src/kernel/linux/v4.19/Documentation/ABI/testing/sysfs-class-watchdog

What:		/sys/class/watchdog/watchdogn/bootstatus
Date:		August 2015
Contact:	Wim Van Sebroeck <wim@iguana.be>
Description:
		It is a read only file. It contains status of the watchdog
		device at boot. It is equivalent to WDIOC_GETBOOTSTATUS of
		ioctl interface.

What:		/sys/class/watchdog/watchdogn/identity
Date:		August 2015
Contact:	Wim Van Sebroeck <wim@iguana.be>
Description:
		It is a read only file. It contains identity string of
		watchdog device.

What:		/sys/class/watchdog/watchdogn/nowayout
Date:		August 2015
Contact:	Wim Van Sebroeck <wim@iguana.be>
Description:
		It is a read only file. While reading, it gives '1' if that
		device supports nowayout feature else, it gives '0'.

What:		/sys/class/watchdog/watchdogn/state
Date:		August 2015
Contact:	Wim Van Sebroeck <wim@iguana.be>
Description:
		It is a read only file. It gives active/inactive status of
		watchdog device.

What:		/sys/class/watchdog/watchdogn/status
Date:		August 2015
Contact:	Wim Van Sebroeck <wim@iguana.be>
Description:
		It is a read only file. It contains watchdog device's
		internal status bits. It is equivalent to WDIOC_GETSTATUS
		of ioctl interface.

What:		/sys/class/watchdog/watchdogn/timeleft
Date:		August 2015
Contact:	Wim Van Sebroeck <wim@iguana.be>
Description:
		It is a read only file. It contains value of time left for
		reset generation. It is equivalent to WDIOC_GETTIMELEFT of
		ioctl interface.

What:		/sys/class/watchdog/watchdogn/timeout
Date:		August 2015
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.