FreeBSD manual
download PDF document: uhci.4.pdf
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:
o Intel 82371AB/EB (PIIX4)
o Intel 82371SB (PIIX3)
o 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 14.0-RELEASE-p6 April 24, 2018 FreeBSD 14.0-RELEASE-p6