watchdog: WatchDog Timer Driver Core - Add WDIOC_SETTIMEOUT and WDIOC_GETTIMEOUT ioctl
This part add's the WDIOC_SETTIMEOUT and WDIOC_GETTIMEOUT ioctl
functionality 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>
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index db46fe8..9f33efe 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -69,6 +69,7 @@
* @stop: The routine for stopping the watchdog device.
* @ping: The routine that sends a keepalive ping to the watchdog device.
* @status: The routine that shows the status of the watchdog device.
+ * @set_timeout:The routine for setting the watchdog devices timeout value.
*
* The watchdog_ops structure contains a list of low-level operations
* that control a watchdog device. It also contains the module that owns
@@ -83,6 +84,7 @@
/* optional operations */
int (*ping)(struct watchdog_device *);
unsigned int (*status)(struct watchdog_device *);
+ int (*set_timeout)(struct watchdog_device *, unsigned int);
};
/** struct watchdog_device - The structure that defines a watchdog device
@@ -90,6 +92,7 @@
* @info: Pointer to a watchdog_info structure.
* @ops: Pointer to the list of watchdog operations.
* @bootstatus: Status of the watchdog device at boot.
+ * @timeout: The watchdog devices timeout value.
* @driver-data:Pointer to the drivers private data.
* @status: Field that contains the devices internal status bits.
*
@@ -103,6 +106,7 @@
const struct watchdog_info *info;
const struct watchdog_ops *ops;
unsigned int bootstatus;
+ unsigned int timeout;
void *driver_data;
unsigned long status;
/* Bit numbers for status flags */