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iio: ph: add IIO_PH channel type

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Signed-off-by: Matt Ranostay <mranostay@gmail.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Matt Ranostay 2016-01-26 18:34:30 -08:00 committed by Jonathan Cameron
parent 5f9c95d851
commit ecb3a7ccc6
3 changed files with 9 additions and 0 deletions
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7
Documentation/ABI/testing/sysfs-bus-iio
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@ -1493,3 +1493,10 @@ Description:
This ABI is especially applicable for humidity sensors This ABI is especially applicable for humidity sensors
to heatup the device and get rid of any condensation to heatup the device and get rid of any condensation
in some humidity environment in some humidity environment
What: /sys/bus/iio/devices/iio:deviceX/in_ph_raw
KernelVersion: 4.5
Contact: linux-iio@vger.kernel.org
Description:
Raw (unscaled no offset etc.) pH reading of a substance as a negative
base-10 logarithm of hydrodium ions in a litre of water.

1
drivers/iio/industrialio-core.c
View file

@ -77,6 +77,7 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_VELOCITY] = "velocity", [IIO_VELOCITY] = "velocity",
[IIO_CONCENTRATION] = "concentration", [IIO_CONCENTRATION] = "concentration",
[IIO_RESISTANCE] = "resistance", [IIO_RESISTANCE] = "resistance",
[IIO_PH] = "ph",
}; };
static const char * const iio_modifier_names[] = { static const char * const iio_modifier_names[] = {

1
include/uapi/linux/iio/types.h
View file

@ -37,6 +37,7 @@ enum iio_chan_type {
IIO_VELOCITY, IIO_VELOCITY,
IIO_CONCENTRATION, IIO_CONCENTRATION,
IIO_RESISTANCE, IIO_RESISTANCE,
IIO_PH,
}; };
enum iio_modifier { enum iio_modifier {