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authorJonathan Cameron <Jonathan.Cameron@huawei.com>2021-03-14 18:14:57 +0000
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2021-04-07 08:36:36 +0100
commit45b77828b01cdf2af655e4edbc63646fc7e07b48 (patch)
tree95bcd1163cadcd630fe01bb4e6bdc62130bbe1bb /drivers/iio
parentd5723c679bb81123f9c038392ba2d4aab928ba32 (diff)
downloadlwn-45b77828b01cdf2af655e4edbc63646fc7e07b48.tar.gz
lwn-45b77828b01cdf2af655e4edbc63646fc7e07b48.zip
iio:event: Add timeout event info type
For adaptive threshold events, the current value is compared with a (typically) low pass filtered version of the same signal that slowly tracks large scale changes. However, sometimes a step change can result in a large lag before the low pass filtered version begins to track the signal again. Timeouts can be used to made an instantaneous 'correction'. Documentation of this attribute is added in a later patch. Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Link: https://lore.kernel.org/r/20210314181511.531414-11-jic23@kernel.org
Diffstat (limited to 'drivers/iio')
-rw-r--r--drivers/iio/industrialio-event.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-event.c b/drivers/iio/industrialio-event.c
index 1b3a15bc75fe..d0732eac0f0a 100644
--- a/drivers/iio/industrialio-event.c
+++ b/drivers/iio/industrialio-event.c
@@ -245,6 +245,7 @@ static const char * const iio_ev_info_text[] = {
[IIO_EV_INFO_PERIOD] = "period",
[IIO_EV_INFO_HIGH_PASS_FILTER_3DB] = "high_pass_filter_3db",
[IIO_EV_INFO_LOW_PASS_FILTER_3DB] = "low_pass_filter_3db",
+ [IIO_EV_INFO_TIMEOUT] = "timeout",
};
static enum iio_event_direction iio_ev_attr_dir(struct iio_dev_attr *attr)