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Diffstat (limited to 'include/linux/iio/consumer.h')
-rw-r--r--include/linux/iio/consumer.h12
1 files changed, 11 insertions, 1 deletions
diff --git a/include/linux/iio/consumer.h b/include/linux/iio/consumer.h
index 651f9a0e2765..26fb8f6342bb 100644
--- a/include/linux/iio/consumer.h
+++ b/include/linux/iio/consumer.h
@@ -151,6 +151,16 @@ int iio_read_channel_average_raw(struct iio_channel *chan, int *val);
int iio_read_channel_processed(struct iio_channel *chan, int *val);
/**
+ * iio_write_channel_raw() - write to a given channel
+ * @chan: The channel being queried.
+ * @val: Value being written.
+ *
+ * Note raw writes to iio channels are in dac counts and hence
+ * scale will need to be applied if standard units required.
+ */
+int iio_write_channel_raw(struct iio_channel *chan, int val);
+
+/**
* iio_get_channel_type() - get the type of a channel
* @channel: The channel being queried.
* @type: The type of the channel.
@@ -191,7 +201,7 @@ int iio_read_channel_scale(struct iio_channel *chan, int *val,
* The scale factor allows to increase the precession of the returned value. For
* a scale factor of 1 the function will return the result in the normal IIO
* unit for the channel type. E.g. millivolt for voltage channels, if you want
- * nanovolts instead pass 1000 as the scale factor.
+ * nanovolts instead pass 1000000 as the scale factor.
*/
int iio_convert_raw_to_processed(struct iio_channel *chan, int raw,
int *processed, unsigned int scale);