summaryrefslogtreecommitdiff
path: root/Documentation/ABI/testing/sysfs-bus-iio
AgeCommit message (Collapse)Author
2025-05-21iio: ABI: add new DAC powerdown modeKim Seer Paller
Add a new powerdown mode for DACs with 7.7kohm and 32kohm resistor to GND. Reviewed-by: David Lechner <dlechner@baylibre.com> Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com> Link: https://patch.msgid.link/20250429-togreg-v7-1-0af9c543b545@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-04-22Documentation: ABI: add events sampling frequency in sysfs-bus-iioJorge Marques
Some devices have an internal clock used by the events to space the conversions. The max1363 introduced the option in commit 168c9d95a940 ("iio:adc:max1363 move from staging.") and ad799x in commit ba1d79613df3 ("staging:iio:ad799x: Use event spec for threshold hysteresis") Signed-off-by: Jorge Marques <jorge.marques@analog.com> Link: https://patch.msgid.link/20250321-abi-oversampling-events-frequency-v1-1-794c1ab2f079@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-03-11Documentation: ABI: add wideband filter type to sysfs-bus-iioJonathan Santos
The Wideband Low Ripple filter is used for AD7768-1 Driver. Document wideband filter option into filter_type_available attribute. Signed-off-by: Jonathan Santos <Jonathan.Santos@analog.com> Reviewed-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Link: https://patch.msgid.link/b390ec6d92dd742ace93bd8e40a0df4379b98e23.1741268122.git.Jonathan.Santos@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-02-08Documentation: ABI: IIO: Re-add sysfs-bus-iio-adc-ad4130Marcelo Schmitt
The ad4130 driver exports in_voltageY-voltageZ_filter_mode and in_voltage-voltage_filter_mode_available attributes to user space. A previous patch merged the documentation for those attributes with the documentation for filter_type/filter_type_available into sysfs-bus-iio. Filter mode and filter type refer to the same feature which is the digital filter applied over ADC samples. However, since datasheets use the term `filter type` and ad4130 driver is the only one using filter_mode, deprecate the filter_mode ABI in favor of filter_type and keep the docs separate to avoid confusion and intricate attribute descriptions. Fixes: 01bb12922b60 ("Documentation: ABI: added filter mode doc in sysfs-bus-iio") Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/c77b2d65f1115c1c394582f55944d6f685058f9c.1738680728.git.marcelo.schmitt@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2025-02-08Documentation: ABI: IIO: Add filter_type documentationMarcelo Schmitt
A previous patch added documentation for filter_type_available attributes. However, the description for the value attribute (filter_type) was missing. Add documentation for filter_type sysfs ABI. Fixes: 01bb12922b60 ("Documentation: ABI: added filter mode doc in sysfs-bus-iio") Signed-off-by: Marcelo Schmitt <marcelo.schmitt@analog.com> Reviewed-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/a8dbccac909e8d11e7d47561935a5575b1354d3a.1738680728.git.marcelo.schmitt@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-12-28iio: ABI: combine current input sectionsDavid Lechner
Combine two duplicate sections describing in_currentY_raw. This went unnoticed until we renamed in_currentX_raw to in_currentY_raw and the kernel test robot found the duplication. Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202412200256.OB5Hmw5Q-lkp@intel.com/ Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20241219-iio-abi-combine-current-input-sections-v1-1-8dcd8221d469@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-12-28iio: ABI: document in_illuminance_hardwaregainJavier Carrasco
This attribute is used for the vl6180 (see vl6180.c), but it is still not documented. Add it to the _hardwaregain list. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://patch.msgid.link/20241215-iio_abi_in_illuminance_hardwaregain-v1-1-d94a59efb937@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-12-28iio: ABI: use Y consistently as channel numberDavid Lechner
Change X to Y when referring to channel number in the ABI documentation. There were only a few cases using X (and one using Z). By far, most documented attributes are using Y for the channel number placeholder. For consistency, we should follow the same convention throughout. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20241216-doc-iio-use-voltagey-consistently-v1-1-9e34a72133bc@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-12-28iio: light: Add support for TI OPT4060 color sensorPer-Daniel Olsson
