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authorLinus Torvalds <torvalds@linux-foundation.org>2011-02-18 14:20:46 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2011-02-18 14:20:46 -0800
commit0cc9d5257857608ba85885b75fcada13d359b5d1 (patch)
treec36289844c623f2a3026f629d47cee793fb535ff /drivers/rtc/Kconfig
parent4c3021da451fe0ea1deaba8fa3805d8d065ec84e (diff)
parent456d66ecd09e3bc326b93174745faafb6ac378d6 (diff)
downloadop-kernel-dev-0cc9d5257857608ba85885b75fcada13d359b5d1.zip
op-kernel-dev-0cc9d5257857608ba85885b75fcada13d359b5d1.tar.gz
Merge branch 'rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'rtc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: RTC: Re-enable UIE timer/polling emulation RTC: Revert UIE emulation removal RTC: Release mutex in error path of rtc_alarm_irq_enable
Diffstat (limited to 'drivers/rtc/Kconfig')
-rw-r--r--drivers/rtc/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index cdd9719..4941cad 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
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