On Tue, Nov 25, 2014 at 2:48 PM, Vlad Dogaru <vlad.dogaru@xxxxxxxxx> wrote:
> 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>
Reviewed-by: Daniel Baluta <daniel.baluta@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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