We can not read back the value from the device, but we cache the value anyway so
we might as well return the cached value instead of an error.
Signed-off-by: Lars-Peter Clausen <lars@xxxxxxxxxx>
---
drivers/staging/iio/dac/ad5446.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c
index 731cd05..9dc67c8 100644
--- a/drivers/staging/iio/dac/ad5446.c
+++ b/drivers/staging/iio/dac/ad5446.c
@@ -229,6 +229,9 @@ static int ad5446_read_raw(struct iio_dev *indio_dev,
unsigned long scale_uv;
switch (m) {
+ case IIO_CHAN_INFO_RAW:
+ *val = st->cached_val;
+ return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
*val = scale_uv / 1000;
--
1.7.9.5
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