diff options
| -rw-r--r-- | share/man/man9/watchdog.9 | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/share/man/man9/watchdog.9 b/share/man/man9/watchdog.9 index b53b0f5..20fc0d6 100644 --- a/share/man/man9/watchdog.9 +++ b/share/man/man9/watchdog.9 @@ -50,23 +50,21 @@ If .Fa cmd is zero, the watchdog must be disabled and the .Fa error -argument left untouched. +argument left untouched. If the watchdog cannot be disabled, the +.Fa error +argument must be set to +.Dv EOPNOTSUPP . .Pp Else the watchdog should be reset and configured to a timeout of .Pq 1 << Pq Fa cmd No & Dv WD_INTERVAL nanoseconds or larger and the .Fa error -argument be set to zero. +argument be set to zero to signal arming of a watchdog. .Pp If the watchdog cannot be configured to the proposed timeout, it must be disabled and the .Fa error -argument set to -.Dv EINVAL . -If the watchdog cannot be disabled, the -.Fa error -argument must be set to -.Dv EOPNOTSUPP . +argument left as is (to avoid hiding the arming of another watchdog). .Pp There is no specification of what the watchdog should do when it times out, but a hardware reset or similar |
