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Watchdog (watchdog)

Watchdog timer.

Device Type​

DEVICE_TYPE_WATCHDOG

Structure​

struct watchdog_t {
    char * name;
    int (*set)(struct watchdog_t * watchdog, int timeout);
    int (*get)(struct watchdog_t * watchdog);
    void * priv;
};

Key API​

FunctionDescription
search_watchdog(name)Find watchdog by name
register_watchdog(wdt, drv)Register a watchdog
unregister_watchdog(wdt)Unregister a watchdog
watchdog_set_timeout(wdt, timeout)Set timeout (seconds)
watchdog_get_timeout(wdt)Get remaining time

Description​

Hardware watchdog timer interface. Timeout value is configurable; setting to 0 stops the watchdog. Used in safety-critical and unattended systems.