UHCI(4)                FreeBSD Kernel Interfaces Manual                UHCI(4)

NAME
     uhci - UHCI USB Host Controller driver

SYNOPSIS
     device uhci

DESCRIPTION
     The uhci driver provides support for UHCI-type PCI based USB controllers.

HARDWARE
     The uhci driver supports all UHCI v1.1 compliant controllers including:

     •   Intel 82371AB/EB (PIIX4)
     •   Intel 82371SB (PIIX3)
     •   VIA 83C572

SYSCTL VARIABLES
     The following variables are available as both sysctl(8) variables and
     loader(8) tunables:

     hw.usb.uhci.debug
             Debug output level, where 0 is debugging disabled and larger
             values increase debug message verbosity.  Default is 0.

SEE ALSO
     ehci(4), ohci(4), xhci(4)

HISTORY
     The uhci device driver first appeared in FreeBSD 3.0.

AUTHORS
     The uhci driver was written by Lennart Augustsson <augustss@carlstedt.se>
     for the NetBSD project.

FreeBSD 13.1-RELEASE-p6         April 24, 2018         FreeBSD 13.1-RELEASE-p6