NAME rtc - real-time clock SYNOPSIS #include <linux/rtc.h> int ioctl( fd , RTC_ request , param ); DESCRIPTION ... hardware clocks which record the current "wall clock" time. These…some system data (such as wall clock) to the pools. FILES /dev/random /dev/urandom NOTESsome system data (such as wall clock) to the pools. FILES /dev/random /dev/urandom NOTES