[PATCH] RTC subsystem: proc interface

Add the proc interface to the RTC subsystem.

The first RTC driver which registers with the class will be accessible by
/proc/driver/rtc .

This is required for compatibility with the standard RTC driver and to avoid
breaking any user space application which may erroneusly rely on this.

Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
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 824499920485..200fb06b788a 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -51,6 +51,17 @@ config RTC_INTF_SYSFS
           This driver can also be built as a module. If so, the module
           will be called rtc-sysfs.
 
+config RTC_INTF_PROC
+        tristate "proc"
+        depends on RTC_CLASS && PROC_FS
+        default RTC_CLASS
+        help
+          Say yes here if you want to use your RTC using the proc
+          interface, /proc/driver/rtc .
+
+          This driver can also be built as a module. If so, the module
+          will be called rtc-proc.
+
 comment "RTC drivers"
         depends on RTC_CLASS