The /etc/default/rcS file contains variable settings in POSIX format:
Only one assignment is allowed per line. Comments (starting with '#')
are also allowed.
The following variables can be set.
This is used to specify that the hardware clock is incapable of
storing years outside the range of 1994-1999. Set to yes if the
hardware is broken or no if working correctly.
If the hardware clock is not accessible, set to no, in which
case hwclock will not be run. Otherwise, set to yes.
Additional options for hwclock. Unset by default. For example,
this may be use to specify the machine hardware clock type for
The hardware clock device you want to use. Defaults to rtc0.
It should probably match the CONFIG_RTC_HCTOSYS_DEVICE kernel
Roger Leigh <email@example.com>
Feb 2012 HWCLOCK(5)
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