33b711269a
This patch adds following attributes to watchdog device's sysfs interface to read its different status. * state - reads whether device is active or not * identity - reads Watchdog device's identity string. * timeout - reads current timeout. * timeleft - reads timeleft before watchdog generates a reset * bootstatus - reads status of the watchdog device at boot * status - reads watchdog device's internal status bits * nowayout - reads whether nowayout feature was set or not Testing with iTCO_wdt: # cd /sys/class/watchdog/watchdog1/ # ls bootstatus dev device identity nowayout power state subsystem timeleft timeout uevent # cat identity iTCO_wdt # cat timeout 30 # cat state inactive # echo > /dev/watchdog1 # cat timeleft 26 # cat state active # cat bootstatus 0 # cat nowayout 0 Signed-off-by: Pratyush Anand <panand@redhat.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@iguana.be>
52 lines
1.6 KiB
Plaintext
52 lines
1.6 KiB
Plaintext
What: /sys/class/watchdog/watchdogn/bootstatus
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. It contains status of the watchdog
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device at boot. It is equivalent to WDIOC_GETBOOTSTATUS of
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ioctl interface.
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What: /sys/class/watchdog/watchdogn/identity
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. It contains identity string of
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watchdog device.
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What: /sys/class/watchdog/watchdogn/nowayout
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. While reading, it gives '1' if that
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device supports nowayout feature else, it gives '0'.
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What: /sys/class/watchdog/watchdogn/state
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. It gives active/inactive status of
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watchdog device.
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What: /sys/class/watchdog/watchdogn/status
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. It contains watchdog device's
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internal status bits. It is equivalent to WDIOC_GETSTATUS
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of ioctl interface.
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What: /sys/class/watchdog/watchdogn/timeleft
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. It contains value of time left for
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reset generation. It is equivalent to WDIOC_GETTIMELEFT of
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ioctl interface.
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What: /sys/class/watchdog/watchdogn/timeout
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Date: August 2015
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Contact: Wim Van Sebroeck <wim@iguana.be>
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Description:
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It is a read only file. It is read to know about current
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value of timeout programmed.
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