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authorDale Farnsworth2007-07-24 20:16:29 +0200
committerWim Van Sebroeck2007-07-24 23:16:15 +0200
commit85d57238d2ff9d95892dd1f266b85d2359d48dcc (patch)
treec1141dfe2a22d3b354296acca2ed201b4543955e /drivers/char/watchdog/mv64x60_wdt.c
parent[WATCHDOG] mv64x60_wdt: Support for WDIOC_SETTIMEOUT ioctl (diff)
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[WATCHDOG] mv64x60_wdt: Add WDIOC_SETOPTIONS ioctl support
Allow the watchdog timer to be enabled or disabled via the WDIOC_SETOPTIONS ioctl. Signed-off-by: Dale Farnsworth <dale@farnsworth.org> Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/char/watchdog/mv64x60_wdt.c')
-rw-r--r--drivers/char/watchdog/mv64x60_wdt.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/char/watchdog/mv64x60_wdt.c b/drivers/char/watchdog/mv64x60_wdt.c
index e990e3af8be4..7b4812776382 100644
--- a/drivers/char/watchdog/mv64x60_wdt.c
+++ b/drivers/char/watchdog/mv64x60_wdt.c
@@ -132,6 +132,7 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
unsigned int cmd, unsigned long arg)
{
int timeout;
+ int options;
void __user *argp = (void __user *)arg;
static struct watchdog_info info = {
.options = WDIOF_SETTIMEOUT |
@@ -157,7 +158,15 @@ static int mv64x60_wdt_ioctl(struct inode *inode, struct file *file,
return -EOPNOTSUPP;
case WDIOC_SETOPTIONS:
- return -EOPNOTSUPP;
+ if (get_user(options, (int __user *)argp))
+ return -EFAULT;
+
+ if (options & WDIOS_DISABLECARD)
+ mv64x60_wdt_handler_disable();
+
+ if (options & WDIOS_ENABLECARD)
+ mv64x60_wdt_handler_enable();
+ break;
case WDIOC_KEEPALIVE:
mv64x60_wdt_service();