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| author | Etienne Le Grand <etn@google.com> | 2013-04-23 14:22:23 -0700 |
|---|---|---|
| committer | Etienne Le Grand <etn@google.com> | 2013-04-23 14:32:22 -0700 |
| commit | 7a813e844252612cd8f7fa4e391825477d8b63d0 (patch) | |
| tree | 6475b37d3056120aa503b0b66dfa34c9d6b80bdd /include/hardware/sensors.h | |
| parent | 29156e437858087c393c21e0502a1652fb77dd13 (diff) | |
| download | hardware_libhardware-7a813e844252612cd8f7fa4e391825477d8b63d0.zip hardware_libhardware-7a813e844252612cd8f7fa4e391825477d8b63d0.tar.gz hardware_libhardware-7a813e844252612cd8f7fa4e391825477d8b63d0.tar.bz2 | |
Modify sign of bias in uncalibrated magnetometer
bug 8632692
Change-Id: If92f0030e53d41a7d0bc3c3b003f5eb939123945
Diffstat (limited to 'include/hardware/sensors.h')
| -rw-r--r-- | include/hardware/sensors.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/include/hardware/sensors.h b/include/hardware/sensors.h index 2a0063b..7778e8f 100644 --- a/include/hardware/sensors.h +++ b/include/hardware/sensors.h @@ -442,10 +442,10 @@ enum { * These values should be continuous (no re-calibration should cause a jump). * - 3 fields for hard iron bias estimates: x_bias, y_bias, z_bias. * Each field is a component of the estimated hard iron calibration. - * They represent the offsets to apply to the uncalibrated readings to obtain - * calibrated readings (x_calibrated = x_uncalib + x_bias) + * They represent the offsets to apply to the calibrated readings to obtain + * uncalibrated readings (x_uncalib ~= x_calibrated + x_bias) * These values are expected to jump as soon as the estimate of the hard iron - * changes. + * changes, and they should be stable the rest of the time. * * If this sensor is present, then the corresponding * SENSOR_TYPE_MAGNETIC_FIELD must be present and both must return the |