rtc: add alarm/update irq interfaces

[linux-2.6-omap-h63xx.git] / drivers / rtc / Kconfig

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 123092d8a98484aebde61d7c60cc77639e95c351..165a81843357f230bb1c1ff0f47b9b0139277150 100644 (file)
--- 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