Because we wanted to minimize the impact on existing user-level apps using
the CMOS clock, we decided to expose an API that was very similar to the one
used today with the legacy RTC driver (driver/char/rtc.c). However, because
-EFI provides a simpler services, not all all ioctl() are available. Also
+EFI provides a simpler services, not all ioctl() are available. Also
new ioctl()s have been introduced for things that EFI provides but not the
legacy.