Dallas/Maxim DS1685 Family

modulename: rtc-ds1685.ko

configname: CONFIG_RTC_DRV_DS1685_FAMILY

Linux Kernel Configuration
└─>Device Drivers
└─>Real Time Clock
└─>Dallas/Maxim DS1685 Family
In linux kernel since version 3.10 (release Date: 2013-06-30)  
If you say yes here you get support for the Dallas/Maxim DS1685
family of real time chips. This family includes the DS1685/DS1687,
DS1689/DS1693, DS17285/DS17287, DS17485/DS17487, and
DS17885/DS17887 chips.

This driver can also be built as a module. If so, the module
will be called rtc-ds1685.

source code: