From 5e06bdfb46e8b96bdde1f306d3fadff2d6a2ae77 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 25 Apr 2012 09:45:00 +0200 Subject: [PATCH] staging:iio:dac:ad5446: Return cached value for 'raw' attribute 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 Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- 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 731cd05456ab..9dc67c806016 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; -- GitLab