diff options
Diffstat (limited to 'drivers/iio/adc/ad799x.c')
| -rw-r--r-- | drivers/iio/adc/ad799x.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/iio/adc/ad799x.c b/drivers/iio/adc/ad799x.c index abc36c896470..08bcada39487 100644 --- a/drivers/iio/adc/ad799x.c +++ b/drivers/iio/adc/ad799x.c @@ -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, |