1.\" Copyright (c) 1999 2.\" Nick Hibma <n_hibma@FreeBSD.org>. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.Dd April 24, 2018 26.Dt UHCI 4 27.Os 28.Sh NAME 29.Nm uhci 30.Nd UHCI USB Host Controller driver 31.Sh SYNOPSIS 32.Cd "device uhci" 33.Sh DESCRIPTION 34The 35.Nm 36driver provides support for UHCI-type PCI based USB controllers. 37.Sh HARDWARE 38The 39.Nm 40driver supports all UHCI v1.1 compliant controllers including: 41.Pp 42.Bl -bullet -compact 43.It 44Intel 82371AB/EB (PIIX4) 45.It 46Intel 82371SB (PIIX3) 47.It 48VIA 83C572 49.El 50.Sh SYSCTL VARIABLES 51The following variables are available as both 52.Xr sysctl 8 53variables and 54.Xr loader 8 55tunables: 56.Bl -tag -width indent 57.It Va hw.usb.uhci.debug 58Debug output level, where 0 is debugging disabled and larger values increase 59debug message verbosity. 60Default is 0. 61.El 62.Sh SEE ALSO 63.Xr ehci 4 , 64.Xr ohci 4 , 65.Xr xhci 4 66.Sh HISTORY 67The 68.Nm 69device driver first appeared in 70.Fx 3.0 . 71.Sh AUTHORS 72The 73.Nm 74driver was written by 75.An Lennart Augustsson Aq Mt augustss@carlstedt.se 76for the 77.Nx 78project. 79