Part 5: Device Drivers
This section covers Zephyr’s device driver model and common peripheral interfaces.
What You’ll Learn
- Zephyr’s device driver architecture
- Device tree bindings for drivers
- GPIO, I2C, SPI, and UART APIs
- Writing custom device drivers
Chapters
| Chapter | Description |
|---|---|
| Driver Model | Device architecture and APIs |
| Device Tree Bindings | Connecting DTS to drivers |
| GPIO | Digital I/O and interrupts |
| I2C | I2C bus communication |
| SPI | SPI bus communication |
| UART | Serial communication |
| Custom Drivers | Writing your own drivers |
Driver Architecture
flowchart TB
APP[Application] --> API[Device API]
API --> DRIVER[Driver Implementation]
DRIVER --> DT[Device Tree Config]
DRIVER --> HW[Hardware Registers]
subgraph Subsystems
GPIO[GPIO Subsystem]
I2C[I2C Subsystem]
SPI[SPI Subsystem]
end
API --> Subsystems
Understanding the driver model is essential for working with hardware in Zephyr.