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iio:adc:ad799x: Return more meaningful event enabled state

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only report an event as enabled if it actually is enabled

Signed-off-by: Peter Meerwald <[email protected]>
Acked-by: Lars-Peter Clausen <[email protected]>
Signed-off-by: Jonathan Cameron <[email protected]>
This commit is contained in:
Peter Meerwald 2014-12-06 05:54:00 +00:00 • committed by Jonathan Cameron
commit 1d15330a39
1 changed files with 9 additions and 1 deletions
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10
drivers/iio/adc/ad799x.c
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@ -364,7 +364,15 @@ static int ad799x_read_event_config(struct iio_dev *indio_dev,
enum iio_event_type type,
enum iio_event_direction dir)
{
return 1;
struct ad799x_state *st = iio_priv(indio_dev);
if (!(st->config & AD7998_ALERT_EN))
return 0;
if ((st->config >> AD799X_CHANNEL_SHIFT) & BIT(chan->scan_index))
return 1;
return 0;
}
static unsigned int ad799x_threshold_reg(const struct iio_chan_spec *chan,