Added a data field for gyroscopes and improved documentation.
Change-Id: Iddc9710d8b724af9285df0396949479dccc3de7a

diff --git a/include/hardware/sensors.h b/include/hardware/sensors.h
index 2fa6e28..90568eb 100644
--- a/include/hardware/sensors.h
+++ b/include/hardware/sensors.h

@@ -193,12 +193,14 @@
* ---------
* 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 @@
/* 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;