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CONFIG_RTC_INTF_DEV_UIE_EMUL: RTC UIE emulation on dev interface

General informations

The Linux kernel configuration item CONFIG_RTC_INTF_DEV_UIE_EMUL:

Help text

Provides an emulation for RTC_UIE if the underlying rtc chip driver does not expose RTC_UIE ioctls. Those requests generate once-per-second update interrupts, used for synchronization.

The emulation code will read the time from the hardware clock several times per second, please enable this option only if you know that you really need it.

Hardware

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