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watchdog: WatchDog Timer Driver Core - Add nowayout feature

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Add support for the nowayout feature to the
WatchDog Timer Driver Core framework.
This feature prevents the watchdog timer from being
stopped.

Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
This commit is contained in:
Wim Van Sebroeck 2011-07-22 18:59:17 +00:00
parent 017cf08051
commit 7e192b9c42
3 changed files with 22 additions and 10 deletions
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1
include/linux/watchdog.h
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@ -113,6 +113,7 @@ struct watchdog_device {
#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 ? */
};
/* Use the following functions to manipulate watchdog driver specific data */