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.