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hi, i am developing c program that can set time and date base on my own input. i have chmod 777 /dev/RTC in order to open RTC so that it ...
  1. 02-24-2009 #1
    zam
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    C Programming-set time

    hi,
    i am developing c program that can set time and date base on my own input.
    i have chmod 777 /dev/RTC in order to open RTC so that it can be used.
    But when i try to set time by using "ioctl(fd,RTC_SET_TIME,&rtc_tm)" , i got error state that
    permission denied.
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  2. 02-24-2009 #2
    D-cat
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    Setting the time is a system function, requires root permissions. You might want to develop this one in a VM so you can't damage your system testing as root.
    You just WON the game!
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  3. 02-25-2009 #3
    zam
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    RTC_SET_TIME-how to make sure that permission is granted?
    ....I developing a driver for a device on real linux(ubuntu)....
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