diff options
| author | Antoniu Miclaus <antoniu.miclaus@analog.com> | 2025-02-14 15:19:48 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2025-02-16 15:11:55 +0000 |
| commit | fc3fdb835eebb2ba88c6fdbf2c8b9eae1ceab106 (patch) | |
| tree | 3fa0d6796629e23ad992461f79b9af3ee534d943 /drivers | |
| parent | 4018ab42636cbea1bcf4fd69afc31d51cd905ba0 (diff) | |
iio: backend: add support for data size set
Add backend support for setting the data size used.
This setting can be adjusted within the IP cores interfacing devices.
Reviewed-by: Nuno Sa <nuno.sa@analog.com>
Reviewed-by: David Lechner <dlechner@baylibre.com>
Signed-off-by: Antoniu Miclaus <antoniu.miclaus@analog.com>
Link: https://patch.msgid.link/20250214131955.31973-3-antoniu.miclaus@analog.com
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iio/industrialio-backend.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-backend.c b/drivers/iio/industrialio-backend.c index 8bf3d570da1b..2088afa7a55c 100644 --- a/drivers/iio/industrialio-backend.c +++ b/drivers/iio/industrialio-backend.c @@ -661,6 +661,27 @@ int iio_backend_interface_type_get(struct iio_backend *back, EXPORT_SYMBOL_NS_GPL(iio_backend_interface_type_get, "IIO_BACKEND"); /** + * iio_backend_data_size_set - set the data width/size in the data bus. + * @back: Backend device + * @size: Size in bits + * + * Some frontend devices can dynamically control the word/data size on the + * interface/data bus. Hence, the backend device needs to be aware of it so + * data can be correctly transferred. + * + * Return: + * 0 on success, negative error number on failure. + */ +int iio_backend_data_size_set(struct iio_backend *back, unsigned int size) +{ + if (!size) + return -EINVAL; + + return iio_backend_op_call(back, data_size_set, size); +} +EXPORT_SYMBOL_NS_GPL(iio_backend_data_size_set, "IIO_BACKEND"); + +/** * iio_backend_extend_chan_spec - Extend an IIO channel * @back: Backend device * @chan: IIO channel |