Guide to Writing UDDF Drivers

This guide covers the UDDF driver model, driver interfaces and lifecycle, practical development guidance, and how to use HSL for hardware access.

Contents

• UDDF Driver Model
  • Device Driver Interface (DDI)
  • Driver Lifecycle
  • Camera Driver Interface (CDI)
  • HSL and the Build System
  • Discovery
• CAM123 Driver Template
  • ICam123Control.hpp
  • Cam123Driver.cpp
  • cam123_hsl.py
  • Makefile
• Discovery and Enumeration
  • The Entry Point
  • DriverInfo
  • IDriverEnumerator
  • Multi-Driver Libraries
• Using HSL in UDDF
  • HSL Overview
  • Static HSL
  • Dynamic HSL
  • Memory I/O
  • Combining Dynamic and Static HSL
  • GPIO Operations
  • Debugging HSL Sequences
  • HSL Header Generation (drvhsl)
  • HSL Makefile Integration
• GMSL
  • GMSL Overview
  • Deserializer Drivers
  • Camera Module Drivers
  • Module Sub-Components
  • Power Drivers
  • Serdes Initialization Sequence
  • I2C Addressing
• GMSL Building Blocks (UBB)
  • When to Use UBB
  • What UBB Provides
  • Architecture
  • Lifecycle Hooks
  • Writing a Module Driver with UBB
  • SerializerUbb Details
  • Extending UBB