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April 16-18, 2024
Seattle, Washington
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Note: The schedule is subject to change.

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Wednesday, April 17 • 9:00am - 9:40am
Introduction to DAPM, Linux Power Management for Embedded Audio Devices - Luca Ceresoli, Bootlin

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DAPM (Digital Audio Power Management) is the part of ASoC (Alsa for System-on-Chips) that dynamically turns on and off power to various parts of the audio hardware in embedded Linux systems. DAPM is very useful, but not very well known. After introducing the motivations for DAPM and how it models the hardware, Luca will describe how DAPM works, how to use DAPM in a driver and present some user space tools to understand how DAPM works at runtime. He will also mention some improvements to the DAPM tooling and documentation.
Speakers
avatar for Luca Ceresoli

Luca Ceresoli

Mr, Bootlin
As an embedded Linux and kernel engineer at Bootlin, Luca is working on various kernel device drivers and other areas of the Linux ecosystem to support several customers. He contributed several improvements the Linux kernel and other open-source projects. During his career he has... Read More →

ceresoli dapm pdf
Wednesday April 17, 2024 9:00am - 9:40am PDT
333-334 (Level 3)
  Embedded Linux Conference