From mboxrd@z Thu Jan 1 00:00:00 1970 From: wenyou.yang@atmel.com (Wenyou Yang) Date: Fri, 1 Feb 2013 15:06:19 +0800 Subject: [PATCH v4 1/8] watchdog: add the function watchdog_is_open In-Reply-To: <1359702386-21284-1-git-send-email-wenyou.yang@atmel.com> References: <1359702386-21284-1-git-send-email-wenyou.yang@atmel.com> Message-ID: <1359702386-21284-2-git-send-email-wenyou.yang@atmel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Add the function watchdog_is_open to check whether or not the /dev/watchdog? is opened Signed-off-by: Wenyou Yang Cc: wim at iguana.be Cc: linux-watchdog at vger.kernel.org Cc: linux-kernel at vger.kernel.org --- include/linux/watchdog.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index e40cc2b..7ea4465 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -111,6 +111,14 @@ static inline bool watchdog_active(struct watchdog_device *wdd) return test_bit(WDOG_ACTIVE, &wdd->status); } +/* Use the following function to check whether or not + * the /dev/watchdog? is opened + */ +static inline bool watchdog_is_open(struct watchdog_device *wddev) +{ + return test_bit(WDOG_DEV_OPEN, &wddev->status); +} + /* Use the following function to set the nowayout feature */ static inline void watchdog_set_nowayout(struct watchdog_device *wdd, bool nowayout) { -- 1.7.9.5