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Diffstat (limited to 'drivers/rtc/Kconfig')
| -rw-r--r-- | drivers/rtc/Kconfig | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig index 123092d8a98..165a8184335 100644 --- a/drivers/rtc/Kconfig +++ b/drivers/rtc/Kconfig @@ -102,9 +102,13 @@ config RTC_INTF_DEV_UIE_EMUL depends on RTC_INTF_DEV help Provides an emulation for RTC_UIE if the underlying rtc chip - driver does not expose RTC_UIE ioctls. Those requests generate + 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. + config RTC_DRV_TEST tristate "Test driver/device" help |