Add IIO support for counter devices
Status from this message: Applied
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- v5 Latest2 patches 2 repliesApplied
- v42 patches 6 repliesSuperseded
- v32 patches 2 repliesSuperseded
Earlier versions · 2
| Version | Posted | Patches | Replies | Status |
|---|---|---|---|---|
| v2 | 2 patches | 1 reply | Superseded | |
| v1 | 2 patches | 3 replies | Superseded |
Changes in v5 from the cover letter
- Refactored scale to handle values of 1, 0.5, and 0.25, in order to be consistent with the multiplication usage of the other interfaces
- Reimplemented preset as an ext_info since the preset functionality is rather device specific
- Reimplemented ab_enable ext_info as IIO_CHAN_INFO_ENABLE; this should make the counter enable/disable interface more intuitive
- Renamed "preset_enable" attribute to "set_to_preset_on_index" (and refactored as a boolean) to make the functionality clearer
- Updated documentation to account for the changes in this patchset
Patches in v5 Applied
| # | Subject and files | Size | Replies | Applied |
|---|---|---|---|---|
| 1/2 | iio: Implement counter channel type and info constantsDocumentation/ drivers/ include/ | +22 | 1 reply | |
| 2/2 | iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8Documentation/ MAINTAINERS drivers/ +4 more | +757 | 1 reply |
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Cover letter [PATCH v5 0/2] Add IIO support for counter devices
Changes in v5:
- Refactored scale to handle values of 1, 0.5, and 0.25, in order to be consistent with the multiplication usage of the other interfaces
- Reimplemented preset as an ext_info since the preset functionality is rather device specific
- Reimplemented ab_enable ext_info as IIO_CHAN_INFO_ENABLE; this should make the counter enable/disable interface more intuitive
- Renamed "preset_enable" attribute to "set_to_preset_on_index" (and refactored as a boolean) to make the functionality clearer
- Updated documentation to account for the changes in this patchset
This patchset adds new IIO channel type constants to facilitate support for counter devices. In addition, a new "counter" subdirectory is created to house drivers for these counter devices.
Quadrature encoders, such as rotary encoders and linear encoders, are devices which are capable of encoding the relative position and direction of motion of a shaft. This patchset introduces several IIO constants for supporting quadrature encoder counter devices.
IIO_COUNT: Current count (main data provided by the counter device)
IIO_INDEX: Counter device index value
Specifically, this patchset introduces a driver to support the ACCES 104-QUAD-8 device, a general purpose quadrature encoder counter/interface board capable of monitoring the outputs of eight encoders.
William Breathitt Gray (2):
iio: Implement counter channel type and info constants
iio: 104-quad-8: Add IIO support for the ACCES 104-QUAD-8
Documentation/ABI/testing/sysfs-bus-iio | 18 + .../ABI/testing/sysfs-bus-iio-counter-104-quad-8 | 125 +++++ MAINTAINERS | 6 + drivers/iio/Kconfig | 1 + drivers/iio/Makefile | 1 + drivers/iio/counter/104-quad-8.c | 593 +++++++++++++++++++++ drivers/iio/counter/Kconfig | 24 + drivers/iio/counter/Makefile | 7 + drivers/iio/industrialio-core.c | 2 + include/uapi/linux/iio/types.h | 2 + 10 files changed, 779 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-bus-iio-counter-104-quad-8 create mode 100644 drivers/iio/counter/104-quad-8.c create mode 100644 drivers/iio/counter/Kconfig create mode 100644 drivers/iio/counter/Makefile
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