Google "Hammer" HID Driver Coming To Linux 4.17

Written by Michael Larabel in Google on 27 March 2018 at 12:00 PM EDT. 3 Comments
A new HID input driver for an apparent yet-to-be-released Google device is coming for the Linux 4.17 kernel merge window.

Being merged today in the HID subsystem tree is the new hid-google-hammer driver. This driver is for the keyboard on a "Google Hammer" device.

This Google Hammer HID driver is needed to control the keyboard backlight and "support future features."

Unfortunately the code to this ~134 line driver didn't reveal any intriguing details about this Google Hammer device, presumably a yet-to-launch Chromebook.

Anyhow, come the launch of Google Hammer there's at least the HID keyboard driver ready to roll. So far this has been the first Linux kernel patch/driver specific for this reported "Hammer" computer.
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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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