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| author | Viresh Kumar <viresh.kumar@st.com> | 2012-03-16 09:14:00 +0100 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2012-03-27 20:15:37 +0200 |
| commit | fd7b673c92731fc6c0b1e999adfd87b6762ee797 (patch) | |
| tree | 35fafd733a2846acb1dd7a06cb7078a7fe59086f /drivers/watchdog/watchdog_dev.c | |
| parent | 2ca1606359695cc7ce371c7829c4082d9095fc06 (diff) | |
| download | linux-fd7b673c92731fc6c0b1e999adfd87b6762ee797.tar.bz2 | |
watchdog: Add support for WDIOC_GETTIMELEFT IOCTL in watchdog core
This patch adds support for WDIOC_GETTIMELEFT IOCTL in watchdog core. So, there
is another function pointer added to struct watchdog_ops, which can be passed by
drivers to support this IOCTL.
Related documentation is updated too.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog/watchdog_dev.c')
| -rw-r--r-- | drivers/watchdog/watchdog_dev.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index c6e1b8dd80cc..8558da912c42 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -236,6 +236,11 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, if (wdd->timeout == 0) return -EOPNOTSUPP; return put_user(wdd->timeout, p); + case WDIOC_GETTIMELEFT: + if (!wdd->ops->get_timeleft) + return -EOPNOTSUPP; + + return put_user(wdd->ops->get_timeleft(wdd), p); default: return -ENOTTY; } |