Add support for Texas Instruments OPT4060 RGBW Color sensor. Signed-off-by: Per-Daniel Olsson <perdaniel.olsson@axis.com> Link: https://patch.msgid.link/20241218104836.2784523-3-perdaniel.olsson@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-11-03iio: Add channel type for attentionRicardo Ribalda
Add a new channel type representing if the user's attention state to the the system. This usually means if the user is looking at the screen or not. Signed-off-by: Ricardo Ribalda <ribalda@chromium.org> Link: https://patch.msgid.link/20241101-hpd-v3-3-e9c80b7c7164@chromium.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-10-22Documentation: ABI: added filter mode doc in sysfs-bus-iioRamona Alexandra Nechita
The filter mode / filter type property is used for ad4130 and ad7779 drivers, therefore the ABI doc file for ad4130 was removed, merging both of them in the sysfs-bus-iio. Since one of the drivers is available from 6.1, the version has been set to 6.1 for these attributes. Signed-off-by: Ramona Alexandra Nechita <ramona.nechita@analog.com> Reviewed-by: Andy Shevchenko <andy@kernel.org> Link: https://patch.msgid.link/20241014143204.30195-3-ramona.nechita@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-09-03iio: ABI: document ad4695 new attributesDavid Lechner
The ad4695 driver now supports calibration using the in_voltageY_calib{scale,bias}[_available] attributes. Only one of these was documented before. This adds rest. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20240820-ad4695-gain-offset-v1-4-c8f6e3b47551@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-17iio: ABI: add missing calibbias attributesDavid Lechner
There are a number of calibbias and calibbias_available attributes that are being used by various drivers that have not been documented yet. This adds attributes found by searching the code for: BIT(IIO_CHAN_INFO_CALIBSCALE) A couple of not quite alphabetical order attributes were moved while touching this. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-4-536b2fea8620@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-17iio: ABI: add missing calibscale attributesDavid Lechner
This adds additional calibscale attributes to the ABI documentation for instances found in drivers by searching the code for: BIT(IIO_CHAN_INFO_CALIBSCALE) Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-3-536b2fea8620@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-17iio: ABI: sort calibscale attributesDavid Lechner
Sort calibscale attributes so that when we add more, they can also be added in alphabetical order. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-2-536b2fea8620@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-17iio: ABI: document calibscale_available attributesDavid Lechner
There are a number of light sensor drivers that have various calibscale_available attributes. Up to now, these were missing from the documentation. Kernel version 4.8 is used since the first use appears to be in commit eb869ade30a6 ("iio: Add tcs3472 color light sensor driver"). Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://patch.msgid.link/20240815-iio-abi-calib-audit-v1-1-536b2fea8620@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-03iio: ABI: generalize shunt_resistor attributeMatteo Martelli
Move ABI documentation for custom shunt resistor attributes into the generic iio documentation file. Exception for pac1934: leave it untouched since it does not comply with common iio ABI generalization. Signed-off-by: Matteo Martelli <matteomartelli3@gmail.com> Link: https://patch.msgid.link/20240722-iio-pac1921-v3-2-05dc9916cb33@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-08-03iio: ABI: add DAC 42kohm_to_gnd powerdown modeKim Seer Paller
Add a new powerdown mode for DACs with 42kohm resistor to GND. Signed-off-by: Kim Seer Paller <kimseer.paller@analog.com> Link: https://patch.msgid.link/20240718051834.32270-3-kimseer.paller@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2024-04-06Documentation: ABI: document in_temp_input fileLuca Weiss
For example the BMP280 barometric pressure sensor on Qualcomm MSM8974-based Nexus 5 smartphone exposes such file in sysfs. Document it. Whilst here, fix up incorrect repeated use of X as a wildcard for in_tempY_input. Signed-off-by: Luca Weiss <luca@z3ntu.xyz> Link: https://lore.kernel.org/r/20240406-in_temp_input-v1-1-a1744a4a49e3@z3ntu.xyz Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-12-11iio: ABI: document temperature and humidity peak/trough raw attributesJavier Carrasco
