Formation Yocto Plus / Yocto Avancé

Updating an existing Yocto BSP (adding a sensor support)

Creating a new device based on a standard one (Raspberry Pi)

Adding an “update” service with SWUpdate

BSP section

Use case on adding a sensor (MCP 9808, I2C bus)

Updating the kernel «device tree»

Configuring the kernel

Creating and integrating a kernel patch with «devtool»

Extending the Raspberry Pi device definition

Creating a configuration file for the device

Using the previous kernel (with MCP 9808 support)

Building an image for the new device

SWUpdate section

SWUpdate section

Why update a device ?

The package based approach (IPK, RPM, DEB)

Using an update framework

• SWUpdate

• RAUC

• Mender

Focusing on SWUpdate

Principles (the SWU file)

Using the internal web server

A simple example (adding files to a image)

Updating the root-filesystem

Using “rollback” (with 2 partitions)

Using an external HTTP server