Merge tag 'perf-core-for-mingo-5.1-20190321' of git://git.kernel.org/pub/scm/linux...
[sfrench/cifs-2.6.git] / Documentation / ABI / testing / sysfs-class-watchdog
1 What:           /sys/class/watchdog/watchdogn/bootstatus
2 Date:           August 2015
3 Contact:        Wim Van Sebroeck <wim@iguana.be>
4 Description:
5                 It is a read only file. It contains status of the watchdog
6                 device at boot. It is equivalent to WDIOC_GETBOOTSTATUS of
7                 ioctl interface.
8
9 What:           /sys/class/watchdog/watchdogn/identity
10 Date:           August 2015
11 Contact:        Wim Van Sebroeck <wim@iguana.be>
12 Description:
13                 It is a read only file. It contains identity string of
14                 watchdog device.
15
16 What:           /sys/class/watchdog/watchdogn/nowayout
17 Date:           August 2015
18 Contact:        Wim Van Sebroeck <wim@iguana.be>
19 Description:
20                 It is a read only file. While reading, it gives '1' if that
21                 device supports nowayout feature else, it gives '0'.
22
23 What:           /sys/class/watchdog/watchdogn/state
24 Date:           August 2015
25 Contact:        Wim Van Sebroeck <wim@iguana.be>
26 Description:
27                 It is a read only file. It gives active/inactive status of
28                 watchdog device.
29
30 What:           /sys/class/watchdog/watchdogn/status
31 Date:           August 2015
32 Contact:        Wim Van Sebroeck <wim@iguana.be>
33 Description:
34                 It is a read only file. It contains watchdog device's
35                 internal status bits. It is equivalent to WDIOC_GETSTATUS
36                 of ioctl interface.
37
38 What:           /sys/class/watchdog/watchdogn/timeleft
39 Date:           August 2015
40 Contact:        Wim Van Sebroeck <wim@iguana.be>
41 Description:
42                 It is a read only file. It contains value of time left for
43                 reset generation. It is equivalent to WDIOC_GETTIMELEFT of
44                 ioctl interface.
45
46 What:           /sys/class/watchdog/watchdogn/timeout
47 Date:           August 2015
48 Contact:        Wim Van Sebroeck <wim@iguana.be>
49 Description:
50                 It is a read only file. It is read to know about current
51                 value of timeout programmed.
52
53 What:           /sys/class/watchdog/watchdogn/pretimeout
54 Date:           December 2016
55 Contact:        Wim Van Sebroeck <wim@iguana.be>
56 Description:
57                 It is a read only file. It specifies the time in seconds before
58                 timeout when the pretimeout interrupt is delivered.  Pretimeout
59                 is an optional feature.
60
61 What:           /sys/class/watchdog/watchdogn/pretimeout_avaialable_governors
62 Date:           February 2017
63 Contact:        Wim Van Sebroeck <wim@iguana.be>
64 Description:
65                 It is a read only file. It shows the pretimeout governors
66                 available for this watchdog.
67
68 What:           /sys/class/watchdog/watchdogn/pretimeout_governor
69 Date:           February 2017
70 Contact:        Wim Van Sebroeck <wim@iguana.be>
71 Description:
72                 It is a read/write file. When read, the currently assigned
73                 pretimeout governor is returned.  When written, it sets
74                 the pretimeout governor.