linux/Documentation/ABI/testing/sysfs-class-wakeup
Tri Vo c8377adfa7 PM / wakeup: Show wakeup sources stats in sysfs
Add an ID and a device pointer to 'struct wakeup_source'. Use them to to
expose wakeup sources statistics in sysfs under
/sys/class/wakeup/wakeup<ID>/*.

Co-developed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Tri Vo <trong@android.com>
Tested-by: Kalesh Singh <kaleshsingh@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2019-08-21 00:20:40 +02:00

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What: /sys/class/wakeup/
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
The /sys/class/wakeup/ directory contains pointers to all
wakeup sources in the kernel at that moment in time.
What: /sys/class/wakeup/.../name
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the name of the wakeup source.
What: /sys/class/wakeup/.../active_count
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the number of times the wakeup source was
activated.
What: /sys/class/wakeup/.../event_count
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the number of signaled wakeup events
associated with the wakeup source.
What: /sys/class/wakeup/.../wakeup_count
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the number of times the wakeup source might
abort suspend.
What: /sys/class/wakeup/.../expire_count
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the number of times the wakeup source's
timeout has expired.
What: /sys/class/wakeup/.../active_time_ms
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the amount of time the wakeup source has
been continuously active, in milliseconds. If the wakeup
source is not active, this file contains '0'.
What: /sys/class/wakeup/.../total_time_ms
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the total amount of time this wakeup source
has been active, in milliseconds.
What: /sys/class/wakeup/.../max_time_ms
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the maximum amount of time this wakeup
source has been continuously active, in milliseconds.
What: /sys/class/wakeup/.../last_change_ms
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
This file contains the monotonic clock time when the wakeup
source was touched last time, in milliseconds.
What: /sys/class/wakeup/.../prevent_suspend_time_ms
Date: June 2019
Contact: Tri Vo <trong@android.com>
Description:
The file contains the total amount of time this wakeup source
has been preventing autosleep, in milliseconds.