diff --git a/share/man/man4/xhci.4 b/share/man/man4/xhci.4
index d475c5e502fc..dc34931f5002 100644
--- a/share/man/man4/xhci.4
+++ b/share/man/man4/xhci.4
@@ -1,80 +1,105 @@
 .\"
-.\" Copyright (c) 2011 Hans Petter Selasky. All rights reserved.
+.\" 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 April 24, 2018
+.Dd October 20, 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 up to 5.0Gbps when using a USB 3.0 compliant device.
+connection speeds from 5.0Gbps and above when using a 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
-Debug output level, where 0 is debugging disabled and larger values increase
-debug message verbosity.
-Default is 0.
+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 ,
+.Xr uhci 4 and
 .Xr usb 4
 .Sh HISTORY
 The
 .Nm
 device driver first appeared in
 .Fx 8.2 .