diff options
Diffstat (limited to 'Documentation/watchdog')
| -rw-r--r-- | Documentation/watchdog/watchdog-parameters.txt | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/watchdog/watchdog-parameters.txt b/Documentation/watchdog/watchdog-parameters.txt index 0b88e333f9e1..32d3606caa65 100644 --- a/Documentation/watchdog/watchdog-parameters.txt +++ b/Documentation/watchdog/watchdog-parameters.txt @@ -8,6 +8,14 @@ See Documentation/admin-guide/kernel-parameters.rst for information on providing kernel parameters for builtin drivers versus loadable modules. +The watchdog core parameter watchdog.open_timeout is the maximum time, +in seconds, for which the watchdog framework will take care of pinging +a running hardware watchdog until userspace opens the corresponding +/dev/watchdogN device. A value of 0 (the default) means an infinite +timeout. Setting this to a non-zero value can be useful to ensure that +either userspace comes up properly, or the board gets reset and allows +fallback logic in the bootloader to try something else. + ------------------------------------------------- acquirewdt: |