If we do not set scan_index explicitly it will default to 0, causing
more than one channel to have the same scan_index. This does not make
sense, as scan_index is used to order values in a buffer sample.
Set the activity and voltage output channels to unbuffered
(scan_index = -1) to fix this.
Signed-off-by: Vlad Dogaru <vlad.dogaru@xxxxxxxxx>
---
drivers/staging/iio/iio_simple_dummy.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index 10a9e08..2948900 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -242,6 +242,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
.output = 1,
.indexed = 1,
.channel = 0,
+ .scan_index = -1,
},
{
.type = IIO_STEPS,
@@ -259,6 +260,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
.modified = 1,
.channel2 = IIO_MOD_RUNNING,
.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ .scan_index = -1,
#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
.event_spec = &iio_running_event,
.num_event_specs = 1,
@@ -269,6 +271,7 @@ static const struct iio_chan_spec iio_dummy_channels[] = {
.modified = 1,
.channel2 = IIO_MOD_WALKING,
.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED),
+ .scan_index = -1,
#ifdef CONFIG_IIO_SIMPLE_DUMMY_EVENTS
.event_spec = &iio_walking_event,
.num_event_specs = 1,
--
1.9.1
--
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