The in_temp_peak_raw attribute is already in use, but its documentation is still missing. The in_humidityrelative_raw must be documented for a new iio user that supports this attribute. Add temp and humidityrelative use cases. When at it, remove an extra blank space in the description. For users that support minimum values, a new in_<type>_trough_raw attribute is required. Add this attribute and document the first uses of it for temp and humidityrelative types. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20231211122840.9760-1-579lpy@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-12-11doc: iio: Document intensity scale as poorly definedMarek Vasut
Add comment about intensity scale being poorly defined and having no proper units. Signed-off-by: Marek Vasut <marex@denx.de> Link: https://lore.kernel.org/r/20231207134200.329174-1-marex@denx.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-12-04iio: add modifiers for A and B ultraviolet lightJavier Carrasco
Currently there are only two modifiers for ultraviolet light: a generic one for any ultraviolet light (IIO_MOD_LIGHT_UV) and one for deep ultraviolet (IIO_MOD_LIGHT_DUV), which is also referred as ultraviolet C (UV-C) band and covers short-wave ultraviolet. There are still no modifiers for the long-wave and medium-wave ultraviolet bands. These two bands are the main components used to obtain the UV index on the Earth's surface. Add modifiers for the ultraviolet A (UV-A) and ultraviolet B (UV-B) bands. Signed-off-by: Javier Carrasco <javier.carrasco.cruz@gmail.com> Link: https://lore.kernel.org/r/20231110-veml6075-v3-1-6ee46775b422@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-11-16iio: imu: Add driver for BMI323 IMUJagath Jog J
The Bosch BMI323 is a 6-axis low-power IMU that provide measurements for acceleration, angular rate, and temperature. This sensor includes motion-triggered interrupt features, such as a step counter, tap detection, and activity/inactivity interrupt capabilities. The driver supports various functionalities, including data ready, FIFO data handling, and events such as tap detection, step counting, and activity interrupts. Signed-off-by: Jagath Jog J <jagathjog1996@gmail.com> Link: https://lore.kernel.org/r/20231013034808.8948-3-jagathjog1996@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-10-11staging: iio: resolver: ad2s1210: implement fault eventsDavid Lechner
When reading the position and velocity on the AD2S1210, there is also a 3rd byte following the two data bytes that contains the fault flag bits. This patch adds support for reading this byte and generating events when faults occur. The faults are mapped to various channels and event type in order to have a unique event for each fault. Signed-off-by: David Lechner <dlechner@baylibre.com> Link: https://lore.kernel.org/r/20231005-ad2s1210-mainline-v4-13-ec00746840fc@baylibre.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-24Merge branch 'ib-iio-hid-sensors-v6.6-rc1' into togregJonathan Cameron
The deta angle and deta velocity channels were added in parallel with color temperature and chromacity so this merge had to assign a consistent order. I put the color related ones second. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-24iio: Add channel type for chromaticityBasavaraj Natikar
In most cases, ambient color sensors also support the x and y light colors, which represent the coordinates on the CIE 1931 chromaticity diagram. Thus, add channel type for chromaticity. Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Link: https://lore.kernel.org/r/20230919081054.2050714-7-Basavaraj.Natikar@amd.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-24iio: Add channel type light color temperatureBasavaraj Natikar
In most cases, ambient color sensors also support light color temperature, which is measured in kelvin. Thus, add channel type light color temperature. Signed-off-by: Basavaraj Natikar <Basavaraj.Natikar@amd.com> Link: https://lore.kernel.org/r/20230919081054.2050714-3-Basavaraj.Natikar@amd.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12iio: Add IIO_DELTA_VELOCITY channel typeRamona Bolboaca
