Early last month, to promote the adoption of USB technology USB-IF organization announced the official launch of USB4 ™ specification, USB4 is a major update of USB, Intel licensed the use of the Thunderbolt 3 protocol, speed has been significantly improved, the new version of USB 3.2 bandwidth twice, while extending the USB Type-C performance.
On Tuesday, Intel open source engineers submitted 22 USB4 patch the Linux kernel mailing list, if adopted, these patches will provide basic support USB4 Linux kernel.
For example, this description to a patch on the map: "Now that we can perform the same operation in almost firmware software Connection Manager, the default is not necessary to start it the case of the contrary, we can continue to use the Connection Manager software.."
These initial support includes Linux kernel tunnel PCIe, DisplayPort tunnel, USB 3.x tunnel, P2P network and firmware upgrades, but there is no USB4 power management support, which is one of the main projects to be completed in the short term. Preliminary estimates within a few months will see USB4 support on Linux Kernel 5.5.
Here you can view the Intel patches: