diff --git a/share/man/man4/ehci.4 b/share/man/man4/ehci.4
index 6763d2276f9f..45e64432133f 100644
--- a/share/man/man4/ehci.4
+++ b/share/man/man4/ehci.4
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt EHCI 4
 .Os
 .Sh NAME
@@ -88,16 +88,14 @@ The default value is 0 (off).
 .It Va hw.usb.ehci.no_hs
 This tunable disables USB devices to attach like HIGH-speed ones and will force all attached devices to attach to the FULL- or LOW-speed companion controller.
 The default value is 0 (off).
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.ehci
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.ehci.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/ohci.4 b/share/man/man4/ohci.4
index 8349a1ac9645..b7df14a50825 100644
--- a/share/man/man4/ohci.4
+++ b/share/man/man4/ohci.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt OHCI 4
 .Os
 .Sh NAME
@@ -59,16 +59,14 @@ NVIDIA nForce3
 .It
 Sun PCIO-2 (RIO USB)
 .El
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.ohci
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.ohci.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/ucom.4 b/share/man/man4/ucom.4
index f96bc1263e37..e7dc77fb6243 100644
--- a/share/man/man4/ucom.4
+++ b/share/man/man4/ucom.4
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UCOM 4
 .Os
 .Sh NAME
@@ -63,20 +63,18 @@ This means that normal programs such as
 or
 .Xr ppp 8
 can be used to access the device.
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.ucom
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va pps_mode"
-.It Va debug
+.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.ucom.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
-.It Va pps_mode
+.It Va hw.usb.ucom.pps_mode
 Enables and configure PPS capture mode as described below.
 .Sh Pulse Per Second (PPS) Timing Interface
 The
diff --git a/share/man/man4/ugen.4 b/share/man/man4/ugen.4
index 0dbce4965cba..71b9d4dec41d 100644
--- a/share/man/man4/ugen.4
+++ b/share/man/man4/ugen.4
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UGEN 4
 .Os
 .Sh NAME
@@ -291,16 +291,14 @@ and
 .Va alt_index
 should be set to
 .Dv USB_CURRENT_ALT_INDEX .
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.ugen
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.ugen.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/uhci.4 b/share/man/man4/uhci.4
index 148d95d8fb2c..0dc0d94f2fd8 100644
--- a/share/man/man4/uhci.4
+++ b/share/man/man4/uhci.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UHCI 4
 .Os
 .Sh NAME
@@ -49,16 +49,14 @@ Intel 82371SB (PIIX3)
 .It
 VIA 83C572
 .El
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.uhci
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.uhci.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/uhid.4 b/share/man/man4/uhid.4
index 4ff485b2a233..9763198c2445 100644
--- a/share/man/man4/uhid.4
+++ b/share/man/man4/uhid.4
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UHID 4
 .Os
 .Sh NAME
@@ -127,16 +127,14 @@ Use
 to send data to the device.
 Data should be written in chunks of the
 size prescribed by the report descriptor.
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.uhid
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.uhid.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/ukbd.4 b/share/man/man4/ukbd.4
index 7dcce3075406..6192bcd1dbcf 100644
--- a/share/man/man4/ukbd.4
+++ b/share/man/man4/ukbd.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UKBD 4
 .Os
 .Sh NAME
@@ -136,16 +136,14 @@ or
 Do not allow the user to change the keymap.
 Note that these options also affect the AT keyboard driver,
 .Xr atkbd 4 .
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.ukbd
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.ukbd.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/ums.4 b/share/man/man4/ums.4
index 319d8e1e103b..e7c51f417ef5 100644
--- a/share/man/man4/ums.4
+++ b/share/man/man4/ums.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UMS 4
 .Os
 .Sh NAME
@@ -64,16 +64,14 @@ type device.
 See
 .Xr moused 8
 for an explanation of these mouse types.
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.ums
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.ums.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/uplcom.4 b/share/man/man4/uplcom.4
index 2ef02123e107..66f3e59d9e12 100644
--- a/share/man/man4/uplcom.4
+++ b/share/man/man4/uplcom.4
@@ -29,7 +29,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt UPLCOM 4
 .Os
 .Sh NAME
@@ -180,16 +180,14 @@ YC-Cable USB-Serial Adapter
 .It
 Zeagle N2iTion3 Diving Computer
 .El
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.uplcom
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.uplcom.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/usb.4 b/share/man/man4/usb.4
index fdb1c157afac..8ff2dac6fb23 100644
--- a/share/man/man4/usb.4
+++ b/share/man/man4/usb.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt USB 4
 .Os
 .Sh NAME
@@ -131,16 +131,14 @@ Any interface specific driver can attach to the device.
 .It
 If none is found, generic interface class drivers can attach.
 .El
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.debug
 Debug output level, where 0 is debugging disabled and larger values increase
 debug message verbosity.
 Default is 0.
diff --git a/share/man/man4/xhci.4 b/share/man/man4/xhci.4
index ce69cb097ce4..073586ae3034 100644
--- a/share/man/man4/xhci.4
+++ b/share/man/man4/xhci.4
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd August 3, 2017
+.Dd April 24, 2018
 .Dt XHCI 4
 .Os
 .Sh NAME
@@ -56,16 +56,14 @@ driver supports
 .Tn XHCI
 compatible controllers having PCI class 12 (serial bus),
 subclass 3 (USB) and programming interface 48 (XHCI).
-.Sh MIB Variables
-The
-.Nm
-driver exposes the following variables in the
-.Va hw.usb.xhci
-branch of the
-.Xr sysctl 3
-MIB:
-.Bl -tag -width ".Va debug"
-.It Va debug
+.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.