| ## Camera Provider HAL ## |
| --- |
| |
| ## Overview: ## |
| |
| The camera.provider HAL is used by the Android camera service to discover, |
| query, and open individual camera devices. |
| |
| It also allows for direct control of the flash unit of camera devices that have |
| one, for turning on/off torch mode. |
| |
| More complete information about the Android camera HAL and subsystem can be found at |
| [source.android.com](http://source.android.com/devices/camera/index.html). |
| |
| ## Version history: ## |
| |
| ## types.hal: ## |
| |
| ### @0.0: |
| |
| Common enum and struct definitions for all camera HAL interfaces. Does not |
| define any interfaces of its own. |
| |
| ## ICameraProvider.hal: ## |
| |
| ### @2.4: |
| |
| First HIDL version of the camera provider HAL, closely matching the feature set |
| and operation of the pre-HIDL camera HAL module v2.4. |
| |
| ## ICameraProviderCallback.hal: ## |
| |
| ### @2.4: |
| |
| First HIDL version of the camara provider HAL callback interface, closely |
| matching the feature set and operation of the pre-HIDL camera HAL module |
| callbacks v2.4. |
| |
| ### AIDL Camera HAL Default Implementation ### |
| |
| The default implementation can be found at |
| $ANDROID_BUILD_TOP/hardware/google/camera/common/hal/aidl_service and |
| $ANDROID_BUILD_TOP/hardware/google/camera/devices/EmulatedCamera |
