adxl345.rst, adxl313.rst and adxl380.rst use a different wording than the matching X-axis and Z-axis rows in the same tables: the X/Z rows say "Calibration offset for the X/Z-axis accelerometer channel." while the Y row says "Y-axis (or y-axis) acceleration offset correction". Make the Y-axis row match the other two so each driver's sysfs table has consistent capitalisation and wording. Signed-off-by: Stepan Ionichev Signed-off-by: Jonathan Cameron

iio: adxl313: fix typos in documentation

2026-05-31T09:59:35+00:00

Add missing space in "ADXL313is" and improve grammar for "a single types of channels" to "multiple channels of a single type" as suggested by Jonathan Cameron. Wrap long line as suggested by Andy Shevchenko. Signed-off-by: Wang Zihan Signed-off-by: Jonathan Cameron

iio: ABI: Add support for floating-point numbers in buffer scan elements

2026-04-27T08:58:16+00:00

In the data storage description of a scan element, the first character after the colon can have the values 's' and 'u' to specify signed and unsigned integers, respectively. Add 'f' as an allowed value to specify floating-point numbers formatted according to the IEEE 754 standard. Signed-off-by: Francesco Lavra Signed-off-by: Jonathan Cameron

Docs: iio: ad7191 Correct clock configuration

2026-03-27T07:31:19+00:00

Correct the ad7191 documentation to match the datasheet: - Fix inverted CLKSEL pin logic: device uses external clock when pin is inactive, and internal CMOS/crystal when high. - Correct CMOS-compatible clock pin from MCLK2 to MCLK1. Signed-off-by: Ammar Mustafa Signed-off-by: Jonathan Cameron

Docs: iio: ad4030: Add double PWM SPI offload doc

2026-03-01T12:04:44+00:00

Document double PWM setup SPI offload wiring schema. Reviewed-by: David Lechner Signed-off-by: Marcelo Schmitt Signed-off-by: Jonathan Cameron

docs: iio: adxl345: update event attributes and scaling math

2026-03-01T12:04:34+00:00

Update the documentation to reflect the recent driver additions for event scaling and the double tap threshold value, alongside correcting existing technical errors in scale calculations. Key changes: - Fix the 62.5 g/LSB typo to 62.5 mg/LSB and add SI unit conversion. - Correct decimal precision of in_accel_scale and in_accel_scale_available to match the actual SI unit (m/s^2) values reported by the driver. - Document the newly generated event scale attributes in the ABI table (e.g., in_accel_mag_rising_scale, in_accel_gesture_singletap_scale). - Document the newly exposed in_accel_gesture_doubletap_value attribute. - Add a sysfs example showing how to read and interpret the newly implemented event scale factor. Suggested-by: Jonathan Cameron Signed-off-by: Taha Ed-Dafili <0rayn.dev@gmail.com> Reviewed-by: David Lechner Signed-off-by: Jonathan Cameron

docs: iio: adxl345: grammar and formatting cleanups

2026-03-01T12:03:54+00:00

Correct several grammatical errors, typos, and pluralization issues throughout the ADXL345 documentation. Key changes include: - Changing 'generic' to 'general-purpose' - Correcting 'axis' to 'axes' in multiple tables and descriptions - Improving phrasing in the device attributes section - Fixing 'latent' to 'latency' in usage examples - Sorting the existing event attribute table alphabetically for better readability and to establish a clean baseline for future additions. Suggested-by: David Lechner Signed-off-by: Taha Ed-Dafili <0rayn.dev@gmail.com> Reviewed-by: David Lechner Signed-off-by: Jonathan Cameron

docs: iio: ad4062: Add GPIO Controller support

2025-12-31T17:59:25+00:00

Explains the GPIO controller support with emphasis on the mask depending on which GPs are exposed. Signed-off-by: Jorge Marques Reviewed-by: Linus Walleij Signed-off-by: Jonathan Cameron

docs: iio: ad4062: Add IIO Events support

2025-12-31T17:59:25+00:00

Explains the IIO Events support. Signed-off-by: Jorge Marques Signed-off-by: Jonathan Cameron