Linux-RTC-Ioctl v0.8 Provides access to the Linux RTC driver (Real Time Clock), using one of the RTC device files in a Linux system: - /dev/rtc - /dev/rtc0 - /dev/rtc1 - ... Note /dev/rtc is now usually a symlink to /dev/rtc0 Beware the RTC should not be used directly for usual timer or date and time services, but rather it is a low level hardware device that is mostly managed by the OS. To access the RTC device file, usually you need to be root or to be given permissions on the file. The main feature you might be interested in is the wake-up alarm, that on most hardware can pull the computer out of suspend / stand-by mode or even out of shut down (power-on by alarm clock). The RTC runs in a time zone that is independent of the system time zone, as it can be either GMT or the local time zone. Most Linux distributions install with GMT by default, to prevent problems with the transition to and from daylight saving time (DST or summer time). Functionality from this module is based on access to the system device files (/dev/rtc, /dev/rtcN), so the file must be readable for you in order to use the RTC device. Module is written according to the available driver documentation for the RTC Linux kernel driver, found at https://www.kernel.org/doc/Documentation/rtc.txt Uses the ioctl interface (as opposed to the sysfs or procfs interfaces). Linux::RTC::Ioctl is an extension module that will require a C compiler and the system header for installation. Source code repository can be found on github: https://github.com/terminatorul/Linux-RTC-Ioctl INSTALLATION To install this module, run the following commands: perl Build.PL ./Build ./Build test ./Build install SUPPORT AND DOCUMENTATION After installing, you can find documentation for this module with the perldoc command. perldoc Linux::RTC::Ioctl You can also look for information at: RT, CPAN's request tracker (report bugs here) http://rt.cpan.org/NoAuth/Bugs.html?Dist=Linux-RTC-Ioctl AnnoCPAN, Annotated CPAN documentation http://annocpan.org/dist/Linux-RTC-Ioctl CPAN Ratings http://cpanratings.perl.org/d/Linux-RTC-Ioctl Search CPAN http://search.cpan.org/dist/Linux-RTC-Ioctl/ LICENSE AND COPYRIGHT Copyright (C) 2016 Timothy Madden This program is free software; you can redistribute it and/or modify it under the terms of either: the GNU General Public License as published by the Free Software Foundation; or the Artistic License. See L for more information.