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watchdog: Update sysfs documentation.

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Document the sysfs attributes:
	pretimeout
	pretimeout_available_governors
	pretimeout_governor

Signed-off-by: Jerry Hoemann <jerry.hoemann@hpe.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
This commit is contained in:
Jerry Hoemann 2019-02-04 16:57:36 -07:00 committed by Wim Van Sebroeck
parent b6ce9c7394
commit d02d104ea0
1 changed files with 23 additions and 0 deletions
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Documentation/ABI/testing/sysfs-class-watchdog
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@ -49,3 +49,26 @@ Contact: Wim Van Sebroeck <wim@iguana.be>
Description:
It is a read only file. It is read to know about current
value of timeout programmed.
What: /sys/class/watchdog/watchdogn/pretimeout
Date: December 2016
Contact: Wim Van Sebroeck <wim@iguana.be>
Description:
It is a read only file. It specifies the time in seconds before
timeout when the pretimeout interrupt is delivered. Pretimeout
is an optional feature.
What: /sys/class/watchdog/watchdogn/pretimeout_avaialable_governors
Date: February 2017
Contact: Wim Van Sebroeck <wim@iguana.be>
Description:
It is a read only file. It shows the pretimeout governors
available for this watchdog.
What: /sys/class/watchdog/watchdogn/pretimeout_governor
Date: February 2017
Contact: Wim Van Sebroeck <wim@iguana.be>
Description:
It is a read/write file. When read, the currently assigned
pretimeout governor is returned. When written, it sets
the pretimeout governor.