The delta velocity is defined as a piece-wise integration of acceleration data. The delta velocity represents the linear velocity change between two consecutive measurements and it is measured in m / s (meters per second). In order to track the total linear velocity change during a desired period of time, simply sum-up the delta velocity samples acquired during that time. IIO currently does not offer a suitable channel type for this type of measurements hence this patch adds it. Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20230808075059.645525-3-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-09-12iio: Add IIO_DELTA_ANGL channel typeRamona Bolboaca
The delta angle is defined as a piece-wise integration of angular velocity data. The delta angle represents the amount of angular displacement between two consecutive measurements and it is measured in radians. In order to track the total angular displacement during a desired period of time, simply sum-up the delta angle samples acquired during that time. IIO currently does not offer a suitable channel type for this type of measurements hence this patch adds it. Signed-off-by: Ramona Bolboaca <ramona.bolboaca@analog.com> Reviewed-by: Nuno Sa <nuno.sa@analog.com> Link: https://lore.kernel.org/r/20230808075059.645525-2-ramona.bolboaca@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-07-23iio: Add event enums for running period and countWaqar Hameed
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 <waqar.hameed@axis.com> Link: https://lore.kernel.org/r/ee4a801ae9b9c4716c7bd23d8f79f232351df8bd.1689753076.git.waqar.hameed@axis.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2023-04-10doc: Make sysfs-bus-iio doc more exactMatti Vaittinen
A few IIC channel descriptions explained used units as: data is in foo "that can be processed into an" [unit] value. The "can be processed into" is quite broad statement as it does not really explain what this processing means. This makes units pretty much useless. After discussion with Jonathan, it seems the units for these channels should also be well-defined as for all other channels. The processing means the standard scale and offset application that is used throughout the IIO. Let's make it more obvious by stating that the units are [unit] after scale ane offset are applied. Signed-off-by: Matti Vaittinen <mazziesaccount@gmail.com> Link: https://lore.kernel.org/r/41eafb0caa510cddf650cf5ff940639a184f3005.1677331779.git.mazziesaccount@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document "serialnumber" sysfs attributeAndrea Merello
Add ABI documentation for the new "serialnumber" sysfs attribute. The first user is the bno055 IIO driver. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-11-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document pitch, yaw, roll modifiersAndrea Merello
Introduce ABI documentation for new modifiers used for reporting rotations expressed as euler angles (i.e. yaw, pitch, roll). It looks like we have some unit inconsistency along various IIO modifiers: it seems that incli is in deg, angl is in radians and rot isn't documented, but at least the adis16209 driver has rot in deg. Here we use deg (so angl is the only one using radians). Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-6-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-21iio: document linear acceleration modifiersAndrea Merello
Introduce ABI documentation for new IIO modifiers used for reporting "linear acceleration" measures. Signed-off-by: Andrea Merello <andrea.merello@iit.it> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220907132205.28021-3-andrea.merello@iit.it Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-09-05iio: Add new event type gesture and use direction for single and double tapJagath Jog J
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 <jagathjog1996@gmail.com> Link: https://lore.kernel.org/r/20220831063117.4141-2-jagathjog1996@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-08-15iio: core: Introduce _zeropoint for differential channelsJonathan Cameron
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 <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220626122938.582107-12-jic23@kernel.org
2022-08-15iio: ABI: Fix wrong format of differential capacitance channel ABI.Jonathan Cameron
in_ only occurs once in these attributes. Fixes: 0baf29d658c7 ("staging:iio:documentation Add abi docs for capacitance adcs.") Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Link: https://lore.kernel.org/r/20220626122938.582107-3-jic23@kernel.org
2022-08-15Documentation: ABI: testing: rtq6056: Update ABI docsChiYuan Huang
