Intel PMC Mux Control Driver Coming For Linux 5.7 To Change USB-C Modes
Written by Michael Larabel in Intel on 5 March 2020 at 10:22 AM EST. Add A Comment
INTEL --
One of the new Intel drivers up for testing that is currently in the USB-next for the forthcoming Linux 5.7 kernel cycle is the Intel PMC Mux Control driver.

The intel_pmc_mux Linux driver is for Intel's latest hardware platforms in being able to change the mode/roles of USB-C ports. The PMC (Power Management Controller) micro-controller with this mux-agent is predominantly found on newer Intel SoCs.

This driver interfaces with the PMC micro-controller firmware in order to alter the configuration of the USB (de)multiplexer state for entering/exiting the USB data role to enter USB Type-C alternate modes, DisplayPort, or Thunderbolt 3 functionality. Thus for those with the latest and greatest Intel hardware and looking to switch use these alternate modes, this driver is important.

This new driver is within USB-next should you need the driver today.
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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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