diff options
| author | Wim Van Sebroeck <wim@iguana.be> | 2011-07-22 18:59:49 +0000 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2011-07-28 08:01:16 +0000 |
| commit | 78d88fc01202b088573c962e2885556a5e99bf74 (patch) | |
| tree | 8f5650e80988752d144c4575ae4d2b4e846e2aa5 /include | |
| parent | 7e192b9c4234d29bdc20ac8d0a67edf7624b4206 (diff) | |
watchdog: WatchDog Timer Driver Core - Add ioctl call
Add support for extra ioctl calls by adding a
ioctl watchdog operation. This operation will be
called before we do our own handling of ioctl
commands. This way we can override the internal
ioctl command handling and we can also add
extra ioctl commands. The ioctl watchdog operation
should return the appropriate error codes or
-ENOIOCTLCMD if the ioctl command should be handled
through the internal ioctl handling of the 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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/watchdog.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h index f719883c5141..325d90b6641b 100644 --- a/include/linux/watchdog.h +++ b/include/linux/watchdog.h @@ -70,6 +70,7 @@ struct 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. + * @ioctl: The routines that handles extra ioctl calls. * * The watchdog_ops structure contains a list of low-level operations * that control a watchdog device. It also contains the module that owns @@ -85,6 +86,7 @@ struct watchdog_ops { int (*ping)(struct watchdog_device *); unsigned int (*status)(struct watchdog_device *); int (*set_timeout)(struct watchdog_device *, unsigned int); + long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long); }; /** struct watchdog_device - The structure that defines a watchdog device |