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[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: David Brownell <dbrownell@users.sourceforge.net>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Oleg Verych <olecom@flower.upol.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
David Brownell 2006-09-30 23:28:14 -07:00 committed by Linus Torvalds
parent 0847062ad5
commit 9e86ecb659
2 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/rtc/Kconfig
View File

@ -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

4
drivers/rtc/Makefile
View File

@ -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