From 8ff6b3bc9493089247e012a9fcba7198e194b4a5 Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Sun, 13 Sep 2015 20:26:11 -0700 Subject: iio: chemical: Add IIO_CONCENTRATION channel type There are air quality sensors that report data back in parts per million of VOC (Volatile Organic Compounds) which are usually indexed from CO2 or another common pollutant. This patchset adds an IIO_CONCENTRATION type that returns a percentage of substance because no other channels types fit this use case. Modifiers for IIO_MOD_CO2 and IIO_MOD_VOC gas types are defined. Signed-off-by: Matt Ranostay Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index 2f8b11722204..1e4c4e346ffb 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -35,6 +35,7 @@ enum iio_chan_type { IIO_ENERGY, IIO_DISTANCE, IIO_VELOCITY, + IIO_CONCENTRATION, }; enum iio_modifier { @@ -72,6 +73,8 @@ enum iio_modifier { IIO_MOD_ROOT_SUM_SQUARED_X_Y_Z, IIO_MOD_I, IIO_MOD_Q, + IIO_MOD_CO2, + IIO_MOD_VOC, }; enum iio_event_type { -- cgit v1.2.3 From d38d54692d454e4dded125677e39f53514dc4277 Mon Sep 17 00:00:00 2001 From: Matt Ranostay Date: Sun, 13 Sep 2015 20:26:12 -0700 Subject: iio: resistance: add IIO_RESISTANCE channel type Signed-off-by: Matt Ranostay Signed-off-by: Jonathan Cameron --- include/uapi/linux/iio/types.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/uapi/linux') diff --git a/include/uapi/linux/iio/types.h b/include/uapi/linux/iio/types.h index 1e4c4e346ffb..7c63bd67c36e 100644 --- a/include/uapi/linux/iio/types.h +++ b/include/uapi/linux/iio/types.h @@ -36,6 +36,7 @@ enum iio_chan_type { IIO_DISTANCE, IIO_VELOCITY, IIO_CONCENTRATION, + IIO_RESISTANCE, }; enum iio_modifier { -- cgit v1.2.3