[PATCH] RTC subsystem: dev interface

Add the dev interface to the RTC subsystem.

Each RTC will be available under /dev/rtcX .  A symlink from /dev/rtc0 to
/dev/rtc cab be obtained with the following udev rule:

KERNEL=="rtc0", SYMLINK+="rtc"

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 11 insertions, 0 deletions

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 200fb06b788a..8e4dc32058d6 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -62,6 +62,17 @@ config RTC_INTF_PROC
           This driver can also be built as a module. If so, the module
           will be called rtc-proc.
 
+config RTC_INTF_DEV
+        tristate "dev"
+        depends on RTC_CLASS
+        default RTC_CLASS
+        help
+          Say yes here if you want to use your RTC using the dev
+          interface, /dev/rtc .
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-dev.
+
 comment "RTC drivers"
         depends on RTC_CLASS