[riot-notifications] [RIOT-OS/RIOT] drivers/rtc: Improved documentation (#11360)
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Tue Apr 9 12:56:03 CEST 2019
> I took a look into the implementations of `rtc_set_alarm()`: Those don't match the current documentation nor do they match the proposal here. Most just ignore error handling at all. (E.g. the result of `mktime()` is just used as is, without checking the result.)
Then I actually think we shouldn't invest too much time here. Having *one* rtc alarm is not very useful anyways. IMO, rtc should be completely abstracted and used as low-power timer that gets multiplexed as usual. calendar / clock alarms should then be implemented on top of that.
For a low-level peripheral interface, returning "-1" on any error should be completely acceptable.
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