Fwd: External devices

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> Now, the thing I don't yet understand is what the wakeup source means
> in this configuration. Wakeup only for a specific device driver ?
Wakeup source has its relevance mostly for system suspend/resume where in
a device (eg keyboard) can pull the system out of suspend mode.

In Runtime-pm, the device is the wake-up source for itself unless there exist
a parent-child relationship ie under some conditions the child can
wakeup the parent.
So there is no such relevance for wakeup device in runtime-pm

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