Intel engineers have developed a protocol and matching Linux driver to allow fast data movement between computers over USB4 or Thunderbolt cables without any networking setup.
Mika Westerberg, Intel's Thunderbolt maintainer, and engineer Alan Borzeszkowski created the USB4STREAM protocol along with the thunderbolt_stream driver. The system provides each host with a character device at /dev/tbstreamX that functions like a regular file for standard read and write operations.
A recent article on Hackaday delves into the mechanics of Linux hotplug events, explaining how the system handles device connections and disconnections. Author Arcanenibble outlines the roles of netlink and udev in processing these events. The piece highlights the underlying protocols that enable seamless USB device integration.
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A Hackaday article details the challenges of getting a TP-Link Archer TX50U USB WiFi dongle working on Linux, requiring manual driver modifications. The device, equipped with a Realtek RTL8832CU chipset, did not attach to any driver upon plugging in. The author successfully resolved the issue by editing USB IDs in the driver source code and rebuilding it with DKMS.