QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
Changing the RTC time from a program |
| Ref. No. |
QNX.000009667 |
| Category(ies) |
Utilities, Installation, Configuration |
| Issue |
How do we change the RTC time from a QNX4 program?
|
| Solution |
Add the following line to the application:
x09 system("rtc -s hw");
Note: Must have root priviledges to do this.
It is recommended that the TZ variable is set correctly, and to keep the real-time clock in UTC. This way, the hardware clock won't have to be changed when switching to/from daylight savings time.
Also: The source code of 'rtc' is available in /usr/free. |
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