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auto import from //branches/cupcake/...@130745

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The Android Open Source Project
2009-02-10 15:44:04 -08:00
parent f87393cb24
commit b376203efb
5 changed files with 59 additions and 20 deletions
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30
include/hardware/sensors.h
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@@ -37,7 +37,10 @@ __BEGIN_DECLS
#define SENSORS_HARDWARE_DATA "data"
/**
* Handles must be higher than SENSORS_HANDLE_BASE
* Handles must be higher than SENSORS_HANDLE_BASE and must be unique.
* A Handle identifies a given sensors. The handle is used to activate
* and/or deactivate sensors.
* In this version of the API there can only be 256 handles.
*/
#define SENSORS_HANDLE_BASE 0
#define SENSORS_HANDLE_BITS 8
@@ -232,22 +235,37 @@ struct sensors_module_t {
struct hw_module_t common;
/**
* @return bit map of available sensors defined by
* the constants SENSORS_XXXX.
* Enumerate all available sensors. The list is returned in "list".
* @return number of sensors in the list
*/
int (*get_sensors_list)(struct sensors_module_t* module,
struct sensor_t const**);
struct sensor_t const** list);
};
struct sensor_t {
/* name of this sensors */
const char* name;
/* vendor of the hardware part */
const char* vendor;
/* version of the hardware part + driver. The value of this field is
* left to the implementation and doesn't have to be monotonicaly
* increasing.
*/
int version;
/* handle that identifies this sensors. This handle is used to activate
* and deactivate this sensor. The value of the handle must be 8 bits
* in this version of the API.
*/
int handle;
/* this sensor's type. */
int type;
/* maximaum range of this sensor's value in SI units */
float maxRange;
/* smallest difference between two values reported by this sensor */
float resolution;
/* rough estimate of this sensor's power consumption in mA */
float power;
/* reserved fields, must be zero */
void* reserved[9];
};
@@ -269,9 +287,9 @@ struct sensors_control_device_t {
*/
int (*open_data_source)(struct sensors_control_device_t *dev);
/** Activate/deactivate one or more of the sensors.
/** Activate/deactivate one sensor.
*
* @param sensors is the handle of the sensors to change.
* @param handle is the handle of the sensor to change.
* @param enabled set to 1 to enable, or 0 to disable the sensor.
*
* @return 0 on success, negative errno code otherwise