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[WATCHDOG] add WDIOC_GETTIMELEFT ioctl

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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 <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
This commit is contained in:
Wim Van Sebroeck 2006-05-21 12:48:44 +02:00
commit 58b519f3e5
5 changed files with 92 additions and 5 deletions
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9
Documentation/watchdog/watchdog-api.txt
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@ -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,