Solved

Changing BIOS time from C++

Posted on 2002-04-22
1
1,082 Views
Last Modified: 2008-03-04
Dear,

Does someone knows how to alter the hardware time under linux, from C(++) ?

I use the stime function, but this seems to change only the time of the operating system, without changing the real time clock.

Thanks,
Gregory
0
Comment
Question by:Gregory_seifert
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 4

Accepted Solution

by:
IainHere earned 100 total points
ID: 6963264
The hardware clock would normally be altered using /sbin/hwclock (--systohc I think).  See "man hwclock" for details.

As for calling it from your program,
(A) just call hwclock
(B) hwclock should only be executable by root (of course, any other method to set system clock should also only be usable by root :-).  If this causes problems with your program, redesign your program.  Just out of interest, why do you want to set it programatically?  Sounds like A Bad Idea.
0

Featured Post

VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

The purpose of this article is to fix the unknown display problem in Linux Mint operating system. After installing the OS if you see Display monitor is not recognized then we can install "MESA" utilities to fix this problem or we can install additio…
The purpose of this article is to demonstrate how we can upgrade Python from version 2.7.6 to Python 2.7.10 on the Linux Mint operating system. I am using an Oracle Virtual Box where I have installed Linux Mint operating system version 17.2. Once yo…
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…

623 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question