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.