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| author | Antoniu Miclaus <antoniu.miclaus@analog.com> | 2021-11-19 11:56:27 +0300 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-11-27 19:12:23 +0300 |
| commit | ffc7c5172a6d1f7ec468066a7172ce65baf1e3e1 (patch) | |
| tree | f7b615c572e0e4872568d148e1953a6ad8c0d66e /include/linux/iio | |
| parent | ab1fb45579d876aee70eb736d3d9e6a9bacc798d (diff) | |
| download | linux-ffc7c5172a6d1f7ec468066a7172ce65baf1e3e1.tar.xz | |
iio: expose shared parameter in IIO_ENUM_AVAILABLE
The shared parameter should be configurable based on its usage, and not
constrained to IIO_SHARED_BY_TYPE.
This patch aims to improve the flexibility in using the
IIO_ENUM_AVAILABLE define and avoid redefining custom iio enums that
expose the shared parameter.
An example is the ad5766.c driver where IIO_ENUM_AVAILABLE_SHARED was
defined in order to achieve `shared` parameter customization.
The current state of the IIO_ENUM_AVAILABLE implementation will imply
similar redefinitions each time a driver will require access to the
`shared` parameter. An example would be admv1013 driver which will
require custom device attribute for the frequency translation modes:
Quadrature I/Q mode and Intermediate Frequency mode.
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com>
Link: https://lore.kernel.org/r/20211119085627.6348-1-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio')
| -rw-r--r-- | include/linux/iio/iio.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index 324561b7a5e8..07025d6b3de1 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -103,15 +103,16 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev, /** * IIO_ENUM_AVAILABLE() - Initialize enum available extended channel attribute * @_name: Attribute name ("_available" will be appended to the name) + * @_shared: Whether the attribute is shared between all channels * @_e: Pointer to an iio_enum struct * * Creates a read only attribute which lists all the available enum items in a * space separated list. This should usually be used together with IIO_ENUM() */ -#define IIO_ENUM_AVAILABLE(_name, _e) \ +#define IIO_ENUM_AVAILABLE(_name, _shared, _e) \ { \ .name = (_name "_available"), \ - .shared = IIO_SHARED_BY_TYPE, \ + .shared = _shared, \ .read = iio_enum_available_read, \ .private = (uintptr_t)(_e), \ } |