Generic RTC support

modulename: rtc.ko

and/or

rtc-generic.ko

configname: CONFIG_RTC_DRV_GENERIC

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>Generic RTC support
In linux kernel since version 2.6.30 (release Date: 2009-06-09)  
Say Y or M here to enable RTC support on systems using the generic
RTC abstraction. If you do not know what you are doing, you should
just say Y.

source code:
depends
CONFIG_RTC_CLASS
CONFIG_COMPILE_TEST or CONFIG_M68K or CONFIG_PARISC or CONFIG_PPC or CONFIG_SUPERH