Documentation/ABI/testing/sysfs-class-watchdog

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-class-watchdog

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/testing/sysfs-class-watchdog
Extension
[no extension]
Size
4467 bytes
Lines
130
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: Documentation
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

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/options
Date:		April 2023
Contact:	Thomas Weißschuh
Description:
		It is a read only file. It contains options of watchdog device.

What:		/sys/class/watchdog/watchdogn/fw_version
Date:		April 2023
Contact:	Thomas Weißschuh
Description:
		It is a read only file. It contains firmware version of
		watchdog device.

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/write file. While reading, it gives '1'
		if the device has the nowayout feature set, otherwise
		it gives '0'. Writing a '1' to the file enables the
		nowayout feature. Once set, the nowayout feature
		cannot be disabled, so writing a '0' either has no
		effect (if the feature was already disabled) or
		results in a permission error.

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.

Annotation

Implementation Notes