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.
Signed-off-by: David Brownell <[email protected]>
Index: g26/drivers/rtc/Kconfig
===================================================================
--- g26.orig/drivers/rtc/Kconfig 2006-08-04 17:20:34.000000000 -0700
+++ g26/drivers/rtc/Kconfig 2006-08-04 17:38:51.000000000 -0700
@@ -45,8 +45,8 @@ 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 +56,9 @@ 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 +68,11 @@ 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 the 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 +82,8 @@ 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 to synchronization.
comment "RTC drivers"
depends on RTC_CLASS
-
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