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watchdog: WatchDog Timer Driver Core - Add Magic Close feature

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Add support for the Magic Close feature to the
WatchDog Timer Driver Core framework.

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 18:58:54 +00:00
parent 014d694e5d
commit 017cf08051
3 changed files with 32 additions and 3 deletions
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include/linux/watchdog.h
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@@ -112,6 +112,7 @@ struct watchdog_device {
/* Bit numbers for status flags */
#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 ? */
};
/* Use the following functions to manipulate watchdog driver specific data */