# BaseDdk
<!--Kit: Driver Development Kit-->
<!--Subsystem: Driver-->
<!--Owner: @lixinsheng2-->
<!--Designer: @w00373942-->
<!--Tester: @dong-dongzhen-->
<!--Adviser: @w_Machine_cc-->

## Overview

Provides BASE DDK APIs for creating, mapping, unmapping, and destroying an **Ashmem** object.

**Since**: 12
## Files

| Name| Description|
| -- | -- |
| [ddk_api.h](capi-ddk-api-h.md) | Declares the BASE DDK APIs used by the USB host to access USB devices.|
| [ddk_types.h](capi-ddk-types-h.md) | Provides BASE DDK types and declares the macros, enums, and data structures required by the BASE DDK APIs.|