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| author | Wim Van Sebroeck <wim@iguana.be> | 2006-05-21 12:48:44 +0200 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2006-06-20 19:00:30 +0200 |
| commit | 58b519f3e5e491d5a3e320dc525f58ac439bdde4 (patch) | |
| tree | efff3a0bd308effbbedce1a50fbb40d71e5b5d96 /Documentation/watchdog | |
| parent | e05b59fe7927bc648ac3af3d59dc64a7ee6b22e2 (diff) | |
| download | kernel_samsung_smdk4412-58b519f3e5e491d5a3e320dc525f58ac439bdde4.zip kernel_samsung_smdk4412-58b519f3e5e491d5a3e320dc525f58ac439bdde4.tar.gz kernel_samsung_smdk4412-58b519f3e5e491d5a3e320dc525f58ac439bdde4.tar.bz2 | |
[WATCHDOG] add WDIOC_GETTIMELEFT ioctl
Some watchdog drivers have the ability to report the remaining time
before the system will reboot. With the WDIOC_GETTIMELEFT ioctl
you can now read the time left before the watchdog would reboot
your system.
The following drivers support this new IOCTL:
i8xx_tco.c, pcwd_pci.c and pcwd_usb.c .
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Diffstat (limited to 'Documentation/watchdog')
| -rw-r--r-- | Documentation/watchdog/watchdog-api.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/watchdog/watchdog-api.txt b/Documentation/watchdog/watchdog-api.txt index 7dc2c1c..d738ec2 100644 --- a/Documentation/watchdog/watchdog-api.txt +++ b/Documentation/watchdog/watchdog-api.txt @@ -134,6 +134,15 @@ There is also a get function for getting the pretimeout: Not all watchdog drivers will support a pretimeout. +Get the number of seconds before reboot: + +Some watchdog drivers have the ability to report the remaining time +before the system will reboot. The WDIOC_GETTIMELEFT is the ioctl +that returns the number of seconds before reboot. + + ioctl(fd, WDIOC_GETTIMELEFT, &timeleft); + printf("The timeout was is %d seconds\n", timeleft); + Environmental monitoring: All watchdog drivers are required return more information about the system, |