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authorArtur Rojek2019-03-23 18:28:06 +0100
committerJonathan Cameron2019-04-14 11:11:00 +0100
commit9f421096a16e75d22e69f766206f1bb0dc8fcf90 (patch)
treeb9cd33e7f4491e2a5e661b1023dbeb0d180949af /include/linux/iio
parent1c163f4c7b3f621efff9b28a47abb36f7378d783 (diff)
iio: inkern: API for reading available iio channel attribute values
Extend the inkern API with a function for reading available attribute values of iio channels. Signed-off-by: Artur Rojek <contact@artur-rojek.eu> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'include/linux/iio')
-rw-r--r--include/linux/iio/consumer.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index 9887f4f8e2a8..b2d34831ed7c 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -291,6 +291,20 @@ int iio_read_avail_channel_raw(struct iio_channel *chan,
const int **vals, int *length);
/**
+ * iio_read_avail_channel_attribute() - read available channel attribute values
+ * @chan: The channel being queried.
+ * @vals: Available values read back.
+ * @type: Type of values read back.
+ * @length: Number of entries in vals.
+ * @attribute: info attribute to be read back.
+ *
+ * Returns an error code, IIO_AVAIL_RANGE or IIO_AVAIL_LIST.
+ */
+int iio_read_avail_channel_attribute(struct iio_channel *chan,
+ const int **vals, int *type, int *length,
+ enum iio_chan_info_enum attribute);
+
+/**
* iio_get_channel_type() - get the type of a channel
* @channel: The channel being queried.
* @type: The type of the channel.