X-Git-Url: http://pileus.org/git/?a=blobdiff_plain;f=drivers%2Frtc%2FKconfig;h=4941cade319f5cef06d508d0b1f1354d951c1034;hb=38cdbce7634bdd914b6c6e673c2f6ebedca30d43;hp=cdd97192dc693cc84d075e24af1450ba5aebd2e5;hpb=f9a3d1d74bdacf8a5ef8025233e61546cb809dc8;p=~andy%2Flinux

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index cdd97192dc6..4941cade319 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -97,6 +97,18 @@ config RTC_INTF_DEV
 
 	  If unsure, say Y.
 
+config RTC_INTF_DEV_UIE_EMUL
+	bool "RTC UIE emulation on dev interface"
+	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
+	  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