#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/cdev.h>
#include <uapi/linux/watchdog.h>

Macros
#define	WDOG_ACTIVE 0 /* Is the watchdog running/active */

#define	WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */

#define	WDOG_ALLOW_RELEASE 2 /* Did we receive the magic char ? */

#define	WDOG_NO_WAY_OUT 3 /* Is 'nowayout' feature set ? */

#define	WDOG_UNREGISTERED 4 /* Has the device been unregistered */

#define	WATCHDOG_NOWAYOUT 0

#define	WATCHDOG_NOWAYOUT_INIT_STATUS 0

Functions
int	watchdog_register_device (struct watchdog_device *)

void	watchdog_unregister_device (struct watchdog_device *)

Macro Definition Documentation

#define WATCHDOG_NOWAYOUT 0

Definition at line 104 of file watchdog.h.

#define WATCHDOG_NOWAYOUT_INIT_STATUS 0

Definition at line 105 of file watchdog.h.

#define WDOG_ACTIVE 0 /* Is the watchdog running/active */

Definition at line 93 of file watchdog.h.

#define WDOG_ALLOW_RELEASE 2 /* Did we receive the magic char ? */

Definition at line 95 of file watchdog.h.

#define WDOG_DEV_OPEN 1 /* Opened via /dev/watchdog ? */

Definition at line 94 of file watchdog.h.

#define WDOG_NO_WAY_OUT 3 /* Is 'nowayout' feature set ? */

Definition at line 96 of file watchdog.h.

#define WDOG_UNREGISTERED 4 /* Has the device been unregistered */

Definition at line 97 of file watchdog.h.

Function Documentation

int watchdog_register_device ( struct watchdog_device * wdd )

watchdog_register_device() - register a watchdog device : watchdog device

Register a watchdog device with the kernel so that the watchdog timer can be accessed from userspace.

A zero is returned on success and a negative errno code for failure.

Definition at line 55 of file watchdog_core.c.

void watchdog_unregister_device ( struct watchdog_device * wdd )

watchdog_unregister_device() - unregister a watchdog device : watchdog device to unregister

Unregister a watchdog device that was previously successfully registered with watchdog_register_device().

Definition at line 128 of file watchdog_core.c.