New evdev Handles Multi-Touch, Smooth Scrolling
Written by Michael Larabel in X.Org on 8 March 2012 at 12:54 PM EST. 3 Comments
Following the release of X.Org Server 1.12 earlier in the week, the evdev input driver has been updated and released. The two big features for this common input X.Org driver is to take advantage of multi-touch and smooth scrolling, which is now supported by the latest X Input extension updates.

Peter Hutterer on Wednesday officially released xf86-input-evdev 2.7.0 as the latest evdev driver release. Smooth scrolling for X.Org came around this past summer and was then pushed into X Input 2.1, which then made it into X.Org Server 1.12 along with the further X Input 2.2 update. The Synaptics driver quickly took advantage of smooth scrolling and now there's the evdev support too in a released/stable version.

The other noteworthy item for xf86-input-evdev 2.7.0 is then, of course, multi-touch with X Input 2.2 when using supported multi-touch hardware. Using multi-touch with this generic input X.Org driver additionally requires mtdev. The mtdev library is the Multi-touch Protocol Translation Library, which translates the kernel input event stream into a simplified form that's more friendly for applications. The mtdev library can also handle finger tracking and some other capabilities.

The release announcement for xf86-input-evdev 2.7.0 with a list of changes since the earlier 2.6 release can be found on the X.Org mailing list.
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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 10,000 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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