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author | Mathias Agopian <mathias@google.com> | 2010-09-14 10:53:55 -0700 |
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committer | Mathias Agopian <mathias@google.com> | 2010-09-14 10:53:55 -0700 |
commit | c04e5f68905127ae4c1a0c17d225db9cebe66a07 (patch) | |
tree | 833e7aa19f046a343b329bb9c7532182ca52e40e | |
parent | a2df7ab5fe89fda56606f8151659db47e160a5b3 (diff) | |
download | libhardware-c04e5f68905127ae4c1a0c17d225db9cebe66a07.tar.gz |
Added a data field for gyroscopes and improved documentation.
Change-Id: Iddc9710d8b724af9285df0396949479dccc3de7a
-rw-r--r-- | include/hardware/sensors.h | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/include/hardware/sensors.h b/include/hardware/sensors.h index 2fa6e28f..90568eb8 100644 --- a/include/hardware/sensors.h +++ b/include/hardware/sensors.h @@ -193,12 +193,14 @@ __BEGIN_DECLS * --------- * All values are in radians/second and measure the rate of rotation * around the X, Y and Z axis. The coordinate system is the same as is - * used for the acceleration sensor. Rotation is positive in the counter-clockwise - * direction. That is, an observer looking from some positive location on the x, y. - * or z axis at a device positioned on the origin would report positive rotation - * if the device appeared to be rotating counter clockwise. Note that this is the - * standard mathematical definition of positive rotation and does not agree with the - * definition of roll given earlier. + * used for the acceleration sensor. Rotation is positive in the + * counter-clockwise direction (right-hand rule). That is, an observer + * looking from some positive location on the x, y or z axis at a device + * positioned on the origin would report positive rotation if the device + * appeared to be rotating counter clockwise. Note that this is the + * standard mathematical definition of positive rotation and does not agree + * with the definition of roll given earlier. + * The range should at least be 17.45 rad/s (ie: ~1000 deg/s). * * Proximity * --------- @@ -302,6 +304,9 @@ typedef struct sensors_event_t { /* orientation values are in degrees */ sensors_vec_t orientation; + /* gyroscope values are in rad/s */ + sensors_vec_t gyro; + /* temperature is in degrees centigrade (Celsius) */ float temperature; |