Commit 9e86ecb6 authored by David Brownell's avatar David Brownell Committed by Linus Torvalds
Browse files

[PATCH] RTC class: Kconfig improvements 



Small updates to make the RTC class Kconfig text be more informative.  This
should help folk used to the drivers/char/rtc.c support, or a single RTC, be
slightly less surprised by the differences.

Also, adds a new RTC_DEBUG option to predefine DEBUG in the framework and its
drivers, while debugging.  That's getting to be a standard idiom, and it's
pretty useful.

Signed-off-by: default avatarDavid Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: default avatarOleg Verych <olecom@flower.upol.cz>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 0847062a

drivers/rtc/Kconfig

+19 −7
Original line number Diff line number Diff line
@@ -37,6 +37,13 @@ config RTC_HCTOSYS_DEVICE 
	  The RTC device that will be used as the source for

	  the system time, usually rtc0.



config RTC_DEBUG

	bool "RTC debug support"

	depends on RTC_CLASS = y

	help

	  Say yes here to enable debugging support in the RTC framework

	  and individual RTC drivers.



comment "RTC interfaces"

	depends on RTC_CLASS
@@ -45,8 +52,8 @@ config RTC_INTF_SYSFS 
	depends on RTC_CLASS && SYSFS

	default RTC_CLASS

	help

	  Say yes here if you want to use your RTC using the sysfs

	  interface, /sys/class/rtc/rtcX .

	  Say yes here if you want to use your RTCs using sysfs interfaces,

	  /sys/class/rtc/rtc0 through /sys/.../rtcN.



	  This driver can also be built as a module. If so, the module

	  will be called rtc-sysfs.
@@ -56,8 +63,9 @@ config RTC_INTF_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 .

	  Say yes here if you want to use your first RTC through the proc

	  interface, /proc/driver/rtc.  Other RTCs will not be available

	  through that API.



	  This driver can also be built as a module. If so, the module

	  will be called rtc-proc.
@@ -67,8 +75,11 @@ config RTC_INTF_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 .

	  Say yes here if you want to use your RTCs using the /dev

	  interfaces, which "udev" sets up as /dev/rtc0 through

	  /dev/rtcN.  You may want to set up a symbolic link so one

	  of these can be accessed as /dev/rtc, which is a name

	  expected by "hwclock" and some other programs.



	  This driver can also be built as a module. If so, the module

	  will be called rtc-dev.
@@ -78,7 +89,8 @@ config RTC_INTF_DEV_UIE_EMUL 
	depends on RTC_INTF_DEV

	help

	  Provides an emulation for RTC_UIE if the underlaying rtc chip

	  driver did not provide RTC_UIE ioctls.

	  driver does not expose RTC_UIE ioctls.  Those requests generate

	  once-per-second update interrupts, used for synchronization.



comment "RTC drivers"

	depends on RTC_CLASS

drivers/rtc/Makefile

+4 −0
Original line number Diff line number Diff line
@@ -2,6 +2,10 @@ 
# Makefile for RTC class/drivers.

#



ifeq ($(CONFIG_RTC_DEBUG),y)

	EXTRA_CFLAGS		+= -DDEBUG

endif



obj-$(CONFIG_RTC_LIB)		+= rtc-lib.o

obj-$(CONFIG_RTC_HCTOSYS)	+= hctosys.o

obj-$(CONFIG_RTC_CLASS)		+= rtc-core.o

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