Add documentation for the usage of voltage channel integration time. Signed-off-by: ChiYuan Huang <cy_huang@richtek.com> Link: https://lore.kernel.org/r/1658242365-27797-4-git-send-email-u0084500@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-07-18iio: ABI: stm32-timer-trigger: Fuse unusual ABI into main doc.Jonathan Cameron
We can't duplicate the description of sampling_frequency. This device has some unusual requirements which we solved by giving a sampling_frequency of 0 special meaning. As such add a note about this unusual usage to the main documentation. Whilst I don't particularly like this resolution, it is the best I could come up with given earlier discussion on this topic. Link: https://lore.kernel.org/linux-iio/20210315101217.00002c50@Huawei.com/ Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Cc: Fabrice Gasnier <fabrice.gasnier@foss.st.com> Reviewed-by: Mauro Carvalho Chehab <mchehab@kernel.org> Link: https://lore.kernel.org/r/20220626165511.602202-4-jic23@kernel.org
2022-06-11iio: ABI: Add a new location labelGwendal Grignou
Add "accel-camera" when an IMU is location near the camera in a swivel sub-assembly. These IMU are used for AR applications. Signed-off-by: Gwendal Grignou <gwendal@chromium.org> Link: https://lore.kernel.org/r/20220427190804.961697-2-gwendal@chromium.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-02-21Documentation: ABI: testing: admv1014: add ABI docsAntoniu Miclaus
Add documentation for the use of the Digital Attenuator gain. Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com> Link: https://lore.kernel.org/r/20220215081216.67706-3-antoniu.miclaus@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-02-21iio: ABI: add note about configuring other attributes during buffer captureCosmin Tanislav
It might be impossible to configure other attributes (e.g.: events, scale, sampling rate) if they impact the currently active buffer capture session. On ADXL367, writing to register before 0x2E requires the device to be placed in standby mode, otherwise the changes might be effective for only part of a measurement. To ensure this requirement, the configuration attributes of the IIO device try to claim direct mode before switching to standby mode. During a buffer capture, direct mode cannot be claimed, and the attribute write callback returns -EBUSY. Describe this behavior in the buffer/enable attribute description. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Link: https://lore.kernel.org/r/20220214073810.781016-4-cosmin.tanislav@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2022-02-21iio: ABI: document mag_referencedCosmin Tanislav
Some accelerometers that support activity and inactivity events also support a referenced mode, in which the gravitational acceleration is taken as a point of reference before comparing the acceleration to the specified activity and inactivity magnitude. For example, in the case of the ADXL367, for activity detection, the formula is: abs(acceleration - reference) > magnitude Add a new event type that makes this behavior clear. Signed-off-by: Cosmin Tanislav <cosmin.tanislav@analog.com> Link: https://lore.kernel.org/r/20220214073810.781016-3-cosmin.tanislav@analog.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-19iio: documentation: Document scd4x calibration useRoan van Dijk
Add entries from Documentation/ABI/testing/sysfs-bus-iio-scd30 to Documentation/ABI/testing/sysfs-bus-iio. The attributes of the scd4x and scd30 are common. Remove Documentation/ABI/testing/sysfs-bus-iio-scd30. Signed-off-by: Roan van Dijk <roan@protonic.nl> Link: https://lore.kernel.org/r/20211008101706.755942-5-roan@protonic.nl Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-10-19iio: ABI: Document in_concentration_co2_scaleJacopo Mondi
Document the 'in_concentration_co2_scale' standard IIO attribute. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> Link: https://lore.kernel.org/r/20210920135413.140310-5-jacopo+renesas@jmondi.