On Tue, Jul 18, 2017 at 8:46 PM, Andy Shevchenko
[off-list ref] wrote:

On Tue, Jul 18, 2017 at 8:25 PM, Mark Salyzyn [off-list ref] wrote:

quoted

Go directly to the rtc for persistent wall clock time and print.
Useful if REALTIME is required to be logged in a low level power
management function or when clock activities are suspended.  An
aid to permit user space alignment of kernel activities.

Feature activated by CONFIG_RTC_SHOW_TIME.

What's wrong with procfs device nodes for that?

Ah, it's internal API, ok.

Then would it be possible to use %pt [1] or alike?

[1]: https://www.spinics.net/lists/kernel/msg2528401.html

-- 
With Best Regards,
Andy Shevchenko