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diff --git a/share/man/man4/watchdog.4 b/share/man/man4/watchdog.4
--- a/share/man/man4/watchdog.4
+++ b/share/man/man4/watchdog.4
@@ -41,24 +41,22 @@
supports several optional
.Xr ioctl 2
calls for configuration, and
-responds to a single operational
+responds to a set of operational
.Xr ioctl 2
-call,
-.Dv WDIOCPATPAT .
-It takes a single argument which represents a timeout value specified as a
-power of two nanoseconds, or-ed with a flag selecting active or passive control
-of the watchdog.
+calls:
+.Bl -tag -width "WDIOC_CONTROL int "
+.It Dv WDIOCPATPAT
+Pat the watchdog.
+.It Dv WDIOC_CONTROL
+Enable, disable, or reset the watchdog.
+.El
.Pp
-.Dv WD_ACTIVE
-indicates that the
-.Nm
-will be kept from timing out from userland, for instance by the
-.Xr watchdogd 8
-daemon.
-.Dv WD_PASSIVE
-indicates that the
-.Nm
-will be kept from timing out from the kernel.
+The
+.Dv WDIOCPATPAT
+.Xr ioctl 2
+call takes a single argument which represents a timeout value specified as a
+.Vt sbintime_t
+of the timeout period for the watchdog.
.Pp
The
.Dv WDIOCPATPAT
@@ -77,27 +75,43 @@
implementations support the timeout length, all watchdogs are disabled and must
be explicitly re-enabled.
.Pp
-To disable the watchdogs pass
-.Dv WD_TO_NEVER .
+To disable the watchdogs use the
+.Dv WDIOC_CONTROL
+.Xr ioctl 2
+call with the
+.Dv WD_CTRL_DISABLE
+flag.
If disarming the watchdog(s) failed an error is returned.
The watchdog might
still be armed!
+To reenable the watchdogs use the
+.Dv WDIOC_CONTROL
+.Xr ioctl 2
+call with the
+.Dv WD_CTRL_ENABLE
+flag.
+Another way to pat the watchdog is with the
+.Dv WDIOC_CONTROL
+.Xr ioctl 2
+call passing the
+.Dv WDIOC_CTRL_RESET
+flag.
.Pp
The optional configuration
.Xr ioctl 2
commands are listed here, along with the type of the parameter used.
Examples of their use can be found in
.Xr watchdogd 8 .
-.Bl -tag -width "WDIOC_SETSOFTTIMEOUTACT int "
-.It Dv WDIOC_SETTIMEOUT Fa int
+.Bl -tag -width "WDIOC_GETPRETTIMEOUT sbintime_t"
+.It Dv WDIOC_SETTIMEOUT Fa sbintime_t
set/reset the timer
-.It Dv WDIOC_GETTIMEOUT Fa int
+.It Dv WDIOC_GETTIMEOUT Fa sbintime_t
get total timeout
-.It Dv WDIOC_GETTIMELEFT Fa int
+.It Dv WDIOC_GETTIMELEFT Fa sbintime_t
get time left
-.It Dv WDIOC_GETPRETIMEOUT Fa int
+.It Dv WDIOC_GETPRETIMEOUT Fa sbintime_t
get the pre-timeout
-.It Dv WDIOC_SETPRETIMEOUT Fa int
+.It Dv WDIOC_SETPRETIMEOUT Fa sbintime_t
set the pre-timeout
.It Dv WDIOC_SETPRETIMEOUTACT Fa int
Set the action when a pre-timeout occurs (see

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