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| author | Hartmut Knaack <knaack.h@gmx.de> | 2014-10-31 01:22:00 +0000 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2014-11-05 15:58:35 +0000 |
| commit | 81ebe850a019ccb8bf0a429fb463d9bfc15ec298 (patch) | |
| tree | 7235e3aa02eebe7c6289f8b89c1e1c8d2cff16dd /Documentation/ABI/testing/sysfs-bus-iio | |
| parent | c1b501564c98a94b48f4ed936737403108dc7300 (diff) | |
| download | op-kernel-dev-81ebe850a019ccb8bf0a429fb463d9bfc15ec298.zip op-kernel-dev-81ebe850a019ccb8bf0a429fb463d9bfc15ec298.tar.gz | |
iio:pressure:bmp280: fix pressure calculation
According to the datasheet and as defined in struct bmp280_comp_press, dig_p1 is
of type u16, while dig_p2 to dig_p9 are of type s16. In
bmp280_read_compensation_press(), values read from the device were treated as
the wrong type.
In bmp280_read_press() the fractional part of the measured pressure is
calculated wrong. A better way is to use *val for the raw pressure and *val2 for
the quotient and let the core do the proper conversion using IIO_VAL_FRACTIONAL.
Signed-off-by: Hartmut Knaack <knaack.h@gmx.de>
Acked-by: Vlad Dogaru <vlad.dogaru@intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'Documentation/ABI/testing/sysfs-bus-iio')
0 files changed, 0 insertions, 0 deletions
