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3 Commits

Author SHA1 Message Date
Tomasz Duszynski
722f2cca9a iio: chemical: sps30: fix attribute kernel version 
4.22 have never existed and this change was actually added to 5.0
hence fix the numbering.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2019-04-04 20:19:44 +01:00
Tomasz Duszynski
62129a0849 iio: chemical: sps30: allow changing self cleaning period 
Sensor can periodically trigger self cleaning. Period can be changed by
writing a new value to a dedicated attribute. Upon attribute read
current period gets returned.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2019-01-19 17:56:34 +00:00
Tomasz Duszynski
c546d49656 iio: chemical: sps30: add support for self cleaning 
Self cleaning is especially useful in cases where sensor undergoes
frequent power on/off cycles. In such scenarios it is recommended to
turn self cleaning at least once per week in order to maintain reliable
measurements.

Self cleaning is activated by writing 1 to a dedicated attribute.
Internal fan accelerates to its maximum speed and keeps spinning
for about 10 seconds blowing out accumulated dust.

Signed-off-by: Tomasz Duszynski <tduszyns@gmail.com>
Tested-by: Andreas Brauchli <andreas.brauchli@sensirion.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
 2019-01-05 16:10:39 +00:00