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-07-05Merge tag 'staging-5.14-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging / IIO driver updates from Greg KH: "Here is the big set of IIO and staging driver patches for 5.14-rc1. Loads of IIO driver updates and additions in here, the shortlog has the full details. For the staging side, we moved a few drivers out of staging, and deleted the kpc2000 drivers as the original developer asked us to because no one was working on them anymore. Also in here are loads of coding style cleanups due to different intern projects focusing on the staging tree to try to get experience doing kernel development. All of these have been in the linux-next tree for a while with no reported problems" * tag 'staging-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (744 commits) staging: hi6421-spmi-pmic: cleanup some macros staging: hi6421-spmi-pmic: change identation of a table staging: hi6421-spmi-pmic: change a return code staging: hi6421-spmi-pmic: better name IRQs staging: hi6421-spmi-pmic: use devm_request_threaded_irq() staging: hisilicon,hi6421-spmi-pmic.yaml: cleanup descriptions spmi: hisi-spmi-controller: move driver from staging phy: phy-hi3670-usb3: move driver from staging into phy staging: rtl8188eu: remove include/rtw_debug.h header staging: rtl8188eu: remove GlobalDebugLevel variable staging: rtl8188eu: remove DRIVER_PREFIX preprocessor definition staging: rtl8188eu: remove RT_TRACE macro staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_recv.c staging: rtl8188eu: remove all RT_TRACE calls from hal/hal_intf.c staging: rtl8188eu: remove all RT_TRACE calls from hal/rtl8188eu_xmit.c staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_xmit.c staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_pwrctrl.c staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_recv.c staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ioctl_set.c staging: rtl8188eu: remove all RT_TRACE calls from core/rtw_ieee80211.c ...
2021-05-27iio: ABI: sysfs-bus-iio: avoid a warning when doc is builtMauro Carvalho Chehab
The description of those vars produce this warning: Documentation/ABI/testing/sysfs-bus-iio:799: WARNING: Inline emphasis start-string without end-string. Due to an asterisk, which is the markup for emphasis. One possible fix would be to use ``*_timeout`` to avoid it, but looking at the descriptions of other fields in this file, a common pattern is to refer to "these" when talking about the API calls that are described. So, change the text in order to preserve the meaning while avoiding the need of using an asterisk there. Reported-by: Jonathan Corbet <corbet@lwn.net> Reported-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/dbf0d94f85217f103d77dc8389c8db272f5702d2.1621944866.git.mchehab+huawei@kernel.org [jc fixed specifiy->specify] Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-05-27iio: ABI: sysfs-bus-iio: fix a typoMauro Carvalho Chehab
Descrption -> Description This causes some errors when parsed via scripts/get_abi.pl. Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/fa90a2deebac80da42b1ad4cf570c4ace436577d.1621944866.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2021-05-17iio: Documentation: move incompatible ABI to obsoleteMauro Carvalho Chehab
Commit 63cd35f34d2e ("iio: Documentation: update definitions for bufferY and scan_elements") updated iio documentation in order to point to the newly per-buffer API, as it is now possible to support multi buffers. While the previous ABI will be kept forever, the best is for applications to use the 5.11+ ABI. So, move the legacy one ABI/obsolete. This fixes an issue with scripts/get_abi.pl, that doesn't accept two different Kernel version support for the same API set. Fixes: 63cd35f34d2e ("iio: Documentation: update definitions for bufferY and scan_elements") Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/a2c802049adee6a5710a58082cfdc1132c5e4c11.1619532170.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2021-05-17iio:ABI docs: Move specific description of out_altvoltageX_frequency to main ↵Jonathan Cameron
docs. The adf4371 has channels that are very closely coupled, so additional documentation is needed to express these constraints. Unfortunately having the same sysfs filename in multiple documentation does not work well when generating automated documentation. To avoid this issue, we add a new device specific description to the main docs and remove the one in the device specific file. Fixes $ scripts/get_abi.pl validate Warning: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency is defined 2 times: ./Documentation/ABI/testing/sysfs-bus-iio-frequency-adf4371:0 ./Documentation/ABI/testing/sysfs-bus-iio:599 Cc: Alexandru Ardelean <alexandru.ardelean@analog.com> Reported-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20210117153816.696693-8-jic23@kernel.org
generated by cgit (git 2.34.1) at 2025-07-25 19:23:41 +0000