Open Source Summit North America 2025

This presentation showcases optimizing sensor data acquisition for embedded systems using the Linux IIO subsystem and libiio, with a special focus on developing algorithms on the host to capture data from remote hardware. The IIO subsystem offers a versatile framework for interfacing with sensors like ADCs, DACs, and IMUs, streamlining the management of diverse data streams. With libiio, developers can capture data from remote devices efficiently, simplifying integration and allowing for sophisticated data processing in user-space applications. We explore the architecture of the IIO subsystem, highlighting its modular design that enhances scalability and adaptability in embedded settings. The paper also covers practical methods for configuring and optimizing IIO drivers to improve performance and reliability. Real-world examples with Raspberry Pi demonstrate how libiio supports the rapid prototyping and deployment of sensor applications, with an emphasis on developing algorithms on the host. Attendees will learn best practices for creating high-performance data acquisition systems that ensure seamless integration and efficient resource use across distributed systems.