Open Source Summit India 2026

Modern embedded audio devices increasingly run mainline Linux, but achieving deterministic low-latency multi-channel audio processing remains a challenge. While heterogeneous SoCs include DSP accelerators capable of handling signal processing workloads efficiently, integrating these accelerators into a standard Linux audio stack without proprietary middleware is non-trivial.
This talk presents a practical, upstream-friendly approach to building a zero-copy DSP offload framework using mainline Linux components such as remoteproc, rpmsg, and ALSA. Instead of relying on custom kernel patches or vendor-specific frameworks, the solution leverages DMA-backed shared memory and rpmsg-based signaling to enable efficient inter-processor communication between ARM application cores and a DSP.
A key focus of this session is eliminating redundant memory copies across kernel and user space boundaries. By designing a ping-pong buffer architecture with shared memory mapping and pointer-based synchronization, we achieved deterministic real-time streaming with significantly reduced CPU utilization and improved latency characteristics.

Practical guide to writing Devicetree sources (DTS) and bindings for the Linux kernel. Jump in if you want to know:
1. What compatibility means between devices and how to express it in DTS.
2. What can be in DTS and what cannot.
3. Fastest way to upstream your DTS (no need for 10 iterations!).
4. Validate your DTS and live error-free ever after.

The talk will focus on Devicetree (DTS and bindings) in the context of Linux kernel, which is also applicable to several other projects like U-boot.

Connected medical devices (IoMT) increasingly depend on Yocto‑based Embedded Linux platforms to perform critical, patient‑impacting functions. As cyberattacks on healthcare rise, securing these devices is now central to patient safety, regulatory compliance, and lifecycle quality. This session provides a practical, defense‑in‑depth blueprint for hardening IoMT devices—starting from secure boot and measured trust to OS‑level hardening, system integrity, secure OTA updates, sandboxing, runtime protection, and zero‑trust device‑to‑cloud communication.
We will map real‑world cyber trends to specific embedded mitigations and align them with global regulatory expectations for medical devices. The session also demonstrates how open‑source tools within the Yocto ecosystem can enforce reproducible security controls, generate SBOMs, and support automated vulnerability triage throughout the device lifecycle.
Attendees will gain engineering‑ready patterns to build secure, maintainable Linux‑based devices—applicable not only in healthcare, but also industrial IoT, automotive, and safety‑critical embedded domains.