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android/Documentation/ABI/testing/sysfs-class-watchdog
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threeeye bc1d038eac REVVL 6 Pro kernel bring-up: full working tree snapshot (2026-09-12)
Squashed backup commit (no shallow-clone history issues) of
xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream
commit 9eece662e) plus all fixes applied to get everpal_defconfig building
clean against a modern (GCC 15.2.0) toolchain -- see the previous commit
message on the lineage-23.2 branch (also in this repo history is not
available here since this is a squashed snapshot; full incremental history
lives in the local DL380 checkout and the upstream GitHub remote).

Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
2026-09-12 13:36:46 +00:00

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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.