Framework Laptop Gets ChromeOS EC Driver Support In Linux 5.19
Written by Michael Larabel in Linux Kernel on 29 May 2022 at 06:18 AM EDT. 2 Comments
LINUX KERNEL --
The Chrome platform updates for Linux 5.19 bring various fixes as well as a new ChromeOS ACPI device driver, but for the most part is relatively basic. One notable addition though is the Framework Laptop now having support by cros_ec_lpcs with that modular Linux laptop making use of Google's ChromeOS embedded controller.

The Framework Laptop is one of the few non-Chromebooks or non-ChromeOS devices making use of the ChromeOS EC. The Framework Laptop's Embedded Controller software as a result of using the Google-developed EC is open-source firmware.


With Linux 5.19 there is the DMI matching added to the cros_ec_lpcs driver so it will properly bind on the Framework Laptop. The Framework Laptop is an interesting, modular Linux laptop - check out my aforelinked review for more details on the device.

Meanwhile this set of Chrome platform updates for Linux 5.19 also adds a new ChromeOS ACPI device driver. This driver exports values reported by ACPI into a sysfs directory due to thata data not being present in conventional ACPI tables when read through common ACPI tools. ChromeOS user-space makes use of the data directly that is exposed via sysfs by this new driver.

See this pull of all the Chrome platform updates in Linux 5.19.
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Michael Larabel is the principal author of Phoronix.com 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 OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via MichaelLarabel.com.

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