> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.nvidia.com/holoscan/sensor-bridge/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.nvidia.com/holoscan/sensor-bridge/_mcp/server.

# hololink::emulation::STM32I2CControllerCtxt

> STM32-specific I2CControllerCtxt extension.

STM32-specific [I2CControllerCtxt](i2ccontrollerctxt) extension.

`base` (the common [I2CControllerCtxt](i2ccontrollerctxt)) is the first member; STM32-only state is the HAL handle.

```cpp showLineNumbers={false}
#include <hololink/emulation/i2c.hpp>
```

***

## Member variables

| Name   | Type                | Description |
| ------ | ------------------- | ----------- |
| `base` | `I2CControllerCtxt` |             |
| `hi2c` | `I2C_HandleTypeDef` |             |