diff options
| author | Andreas Klinger <ak@it-klinger.de> | 2021-08-04 17:46:42 +0200 |
|---|---|---|
| committer | Jonathan Cameron <Jonathan.Cameron@huawei.com> | 2021-08-08 15:19:18 +0100 |
| commit | 1081b9d97152e6aa28a1868ec8e0587b2b8fb2ae (patch) | |
| tree | 43181741dd557845ea60bf7c49d89047ec4b26f2 /drivers/iio/chemical/Kconfig | |
| parent | 3722c105ecd1129bba593a9599b8c513c0129536 (diff) | |
iio: chemical: Add driver support for sgp40
sgp40 is a gas sensor used for measuring the air quality.
This driver is reading the raw resistance value which can be passed to
an userspace algorithm for further calculation.
The raw value is also used to calculate an estimated absolute voc index
in the range from 0 to 500. For this purpose the raw_mean value of the
resistance for which the index value is 250 might be set up as a
calibration step. This can be done with in_resistance_calibbias.
Compensation of relative humidity and temperature is supported and can
be used by writing to output values of out_humidityrelative_raw and
out_temp_raw.
There is a predecesor sensor type (sgp30) already existing. This driver
module was not extended because the new sensor is quite different in its
i2c telegrams.
Signed-off-by: Andreas Klinger <ak@it-klinger.de>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20210804154641.GA3237@arbad
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/chemical/Kconfig')
| -rw-r--r-- | drivers/iio/chemical/Kconfig | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/iio/chemical/Kconfig b/drivers/iio/chemical/Kconfig index a4920646e9be..c03667e62732 100644 --- a/drivers/iio/chemical/Kconfig +++ b/drivers/iio/chemical/Kconfig @@ -131,6 +131,17 @@ config SENSIRION_SGP30 To compile this driver as module, choose M here: the module will be called sgp30. +config SENSIRION_SGP40 + tristate "Sensirion SGP40 gas sensor" + depends on I2C + select CRC8 + help + Say Y here to build I2C interface to support Sensirion SGP40 gas + sensor + + To compile this driver as module, choose M here: the + module will be called sgp40. + config SPS30 tristate select IIO_BUFFER |