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Course Outline

Introduction to Android HAL

  • Overview of Android system architecture.
  • Role of the HAL in Android.
  • Evolution of HAL: From HIDL to AIDL.
  • Setting up the development environment.
  • Exploring AOSP for HAL components.

AIDL for HAL Development

  • Introduction to AIDL and its syntax.
  • Defining interfaces with AIDL.
  • Implementing AIDL-based HALs.
  • Binding services to system components.
  • Testing and debugging AIDL interfaces.

Migrating from HIDL to AIDL

  • Differences between HIDL and AIDL.
  • Benefits of migrating to AIDL.
  • Step-by-step migration process.
  • Ensuring backward compatibility.
  • Challenges and solutions.

Advanced HAL Topics

  • Audio HAL: Transition to AIDL, support for Ultra HDR and wide-gamut.
  • Camera HAL: Implementing new features in Android 14.
  • Project Mainline: Modularity and updatable HALs.
  • Exploring other HALs (Sensors, Bluetooth, etc.).

Security, Testing, and Best Practices

  • Android security measures for HAL.
  • Validating and testing HAL interfaces.
  • Best practices for HAL development.
  • Debugging tools and techniques.
  • Future trends in Android HAL development.

Summary and Next Steps

Requirements

  • Experience with C/C++ programming.
  • Experience with Java programming.
  • Knowledge of hardware and software architecture.

Audience

  • Linux system developers.
  • Android system programmers.
  • Developers seeking to enter Android system programming.
 21 Hours

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