Intel Preparing USI Stylus Support For Linux
Written by Michael Larabel in Hardware on 27 November 2021 at 09:12 AM EST. 7 Comments
HARDWARE --
Intel open-source driver engineers have been working on USI stylus support for the Linux kernel. The Universal Stylus Initiative (USI) aims to offer interoperability of active styluses across touchscreen devices.

The Universal Stylus Initiative has a goal of allowing all styluses that comply with USI to work across devices. USI is backed by the likes of Google who wants to see USI working uniformally across Chromebooks, Dell and other hardware vendors, Intel is also involved and leading the upstream Linux support patches, and peripheral vendors like Logitech are also supporting the standard. Other big names like Wacom, Samsung, and many other players from desktop to laptops to mobile.


The USI initiative site at UniversalStylus.org has the stated goal of "A single, active stylus capable of operating with all the devices that a consumer owns or uses in their everyday life."


On Friday the newest "request for comments" patches adding USI stylus support to the Linux kernel's HID subsystem were posted for review. There were previously some USI stylus Linux patches posted that implemented support in a separate HID driver while now the approach being pursued is adding the USI handling to the core HID code.
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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 or contacted via MichaelLarabel.com.

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