Sound Open Firmware 2.2.1 Released With Preparations For Intel Raptor Lake

Written by Michael Larabel in Hardware on 23 August 2022 at 05:45 AM EDT. 2 Comments
Sound Open Fimware is already four years old as what started out as Intel pushing for more open firmware around audio DSPs. Since then we've seen Mediatek begin to support "SOF" as well as some AMD hardware supporting Sound Open Firmware. Out today is SOF 2.2.1 as the latest from this open-source project under the Linux Foundation umbrella.

Sound Open Firmware continues to be backed by the likes of Intel, Google, Mediatek, NXP, AMD, Realtek, and other vendors for embracing open-source audio DSP firmware and related development tooling/infrastructure. Those unfamiliar with this great open-source project can visit to learn more.

Released back in July was Sound Open Firmware 2.2 with many improvements while out this morning is SOF 2.2.1 as a minor update.

SOF 2.2.1 backports topology updates for SoundWire for Intel's Apollo Lake and Gemini Lake platforms with the ES8336 codec and also adds Intel's Raptor Lake "RPL" platform. The Raptor Lake topology additions are there as well as the initial platform definitions for this upcoming successor to Intel 12th Gen Core "Alder Lake" processors. Aside from these changes, it's just other small work back-ported for v2.2.1.

SOF 2.2.1 can be downloaded from GitHub.
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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