a2d60916d0
Noted by: Gary Jennejohn <garyj@gmx.de> MFC after: 1 week Sponsored by: NVIDIA Networking
106 lines
3.2 KiB
Groff
106 lines
3.2 KiB
Groff
.\"
|
|
.\" Copyright (c) 2011-2022 Hans Petter Selasky. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd October 21, 2022
|
|
.Dt XHCI 4
|
|
.Os
|
|
.Sh NAME
|
|
.Nm xhci
|
|
.Nd USB eXtensible Host Controller driver
|
|
.Sh SYNOPSIS
|
|
.Cd "options USB_DEBUG"
|
|
.Cd "device xhci"
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
driver provides support for the
|
|
.Tn USB
|
|
eXtensible Host Controller Interface,
|
|
which allows use of
|
|
.Tn USB
|
|
1.0, 2.0 and 3.0 devices on the same
|
|
.Tn USB
|
|
port.
|
|
.Pp
|
|
The
|
|
.Tn XHCI
|
|
controller supports
|
|
.Tn USB
|
|
connection speeds from 5.0Gbps and above when using USB 3.x
|
|
compliant devices.
|
|
.Sh HARDWARE
|
|
The
|
|
.Nm
|
|
driver supports
|
|
.Tn XHCI
|
|
compatible controllers having PCI class 12 (serial bus),
|
|
subclass 3 (USB) and programming interface 48 (XHCI).
|
|
.Sh SYSCTL VARIABLES
|
|
The following variables are available as both
|
|
.Xr sysctl 8
|
|
variables and
|
|
.Xr loader 8
|
|
tunables:
|
|
.Bl -tag -width indent
|
|
.It Va hw.usb.xhci.debug
|
|
Set debug output level, where 0 is debugging disabled and larger
|
|
values increase debug message verbosity.
|
|
The default value is 0.
|
|
.It Va hw.usb.xhci.dcepquirk
|
|
Set to enable quirk for deconfiguration of endpoints.
|
|
The default value is 0.
|
|
.It Va hw.usb.xhci.ctlquirk
|
|
Set to submit full USB control request as one job, up to 64kBytes.
|
|
Else the USB control request will be split into multiple smaller
|
|
requests.
|
|
The default value is 1.
|
|
.It Va hw.usb.xhci.streams
|
|
Set to enable USB streams support.
|
|
The default value is 0.
|
|
.It Va hw.usb.xhci.route
|
|
Set bitmap for switching EHCI ports to the XHCI controller.
|
|
The default value is 0.
|
|
.It Va hw.usb.xhci.polling
|
|
Set to use a timer to poll the interrupt handler.
|
|
The default value is 0.
|
|
.It Va hw.usb.xhci.dma32
|
|
Set to only use 32-bit DMA for the XHCI controller.
|
|
The default value is 0.
|
|
.It Va hw.usb.xhci.ctlstep
|
|
Set to enable control endpoint status state stepping.
|
|
The default value is 0.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr ehci 4 ,
|
|
.Xr ohci 4 ,
|
|
.Xr uhci 4 and
|
|
.Xr usb 4
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
device driver first appeared in
|
|
.Fx 8.2 .
|