en Copyright 2015 Java http://kernelsources.org:8080/source/history/freebsd/sys/modules/usb/udbc/Makefile#d566b6a70bcbc329e8c690464043401fa8bdd49f udbc: Add usb debug host mode driverxhci offers a debugging interface which uses a special usb 3 cable with the D+,D- and VBUS pairs disconnected. This interface allows a target device toconfigure its xhci controller as a debugging channel which can then be used toprovide a serial link between the target and a debug host.This change extracts the udbc host mode driver from hrs@'s xhci debugimplementation.Reviewed by: bcr (man page)MFC after: Before 15-ALPHA3 buildsSponsored by: The FreeBSD FoundationDifferential Revision: https://reviews.freebsd.org/D51299 List of files: /freebsd/sys/modules/usb/udbc/Makefile Tue, 08 Jul 2025 10:04:00 +0200 Tom Jones <thj@FreeBSD.org>