diff options
Diffstat (limited to 'include/linux/iio/iio.h')
| -rw-r--r-- | include/linux/iio/iio.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index b2b16772c651..7c29cb0124ae 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -148,6 +148,37 @@ ssize_t iio_enum_write(struct iio_dev *indio_dev, } /** + * struct iio_mount_matrix - iio mounting matrix + * @rotation: 3 dimensional space rotation matrix defining sensor alignment with + * main hardware + */ +struct iio_mount_matrix { + const char *rotation[9]; +}; + +ssize_t iio_show_mount_matrix(struct iio_dev *indio_dev, uintptr_t priv, + const struct iio_chan_spec *chan, char *buf); +int of_iio_read_mount_matrix(const struct device *dev, const char *propname, + struct iio_mount_matrix *matrix); + +typedef const struct iio_mount_matrix * + (iio_get_mount_matrix_t)(const struct iio_dev *indio_dev, + const struct iio_chan_spec *chan); + +/** + * IIO_MOUNT_MATRIX() - Initialize mount matrix extended channel attribute + * @_shared: Whether the attribute is shared between all channels + * @_get: Pointer to an iio_get_mount_matrix_t accessor + */ +#define IIO_MOUNT_MATRIX(_shared, _get) \ +{ \ + .name = "mount_matrix", \ + .shared = (_shared), \ + .read = iio_show_mount_matrix, \ + .private = (uintptr_t)(_get), \ +} + +/** * struct iio_event_spec - specification for a channel event * @type: Type of the event * @dir: Direction of the event @@ -527,6 +558,8 @@ void iio_device_unregister(struct iio_dev *indio_dev); int devm_iio_device_register(struct device *dev, struct iio_dev *indio_dev); void devm_iio_device_unregister(struct device *dev, struct iio_dev *indio_dev); int iio_push_event(struct iio_dev *indio_dev, u64 ev_code, s64 timestamp); +int iio_device_claim_direct_mode(struct iio_dev *indio_dev); +void iio_device_release_direct_mode(struct iio_dev *indio_dev); extern struct bus_type iio_bus_type; |