A Tour of USB Device Controller (UDC) in Linux - Hervé Codina, Bootlin
Why the open web links it
Explains the USB Device Controller (UDC) subsystem in Linux, covering its architecture and relevance to USB 2.0 and 3.0 devices.
Linked by 2 independent sites, 2 of them widely read in the 2026-10 crawl of the open web, including elinux.org, bootlin.com.