diff options
| author | Vianney le Clément de Saint-Marcq <vianney.leclement@essensium.com> | 2015-03-30 10:34:58 +0200 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2015-04-09 15:03:05 +0100 |
| commit | c8a8585431efba0faaf41167f8f7c27c48307ca6 (patch) | |
| tree | f2813a14517319b9c27851b2e8ffcf168ae2d3cd /include/linux | |
| parent | a25691c1f9674090fb66586cf4c5d60d3efdf339 (diff) | |
iio: core: Introduce IIO_CHAN_INFO_CALIBEMISSIVITY
Contact-less IR temperature sensors measure the temperature of an object
by using its thermal radiation. Surfaces with different emissivity
ratios emit different amounts of energy at the same temperature.
IIO_CHAN_INFO_CALIBEMISSIVITY allows the user to inform the sensor of the
emissivity of the object in front of it, in order to effectively measure
its temperature.
A device providing such setting is Melexis's MLX90614:
http://melexis.com/Assets/IR-sensor-thermometer-MLX90614-Datasheet-5152.aspx.
Signed-off-by: Vianney le Clément de Saint-Marcq <vianney.leclement@essensium.com>
Cc: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/iio/iio.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/iio/iio.h b/include/linux/iio/iio.h index d86b753e9b30..b1e46ae89aa7 100644 --- a/include/linux/iio/iio.h +++ b/include/linux/iio/iio.h @@ -43,6 +43,7 @@ enum iio_chan_info_enum { IIO_CHAN_INFO_CALIBWEIGHT, IIO_CHAN_INFO_DEBOUNCE_COUNT, IIO_CHAN_INFO_DEBOUNCE_TIME, + IIO_CHAN_INFO_CALIBEMISSIVITY, }; enum iio_shared_by { |